v0.14.2

- Save image
- LNURL edit in the profile
- Bugfix crashing the Lightning Tips with non numeric values in the amount.

app/build.gradle

@@ -11,8 +11,8 @@ android {
         applicationId "com.vitorpamplona.amethyst"
         minSdk 26
         targetSdk 33
-        versionCode 28
-        versionName "0.11.2"
+        versionCode 42
+        versionName "0.14.2"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
@@ -22,8 +22,14 @@ android {
 
     buildTypes {
         release {
-            //minifyEnabled false
-            //proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            resValue "string", "app_name", "@string/app_name_release"
+        }
+        debug {
+            applicationIdSuffix '.debug'
+            versionNameSuffix '-DEBUG'
+            resValue "string", "app_name", "@string/app_name_debug"
         }
     }
     compileOptions {
@@ -85,7 +91,7 @@ dependencies {
     implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.11'
 
     // Json Serialization
-    implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.14.1'
+    implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.14.2'
 
     // link preview
     implementation 'tw.com.oneup.www:Baha-UrlPreview:1.0.1'
@@ -110,6 +116,23 @@ dependencies {
     implementation "com.google.accompanist:accompanist-pager:$accompanist_version" // Pager
     implementation "com.google.accompanist:accompanist-pager-indicators:$accompanist_version"
 
+    // For QR generation
+    implementation 'com.google.zxing:core:3.5.1'
+    implementation "androidx.camera:camera-camera2:1.2.1"
+    implementation 'androidx.camera:camera-lifecycle:1.2.1'
+    implementation 'androidx.camera:camera-view:1.2.1'
+
+    // For QR Scanning
+    implementation 'com.google.mlkit:vision-common:17.3.0'
+
+    // Local Barcode Scanning model
+    implementation 'com.google.android.gms:play-services-mlkit-barcode-scanning:18.1.0'
+
+    // Use this dependency to use the translate text
+    implementation 'com.google.mlkit:translate:17.0.1'
+    implementation 'com.google.mlkit:language-id:17.0.4'
+    implementation 'com.google.android.gms:play-services-mlkit-language-id:17.0.0'
+
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'

app/proguard-rules.pro

@@ -26,6 +26,10 @@
 # For the NostrPostr library
 -keep class nostr.postr.** { *; }
 -keep class nostr.postr.events.** { *; }
+# Json parsing
 -keep class com.google.gson.reflect.** { *; }
+-keep class * extends com.google.gson.reflect.TypeToken
+-keep public class * implements java.lang.reflect.Type
+
 -keep class com.vitorpamplona.amethyst.model.** { *; }
 -keep class com.vitorpamplona.amethyst.service.** { *; }

app/src/androidTest/java/com/vitorpamplona/amethyst/UrlUserTagTransformationTest.kt

@@ -6,6 +6,7 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.decodePublicKey
+import com.vitorpamplona.amethyst.model.toHexKey
 import com.vitorpamplona.amethyst.ui.actions.buildAnnotatedStringWithUrlHighlighting
 import org.junit.Assert.*
 import org.junit.Test
@@ -22,12 +23,12 @@ class EUrlUserTagTransformationTest {
   fun useAppContext() {
     // Context of the app under test.
     val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-    assertEquals("com.vitorpamplona.amethyst", appContext.packageName)
+    assertEquals("com.vitorpamplona.amethyst", appContext.packageName.removeSuffix(".debug"))
   }
 
   @Test
   fun transformationText() {
-    val user = LocalCache.getOrCreateUser(decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z"))
+    val user = LocalCache.getOrCreateUser(decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z").toHexKey())
     user.info.displayName = "Vitor Pamplona"
 
     var transformedText = buildAnnotatedStringWithUrlHighlighting(
@@ -61,7 +62,7 @@ class EUrlUserTagTransformationTest {
 
   @Test
   fun transformationTextTwoKeys() {
-    val user = LocalCache.getOrCreateUser(decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z"))
+    val user = LocalCache.getOrCreateUser(decodePublicKey("npub1gcxzte5zlkncx26j68ez60fzkvtkm9e0vrwdcvsjakxf9mu9qewqlfnj5z").toHexKey())
     user.info.displayName = "Vitor Pamplona"
 
     var transformedText = buildAnnotatedStringWithUrlHighlighting(

app/src/androidTest/res/values/strings.xml

@@ -0,0 +1,4 @@
+<resources>
+    <string name="app_name_release">Amethyst</string>
+    <string name="app_name_debug">Amethyst Debug</string>
+</resources>

app/src/main/AndroidManifest.xml

@@ -4,9 +4,15 @@
 
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <!-- Used for SDK < 29 -->
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
 
     <application
-        android:allowBackup="true"
+        android:allowBackup="false"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@drawable/amethyst"
@@ -15,17 +21,21 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Amethyst"
         android:largeHeap="true"
-        tools:targetApi="31">
+        android:usesCleartextTraffic="true"
+        tools:targetApi="33">
         <activity
+            android:label="@string/app_name"
             android:name=".ui.MainActivity"
             android:exported="true"
+            android:windowSoftInputMode="adjustResize"
             android:theme="@style/Theme.Amethyst">
-            <intent-filter>
+
+            <intent-filter android:label="Amethyst">
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
 
-            <intent-filter>
+            <intent-filter android:label="Amethyst">
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
@@ -36,6 +46,10 @@
                 android:name="android.app.lib_name"
                 android:value="" />
         </activity>
+
+        <meta-data
+            android:name="com.google.mlkit.vision.DEPENDENCIES"
+            android:value="barcode" />
     </application>
 
 </manifest>

app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt

@@ -1,17 +1,18 @@
 package com.vitorpamplona.amethyst
 
 import android.content.Context
+import com.google.gson.GsonBuilder
+import com.google.gson.reflect.TypeToken
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.model.Channel
-import com.vitorpamplona.amethyst.model.DefaultChannels
-import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.ui.navigation.Route
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
+import java.util.Locale
 import nostr.postr.Persona
 import nostr.postr.toHex
 
 class LocalPreferences(context: Context) {
   val encryptedPreferences = EncryptedStorage().preferences(context)
+  val gson = GsonBuilder().create()
 
   fun clearEncryptedStorage() {
     encryptedPreferences.edit().apply {
@@ -19,6 +20,9 @@ class LocalPreferences(context: Context) {
       remove("nostr_pubkey")
       remove("following_channels")
       remove("hidden_users")
+      remove("relays")
+      remove("dontTranslateFrom")
+      remove("translateTo")
     }.apply()
   }
 
@@ -28,6 +32,9 @@ class LocalPreferences(context: Context) {
       account.loggedIn.pubKey.let { putString("nostr_pubkey", it.toHex()) }
       account.followingChannels.let { putStringSet("following_channels", it) }
       account.hiddenUsers.let { putStringSet("hidden_users", it) }
+      account.localRelays.let { putString("relays", gson.toJson(it)) }
+      account.dontTranslateFrom.let { putStringSet("dontTranslateFrom", it) }
+      account.translateTo.let { putString("translateTo", it) }
     }.apply()
   }
 
@@ -35,14 +42,24 @@ class LocalPreferences(context: Context) {
     encryptedPreferences.apply {
       val privKey = getString("nostr_privkey", null)
       val pubKey = getString("nostr_pubkey", null)
-      val followingChannels = getStringSet("following_channels", DefaultChannels)?.toMutableSet() ?: DefaultChannels.toMutableSet()
-      val hiddenUsers = getStringSet("hidden_users", emptySet())?.toMutableSet() ?: mutableSetOf()
+      val followingChannels = getStringSet("following_channels", null) ?: setOf()
+      val hiddenUsers = getStringSet("hidden_users", emptySet()) ?: setOf()
+      val localRelays = gson.fromJson(
+        getString("relays", "[]"),
+        object : TypeToken<Set<RelaySetupInfo>>() {}.type
+      ) ?: setOf<RelaySetupInfo>()
+
+      val dontTranslateFrom = getStringSet("dontTranslateFrom", null) ?: setOf()
+      val translateTo = getString("translateTo", null) ?: Locale.getDefault().language
 
       if (pubKey != null) {
         return Account(
           Persona(privKey = privKey?.toByteArray(), pubKey = pubKey.toByteArray()),
           followingChannels,
-          hiddenUsers
+          hiddenUsers,
+          localRelays,
+          dontTranslateFrom,
+          translateTo
         )
       } else {
         return null

app/src/main/java/com/vitorpamplona/amethyst/ServiceManager.kt

@@ -1,7 +1,7 @@
 package com.vitorpamplona.amethyst
 
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.service.Constants
+import com.vitorpamplona.amethyst.service.relays.Constants
 import com.vitorpamplona.amethyst.service.NostrAccountDataSource
 import com.vitorpamplona.amethyst.service.NostrChannelDataSource
 import com.vitorpamplona.amethyst.service.NostrChatroomListDataSource
@@ -29,7 +29,7 @@ object ServiceManager {
     val myAccount = account
 
     if (myAccount != null) {
-      Client.connect(myAccount.activeRelays() ?: Constants.defaultRelays)
+      Client.connect(myAccount.convertLocalRelays())
 
       // start services
       NostrAccountDataSource.account = myAccount
@@ -55,7 +55,7 @@ object ServiceManager {
       NostrChatroomListDataSource.start()
     } else {
       // if not logged in yet, start a basic service wit default relays
-      Client.connect()
+      Client.connect(Constants.convertDefaultRelays())
     }
   }
 

app/src/main/java/com/vitorpamplona/amethyst/lnurl/LightningAddressResolver.kt

@@ -0,0 +1,106 @@
+package com.vitorpamplona.amethyst.lnurl
+
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import kotlin.math.ln
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import nostr.postr.Bech32
+import okhttp3.Call
+import okhttp3.Callback
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import okhttp3.Response
+
+class LightningAddressResolver {
+  val client = OkHttpClient.Builder().build()
+
+  fun assembleUrl(lnaddress: String): String? {
+    val parts = lnaddress.split("@")
+
+    if (parts.size != 2) {
+      return null
+    }
+
+    return "https://${parts[1]}/.well-known/lnurlp/${parts[0]}"
+  }
+
+  fun fetchLightningAddressJson(lnaddress: String, onSucess: (String) -> Unit) {
+    val scope = CoroutineScope(Job() + Dispatchers.IO)
+    scope.launch {
+      fetchLightningAddressJsonSuspend(lnaddress, onSucess)
+    }
+  }
+
+  private suspend fun fetchLightningAddressJsonSuspend(lnaddress: String, onSucess: (String) -> Unit) {
+    val url = assembleUrl(lnaddress) ?: return
+
+    withContext(Dispatchers.IO) {
+      val request: Request = Request.Builder().url(url).build()
+
+      client.newCall(request).enqueue(object : Callback {
+        override fun onResponse(call: Call, response: Response) {
+          response.use {
+            onSucess(response.body.string())
+          }
+        }
+
+        override fun onFailure(call: Call, e: java.io.IOException) {
+          e.printStackTrace()
+        }
+      })
+    }
+  }
+
+  fun fetchLightningInvoice(lnCallback: String, milliSats: Long, message: String, onSucess: (String) -> Unit) {
+    val scope = CoroutineScope(Job() + Dispatchers.IO)
+    scope.launch {
+      fetchLightningInvoiceSuspend(lnCallback, milliSats, message, onSucess)
+    }
+  }
+
+  private suspend fun fetchLightningInvoiceSuspend(lnCallback: String, milliSats: Long, message: String, onSucess: (String) -> Unit) {
+    val urlBinder = if (lnCallback.contains("?")) "&" else "?"
+    val url = "$lnCallback${urlBinder}amount=$milliSats&comment=$message"
+
+    withContext(Dispatchers.IO) {
+      val request: Request = Request.Builder().url(url).build()
+
+      client.newCall(request).enqueue(object : Callback {
+        override fun onResponse(call: Call, response: Response) {
+          response.use {
+            onSucess(response.body.string())
+          }
+        }
+
+        override fun onFailure(call: Call, e: java.io.IOException) {
+          e.printStackTrace()
+        }
+      })
+    }
+  }
+
+  fun lnAddressToLnUrl(lnaddress: String, onSucess: (String) -> Unit) {
+    fetchLightningAddressJson(lnaddress) {
+      onSucess(Bech32.encodeBytes("lnurl",it.toByteArray(), Bech32.Encoding.Bech32))
+    }
+  }
+
+  fun lnAddressInvoice(lnaddress: String, milliSats: Long, message: String, onSucess: (String) -> Unit) {
+    val mapper = jacksonObjectMapper()
+
+    fetchLightningAddressJson(lnaddress) {
+      mapper.readTree(it)?.get("callback")?.asText()?.let { callback ->
+        fetchLightningInvoice(callback, milliSats, message,
+          onSucess = {
+            mapper.readTree(it)?.get("pr")?.asText()?.let { pr ->
+              onSucess(pr)
+            }
+          }
+        )
+      }
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -1,16 +1,22 @@
 package com.vitorpamplona.amethyst.model
 
+import android.content.res.Resources
+import androidx.core.os.ConfigurationCompat
 import androidx.lifecycle.LiveData
-import com.vitorpamplona.amethyst.service.Constants
+import com.vitorpamplona.amethyst.service.relays.Constants
 import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
 import com.vitorpamplona.amethyst.service.relays.Client
+import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.service.relays.RelayPool
 import java.util.Date
+import java.util.Locale
+import java.util.concurrent.atomic.AtomicBoolean
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -31,14 +37,25 @@ val DefaultChannels = setOf(
   "42224859763652914db53052103f0b744df79dfc4efef7e950fc0802fc3df3c5"  // -> Amethyst's Group
 )
 
+fun getLanguagesSpokenByUser(): Set<String> {
+  val languageList = ConfigurationCompat.getLocales(Resources.getSystem().getConfiguration())
+  val codedList = mutableSetOf<String>()
+  for (i in 0 until languageList.size()) {
+    languageList.get(i)?.let { codedList.add(it.language) }
+  }
+  return codedList
+}
+
 class Account(
   val loggedIn: Persona,
-  val followingChannels: MutableSet<String> = DefaultChannels.toMutableSet(),
-  val hiddenUsers: MutableSet<String> = mutableSetOf()
+  var followingChannels: Set<String> = DefaultChannels,
+  var hiddenUsers: Set<String> = setOf(),
+  var localRelays: Set<RelaySetupInfo> = Constants.defaultRelays.toSet(),
+  var dontTranslateFrom: Set<String> = getLanguagesSpokenByUser(),
+  var translateTo: String = Locale.getDefault().language
 ) {
-
   fun userProfile(): User {
-    return LocalCache.getOrCreateUser(loggedIn.pubKey)
+    return LocalCache.getOrCreateUser(loggedIn.pubKey.toHexKey())
   }
 
   fun followingChannels(): List<Channel> {
@@ -46,7 +63,7 @@ class Account(
   }
 
   fun hiddenUsers(): List<User> {
-    return hiddenUsers.map { LocalCache.getOrCreateUser(it.toByteArray()) }
+    return hiddenUsers.map { LocalCache.getOrCreateUser(it) }
   }
 
   fun isWriteable(): Boolean {
@@ -90,7 +107,7 @@ class Account(
   fun reactTo(note: Note) {
     if (!isWriteable()) return
 
-    if (note.reactions.firstOrNull { it.author == userProfile() && it.event?.content == "+" } != null) {
+    if (note.hasReacted(userProfile(), "+")) {
       // has already liked this note
       return
     }
@@ -102,12 +119,10 @@ class Account(
     }
   }
 
-  fun report(note: Note) {
+  fun report(note: Note, type: ReportEvent.ReportType) {
     if (!isWriteable()) return
 
-    if (
-      note.reactions.firstOrNull { it.author == userProfile() && it.event?.content == "⚠️"} != null
-    ) {
+    if (note.hasReacted(userProfile(), "⚠️")) {
       // has already liked this note
       return
     }
@@ -117,16 +132,31 @@ class Account(
       Client.send(event)
       LocalCache.consume(event)
     }
+
+    note.event?.let {
+      val event = ReportEvent.create(it, type, loggedIn.privKey!!)
+      Client.send(event)
+      LocalCache.consume(event)
+    }
+  }
+
+  fun report(user: User, type: ReportEvent.ReportType) {
+    if (!isWriteable()) return
+
+    if (user.hasReport(userProfile(), type)) {
+      // has already reported this note
+      return
+    }
+
+    val event = ReportEvent.create(user.pubkeyHex, type, loggedIn.privKey!!)
+    Client.send(event)
+    LocalCache.consume(event)
   }
 
   fun boost(note: Note) {
     if (!isWriteable()) return
 
-    val currentTime = Date().time / 1000
-
-    if (
-      note.boosts.firstOrNull { it.author == userProfile() && (it?.event?.createdAt ?: 0) > currentTime - (60 * 5)} != null // 5 minute protection
-    ) {
+    if (note.hasBoosted(userProfile())) {
       // has already bosted in the past 5mins 
       return
     }
@@ -210,7 +240,7 @@ class Account(
       privateKey = loggedIn.privKey!!
     )
     Client.send(signedEvent)
-    LocalCache.consume(signedEvent)
+    LocalCache.consume(signedEvent, null)
   }
 
   fun sendPrivateMeesage(message: String, toUser: String, replyingTo: Note? = null) {
@@ -225,7 +255,7 @@ class Account(
       advertiseNip18 = false
     )
     Client.send(signedEvent)
-    LocalCache.consume(signedEvent)
+    LocalCache.consume(signedEvent, null)
   }
 
   fun sendCreateNewChannel(name: String, about: String, picture: String) {
@@ -247,23 +277,23 @@ class Account(
   }
 
   fun joinChannel(idHex: String) {
-    followingChannels.add(idHex)
-    invalidateData()
+    followingChannels = followingChannels + idHex
+    invalidateData(live)
   }
 
   fun leaveChannel(idHex: String) {
-    followingChannels.remove(idHex)
-    invalidateData()
+    followingChannels = followingChannels - idHex
+    invalidateData(live)
   }
 
   fun hideUser(pubkeyHex: String) {
-    hiddenUsers.add(pubkeyHex)
-    invalidateData()
+    hiddenUsers = hiddenUsers + pubkeyHex
+    invalidateData(live)
   }
 
   fun showUser(pubkeyHex: String) {
-    hiddenUsers.remove(pubkeyHex)
-    invalidateData()
+    hiddenUsers = hiddenUsers - pubkeyHex
+    invalidateData(live)
   }
 
   fun sendChangeChannel(name: String, about: String, picture: String, channel: Channel) {
@@ -282,7 +312,7 @@ class Account(
     Client.send(event)
     LocalCache.consume(event)
 
-    followingChannels.add(event.id.toHex())
+    joinChannel(event.id.toHex())
   }
 
   fun decryptContent(note: Note): String? {
@@ -315,15 +345,34 @@ class Account(
     }
   }
 
+  fun addDontTranslateFrom(languageCode: String) {
+    dontTranslateFrom = dontTranslateFrom.plus(languageCode)
+    invalidateData(liveLanguages)
+  }
+
+  fun updateTranslateTo(languageCode: String) {
+    translateTo = languageCode
+    invalidateData(liveLanguages)
+  }
+
   fun activeRelays(): Array<Relay>? {
-    return userProfile().relays?.map { Relay(it.key, it.value.read, it.value.write) }?.toTypedArray()
+    return userProfile().relays?.map {
+      val localFeedTypes = localRelays.firstOrNull() { localRelay -> localRelay.url == it.key }?.feedTypes ?: FeedType.values().toSet()
+      Relay(it.key, it.value.read, it.value.write, localFeedTypes)
+    }?.toTypedArray()
+  }
+
+  fun convertLocalRelays(): Array<Relay> {
+    return localRelays.map {
+      Relay(it.url, it.read, it.write, it.feedTypes)
+    }.toTypedArray()
   }
 
   init {
     userProfile().subscribe(object: User.Listener() {
       override fun onRelayChange() {
         Client.disconnect()
-        Client.connect(activeRelays() ?: Constants.defaultRelays)
+        Client.connect(activeRelays() ?: convertLocalRelays())
         RelayPool.requestAndWatch()
       }
     })
@@ -331,39 +380,62 @@ class Account(
 
   // Observers line up here.
   val live: AccountLiveData = AccountLiveData(this)
+  val liveLanguages: AccountLiveData = AccountLiveData(this)
+
+  var handlerWaiting = AtomicBoolean()
 
-  // Refreshes observers in batches.
-  var handlerWaiting = false
   @Synchronized
-  fun invalidateData() {
-    if (handlerWaiting) return
+  private fun invalidateData(live: AccountLiveData) {
+    if (handlerWaiting.getAndSet(true)) return
 
-    handlerWaiting = true
+    handlerWaiting.set(true)
     val scope = CoroutineScope(Job() + Dispatchers.Default)
     scope.launch {
       delay(100)
       live.refresh()
-      handlerWaiting = false
+      handlerWaiting.set(false)
     }
   }
 
+  fun isHidden(user: User) = user in hiddenUsers()
 
   fun isAcceptable(user: User): Boolean {
     return user !in hiddenUsers()  // if user hasn't hided this author
+        && user.reportsBy( userProfile() ).isEmpty() // if user has not reported this post
+        && user.reportsBy( userProfile().follows ).size < 5
   }
 
   fun isAcceptableDirect(note: Note): Boolean {
-    return note.reports.firstOrNull { it.author == userProfile() } == null // if user has not reported this post
-        && note.reports.filter { it.author in userProfile().follows }.size < 5 // if it has 5 reports by reliable users
+    return note.reportsBy( userProfile() ).isEmpty()  // if user has not reported this post
+        && note.reportsBy( userProfile().follows ).size < 5 // if it has 5 reports by reliable users
   }
 
   fun isAcceptable(note: Note): Boolean {
     return note.author?.let { isAcceptable(it) } ?: true // if user hasn't hided this author
         && isAcceptableDirect(note)
         && (note.event !is RepostEvent
-          || (note.event is RepostEvent && note.replyTo?.firstOrNull { isAcceptableDirect(note) } != null)
+          || (note.event is RepostEvent && note.replyTo?.firstOrNull { isAcceptableDirect(it) } != null)
         ) // is not a reaction about a blocked post
   }
+
+  fun getRelevantReports(note: Note): Set<Note> {
+    val followsPlusMe = userProfile().follows + userProfile()
+
+    val innerReports = if (note.event is RepostEvent) {
+      note.replyTo?.map { getRelevantReports(it) }?.flatten() ?: emptyList()
+    } else {
+      emptyList()
+    }
+
+    return (note.reportsBy(followsPlusMe) +
+          (note.author?.reportsBy(followsPlusMe) ?: emptyList()) +
+          innerReports).toSet()
+  }
+
+  fun saveRelayList(value: List<RelaySetupInfo>) {
+    localRelays = value.toSet()
+    sendNewRelayList(value.associate { it.url to ContactListEvent.ReadWrite(it.read, it.write) } )
+  }
 }
 
 class AccountLiveData(private val account: Account): LiveData<AccountState>(AccountState(account)) {

app/src/main/java/com/vitorpamplona/amethyst/model/Channel.kt

@@ -17,6 +17,10 @@ class Channel(val id: ByteArray) {
 
     val notes = ConcurrentHashMap<HexKey, Note>()
 
+    fun toBestDisplayName(): String {
+        return info.name ?: idDisplayHex
+    }
+
     @Synchronized
     fun addNote(note: Note) {
         notes[note.idHex] = note

app/src/main/java/com/vitorpamplona/amethyst/model/Hex.kt

@@ -11,6 +11,17 @@ import nostr.postr.toHex
 /** Makes the distinction between String and Hex **/
 typealias HexKey = String
 
+typealias NPubKey = String
+typealias NoteId = String
+
+fun NPubKey.toDisplayKey(): String {
+  return this.toShortenHex()
+}
+
+fun NoteId.toDisplayId(): String {
+  return this.toShortenHex()
+}
+
 fun ByteArray.toNote() = Bech32.encodeBytes(hrp = "note", this, Bech32.Encoding.Bech32)
 
 fun ByteArray.toHexKey(): HexKey {

app/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt

@@ -11,6 +11,7 @@ import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMuteUserEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
 import java.io.ByteArrayInputStream
 import java.time.Instant
@@ -18,6 +19,7 @@ import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Collections
 import java.util.concurrent.ConcurrentHashMap
+import com.vitorpamplona.amethyst.service.relays.Relay
 import nostr.postr.events.ContactListEvent
 import nostr.postr.events.DeletionEvent
 import nostr.postr.events.Event
@@ -39,10 +41,9 @@ object LocalCache {
   val channels = ConcurrentHashMap<HexKey, Channel>()
 
   @Synchronized
-  fun getOrCreateUser(pubkey: ByteArray): User {
-    val key = pubkey.toHexKey()
+  fun getOrCreateUser(key: HexKey): User {
     return users[key] ?: run {
-      val answer = User(pubkey)
+      val answer = User(key)
       users.put(key, answer)
       answer
     }
@@ -69,10 +70,8 @@ object LocalCache {
 
   fun consume(event: MetadataEvent) {
     // new event
-    val oldUser = getOrCreateUser(event.pubKey)
+    val oldUser = getOrCreateUser(event.pubKey.toHexKey())
     if (event.createdAt > oldUser.updatedMetadataAt) {
-      //Log.d("MT", "New User ${users.size} ${event.contactMetaData.name}")
-
       val newUser = try {
         metadataParser.readValue<UserMetadata>(ByteArrayInputStream(event.content.toByteArray(Charsets.UTF_8)), UserMetadata::class.java)
       } catch (e: Exception) {
@@ -83,6 +82,8 @@ object LocalCache {
 
       oldUser.updateUserInfo(newUser, event.createdAt)
       oldUser.latestMetadata = event
+
+      //Log.d("MT", "New User Metadata ${oldUser.pubkeyDisplayHex} ${oldUser.toBestDisplayName()}")
     } else {
       //Log.d("MT","Relay sent a previous Metadata Event ${oldUser.toBestDisplayName()} ${formattedDateTime(event.createdAt)} > ${formattedDateTime(oldUser.updatedAt)}")
     }
@@ -93,22 +94,28 @@ object LocalCache {
       .format(DateTimeFormatter.ofPattern("uuuu MMM d hh:mm a"))
   }
 
-  fun consume(event: TextNoteEvent) {
+  fun consume(event: TextNoteEvent, relay: Relay? = null) {
     val note = getOrCreateNote(event.id.toHex())
 
+    val author = getOrCreateUser(event.pubKey.toHexKey())
+
+    if (relay != null) {
+      author.addRelay(relay, event.createdAt)
+      note.addRelay(relay)
+    }
+
     // Already processed this event.
     if (note.event != null) return
 
-    val author = getOrCreateUser(event.pubKey)
-    val mentions = Collections.synchronizedList(event.mentions.map { getOrCreateUser(decodePublicKey(it)) })
-    val replyTo = Collections.synchronizedList(event.replyTos.map { getOrCreateNote(it) }.toMutableList())
+    val mentions = event.mentions.map { getOrCreateUser(it) }
+    val replyTo = event.replyTos.map { getOrCreateNote(it) }
 
     note.loadEvent(event, author, mentions, replyTo)
 
     //Log.d("TN", "New Note (${notes.size},${users.size}) ${note.author?.toBestDisplayName()} ${note.event?.content?.take(100)} ${formattedDateTime(event.createdAt)}")
 
     // Prepares user's profile view.
-    author.notes.add(note)
+    author.addNote(note)
 
     // Adds notifications to users.
     mentions.forEach {
@@ -131,7 +138,7 @@ object LocalCache {
   }
 
   fun consume(event: ContactListEvent) {
-    val user = getOrCreateUser(event.pubKey)
+    val user = getOrCreateUser(event.pubKey.toHexKey())
 
     if (event.createdAt > user.updatedFollowsAt) {
       //Log.d("CL", "AAA ${user.toBestDisplayName()} ${event.follows.size}")
@@ -139,7 +146,7 @@ object LocalCache {
         event.follows.map {
           try {
             val pubKey = decodePublicKey(it.pubKeyHex)
-            getOrCreateUser(pubKey)
+            getOrCreateUser(pubKey.toHexKey())
           } catch (e: Exception) {
             println("Could not parse Hex key: ${it.pubKeyHex}")
             println("UpdateFollows: " + event.toJson())
@@ -157,6 +164,7 @@ object LocalCache {
               event.content,
               object : TypeToken<Map<String, ContactListEvent.ReadWrite>>() {}.type
             )
+
           user.updateRelays(relays)
         }
       } catch (e: Exception) {
@@ -167,19 +175,24 @@ object LocalCache {
     }
   }
 
-  fun consume(event: PrivateDmEvent) {
+  fun consume(event: PrivateDmEvent, relay: Relay?) {
     val note = getOrCreateNote(event.id.toHex())
+    val author = getOrCreateUser(event.pubKey.toHexKey())
+
+    if (relay != null) {
+      author.addRelay(relay, event.createdAt)
+      note.addRelay(relay)
+    }
 
     // Already processed this event.
     if (note.event != null) return
 
-    val author = getOrCreateUser(event.pubKey)
-    val recipient = event.recipientPubKey?.let { getOrCreateUser(it) }
+    val recipient = event.recipientPubKey?.let { getOrCreateUser(it.toHexKey()) }
 
     //Log.d("PM", "${author.toBestDisplayName()} to ${recipient?.toBestDisplayName()}")
 
-    val repliesTo = event.tags.filter { it.firstOrNull() == "e" }.mapNotNull { it.getOrNull(1) }.map { getOrCreateNote(it) }.toMutableList()
-    val mentions = event.tags.filter { it.firstOrNull() == "p" }.mapNotNull { it.getOrNull(1) }.map { getOrCreateUser(decodePublicKey(it)) }
+    val repliesTo = event.tags.filter { it.firstOrNull() == "e" }.mapNotNull { it.getOrNull(1) }.map { getOrCreateNote(it) }
+    val mentions = event.tags.filter { it.firstOrNull() == "p" }.mapNotNull { it.getOrNull(1) }.map { getOrCreateUser(it) }
 
     note.loadEvent(event, author, mentions, repliesTo)
 
@@ -203,14 +216,14 @@ object LocalCache {
 
     //Log.d("TN", "New Boost (${notes.size},${users.size}) ${note.author?.toBestDisplayName()} ${formattedDateTime(event.createdAt)}")
 
-    val author = getOrCreateUser(event.pubKey)
-    val mentions = event.originalAuthor.map { getOrCreateUser(decodePublicKey(it)) }.toList()
-    val repliesTo = event.boostedPost.map { getOrCreateNote(it) }.toMutableList()
+    val author = getOrCreateUser(event.pubKey.toHexKey())
+    val mentions = event.originalAuthor.map { getOrCreateUser(it) }
+    val repliesTo = event.boostedPost.map { getOrCreateNote(it) }
 
     note.loadEvent(event, author, mentions, repliesTo)
 
     // Prepares user's profile view.
-    author.notes.add(note)
+    author.addNote(note)
 
     // Adds notifications to users.
     mentions.forEach {
@@ -229,14 +242,14 @@ object LocalCache {
   }
 
   fun consume(event: ReactionEvent) {
-    val note = getOrCreateNote(event.id.toHex())
+    val note = getOrCreateNote(event.id.toHexKey())
 
     // Already processed this event.
     if (note.event != null) return
 
-    val author = getOrCreateUser(event.pubKey)
-    val mentions = event.originalAuthor.map { getOrCreateUser(decodePublicKey(it)) }
-    val repliesTo = event.originalPost.map { getOrCreateNote(it) }.toMutableList()
+    val author = getOrCreateUser(event.pubKey.toHexKey())
+    val mentions = event.originalAuthor.map { getOrCreateUser(it) }
+    val repliesTo = event.originalPost.map { getOrCreateNote(it) }
 
     note.loadEvent(event, author, mentions, repliesTo)
 
@@ -273,11 +286,35 @@ object LocalCache {
     }
   }
 
+  fun consume(event: ReportEvent) {
+    val note = getOrCreateNote(event.id.toHex())
+
+    // Already processed this event.
+    if (note.event != null) return
+
+    val author = getOrCreateUser(event.pubKey.toHexKey())
+    val mentions = event.reportedAuthor.map { getOrCreateUser(it) }
+    val repliesTo = event.reportedPost.map { getOrCreateNote(it) }
+
+    note.loadEvent(event, author, mentions, repliesTo)
+
+    //Log.d("RP", "New Report ${event.content} by ${note.author?.toBestDisplayName()} ${formattedDateTime(event.createdAt)}")
+    // Adds notifications to users.
+    if (repliesTo.isEmpty()) {
+      mentions.forEach {
+        it.addReport(note)
+      }
+    }
+    repliesTo.forEach {
+      it.addReport(note)
+    }
+  }
+
   fun consume(event: ChannelCreateEvent) {
     //Log.d("MT", "New Event ${event.content} ${event.id.toHex()}")
     // new event
     val oldChannel = getOrCreateChannel(event.id.toHex())
-    val author = getOrCreateUser(event.pubKey)
+    val author = getOrCreateUser(event.pubKey.toHexKey())
     if (event.createdAt > oldChannel.updatedMetadataAt) {
       if (oldChannel.creator == null || oldChannel.creator == author) {
         oldChannel.updateChannelInfo(author, event.channelInfo, event.createdAt)
@@ -285,7 +322,7 @@ object LocalCache {
         val note = getOrCreateNote(event.id.toHex())
         oldChannel.addNote(note)
         note.channel = oldChannel
-        note.loadEvent(event, author, emptyList(), mutableListOf())
+        note.loadEvent(event, author, emptyList(), emptyList())
 
         refreshObservers()
       }
@@ -299,7 +336,7 @@ object LocalCache {
 
     // new event
     val oldChannel = getOrCreateChannel(event.channel)
-    val author = getOrCreateUser(event.pubKey)
+    val author = getOrCreateUser(event.pubKey.toHexKey())
     if (event.createdAt > oldChannel.updatedMetadataAt) {
       if (oldChannel.creator == null || oldChannel.creator == author) {
         oldChannel.updateChannelInfo(author, event.channelInfo, event.createdAt)
@@ -307,7 +344,7 @@ object LocalCache {
         val note = getOrCreateNote(event.id.toHex())
         oldChannel.addNote(note)
         note.channel = oldChannel
-        note.loadEvent(event, author, emptyList(), mutableListOf())
+        note.loadEvent(event, author, emptyList(), emptyList())
 
         refreshObservers()
       }
@@ -316,7 +353,7 @@ object LocalCache {
     }
   }
 
-  fun consume(event: ChannelMessageEvent) {
+  fun consume(event: ChannelMessageEvent, relay: Relay?) {
     if (event.channel.isNullOrBlank()) return
 
     val channel = getOrCreateChannel(event.channel)
@@ -324,17 +361,20 @@ object LocalCache {
     val note = getOrCreateNote(event.id.toHex())
     channel.addNote(note)
 
+    val author = getOrCreateUser(event.pubKey.toHexKey())
+
+    if (relay != null) {
+      author.addRelay(relay, event.createdAt)
+      note.addRelay(relay)
+    }
+
     // Already processed this event.
     if (note.event != null) return
 
-    val author = getOrCreateUser(event.pubKey)
-    val mentions = Collections.synchronizedList(event.mentions.map { getOrCreateUser(decodePublicKey(it)) })
-    val replyTo = Collections.synchronizedList(
-      event.replyTos
-        .map { getOrCreateNote(it) }
-        .filter { it.event !is ChannelCreateEvent }
-        .toMutableList()
-    )
+    val mentions = event.mentions.map { getOrCreateUser(it) }
+    val replyTo = event.replyTos
+      .map { getOrCreateNote(it) }
+      .filter { it.event !is ChannelCreateEvent }
 
     note.channel = channel
     note.loadEvent(event, author, mentions, replyTo)

app/src/main/java/com/vitorpamplona/amethyst/model/Note.kt

@@ -1,52 +1,66 @@
 package com.vitorpamplona.amethyst.model
 
-import android.os.Handler
-import android.os.Looper
 import androidx.lifecycle.LiveData
 import com.vitorpamplona.amethyst.service.NostrSingleEventDataSource
+import com.vitorpamplona.amethyst.service.model.ReactionEvent
+import com.vitorpamplona.amethyst.service.model.RepostEvent
 import com.vitorpamplona.amethyst.ui.note.toShortenHex
 import fr.acinq.secp256k1.Hex
 import java.time.Instant
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Collections
-import java.util.Date
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import com.vitorpamplona.amethyst.service.relays.Relay
+import java.util.Date
+import java.util.concurrent.atomic.AtomicBoolean
+import java.util.regex.Matcher
+import java.util.regex.Pattern
 import nostr.postr.events.Event
 
+val tagSearch = Pattern.compile("(?:\\s|\\A)\\#\\[([0-9]+)\\]")
+
 class Note(val idHex: String) {
     // These fields are always available.
     // They are immutable
     val id = Hex.decode(idHex)
-    val idDisplayHex = id.toShortenHex()
+    val idDisplayNote = id.toNote().toShortenHex()
 
     // These fields are only available after the Text Note event is received.
     // They are immutable after that.
     var event: Event? = null
     var author: User? = null
     var mentions: List<User>? = null
-    var replyTo: MutableList<Note>? = null
+    var replyTo: List<Note>? = null
 
     // These fields are updated every time an event related to this note is received.
-    val replies = Collections.synchronizedSet(mutableSetOf<Note>())
-    val reactions = Collections.synchronizedSet(mutableSetOf<Note>())
-    val boosts = Collections.synchronizedSet(mutableSetOf<Note>())
+    var replies = setOf<Note>()
+        private set
+    var reactions = setOf<Note>()
+        private set
+    var boosts = setOf<Note>()
+        private set
+    var reports = setOf<Note>()
+        private set
 
-    val reports = Collections.synchronizedSet(mutableSetOf<Note>())
+    var relays = setOf<String>()
+        private set
 
     var channel: Channel? = null
 
-    fun loadEvent(event: Event, author: User, mentions: List<User>, replyTo: MutableList<Note>) {
+    var lastReactionsDownloadTime: Long? = null
+
+    fun loadEvent(event: Event, author: User, mentions: List<User>, replyTo: List<Note>) {
         this.event = event
         this.author = author
         this.mentions = mentions
         this.replyTo = replyTo
 
-        invalidateData(live)
+        live.invalidateData()
     }
 
     fun formattedDateTime(timestamp: Long): String {
@@ -77,35 +91,96 @@ class Note(val idHex: String) {
     }
 
     fun addReply(note: Note) {
-        if (replies.add(note))
-            invalidateData(liveReplies)
+        if (note !in replies) {
+            replies = replies + note
+            liveReplies.invalidateData()
+        }
     }
 
     fun addBoost(note: Note) {
-        if (boosts.add(note))
-            invalidateData(liveBoosts)
+        if (note !in boosts) {
+            boosts = boosts + note
+            liveBoosts.invalidateData()
+        }
     }
 
     fun addReaction(note: Note) {
-        if (reactions.add(note))
-            invalidateData(liveReactions)
+        if (note !in reactions) {
+            reactions = reactions + note
+            liveReactions.invalidateData()
+        }
     }
 
     fun addReport(note: Note) {
-        if (reports.add(note))
-            invalidateData(liveReports)
+        if (note !in reports) {
+            reports = reports + note
+            liveReports.invalidateData()
+        }
+    }
+
+    fun addRelay(relay: Relay) {
+        if (relay.url !in relays) {
+            relays = relays + relay.url
+            liveRelays.invalidateData()
+        }
     }
 
     fun isReactedBy(user: User): Boolean {
-        return synchronized(reactions) {
-            reactions.any { it.author == user }
-        }
+        return reactions.any { it.author == user }
     }
 
     fun isBoostedBy(user: User): Boolean {
-        return synchronized(boosts) {
-            boosts.any { it.author == user }
+        return boosts.any { it.author == user }
+    }
+
+    fun reportsBy(user: User): List<Note> {
+        return reports.filter { it.author == user }
+    }
+
+    fun reportsBy(users: Set<User>): List<Note> {
+        return reports.filter { it.author in users }
+    }
+
+    fun hasAnyReports(): Boolean {
+        val dayAgo = Date().time / 1000 - 24*60*60
+        return author?.reports?.filter { it.event?.createdAt ?: 0 > dayAgo }?.isNotEmpty() ?: false
+            || reports.isNotEmpty()
+    }
+
+    fun directlyCiteUsers(): Set<User> {
+        val matcher = tagSearch.matcher(event?.content ?: "")
+        val returningList = mutableSetOf<User>()
+        while (matcher.find()) {
+            try {
+                val tag = matcher.group(1)?.let { event?.tags?.get(it.toInt()) }
+                if (tag != null && tag[0] == "p") {
+                    returningList.add(LocalCache.getOrCreateUser(tag[1]))
+                }
+            } catch (e: Exception) {
+
+            }
         }
+        return returningList
+    }
+
+    fun directlyCites(userProfile: User): Boolean {
+        return author == userProfile
+          || (userProfile in directlyCiteUsers())
+          || (event is ReactionEvent && replyTo?.lastOrNull()?.directlyCites(userProfile) == true)
+          || (event is RepostEvent && replyTo?.lastOrNull()?.directlyCites(userProfile) == true)
+    }
+
+    fun isNewThread(): Boolean {
+        return event is RepostEvent || replyTo == null || replyTo?.size == 0
+    }
+
+    fun hasReacted(loggedIn: User, content: String): Boolean {
+        return reactions.firstOrNull { it.author == loggedIn && it.event?.content == content } != null
+    }
+
+    fun hasBoosted(loggedIn: User): Boolean {
+        val currentTime = Date().time / 1000
+        return boosts.firstOrNull { it.author == loggedIn && (it.event?.createdAt ?: 0) > currentTime - (60 * 5)} != null // 5 minute protection
     }
 
     // Observers line up here.
@@ -115,24 +190,27 @@ class Note(val idHex: String) {
     val liveBoosts: NoteLiveData = NoteLiveData(this)
     val liveReplies: NoteLiveData = NoteLiveData(this)
     val liveReports: NoteLiveData = NoteLiveData(this)
-
-    // Refreshes observers in batches.
-    var handlerWaiting = false
-    @Synchronized
-    fun invalidateData(live: NoteLiveData) {
-        if (handlerWaiting) return
-
-        handlerWaiting = true
-        val scope = CoroutineScope(Job() + Dispatchers.Default)
-        scope.launch {
-            delay(100)
-            live.refresh()
-            handlerWaiting = false
-        }
-    }
+    val liveRelays: NoteLiveData = NoteLiveData(this)
 }
 
 class NoteLiveData(val note: Note): LiveData<NoteState>(NoteState(note)) {
+    // Refreshes observers in batches.
+    var handlerWaiting = AtomicBoolean()
+
+    @Synchronized
+    fun invalidateData() {
+        if (!hasActiveObservers()) return
+        if (handlerWaiting.getAndSet(true)) return
+
+        handlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Main)
+        scope.launch {
+            delay(100)
+            refresh()
+            handlerWaiting.set(false)
+        }
+    }
+
     fun refresh() {
         postValue(NoteState(note))
     }

app/src/main/java/com/vitorpamplona/amethyst/model/RelaySetupInfo.kt

@@ -0,0 +1,13 @@
+package com.vitorpamplona.amethyst.model
+
+import com.vitorpamplona.amethyst.service.relays.FeedType
+
+data class RelaySetupInfo(
+    val url: String,
+    val read: Boolean,
+    val write: Boolean,
+    val errorCount: Int = 0,
+    val downloadCount: Int = 0,
+    val uploadCount: Int = 0,
+    val feedTypes: Set<FeedType>
+)

app/src/main/java/com/vitorpamplona/amethyst/model/UrlCachedPreviewer.kt

@@ -14,8 +14,10 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
 
 object UrlCachedPreviewer {
-  val cache = ConcurrentHashMap<String, UrlInfoItem>()
-  val failures = ConcurrentHashMap<String, Throwable>()
+  var cache = mapOf<String, UrlInfoItem>()
+    private set
+  var failures = mapOf<String, Throwable>()
+    private set
 
   fun previewInfo(url: String, callback: IUrlPreviewCallback? = null) {
     cache[url]?.let {
@@ -32,12 +34,12 @@ object UrlCachedPreviewer {
     scope.launch {
       BahaUrlPreview(url, object : IUrlPreviewCallback {
         override fun onComplete(urlInfo: UrlInfoItem) {
-          cache.put(url, urlInfo)
+          cache = cache + Pair(url, urlInfo)
           callback?.onComplete(urlInfo)
         }
 
         override fun onFailed(throwable: Throwable) {
-          failures.put(url, throwable)
+          failures = failures + Pair(url, throwable)
           callback?.onFailed(throwable)
         }
       }).fetchUrlPreview()

app/src/main/java/com/vitorpamplona/amethyst/model/User.kt

@@ -2,11 +2,17 @@ package com.vitorpamplona.amethyst.model
 
 import androidx.lifecycle.LiveData
 import com.vitorpamplona.amethyst.service.NostrSingleUserDataSource
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.relays.Client
+import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.Relay
 import com.vitorpamplona.amethyst.ui.note.toShortenHex
+import fr.acinq.secp256k1.Hex
 import java.util.Collections
 import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.atomic.AtomicBoolean
+import kotlin.time.ExperimentalTime
+import kotlin.time.measureTimedValue
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -15,10 +21,11 @@ import kotlinx.coroutines.launch
 import nostr.postr.events.ContactListEvent
 import nostr.postr.events.Event
 import nostr.postr.events.MetadataEvent
+import nostr.postr.toNpub
 
-class User(val pubkey: ByteArray) {
-    val pubkeyHex = pubkey.toHexKey()
-    val pubkeyDisplayHex = pubkey.toShortenHex()
+class User(val pubkeyHex: String) {
+    val pubkey = Hex.decode(pubkeyHex)
+    val pubkeyDisplayHex = pubkey.toNpub().toShortenHex()
 
     var info = UserMetadata()
 
@@ -28,15 +35,30 @@ class User(val pubkey: ByteArray) {
     var latestContactList: ContactListEvent? = null
     var latestMetadata: MetadataEvent? = null
 
-    val notes = Collections.synchronizedSet(mutableSetOf<Note>())
-    val follows = Collections.synchronizedSet(mutableSetOf<User>())
+    var follows = setOf<User>()
+        private set
+    var followers = setOf<User>()
+        private set
 
-    val taggedPosts = Collections.synchronizedSet(mutableSetOf<Note>())
+    var notes = setOf<Note>()
+        private set
+    var taggedPosts = setOf<Note>()
+        private set
+
+    var reports = setOf<Note>()
+        private set
 
     var relays: Map<String, ContactListEvent.ReadWrite>? = null
+        private set
 
-    val followers = Collections.synchronizedSet(mutableSetOf<User>())
-    val messages = ConcurrentHashMap<User, MutableSet<Note>>()
+    var relaysBeingUsed = mapOf<String, RelayInfo>()
+        private set
+
+    var messages = mapOf<User, Set<Note>>()
+        private set
+
+    var latestMetadataRequestEOSE: Long? = null
+    var latestReportRequestEOSE: Long? = null
 
     fun toBestDisplayName(): String {
         return bestDisplayName() ?: bestUsername() ?: pubkeyDisplayHex
@@ -56,65 +78,146 @@ class User(val pubkey: ByteArray) {
     }
 
     fun follow(user: User, followedAt: Long) {
-        follows.add(user)
-        user.followers.add(this)
+        follows = follows + user
+        user.followers = user.followers + this
 
-        invalidateData()
-        user.invalidateData()
+        liveFollows.invalidateData()
+        user.liveFollows.invalidateData()
 
-        listeners.forEach {
+        updateSubscribers {
+            it.onFollowsChange()
+        }
+
+        user.updateSubscribers {
             it.onFollowsChange()
         }
     }
     fun unfollow(user: User) {
-        follows.remove(user)
-        user.followers.remove(this)
+        follows = follows - user
+        user.followers = user.followers - this
 
-        invalidateData()
-        user.invalidateData()
+        liveFollows.invalidateData()
+        user.liveFollows.invalidateData()
 
         updateSubscribers {
             it.onFollowsChange()
         }
+
+        user.updateSubscribers {
+            it.onFollowsChange()
+        }
+    }
+
+    fun follow(users: Set<User>, followedAt: Long) {
+        follows = follows + users
+        users.forEach {
+            it.followers = it.followers + this
+            it.liveFollows.invalidateData()
+            it.updateSubscribers {
+                it.onFollowsChange()
+            }
+        }
+
+        liveFollows.invalidateData()
+        updateSubscribers {
+            it.onFollowsChange()
+        }
+    }
+    fun unfollow(users: Set<User>) {
+        follows = follows - users
+        users.forEach {
+            it.followers = it.followers - this
+            it.liveFollows.invalidateData()
+            it.updateSubscribers {
+                it.onFollowsChange()
+            }
+        }
+        liveFollows.invalidateData()
+        updateSubscribers {
+            it.onFollowsChange()
+        }
     }
 
     fun addTaggedPost(note: Note) {
-        taggedPosts.add(note)
-        updateSubscribers { it.onNewPosts() }
+        if (note !in taggedPosts) {
+            taggedPosts = taggedPosts + note
+            updateSubscribers { it.onNewTaggedPosts() }
+        }
+    }
+
+    fun addNote(note: Note) {
+        if (note !in notes) {
+            notes = notes + note
+            updateSubscribers { it.onNewNotes() }
+        }
+    }
+
+    fun addReport(note: Note) {
+        if (note !in reports) {
+            reports = reports + note
+            liveReports.invalidateData()
+        }
+    }
+
+    fun reportsBy(user: User): List<Note> {
+        return reports.filter { it.author == user }
+    }
+
+    fun reportsBy(users: Set<User>): List<Note> {
+        return reports.filter { it.author in users }
     }
 
     @Synchronized
-    fun getOrCreateChannel(user: User): MutableSet<Note> {
+    fun getOrCreateChannel(user: User): Set<Note> {
         return messages[user] ?: run {
-            val channel = Collections.synchronizedSet(mutableSetOf<Note>())
-            messages[user] = channel
+            val channel = setOf<Note>()
+            messages = messages + Pair(user, channel)
             channel
         }
     }
 
     fun addMessage(user: User, msg: Note) {
-        getOrCreateChannel(user).add(msg)
-        live.refresh()
-        updateSubscribers { it.onNewMessage() }
+        val channel = getOrCreateChannel(user)
+        if (msg !in channel) {
+            messages = messages + Pair(user, channel + msg)
+            liveMessages.invalidateData()
+            updateSubscribers { it.onNewMessage() }
+        }
     }
 
+    data class RelayInfo (
+        val url: String,
+        var lastEvent: Long,
+        var counter: Long
+    )
+
+    fun addRelay(relay: Relay, eventTime: Long) {
+        val here = relaysBeingUsed[relay.url]
+        if (here == null) {
+            relaysBeingUsed = relaysBeingUsed + Pair(relay.url, RelayInfo(relay.url, eventTime, 1))
+        } else {
+            if (eventTime > here.lastEvent) {
+                here.lastEvent = eventTime
+            }
+            here.counter++
+        }
+
+        updateSubscribers { it.onNewRelayInfo() }
+        liveRelayInfo.invalidateData()
+    }
+    
     fun updateFollows(newFollows: Set<User>, updateAt: Long) {
-        val toBeAdded = synchronized(follows) {
-            newFollows - follows
-        }
-        val toBeRemoved = synchronized(follows) {
-            follows - newFollows
-        }
-        toBeAdded.forEach {
-            follow(it, updateAt)
-        }
-        toBeRemoved.forEach {
-            unfollow(it)
-        }
+        val toBeAdded = newFollows - follows
+        val toBeRemoved = follows - newFollows
+
+        follow(toBeAdded, updateAt)
+        unfollow(toBeRemoved)
 
         updatedFollowsAt = updateAt
     }
 
+    data class RelayMetadata(val read: Boolean, val write: Boolean, val activeTypes: Set<FeedType>)
+
     fun updateRelays(relayUse: Map<String, ContactListEvent.ReadWrite>) {
         if (relays != relayUse) {
             relays = relayUse
@@ -122,35 +225,33 @@ class User(val pubkey: ByteArray) {
                 it.onRelayChange()
             }
         }
+
+        liveRelays.invalidateData()
     }
 
     fun updateUserInfo(newUserInfo: UserMetadata, updateAt: Long) {
         info = newUserInfo
         updatedMetadataAt = updateAt
 
-        if (info.picture?.startsWith( "http://") == true) {
-            info.picture = info.picture?.replaceFirst("http://", "https://")
-        }
-
-        if (info.banner?.startsWith( "http://") == true) {
-            info.banner = info.banner?.replaceFirst("http://", "https://")
-        }
-
-        invalidateData()
+        liveMetadata.invalidateData()
     }
 
     fun isFollowing(user: User): Boolean {
-        return synchronized(follows) {
-            follows.contains(user)
-        }
+        return follows.contains(user)
     }
 
     fun hasSentMessagesTo(user: User?): Boolean {
         val messagesToUser = messages[user] ?: return false
 
-        return synchronized(messagesToUser) {
-            messagesToUser.firstOrNull { this == it.author } != null
-        }
+        return messagesToUser.firstOrNull { this == it.author } != null
+    }
+
+    fun hasReport(loggedIn: User, type: ReportEvent.ReportType): Boolean {
+        return reports.firstOrNull {
+            it.author == loggedIn
+              && it.event is ReportEvent
+              && (it.event as ReportEvent).reportType.contains(type)
+        } != null
     }
 
     // Model Observers
@@ -167,44 +268,38 @@ class User(val pubkey: ByteArray) {
     abstract class Listener {
         open fun onRelayChange() = Unit
         open fun onFollowsChange() = Unit
-        open fun onNewPosts() = Unit
+        open fun onNewTaggedPosts() = Unit
+        open fun onNewNotes() = Unit
         open fun onNewMessage() = Unit
+        open fun onNewRelayInfo() = Unit
+        open fun onNewReports() = Unit
     }
 
     // Refreshes observers in batches.
-    var modelHandlerWaiting = false
+    var modelHandlerWaiting = AtomicBoolean()
+
     @Synchronized
     fun updateSubscribers(on: (Listener) -> Unit) {
-        if (modelHandlerWaiting) return
+        if (modelHandlerWaiting.getAndSet(true)) return
 
-        modelHandlerWaiting = true
-        val scope = CoroutineScope(Job() + Dispatchers.Main)
+        modelHandlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Default)
         scope.launch {
             delay(100)
             listeners.forEach {
                 on(it)
             }
-            modelHandlerWaiting = false
+            modelHandlerWaiting.set(false)
         }
     }
 
     // UI Observers line up here.
-    val live: UserLiveData = UserLiveData(this)
-
-    // Refreshes observers in batches.
-    var handlerWaiting = false
-    @Synchronized
-    fun invalidateData() {
-        if (handlerWaiting) return
-
-        handlerWaiting = true
-        val scope = CoroutineScope(Job() + Dispatchers.Default)
-        scope.launch {
-            delay(100)
-            live.refresh()
-            handlerWaiting = false
-        }
-    }
+    val liveFollows: UserLiveData = UserLiveData(this)
+    val liveReports: UserLiveData = UserLiveData(this)
+    val liveMessages: UserLiveData = UserLiveData(this)
+    val liveRelays: UserLiveData = UserLiveData(this)
+    val liveRelayInfo: UserLiveData = UserLiveData(this)
+    val liveMetadata: UserLiveData = UserLiveData(this)
 }
 
 class UserMetadata {
@@ -233,7 +328,25 @@ class UserMetadata {
 }
 
 class UserLiveData(val user: User): LiveData<UserState>(UserState(user)) {
-    fun refresh() {
+
+    // Refreshes observers in batches.
+    var handlerWaiting = AtomicBoolean()
+
+    @Synchronized
+    fun invalidateData() {
+        if (!hasActiveObservers()) return
+        if (handlerWaiting.getAndSet(true)) return
+
+        handlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Main)
+        scope.launch {
+            delay(100)
+            refresh()
+            handlerWaiting.set(false)
+        }
+    }
+
+    private fun refresh() {
         postValue(UserState(user))
     }
 

app/src/main/java/com/vitorpamplona/amethyst/service/Channel.kt

@@ -1,10 +0,0 @@
-package com.vitorpamplona.amethyst.service
-
-import java.util.UUID
-import nostr.postr.JsonFilter
-
-data class Channel (
-  val id: String = UUID.randomUUID().toString().substring(0,4)
-) {
-  var filter: List<JsonFilter>? = null // Inactive when null
-}

app/src/main/java/com/vitorpamplona/amethyst/service/Constants.kt

@@ -1,25 +0,0 @@
-package com.vitorpamplona.amethyst.service
-
-import com.vitorpamplona.amethyst.service.relays.Relay
-
-object Constants {
-    val defaultRelays = arrayOf(
-      Relay("wss://nostr.bitcoiner.social", read = true, write = true),
-      Relay("wss://relay.nostr.bg", read = true, write = true),
-      //Relay("wss://brb.io", read = true, write = true),
-      Relay("wss://relay.snort.social", read = true, write = true),
-      Relay("wss://nostr.rocks", read = true, write = true),
-      Relay("wss://relay.damus.io", read = true, write = true),
-      Relay("wss://nostr.fmt.wiz.biz", read = true, write = true),
-      Relay("wss://nostr.oxtr.dev", read = true, write = true),
-      Relay("wss://eden.nostr.land", read = true, write = true),
-      //Relay("wss://nostr-2.zebedee.cloud", read = true, write = true),
-      Relay("wss://nostr-pub.wellorder.net", read = true, write = true),
-      Relay("wss://nostr.mom", read = true, write = true),
-      Relay("wss://nostr.orangepill.dev", read = true, write = true),
-      Relay("wss://nostr-pub.semisol.dev", read = true, write = true),
-      Relay("wss://nostr.onsats.org", read = true, write = true),
-      Relay("wss://nostr.sandwich.farm", read = true, write = true),
-      Relay("wss://relay.nostr.ch", read = true, write = true)
-    )
-}

app/src/main/java/com/vitorpamplona/amethyst/service/Nip19.kt

@@ -36,13 +36,14 @@ class Nip19 {
         }
       }
     } catch (e: Throwable) {
+      println("Trying to Decode NIP19: ${uri}")
       e.printStackTrace()
     }
 
     return null
   }
 
-  fun parseTLV(data: ByteArray): Map<Byte, MutableList<ByteArray>> {
+  fun parseTLV(data: ByteArray): Map<Byte, List<ByteArray>> {
     var result = mutableMapOf<Byte, MutableList<ByteArray>>()
     var rest = data
     while (rest.isNotEmpty()) {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrAccountDataSource.kt

@@ -3,8 +3,10 @@ package com.vitorpamplona.amethyst.service
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
-import com.vitorpamplona.amethyst.model.UserState
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.ContactListEvent
 import nostr.postr.events.MetadataEvent
@@ -13,46 +15,64 @@ import nostr.postr.events.TextNoteEvent
 object NostrAccountDataSource: NostrDataSource<Note>("AccountData") {
   lateinit var account: Account
 
-  fun createAccountContactListFilter(): JsonFilter {
-    return JsonFilter(
-      kinds = listOf(ContactListEvent.kind),
-      authors = listOf(account.userProfile().pubkeyHex),
-      limit = 5
+  fun createAccountContactListFilter(): TypedFilter {
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(ContactListEvent.kind),
+        authors = listOf(account.userProfile().pubkeyHex),
+        limit = 1
+      )
     )
   }
 
-  fun createAccountMetadataFilter(): JsonFilter {
-    return JsonFilter(
-      kinds = listOf(MetadataEvent.kind),
-      authors = listOf(account.userProfile().pubkeyHex),
-      limit = 5
+  fun createAccountMetadataFilter(): TypedFilter {
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(MetadataEvent.kind),
+        authors = listOf(account.userProfile().pubkeyHex),
+        limit = 1
+      )
     )
   }
 
-  val accountMetadataChannel = requestNewChannel()
-  val accountContactListChannel = requestNewChannel()
+  fun createAccountReportsFilter(): TypedFilter {
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(ReportEvent.kind),
+        authors = listOf(account.userProfile().pubkeyHex)
+      )
+    )
+  }
+
+  fun createNotificationFilter() = TypedFilter(
+    types = FeedType.values().toSet(),
+    filter = JsonFilter(
+      tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
+      limit = 200
+    )
+  )
+
+  val accountChannel = requestNewChannel()
 
   override fun feed(): List<Note> {
     val user = account.userProfile()
 
-    val follows = user.follows
-    val followKeys = synchronized(follows) {
-      follows.map { it.pubkeyHex }
-    }
-    val allowSet = followKeys.plus(user.pubkeyHex).toSet()
-
     return LocalCache.notes.values
-      .filter { (it.event is TextNoteEvent || it.event is RepostEvent) && it.author?.pubkeyHex in allowSet }
+      .filter { (it.event is TextNoteEvent || it.event is RepostEvent) && it.author in user.follows }
       .sortedBy { it.event?.createdAt }
       .reversed()
   }
 
   override fun updateChannelFilters() {
     // gets everthing about the user logged in
-    val newAccountMetadataFilter = createAccountMetadataFilter()
-    accountMetadataChannel.filter = listOf(newAccountMetadataFilter).ifEmpty { null }
-
-    val newAccountContactListEvent = createAccountContactListFilter()
-    accountContactListChannel.filter = listOf(newAccountContactListEvent).ifEmpty { null }
+    accountChannel.typedFilters = listOf(
+      createAccountMetadataFilter(),
+      createAccountContactListFilter(),
+      createNotificationFilter(),
+      createAccountReportsFilter()
+    ).ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChannelDataSource.kt

@@ -4,6 +4,8 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 
 object NostrChannelDataSource: NostrDataSource<Note>("ChatroomFeed") {
@@ -11,16 +13,19 @@ object NostrChannelDataSource: NostrDataSource<Note>("ChatroomFeed") {
   var channel: com.vitorpamplona.amethyst.model.Channel? = null
 
   fun loadMessagesBetween(channelId: String) {
-    channel = LocalCache.channels[channelId]
+    channel = LocalCache.getOrCreateChannel(channelId)
     resetFilters()
   }
 
-  fun createMessagesToChannelFilter(): JsonFilter? {
+  fun createMessagesToChannelFilter(): TypedFilter? {
     if (channel != null) {
-      return JsonFilter(
-        kinds = listOf(ChannelMessageEvent.kind),
-        tags = mapOf("e" to listOfNotNull(channel?.idHex)),
-        since = System.currentTimeMillis() / 1000 - (60 * 60 * 24 * 1), // 24 hours
+      return TypedFilter(
+        types = setOf(FeedType.PUBLIC_CHATS),
+        filter = JsonFilter(
+          kinds = listOf(ChannelMessageEvent.kind),
+          tags = mapOf("e" to listOfNotNull(channel?.idHex)),
+          limit = 200
+        )
       )
     }
     return null
@@ -34,6 +39,6 @@ object NostrChannelDataSource: NostrDataSource<Note>("ChatroomFeed") {
   }
 
   override fun updateChannelFilters() {
-    messagesChannel.filter = listOfNotNull(createMessagesToChannelFilter()).ifEmpty { null }
+    messagesChannel.typedFilters = listOfNotNull(createMessagesToChannelFilter()).ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChatRoomDataSource.kt

@@ -4,6 +4,8 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.PrivateDmEvent
 
@@ -16,34 +18,50 @@ object NostrChatRoomDataSource: NostrDataSource<Note>("ChatroomFeed") {
     withUser = LocalCache.users[userId]
   }
 
-  fun createMessagesToMeFilter() = JsonFilter(
-    kinds = listOf(PrivateDmEvent.kind),
-    authors = withUser?.let { listOf(it.pubkeyHex) },
-    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex))
-  )
+  fun createMessagesToMeFilter(): TypedFilter? {
+    val myPeer = withUser
+    
+    return if (myPeer != null) {
+      TypedFilter(
+        types = setOf(FeedType.PRIVATE_DMS),
+        filter = JsonFilter(
+          kinds = listOf(PrivateDmEvent.kind),
+          authors = listOf(myPeer.pubkeyHex) ,
+          tags = mapOf("p" to listOf(account.userProfile().pubkeyHex))
+        )
+      )
+    } else {
+      null
+    }
+  }
 
-  fun createMessagesFromMeFilter() = JsonFilter(
-    kinds = listOf(PrivateDmEvent.kind),
-    authors = listOf(account.userProfile().pubkeyHex),
-    tags = withUser?.let { mapOf("p" to listOf(it.pubkeyHex)) }
-  )
+  fun createMessagesFromMeFilter(): TypedFilter? {
+    val myPeer = withUser
+    
+    return if (myPeer != null) {
+      TypedFilter(
+        types = setOf(FeedType.PUBLIC_CHATS),
+        filter = JsonFilter(
+          kinds = listOf(PrivateDmEvent.kind),
+          authors = listOf(account.userProfile().pubkeyHex),
+          tags = mapOf("p" to listOf(myPeer.pubkeyHex))
+        )
+      )
+    } else {
+      null
+    }
+  }
 
-  val incomingChannel = requestNewChannel()
-  val outgoingChannel = requestNewChannel()
+  val inandoutChannel = requestNewChannel()
 
   // returns the last Note of each user.
   override fun feed(): List<Note> {
     val messages = account.userProfile().messages[withUser] ?: return emptyList()
 
-    val filteredMessages = synchronized(messages) {
-      messages.filter { account.isAcceptable(it) }
-    }
-
-    return filteredMessages.sortedBy { it.event?.createdAt }.reversed()
+    return messages.filter { account.isAcceptable(it) }.sortedBy { it.event?.createdAt }.reversed()
   }
 
   override fun updateChannelFilters() {
-    incomingChannel.filter = listOf(createMessagesToMeFilter()).ifEmpty { null }
-    outgoingChannel.filter = listOf(createMessagesFromMeFilter()).ifEmpty { null }
+    inandoutChannel.typedFilters = listOfNotNull(createMessagesToMeFilter(), createMessagesFromMeFilter()).ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrChatroomListDataSource.kt

@@ -1,80 +1,85 @@
 package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.PrivateDmEvent
 
 object NostrChatroomListDataSource: NostrDataSource<Note>("MailBoxFeed") {
   lateinit var account: Account
 
-  fun createMessagesToMeFilter() = JsonFilter(
-    kinds = listOf(PrivateDmEvent.kind),
-    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex))
+  fun createMessagesToMeFilter() = TypedFilter(
+    types = setOf(FeedType.PRIVATE_DMS),
+      filter = JsonFilter(
+      kinds = listOf(PrivateDmEvent.kind),
+      tags = mapOf("p" to listOf(account.userProfile().pubkeyHex))
+    )
   )
 
-  fun createMessagesFromMeFilter() = JsonFilter(
-    kinds = listOf(PrivateDmEvent.kind),
-    authors = listOf(account.userProfile().pubkeyHex)
+  fun createMessagesFromMeFilter() = TypedFilter(
+    types = setOf(FeedType.PRIVATE_DMS),
+      filter = JsonFilter(
+      kinds = listOf(PrivateDmEvent.kind),
+      authors = listOf(account.userProfile().pubkeyHex)
+    )
   )
 
-  fun createChannelsCreatedbyMeFilter() = JsonFilter(
-    kinds = listOf(ChannelCreateEvent.kind, ChannelMetadataEvent.kind),
-    authors = listOf(account.userProfile().pubkeyHex)
+  fun createChannelsCreatedbyMeFilter() = TypedFilter(
+    types = setOf(FeedType.PUBLIC_CHATS),
+      filter = JsonFilter(
+      kinds = listOf(ChannelCreateEvent.kind, ChannelMetadataEvent.kind),
+      authors = listOf(account.userProfile().pubkeyHex)
+    )
   )
 
-  fun createMyChannelsFilter() = JsonFilter(
-    kinds = listOf(ChannelCreateEvent.kind),
-    ids = account.followingChannels.toList()
+  fun createMyChannelsFilter() = TypedFilter(
+    types = setOf(FeedType.PUBLIC_CHATS),
+      filter = JsonFilter(
+      kinds = listOf(ChannelCreateEvent.kind),
+      ids = account.followingChannels.toList()
+    )
   )
 
-  fun createLastChannelInfoFilter(): List<JsonFilter> {
+  fun createLastChannelInfoFilter(): List<TypedFilter> {
     return account.followingChannels.map {
-      JsonFilter(
-        kinds = listOf(ChannelMetadataEvent.kind),
-        tags = mapOf("e" to listOf(it)),
-        limit = 1
+      TypedFilter(
+        types = setOf(FeedType.PUBLIC_CHATS),
+        filter = JsonFilter(
+          kinds = listOf(ChannelMetadataEvent.kind),
+          tags = mapOf("e" to listOf(it)),
+          limit = 1
+        )
       )
     }
   }
 
-  fun createLastMessageOfEachChannelFilter(): List<JsonFilter> {
+  fun createLastMessageOfEachChannelFilter(): List<TypedFilter> {
     return account.followingChannels.map {
-      JsonFilter(
-        kinds = listOf(ChannelMessageEvent.kind),
-        tags = mapOf("e" to listOf(it)),
-        limit = 1
+      TypedFilter(
+        types = setOf(FeedType.PUBLIC_CHATS),
+        filter = JsonFilter(
+          kinds = listOf(ChannelMessageEvent.kind),
+          tags = mapOf("e" to listOf(it)),
+          limit = 1
+        )
       )
     }
   }
 
-  val incomingChannel = requestNewChannel()
-  val outgoingChannel = requestNewChannel()
-
-  val myChannelsChannel = requestNewChannel()
-  val myChannelsInfoChannel = requestNewChannel()
-  val myChannelsMessagesChannel = requestNewChannel()
-
-  val myChannelsCreatedbyMeChannel = requestNewChannel()
+  val chatroomListChannel = requestNewChannel()
 
   // returns the last Note of each user.
   override fun feed(): List<Note> {
     val messages = account.userProfile().messages
-    val messagingWith = messages.keys().toList().filter { account.isAcceptable(it) }
+    val messagingWith = messages.keys.filter { account.isAcceptable(it) }
 
     val privateMessages = messagingWith.mapNotNull {
-      val conversation = messages[it]
-      if (conversation != null) {
-        synchronized(conversation) {
-          conversation.sortedBy { it.event?.createdAt }.lastOrNull { it.event != null }
-        }
-      } else {
-        null
-      }
+      messages[it]?.sortedBy { it.event?.createdAt }?.lastOrNull { it.event != null }
     }
 
     val publicChannels = account.followingChannels().map {
@@ -85,12 +90,16 @@ object NostrChatroomListDataSource: NostrDataSource<Note>("MailBoxFeed") {
   }
 
   override fun updateChannelFilters() {
-    incomingChannel.filter = listOf(createMessagesToMeFilter()).ifEmpty { null }
-    outgoingChannel.filter = listOf(createMessagesFromMeFilter()).ifEmpty { null }
-    myChannelsChannel.filter = listOf(createMyChannelsFilter()).ifEmpty { null }
-    myChannelsInfoChannel.filter = createLastChannelInfoFilter().ifEmpty { null }
-    myChannelsMessagesChannel.filter = createLastMessageOfEachChannelFilter().ifEmpty { null }
+    val list = listOf(
+      createMessagesToMeFilter(),
+      createMessagesFromMeFilter(),
+      createMyChannelsFilter()
+    )
 
-    //myChannelsCreatedbyMeChannel.filter = listOf(createChannelsCreatedbyMeFilter()).ifEmpty { null }
+    chatroomListChannel.typedFilters = listOfNotNull(
+      list,
+      createLastChannelInfoFilter(),
+      createLastMessageOfEachChannelFilter()
+    ).flatten().ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrDataSource.kt

@@ -1,7 +1,5 @@
 package com.vitorpamplona.amethyst.service
 
-import android.os.Handler
-import android.os.Looper
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.UrlCachedPreviewer
@@ -11,13 +9,13 @@ import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMuteUserEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
 import com.vitorpamplona.amethyst.service.relays.Client
 import com.vitorpamplona.amethyst.service.relays.Relay
-import java.util.Collections
+import com.vitorpamplona.amethyst.service.relays.Subscription
+import java.util.Date
 import java.util.UUID
-import kotlin.time.ExperimentalTime
-import kotlin.time.measureTimedValue
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -32,10 +30,8 @@ import nostr.postr.events.RecommendRelayEvent
 import nostr.postr.events.TextNoteEvent
 
 abstract class NostrDataSource<T>(val debugName: String) {
-  private val channels = Collections.synchronizedSet(mutableSetOf<Channel>())
-  private val channelIds =  Collections.synchronizedSet(mutableSetOf<String>())
-
-  private val eventCounter = mutableMapOf<String, Int>()
+  private var subscriptions = mapOf<String, Subscription>()
+  private var eventCounter = mapOf<String, Int>()
 
   fun printCounter() {
     eventCounter.forEach {
@@ -45,31 +41,36 @@ abstract class NostrDataSource<T>(val debugName: String) {
 
   private val clientListener = object : Client.Listener() {
     override fun onEvent(event: Event, subscriptionId: String, relay: Relay) {
-      if (subscriptionId in channelIds) {
+      if (subscriptionId in subscriptions.keys) {
         val key = "${debugName} ${subscriptionId} ${event.kind}"
-        if (eventCounter.contains(key)) {
-          eventCounter.put(key, eventCounter.get(key)!! + 1)
+        val keyValue = eventCounter.get(key)
+        if (keyValue != null) {
+          eventCounter = eventCounter + Pair(key, keyValue + 1)
         } else {
-          eventCounter.put(key, 1)
+          eventCounter = eventCounter + Pair(key, 1)
         }
 
         try {
           when (event) {
             is MetadataEvent -> LocalCache.consume(event)
-            is TextNoteEvent -> LocalCache.consume(event)
+            is TextNoteEvent -> LocalCache.consume(event, relay)
             is RecommendRelayEvent -> LocalCache.consume(event)
             is ContactListEvent -> LocalCache.consume(event)
-            is PrivateDmEvent -> LocalCache.consume(event)
+            is PrivateDmEvent -> LocalCache.consume(event, relay)
             is DeletionEvent -> LocalCache.consume(event)
-            is RepostEvent -> LocalCache.consume(event)
-            is ReactionEvent -> LocalCache.consume(event)
             else -> when (event.kind) {
-              RepostEvent.kind -> LocalCache.consume(RepostEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
+              RepostEvent.kind -> {
+                val repostEvent = RepostEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig)
+
+                repostEvent.containedPost?.let { onEvent(it, subscriptionId, relay) }
+                LocalCache.consume(repostEvent)
+              }
               ReactionEvent.kind -> LocalCache.consume(ReactionEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
+              ReportEvent.kind -> LocalCache.consume(ReportEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
 
               ChannelCreateEvent.kind -> LocalCache.consume(ChannelCreateEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
               ChannelMetadataEvent.kind -> LocalCache.consume(ChannelMetadataEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
-              ChannelMessageEvent.kind -> LocalCache.consume(ChannelMessageEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
+              ChannelMessageEvent.kind -> LocalCache.consume(ChannelMessageEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig), relay)
               ChannelHideMessageEvent.kind -> LocalCache.consume(ChannelHideMessageEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
               ChannelMuteUserEvent.kind -> LocalCache.consume(ChannelMuteUserEvent(event.id, event.pubKey, event.createdAt, event.tags, event.content, event.sig))
             }
@@ -85,7 +86,7 @@ abstract class NostrDataSource<T>(val debugName: String) {
       //Log.e("ERROR", "Relay ${relay.url}: ${error.message}")
     }
 
-    override fun onRelayStateChange(type: Relay.Type, relay: Relay) {
+    override fun onRelayStateChange(type: Relay.Type, relay: Relay, channel: String?) {
       //Log.d("RELAY", "Relay ${relay.url} ${when (type) {
       //  Relay.Type.CONNECT -> "connected."
       //  Relay.Type.DISCONNECT -> "disconnected."
@@ -93,11 +94,10 @@ abstract class NostrDataSource<T>(val debugName: String) {
       //  Relay.Type.EOSE -> "sent all events it had stored."
       //}}")
 
-      /*
-      if (type == Relay.Type.EOSE) {
-        // One everything is loaded, if new users are found, update filters
-        resetFilters()
-      }*/
+      if (type == Relay.Type.EOSE && channel != null) {
+        // updates a per subscripton since date
+        subscriptions[channel]?.updateEOSE(Date().time / 1000)
+      }
     }
 
     override fun onSendResponse(eventId: String, success: Boolean, message: String, relay: Relay) {
@@ -114,8 +114,8 @@ abstract class NostrDataSource<T>(val debugName: String) {
   }
 
   open fun stop() {
-    channels.forEach { channel ->
-      if (channel.filter != null) // if it is active, close
+    subscriptions.values.forEach { channel ->
+      if (channel.typedFilters != null) // if it is active, close
         Client.close(channel.id)
     }
   }
@@ -140,17 +140,15 @@ abstract class NostrDataSource<T>(val debugName: String) {
     }
   }
 
-  fun requestNewChannel(): Channel {
-    val newChannel = Channel(debugName+UUID.randomUUID().toString().substring(0,4))
-    channels.add(newChannel)
-    channelIds.add(newChannel.id)
-    return newChannel
+  fun requestNewChannel(onEOSE: ((Long) -> Unit)? = null): Subscription {
+    val newSubscription = Subscription(UUID.randomUUID().toString().substring(0,4), onEOSE)
+    subscriptions = subscriptions + Pair(newSubscription.id, newSubscription)
+    return newSubscription
   }
 
-  fun dismissChannel(channel: Channel) {
-    Client.close(channel.id)
-    channels.remove(channel)
-    channelIds.remove(channel.id)
+  fun dismissChannel(subscription: Subscription) {
+    Client.close(subscription.id)
+    subscriptions = subscriptions.minus(subscription.id)
   }
 
   var handlerWaiting = false
@@ -176,37 +174,37 @@ abstract class NostrDataSource<T>(val debugName: String) {
 
   fun resetFiltersSuspend() {
     // saves the channels that are currently active
-    val activeChannels = channels.filter { it.filter != null }
+    val activeSubscriptions = subscriptions.values.filter { it.typedFilters != null }
     // saves the current content to only update if it changes
-    val currentFilter = activeChannels.associate { it.id to it.filter!!.joinToString("|") { it.toJson() }  }
+    val currentFilters = activeSubscriptions.associate { it.id to it.toJson()  }
 
     updateChannelFilters()
 
     // Makes sure to only send an updated filter when it actually changes.
-    channels.forEach { channel ->
-      val channelsNewFilter = channel.filter
+    subscriptions.values.forEach { updatedSubscription ->
+      val updatedSubscriotionNewFilters = updatedSubscription.typedFilters
 
-      if (channel in activeChannels) {
-        if (channelsNewFilter == null) {
+      if (updatedSubscription.id in currentFilters.keys) {
+        if (updatedSubscriotionNewFilters == null) {
           // was active and is not active anymore, just close.
-          Client.close(channel.id)
+          Client.close(updatedSubscription.id)
         } else {
           // was active and is still active, check if it has changed.
-          if (channelsNewFilter.joinToString("|") { it.toJson() } != currentFilter[channel.id]) {
-            Client.close(channel.id)
-            Client.sendFilter(channel.id, channelsNewFilter)
+          if (updatedSubscription.toJson() != currentFilters[updatedSubscription.id]) {
+            Client.close(updatedSubscription.id)
+            Client.sendFilter(updatedSubscription.id, updatedSubscriotionNewFilters)
           } else {
             // hasn't changed, does nothing.
-            Client.sendFilterOnlyIfDisconnected(channel.id, channelsNewFilter)
+            Client.sendFilterOnlyIfDisconnected(updatedSubscription.id, updatedSubscriotionNewFilters)
           }
         }
       } else {
-        if (channelsNewFilter == null) {
+        if (updatedSubscriotionNewFilters == null) {
           // was not active and is still not active, does nothing
         } else {
           // was not active and becomes active, sends the filter.
-          if (channelsNewFilter.joinToString("|") { it.toJson() } != currentFilter[channel.id]) {
-            Client.sendFilter(channel.id, channelsNewFilter)
+          if (updatedSubscription.toJson() != currentFilters[updatedSubscription.id]) {
+            Client.sendFilter(updatedSubscription.id, updatedSubscriotionNewFilters)
           }
         }
       }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrGlobalDataSource.kt

@@ -4,14 +4,19 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.TextNoteEvent
 
 object NostrGlobalDataSource: NostrDataSource<Note>("GlobalFeed") {
   lateinit var account: Account
-  fun createGlobalFilter() = JsonFilter(
-    kinds = listOf(TextNoteEvent.kind, ChannelMessageEvent.kind),
-    limit = 200
+  fun createGlobalFilter() = TypedFilter(
+    types = setOf(FeedType.GLOBAL),
+    filter = JsonFilter(
+      kinds = listOf(TextNoteEvent.kind, ChannelMessageEvent.kind),
+      limit = 200
+    )
   )
 
   val globalFeedChannel = requestNewChannel()
@@ -26,6 +31,6 @@ object NostrGlobalDataSource: NostrDataSource<Note>("GlobalFeed") {
     .reversed()
 
   override fun updateChannelFilters() {
-    globalFeedChannel.filter = listOf(createGlobalFilter()).ifEmpty { null }
+    globalFeedChannel.typedFilters = listOf(createGlobalFilter()).ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrHomeDataSource.kt

@@ -4,11 +4,9 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
-import com.vitorpamplona.amethyst.model.UserState
 import com.vitorpamplona.amethyst.service.model.RepostEvent
-import com.vitorpamplona.amethyst.service.relays.Client
-import com.vitorpamplona.amethyst.service.relays.Relay
-import com.vitorpamplona.amethyst.service.relays.RelayPool
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.TextNoteEvent
 import nostr.postr.toHex
@@ -34,64 +32,38 @@ object NostrHomeDataSource: NostrDataSource<Note>("HomeFeed") {
       account.userProfile().unsubscribe(cacheListener)
   }
 
-  fun createFollowAccountsFilter(): JsonFilter {
-    val follows = account.userProfile().follows ?: emptySet()
+  fun createFollowAccountsFilter(): TypedFilter {
+    val follows = account.userProfile().follows
 
-    val followKeys = synchronized(follows) {
-      follows.map {
-        it.pubkey.toHex().substring(0, 6)
-      }
+    val followKeys = follows.map {
+      it.pubkey.toHex().substring(0, 6)
     }
 
     val followSet = followKeys.plus(account.userProfile().pubkeyHex.substring(0, 6))
 
-    return JsonFilter(
-      kinds = listOf(TextNoteEvent.kind, RepostEvent.kind),
-      authors = followSet,
-      limit = 200
+    return TypedFilter(
+      types = setOf(FeedType.FOLLOWS),
+      filter = JsonFilter(
+        kinds = listOf(TextNoteEvent.kind, RepostEvent.kind),
+        authors = followSet,
+        limit = 400
+      )
     )
   }
 
   val followAccountChannel = requestNewChannel()
 
-  fun <T> equalsIgnoreOrder(list1:List<T>?, list2:List<T>?): Boolean {
-    if (list1 == null && list2 == null) return true
-    if (list1 == null) return false
-    if (list2 == null) return false
-
-    return list1.size == list2.size && list1.toSet() == list2.toSet()
-  }
-
-  fun equalAuthors(list1:JsonFilter?, list2:JsonFilter?): Boolean {
-    if (list1 == null && list2 == null) return true
-    if (list1 == null) return false
-    if (list2 == null) return false
-
-    return equalsIgnoreOrder(list1.authors, list2.authors)
-  }
-
   override fun feed(): List<Note> {
     val user = account.userProfile()
 
-    val follows = user.follows
-    val followKeys = synchronized(follows) {
-      follows.map { it.pubkeyHex }
-    }
-
-    val allowSet = followKeys.plus(user.pubkeyHex).toSet()
-
     return LocalCache.notes.values
-      .filter { (it.event is TextNoteEvent || it.event is RepostEvent) && it.author?.pubkeyHex in allowSet }
+      .filter { (it.event is TextNoteEvent || it.event is RepostEvent) && it.author in user.follows }
       .filter { account.isAcceptable(it) }
       .sortedBy { it.event?.createdAt }
       .reversed()
   }
 
   override fun updateChannelFilters() {
-    val newFollowAccountsFilter = createFollowAccountsFilter()
-
-    if (!equalAuthors(newFollowAccountsFilter, followAccountChannel.filter?.firstOrNull())) {
-      followAccountChannel.filter = listOf(newFollowAccountsFilter).ifEmpty { null }
-    }
+    followAccountChannel.typedFilters = listOf(createFollowAccountsFilter()).ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrNotificationDataSource.kt

@@ -3,28 +3,26 @@ package com.vitorpamplona.amethyst.service
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
+import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
+import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
+import com.vitorpamplona.amethyst.service.model.RepostEvent
 import nostr.postr.JsonFilter
 
 object NostrNotificationDataSource: NostrDataSource<Note>("NotificationFeed") {
   lateinit var account: Account
 
-  fun createNotificationFilter() = JsonFilter(
-    tags = mapOf("p" to listOf(account.userProfile().pubkeyHex)),
-    limit = 100
-  )
-
-  val notificationChannel = requestNewChannel()
-
   override fun feed(): List<Note> {
-    val set = account.userProfile().taggedPosts
-    val filtered = synchronized(set) {
-      set.filter { it.event != null }.filter { account.isAcceptable(it) }
-    }
-
-    return filtered.sortedBy { it.event?.createdAt }.reversed()
+    return account.userProfile().taggedPosts
+      .filter { it.event != null }
+      .filter { account.isAcceptable(it) }
+      .filter {
+           it.event !is ChannelCreateEvent
+        && it.event !is ChannelMetadataEvent
+      }
+      .sortedBy { it.event?.createdAt }
+      .reversed()
   }
 
-  override fun updateChannelFilters() {
-    notificationChannel.filter = listOf(createNotificationFilter()).ifEmpty { null }
-  }
+  override fun updateChannelFilters() {}
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSearchEventOrUserDataSource.kt

@@ -1,31 +1,38 @@
 package com.vitorpamplona.amethyst.service
 
-import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.decodePublicKey
-import com.vitorpamplona.amethyst.service.model.ReactionEvent
-import com.vitorpamplona.amethyst.service.model.RepostEvent
-import java.util.Collections
+import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.bechToBytes
+import nostr.postr.events.MetadataEvent
 import nostr.postr.events.TextNoteEvent
 import nostr.postr.toHex
 
 object NostrSearchEventOrUserDataSource: NostrDataSource<Note>("SingleEventFeed") {
   private var hexToWatch: String? = null
 
-  private fun createAnythingWithIDFilter(): List<JsonFilter>? {
+  private fun createAnythingWithIDFilter(): List<TypedFilter>? {
     if (hexToWatch == null) {
       return null
     }
 
     // downloads all the reactions to a given event.
     return listOf(
-      JsonFilter(
-        ids = listOfNotNull(hexToWatch)
+      TypedFilter(
+        types = FeedType.values().toSet(),
+        filter = JsonFilter(
+          ids = listOfNotNull(hexToWatch)
+        )
       ),
-      JsonFilter(
-        authors = listOfNotNull(hexToWatch)
+      TypedFilter(
+        types = FeedType.values().toSet(),
+        filter = JsonFilter(
+          kinds = listOf(MetadataEvent.kind),
+          authors = listOfNotNull(hexToWatch)
+        )
       )
     )
   }
@@ -37,7 +44,7 @@ object NostrSearchEventOrUserDataSource: NostrDataSource<Note>("SingleEventFeed"
   }
 
   override fun updateChannelFilters() {
-    searchChannel.filter = createAnythingWithIDFilter()
+    searchChannel.typedFilters = createAnythingWithIDFilter()
   }
 
   fun search(eventId: String) {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSingleChannelDataSource.kt

@@ -3,18 +3,15 @@ package com.vitorpamplona.amethyst.service
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
-import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
-import com.vitorpamplona.amethyst.service.model.ReactionEvent
-import com.vitorpamplona.amethyst.service.model.RepostEvent
-import java.util.Collections
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
-import nostr.postr.events.TextNoteEvent
 
 object NostrSingleChannelDataSource: NostrDataSource<Note>("SingleChannelFeed") {
   private var channelsToWatch = setOf<String>()
 
-  private fun createRepliesAndReactionsFilter(): JsonFilter? {
+  private fun createRepliesAndReactionsFilter(): TypedFilter? {
     val reactionsToWatch = channelsToWatch.map { it }
 
     if (reactionsToWatch.isEmpty()) {
@@ -22,13 +19,16 @@ object NostrSingleChannelDataSource: NostrDataSource<Note>("SingleChannelFeed")
     }
 
     // downloads all the reactions to a given event.
-    return JsonFilter(
-      kinds = listOf(ChannelMetadataEvent.kind),
-      tags = mapOf("e" to reactionsToWatch)
+    return TypedFilter(
+      types = setOf(FeedType.PUBLIC_CHATS),
+      filter = JsonFilter(
+        kinds = listOf(ChannelMetadataEvent.kind),
+        tags = mapOf("e" to reactionsToWatch)
+      )
     )
   }
 
-  fun createLoadEventsIfNotLoadedFilter(): JsonFilter? {
+  fun createLoadEventsIfNotLoadedFilter(): TypedFilter? {
     val directEventsToLoad = channelsToWatch
       .map { LocalCache.getOrCreateChannel(it) }
       .filter { it.notes.isEmpty() }
@@ -40,14 +40,16 @@ object NostrSingleChannelDataSource: NostrDataSource<Note>("SingleChannelFeed")
     }
 
     // downloads linked events to this event.
-    return JsonFilter(
-      kinds = listOf(ChannelCreateEvent.kind),
-      ids = interestedEvents.toList()
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(ChannelCreateEvent.kind),
+        ids = interestedEvents.toList()
+      )
     )
   }
 
-  val repliesAndReactionsChannel = requestNewChannel()
-  val loadEventsChannel = requestNewChannel()
+  val singleChannelChannel = requestNewChannel()
 
   override fun feed(): List<Note> {
     return emptyList()
@@ -57,8 +59,7 @@ object NostrSingleChannelDataSource: NostrDataSource<Note>("SingleChannelFeed")
     val reactions = createRepliesAndReactionsFilter()
     val missing = createLoadEventsIfNotLoadedFilter()
 
-    repliesAndReactionsChannel.filter = listOfNotNull(reactions).ifEmpty { null }
-    loadEventsChannel.filter = listOfNotNull(missing).ifEmpty { null }
+    singleChannelChannel.typedFilters = listOfNotNull(reactions, missing).ifEmpty { null }
   }
 
   fun add(eventId: String) {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSingleEventDataSource.kt

@@ -6,31 +6,44 @@ import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
-import java.util.Collections
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
+import java.util.Date
 import nostr.postr.JsonFilter
 import nostr.postr.events.TextNoteEvent
 
 object NostrSingleEventDataSource: NostrDataSource<Note>("SingleEventFeed") {
   private var eventsToWatch = setOf<String>()
 
-  private fun createRepliesAndReactionsFilter(): JsonFilter? {
-    val reactionsToWatch = eventsToWatch.map { it }
+  private fun createRepliesAndReactionsFilter(): List<TypedFilter>? {
+    val reactionsToWatch = eventsToWatch.map { LocalCache.getOrCreateNote(it) }
 
     if (reactionsToWatch.isEmpty()) {
       return null
     }
 
-    // downloads all the reactions to a given event.
-    return JsonFilter(
-      kinds = listOf(
-        TextNoteEvent.kind, ReactionEvent.kind, RepostEvent.kind
-      ),
-      tags = mapOf("e" to reactionsToWatch)
-    )
+    val now = Date().time / 1000
+
+    return reactionsToWatch.filter {
+      val lastTime = it.lastReactionsDownloadTime;
+      lastTime == null || lastTime < (now - 10)
+    }.map {
+      TypedFilter(
+        types = FeedType.values().toSet(),
+        filter = JsonFilter(
+          kinds = listOf(
+            TextNoteEvent.kind, ReactionEvent.kind, RepostEvent.kind, ReportEvent.kind
+          ),
+          tags = mapOf("e" to listOf(it.idHex)),
+          since = it.lastReactionsDownloadTime
+        )
+      )
+    }
   }
 
-  fun createLoadEventsIfNotLoadedFilter(): JsonFilter? {
+  fun createLoadEventsIfNotLoadedFilter(): List<TypedFilter>? {
     val directEventsToLoad = eventsToWatch
       .map { LocalCache.getOrCreateNote(it) }
       .filter { it.event == null }
@@ -50,17 +63,28 @@ object NostrSingleEventDataSource: NostrDataSource<Note>("SingleEventFeed") {
     }
 
     // downloads linked events to this event.
-    return JsonFilter(
-      kinds = listOf(
-        TextNoteEvent.kind, ReactionEvent.kind, RepostEvent.kind,
-        ChannelMessageEvent.kind, ChannelCreateEvent.kind, ChannelMetadataEvent.kind
-      ),
-      ids = interestedEvents.toList()
+    return listOf(
+      TypedFilter(
+        types = FeedType.values().toSet(),
+        filter = JsonFilter(
+          kinds = listOf(
+            TextNoteEvent.kind, ReactionEvent.kind, RepostEvent.kind,
+            ChannelMessageEvent.kind, ChannelCreateEvent.kind, ChannelMetadataEvent.kind
+          ),
+          ids = interestedEvents.toList()
+        )
+      )
     )
   }
 
-  val repliesAndReactionsChannel = requestNewChannel()
-  val loadEventsChannel = requestNewChannel()
+  val singleEventChannel = requestNewChannel() { time ->
+    eventsToWatch.forEach {
+      LocalCache.getOrCreateNote(it).lastReactionsDownloadTime = time
+    }
+    // Many relays operate with limits in the amount of filters.
+    // As information comes, the filters will be rotated to get more data.
+    invalidateFilters()
+  }
 
   override fun feed(): List<Note> {
     return synchronized(eventsToWatch) {
@@ -74,8 +98,7 @@ object NostrSingleEventDataSource: NostrDataSource<Note>("SingleEventFeed") {
     val reactions = createRepliesAndReactionsFilter()
     val missing = createLoadEventsIfNotLoadedFilter()
 
-    repliesAndReactionsChannel.filter = listOfNotNull(reactions).ifEmpty { null }
-    loadEventsChannel.filter = listOfNotNull(missing).ifEmpty { null }
+    singleEventChannel.typedFilters = listOfNotNull(reactions, missing).flatten().ifEmpty { null }
   }
 
   fun add(eventId: String) {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrSingleUserDataSource.kt

@@ -1,28 +1,50 @@
 package com.vitorpamplona.amethyst.service
 
 import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
-import java.util.Collections
+import com.vitorpamplona.amethyst.service.model.ReportEvent
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.MetadataEvent
 
 object NostrSingleUserDataSource: NostrDataSource<User>("SingleUserFeed") {
   var usersToWatch = setOf<String>()
 
-  fun createUserFilter(): List<JsonFilter>? {
+  fun createUserFilter(): List<TypedFilter>? {
     if (usersToWatch.isEmpty()) return null
 
-    return usersToWatch.map {
-      JsonFilter(
-        kinds = listOf(MetadataEvent.kind),
-        authors = listOf(it),
-        limit = 1
+    return usersToWatch.filter { LocalCache.getOrCreateUser(it).latestMetadata == null }.map {
+      TypedFilter(
+        types = FeedType.values().toSet(),
+        filter = JsonFilter(
+          kinds = listOf(MetadataEvent.kind),
+          authors = listOf(it),
+          limit = 1
+        )
       )
     }
   }
 
-  val userChannel = requestNewChannel()
+  fun createUserReportFilter(): List<TypedFilter>? {
+    if (usersToWatch.isEmpty()) return null
+
+    return usersToWatch.map {
+      TypedFilter(
+        types = FeedType.values().toSet(),
+        filter = JsonFilter(
+          kinds = listOf(ReportEvent.kind),
+          tags = mapOf("p" to listOf(it))
+        )
+      )
+    }
+  }
+
+  val userChannel = requestNewChannel(){
+    // Many relays operate with limits in the amount of filters.
+    // As information comes, the filters will be rotated to get more data.
+    invalidateFilters()
+  }
 
   override fun feed(): List<User> {
     return synchronized(usersToWatch) {
@@ -33,7 +55,7 @@ object NostrSingleUserDataSource: NostrDataSource<User>("SingleUserFeed") {
   }
 
   override fun updateChannelFilters() {
-    userChannel.filter = createUserFilter()
+    userChannel.typedFilters = listOfNotNull(createUserFilter(), createUserReportFilter()).flatten()
   }
 
   fun add(userId: String) {

app/src/main/java/com/vitorpamplona/amethyst/service/NostrThreadDataSource.kt

@@ -4,33 +4,32 @@ import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
-import java.util.Collections
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
 import nostr.postr.events.TextNoteEvent
 
 object NostrThreadDataSource: NostrDataSource<Note>("SingleThreadFeed") {
-  val eventsToWatch = Collections.synchronizedList(mutableListOf<String>())
+  private var eventsToWatch = setOf<String>()
 
-  fun createRepliesAndReactionsFilter(): JsonFilter? {
-    val reactionsToWatch = eventsToWatch.map { it }
-
-    if (reactionsToWatch.isEmpty()) {
+  fun createRepliesAndReactionsFilter(): TypedFilter? {
+    if (eventsToWatch.isEmpty()) {
       return null
     }
 
-    return JsonFilter(
-      kinds = listOf(TextNoteEvent.kind, ReactionEvent.kind, RepostEvent.kind),
-      tags = mapOf("e" to reactionsToWatch)
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(TextNoteEvent.kind, ReactionEvent.kind, RepostEvent.kind),
+        tags = mapOf("e" to eventsToWatch.toList())
+      )
     )
   }
 
-  fun createLoadEventsIfNotLoadedFilter(): JsonFilter? {
-    val nodes = synchronized(eventsToWatch) {
-      eventsToWatch.map { LocalCache.notes[it] }
-    }
+  fun createLoadEventsIfNotLoadedFilter(): TypedFilter? {
+    val nodes = eventsToWatch.map { LocalCache.getOrCreateNote(it) }
 
     val eventsToLoad = nodes
-      .filterNotNull()
       .filter { it.event == null }
       .map { it.idHex.substring(0, 8) }
 
@@ -38,25 +37,27 @@ object NostrThreadDataSource: NostrDataSource<Note>("SingleThreadFeed") {
       return null
     }
 
-    return JsonFilter(
-      ids = eventsToLoad
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        ids = eventsToLoad
+      )
     )
   }
 
-  val repliesAndReactionsChannel = requestNewChannel()
   val loadEventsChannel = requestNewChannel()
 
   override fun feed(): List<Note> {
-    return synchronized(eventsToWatch) {
-      eventsToWatch.map {
-        LocalCache.notes[it]
-      }.filterNotNull()
-    }
+    // Currently orders by date of each event, descending, at each level of the reply stack
+    val order = compareByDescending<Note> { it.replyLevelSignature() }
+
+    return eventsToWatch.map {
+      LocalCache.getOrCreateNote(it)
+    }.sortedWith(order)
   }
 
   override fun updateChannelFilters() {
-    repliesAndReactionsChannel.filter = listOfNotNull(createRepliesAndReactionsFilter()).ifEmpty { null }
-    loadEventsChannel.filter = listOfNotNull(createLoadEventsIfNotLoadedFilter()).ifEmpty { null }
+    loadEventsChannel.typedFilters = listOfNotNull(createLoadEventsIfNotLoadedFilter(), createRepliesAndReactionsFilter()).ifEmpty { null }
   }
 
   fun searchRoot(note: Note, testedNotes: MutableSet<Note> = mutableSetOf()): Note? {
@@ -86,9 +87,9 @@ object NostrThreadDataSource: NostrDataSource<Note>("SingleThreadFeed") {
   }
 
   fun loadThread(noteId: String) {
-    val note = LocalCache.notes[noteId]
+    val note = LocalCache.getOrCreateNote(noteId)
 
-    if (note != null) {
+    if (note.event != null) {
       val thread = mutableListOf<Note>()
       val threadSet = mutableSetOf<Note>()
 
@@ -96,17 +97,12 @@ object NostrThreadDataSource: NostrDataSource<Note>("SingleThreadFeed") {
 
       loadDown(threadRoot, thread, threadSet)
 
-      // Currently orders by date of each event, descending, at each level of the reply stack
-      val order = compareByDescending<Note> { it.replyLevelSignature() }
-
-      eventsToWatch.clear()
-      eventsToWatch.addAll(thread.sortedWith(order).map { it.idHex })
+      eventsToWatch = thread.map { it.idHex }.toSet()
     } else {
-      eventsToWatch.clear()
-      eventsToWatch.add(noteId)
+      eventsToWatch = setOf(noteId)
     }
 
-    resetFilters()
+    invalidateFilters()
   }
 
   fun loadDown(note: Note, thread: MutableList<Note>, threadSet: MutableSet<Note>) {
@@ -114,9 +110,7 @@ object NostrThreadDataSource: NostrDataSource<Note>("SingleThreadFeed") {
       thread.add(note)
       threadSet.add(note)
 
-      synchronized(note.replies) {
-        note.replies.toList()
-      }.forEach {
+      note.replies.forEach {
         loadDown(it, thread, threadSet)
       }
     }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrUserProfileDataSource.kt

@@ -4,8 +4,10 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
-import com.vitorpamplona.amethyst.model.toByteArray
+import com.vitorpamplona.amethyst.service.relays.FeedType
+import com.vitorpamplona.amethyst.service.relays.TypedFilter
 import nostr.postr.JsonFilter
+import nostr.postr.events.ContactListEvent
 import nostr.postr.events.MetadataEvent
 import nostr.postr.events.TextNoteEvent
 
@@ -14,39 +16,67 @@ object NostrUserProfileDataSource: NostrDataSource<Note>("UserProfileFeed") {
   var user: User? = null
 
   fun loadUserProfile(userId: String) {
-    user = LocalCache.getOrCreateUser(userId.toByteArray())
+    user = LocalCache.getOrCreateUser(userId)
     resetFilters()
   }
 
-  fun createUserInfoFilter(): JsonFilter {
-    return JsonFilter(
-      kinds = listOf(MetadataEvent.kind),
-      authors = listOf(user!!.pubkeyHex),
-      limit = 1
+  fun createUserInfoFilter(): TypedFilter {
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(MetadataEvent.kind),
+        authors = listOf(user!!.pubkeyHex),
+        limit = 1
+      )
     )
   }
 
-  fun createUserPostsFilter(): JsonFilter {
-    return JsonFilter(
-      kinds = listOf(TextNoteEvent.kind),
-      authors = listOf(user!!.pubkeyHex),
-      limit = 100
+  fun createUserPostsFilter(): TypedFilter {
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(TextNoteEvent.kind),
+        authors = listOf(user!!.pubkeyHex),
+        limit = 100
+      )
     )
   }
 
+  fun createFollowFilter(): TypedFilter {
+    return TypedFilter(
+      types = FeedType.values().toSet(),
+      filter = JsonFilter(
+        kinds = listOf(ContactListEvent.kind),
+        authors = listOf(user!!.pubkeyHex),
+        limit = 1
+      )
+    )
+  }
+
+  fun createFollowersFilter() = TypedFilter(
+    types = FeedType.values().toSet(),
+    filter = JsonFilter(
+      kinds = listOf(ContactListEvent.kind),
+      tags = mapOf("p" to listOf(user!!.pubkeyHex))
+    )
+  )
+
   val userInfoChannel = requestNewChannel()
-  val notesChannel = requestNewChannel()
 
   override fun feed(): List<Note> {
-    val notes = user?.notes ?: return emptyList()
-    val sortedNotes = synchronized(notes) {
-      notes.filter { account.isAcceptable(it) }.sortedBy { it.event?.createdAt }
-    }
-    return sortedNotes.reversed()
+    return user?.notes
+      ?.filter { account.isAcceptable(it) }
+      ?.sortedBy { it.event?.createdAt }
+      ?.reversed()
+      ?: emptyList()
   }
 
   override fun updateChannelFilters() {
-    userInfoChannel.filter = listOf(createUserInfoFilter()).ifEmpty { null }
-    notesChannel.filter = listOf(createUserPostsFilter()).ifEmpty { null }
+    userInfoChannel.typedFilters = listOf(
+      createUserInfoFilter(),
+      createUserPostsFilter(),
+      createFollowFilter(),
+      createFollowersFilter()
+    ).ifEmpty { null }
   }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrUserProfileFollowersDataSource.kt

@@ -15,22 +15,9 @@ object NostrUserProfileFollowersDataSource: NostrDataSource<User>("UserProfileFo
     resetFilters()
   }
 
-  fun createFollowersFilter() = JsonFilter(
-    kinds = listOf(ContactListEvent.kind),
-    tags = mapOf("p" to listOf(user!!.pubkeyHex))
-  )
-
-  val followerChannel = requestNewChannel()
-
   override fun feed(): List<User> {
-    val followers = user?.followers ?: emptyList()
-
-    return synchronized(followers) {
-      followers.filter { account.isAcceptable(it) }.toList()
-    }
+    return user?.followers?.filter { account.isAcceptable(it) } ?: emptyList()
   }
 
-  override fun updateChannelFilters() {
-    followerChannel.filter = listOf(createFollowersFilter()).ifEmpty { null }
-  }
+  override fun updateChannelFilters() {}
 }

app/src/main/java/com/vitorpamplona/amethyst/service/NostrUserProfileFollowsDataSource.kt

@@ -15,25 +15,9 @@ object NostrUserProfileFollowsDataSource: NostrDataSource<User>("UserProfileFoll
     resetFilters()
   }
 
-  fun createFollowFilter(): JsonFilter {
-    return JsonFilter(
-      kinds = listOf(ContactListEvent.kind),
-      authors = listOf(user!!.pubkeyHex),
-      limit = 1
-    )
-  }
-
-  val followChannel = requestNewChannel()
-
   override fun feed(): List<User> {
-    val follows = user?.follows ?: emptyList()
-
-    return synchronized(follows) {
-      follows.filter { account.isAcceptable(it) }.toList()
-    }
+    return user?.follows?.filter { account.isAcceptable(it) } ?: emptyList()
   }
 
-  override fun updateChannelFilters() {
-    followChannel.filter = listOf(createFollowFilter()).ifEmpty { null }
-  }
+  override fun updateChannelFilters() {}
 }

app/src/main/java/com/vitorpamplona/amethyst/service/lang/LanguageTranslatorService.kt

@@ -0,0 +1,84 @@
+package com.vitorpamplona.amethyst.service.lang
+
+import android.util.LruCache
+import com.google.android.gms.tasks.Task
+import com.google.android.gms.tasks.Tasks
+import com.google.mlkit.nl.languageid.LanguageIdentification
+import com.google.mlkit.nl.translate.TranslateLanguage
+import com.google.mlkit.nl.translate.Translation
+import com.google.mlkit.nl.translate.Translator
+import com.google.mlkit.nl.translate.TranslatorOptions
+import java.util.ArrayList
+
+class ResultOrError(
+  var result: String?,
+  var sourceLang: String?,
+  var targetLang: String?,
+  var error: Exception?
+)
+
+object LanguageTranslatorService {
+  private val languageIdentification = LanguageIdentification.getClient()
+
+  private val translators =
+    object : LruCache<TranslatorOptions, Translator>(10) {
+      override fun create(options: TranslatorOptions): Translator {
+        return Translation.getClient(options)
+      }
+
+      override fun entryRemoved(
+        evicted: Boolean,
+        key: TranslatorOptions,
+        oldValue: Translator,
+        newValue: Translator?
+      ) {
+        oldValue.close()
+      }
+    }
+
+  fun identifyLanguage(text: String): Task<String> {
+    return languageIdentification.identifyLanguage(text)
+  }
+
+  fun translate(text: String, source: String, target: String): Task<ResultOrError> {
+    val sourceLangCode = TranslateLanguage.fromLanguageTag(source)
+    val targetLangCode = TranslateLanguage.fromLanguageTag(target)
+    if (sourceLangCode == null || targetLangCode == null) {
+      return Tasks.forCanceled()
+    }
+
+    val options = TranslatorOptions.Builder()
+      .setSourceLanguage(sourceLangCode)
+      .setTargetLanguage(targetLangCode)
+      .build()
+
+    val translator = translators[options]
+
+    return translator.downloadModelIfNeeded().onSuccessTask {
+      val tasks = mutableListOf<Task<String>>()
+      for (paragraph in text.split("\n")) {
+        tasks.add(translator.translate(paragraph))
+      }
+
+      Tasks.whenAll(tasks).continueWith {
+        val results: MutableList<String> = ArrayList()
+        for (task in tasks) {
+          results.add(task.result)
+        }
+        ResultOrError(results.joinToString("\n"), source, target, null)
+      }
+    }
+  }
+
+  fun autoTranslate(text: String, dontTranslateFrom: Set<String>, translateTo: String): Task<ResultOrError> {
+    return identifyLanguage(text).onSuccessTask {
+      if (it == translateTo) {
+        Tasks.forCanceled()
+      } else if (it != "und" && !dontTranslateFrom.contains(it)) {
+        translate(text, it, translateTo)
+      } else {
+        Tasks.forCanceled()
+      }
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/model/ReportEvent.kt

@@ -0,0 +1,66 @@
+package com.vitorpamplona.amethyst.service.model
+
+import androidx.compose.ui.text.toUpperCase
+import java.util.Date
+import nostr.postr.Utils
+import nostr.postr.events.Event
+import nostr.postr.toHex
+
+// NIP 56 event.
+class ReportEvent (
+  id: ByteArray,
+  pubKey: ByteArray,
+  createdAt: Long,
+  tags: List<List<String>>,
+  content: String,
+  sig: ByteArray
+): Event(id, pubKey, createdAt, kind, tags, content, sig) {
+
+  @Transient val reportType: List<ReportType>
+  @Transient val reportedPost: List<String>
+  @Transient val reportedAuthor: List<String>
+
+  init {
+    reportType = tags.filter { it.firstOrNull() == "report" }.mapNotNull { it.getOrNull(1) }.map { ReportType.valueOf(it.toUpperCase()) }
+    reportedPost = tags.filter { it.firstOrNull() == "e" }.mapNotNull { it.getOrNull(1) }
+    reportedAuthor = tags.filter { it.firstOrNull() == "p" }.mapNotNull { it.getOrNull(1) }
+  }
+
+  companion object {
+    const val kind = 1984
+
+    fun create(reportedPost: Event, type: ReportType, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ReportEvent {
+      val content = ""
+
+      val reportTypeTag = listOf("report", type.name.toLowerCase())
+      val reportPostTag = listOf("e", reportedPost.id.toHex())
+      val reportAuthorTag = listOf("p", reportedPost.pubKey.toHex())
+
+      val pubKey = Utils.pubkeyCreate(privateKey)
+      val tags:List<List<String>> = listOf(reportTypeTag, reportPostTag, reportAuthorTag)
+      val id = generateId(pubKey, createdAt, kind, tags, content)
+      val sig = Utils.sign(id, privateKey)
+      return ReportEvent(id, pubKey, createdAt, tags, content, sig)
+    }
+
+    fun create(reportedUser: String, type: ReportType, privateKey: ByteArray, createdAt: Long = Date().time / 1000): ReportEvent {
+      val content = ""
+
+      val reportTypeTag = listOf("report", type.name.toLowerCase())
+      val reportAuthorTag = listOf("p", reportedUser)
+
+      val pubKey = Utils.pubkeyCreate(privateKey)
+      val tags:List<List<String>> = listOf(reportTypeTag, reportAuthorTag)
+      val id = generateId(pubKey, createdAt, kind, tags, content)
+      val sig = Utils.sign(id, privateKey)
+      return ReportEvent(id, pubKey, createdAt, tags, content, sig)
+    }
+  }
+
+  enum class ReportType() {
+    EXPLICIT,
+    ILLEGAL,
+    SPAM,
+    IMPERSONATION
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/model/RepostEvent.kt

@@ -1,5 +1,6 @@
 package com.vitorpamplona.amethyst.service.model
 
+import com.vitorpamplona.amethyst.service.relays.Client
 import java.util.Date
 import nostr.postr.Utils
 import nostr.postr.events.Event
@@ -16,17 +17,24 @@ class RepostEvent (
 
   @Transient val boostedPost: List<String>
   @Transient val originalAuthor: List<String>
+  @Transient val containedPost: Event?
 
   init {
     boostedPost = tags.filter { it.firstOrNull() == "e" }.mapNotNull { it.getOrNull(1) }
     originalAuthor = tags.filter { it.firstOrNull() == "p" }.mapNotNull { it.getOrNull(1) }
+
+    containedPost = try {
+      fromJson(content, Client.lenient)
+    } catch (e: Exception) {
+      null
+    }
   }
 
   companion object {
     const val kind = 6
 
     fun create(boostedPost: Event, privateKey: ByteArray, createdAt: Long = Date().time / 1000): RepostEvent {
-      val content = ""
+      val content = boostedPost.toJson()
 
       val replyToPost = listOf("e", boostedPost.id.toHex())
       val replyToAuthor = listOf("p", boostedPost.pubKey.toHex())

app/src/main/java/com/vitorpamplona/amethyst/service/relays/Client.kt

@@ -1,10 +1,6 @@
 package com.vitorpamplona.amethyst.service.relays
 
-import com.vitorpamplona.amethyst.service.Constants
-import java.util.Collections
 import java.util.UUID
-import java.util.concurrent.ConcurrentHashMap
-import nostr.postr.JsonFilter
 import nostr.postr.events.Event
 
 /**
@@ -24,10 +20,10 @@ object Client: RelayPool.Listener {
      **/
     var lenient: Boolean = false
     private var listeners = setOf<Listener>()
-    private var relays = Constants.defaultRelays
-    private val subscriptions = mutableMapOf<String, List<JsonFilter>>()
+    private var relays = Constants.convertDefaultRelays()
+    private var subscriptions = mapOf<String, List<TypedFilter>>()
 
-    fun connect(relays: Array<Relay> = Constants.defaultRelays) {
+    fun connect(relays: Array<Relay>) {
         RelayPool.register(this)
         RelayPool.unloadRelays()
         RelayPool.loadRelays(relays.toList())
@@ -36,17 +32,17 @@ object Client: RelayPool.Listener {
 
     fun sendFilter(
         subscriptionId: String = UUID.randomUUID().toString().substring(0..10),
-        filters: List<JsonFilter> = listOf(JsonFilter())
+        filters: List<TypedFilter> = listOf()
     ) {
-        subscriptions[subscriptionId] = filters
+        subscriptions = subscriptions + Pair(subscriptionId, filters)
         RelayPool.sendFilter(subscriptionId)
     }
 
     fun sendFilterOnlyIfDisconnected(
         subscriptionId: String = UUID.randomUUID().toString().substring(0..10),
-        filters: List<JsonFilter> = listOf(JsonFilter())
+        filters: List<TypedFilter> = listOf()
     ) {
-        subscriptions[subscriptionId] = filters
+        subscriptions = subscriptions + Pair(subscriptionId, filters)
         RelayPool.sendFilterOnlyIfDisconnected()
     }
 
@@ -72,8 +68,8 @@ object Client: RelayPool.Listener {
         listeners.forEach { it.onError(error, subscriptionId, relay) }
     }
 
-    override fun onRelayStateChange(type: Relay.Type, relay: Relay) {
-        listeners.forEach { it.onRelayStateChange(type, relay) }
+    override fun onRelayStateChange(type: Relay.Type, relay: Relay, channel: String?) {
+        listeners.forEach { it.onRelayStateChange(type, relay, channel) }
     }
 
     override fun onSendResponse(eventId: String, success: Boolean, message: String, relay: Relay) {
@@ -89,12 +85,10 @@ object Client: RelayPool.Listener {
     }
 
     fun allSubscriptions(): List<String> {
-        return synchronized(subscriptions) {
-            subscriptions.keys.toList()
-        }
+        return subscriptions.keys.toList()
     }
 
-    fun getSubscriptionFilters(subId: String): List<JsonFilter> {
+    fun getSubscriptionFilters(subId: String): List<TypedFilter> {
         return subscriptions[subId] ?: emptyList()
     }
 
@@ -112,7 +106,7 @@ object Client: RelayPool.Listener {
         /**
          * Connected to or disconnected from a relay
          */
-        open fun onRelayStateChange(type: Relay.Type, relay: Relay) = Unit
+        open fun onRelayStateChange(type: Relay.Type, relay: Relay, channel: String?) = Unit
 
         /**
          * When an relay saves or rejects a new event.

app/src/main/java/com/vitorpamplona/amethyst/service/relays/Constants.kt

@@ -0,0 +1,48 @@
+package com.vitorpamplona.amethyst.service.relays
+
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
+
+object Constants {
+  val activeTypes = setOf(FeedType.FOLLOWS, FeedType.PRIVATE_DMS)
+  val activeTypesGlobalChats = setOf(FeedType.FOLLOWS, FeedType.PUBLIC_CHATS, FeedType.PRIVATE_DMS, FeedType.GLOBAL)
+
+  fun convertDefaultRelays(): Array<Relay> {
+    return defaultRelays.map {
+      Relay(it.url, it.read, it.write, it.feedTypes)
+    }.toTypedArray()
+  }
+
+  val defaultRelays = arrayOf(
+    // Free relays
+    RelaySetupInfo("wss://nostr.bitcoiner.social", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://relay.nostr.bg", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://relay.snort.social", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://relay.damus.io", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr.oxtr.dev", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr-pub.wellorder.net", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nostr.mom", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://no.str.cr", read = true, write = true, feedTypes = activeTypes),
+    RelaySetupInfo("wss://nos.lol", read = true, write = true, feedTypes = activeTypes),
+
+    // Less Reliable
+    //NewRelayListViewModel.Relay("wss://nostr.orangepill.dev", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://nostr.onsats.org", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://nostr.sandwich.farm", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://relay.nostr.ch", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://nostr.zebedee.cloud", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://nostr.rocks", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://nostr.fmt.wiz.biz", read = true, write = true, feedTypes = activeTypes),
+    //NewRelayListViewModel.Relay("wss://brb.io", read = true, write = true, feedTypes = activeTypes),
+
+    // Paid relays
+    RelaySetupInfo("wss://relay.nostr.com.au", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://eden.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://nostr.milou.lol", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://puravida.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://nostr.wine", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://nostr.inosta.cc", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://atlas.nostr.land", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://relay.orangepill.dev", read = true, write = false, feedTypes = activeTypesGlobalChats),
+    RelaySetupInfo("wss://relay.nostrati.com", read = true, write = false, feedTypes = activeTypesGlobalChats),
+  )
+}

app/src/main/java/com/vitorpamplona/amethyst/service/relays/Relay.kt

@@ -2,29 +2,41 @@ package com.vitorpamplona.amethyst.service.relays
 
 import android.util.Log
 import com.google.gson.JsonElement
-import com.vitorpamplona.amethyst.model.LocalCache
 import java.util.Date
-import nostr.postr.events.ContactListEvent
+import java.util.concurrent.TimeUnit
 import nostr.postr.events.Event
-import nostr.postr.toNpub
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import okhttp3.Response
 import okhttp3.WebSocket
 import okhttp3.WebSocketListener
 
+enum class FeedType {
+    FOLLOWS, PUBLIC_CHATS, PRIVATE_DMS, GLOBAL
+}
+
 class Relay(
-  var url: String,
-  var read: Boolean = true,
-  var write: Boolean = true
+    var url: String,
+    var read: Boolean = true,
+    var write: Boolean = true,
+    var activeTypes: Set<FeedType> = FeedType.values().toSet(),
 ) {
-    private val httpClient = OkHttpClient()
+    private val httpClient = OkHttpClient.Builder()
+        .connectTimeout(100, TimeUnit.SECONDS)
+        .readTimeout(100, TimeUnit.SECONDS)
+        .callTimeout(100, TimeUnit.SECONDS)
+        .followRedirects(true)
+        .followSslRedirects(true)
+        .build();
+
     private var listeners = setOf<Listener>()
     private var socket: WebSocket? = null
+    private var isReady: Boolean = false
 
     var eventDownloadCounter = 0
     var eventUploadCounter = 0
     var errorCounter = 0
+    var ping: Long? = null
 
     var closingTime = 0L
 
@@ -40,82 +52,106 @@ class Relay(
         return socket != null
     }
 
+    @Synchronized
     fun requestAndWatch() {
-        val request = Request.Builder().url(url.trim()).build()
-        val listener = object : WebSocketListener() {
+        if (socket != null) return
 
-            override fun onOpen(webSocket: WebSocket, response: Response) {
-                // Sends everything.
-                Client.allSubscriptions().forEach {
-                    sendFilter(requestId = it)
+        try {
+            val request = Request.Builder().url(url.trim()).build()
+            val listener = object : WebSocketListener() {
+
+                override fun onOpen(webSocket: WebSocket, response: Response) {
+                    isReady = true
+                    ping = response.receivedResponseAtMillis - response.sentRequestAtMillis
+
+                    // Log.w("Relay", "Relay OnOpen, Loading All subscriptions $url")
+                    // Sends everything.
+                    Client.allSubscriptions().forEach {
+                        sendFilter(requestId = it)
+                    }
+                    listeners.forEach { it.onRelayStateChange(this@Relay, Type.CONNECT, null) }
                 }
-                listeners.forEach { it.onRelayStateChange(this@Relay, Type.CONNECT) }
-            }
 
-            override fun onMessage(webSocket: WebSocket, text: String) {
-                try {
-                    val msg = Event.gson.fromJson(text, JsonElement::class.java).asJsonArray
-                    val type = msg[0].asString
-                    val channel = msg[1].asString
-                    when (type) {
-                        "EVENT" -> {
-                            eventDownloadCounter++
-                            val event = Event.fromJson(msg[2], Client.lenient)
-                            listeners.forEach { it.onEvent(this@Relay, channel, event) }
+                override fun onMessage(webSocket: WebSocket, text: String) {
+                    try {
+                        val msg = Event.gson.fromJson(text, JsonElement::class.java).asJsonArray
+                        val type = msg[0].asString
+                        val channel = msg[1].asString
+                        when (type) {
+                            "EVENT" -> {
+                                //Log.w("Relay", "Relay onEVENT $url, $channel")
+                                eventDownloadCounter++
+                                val event = Event.fromJson(msg[2], Client.lenient)
+                                listeners.forEach { it.onEvent(this@Relay, channel, event) }
+                            }
+                            "EOSE" -> listeners.forEach {
+                                //Log.w("Relay", "Relay onEOSE $url, $channel")
+                                it.onRelayStateChange(this@Relay, Type.EOSE, channel)
+                            }
+                            "NOTICE" -> listeners.forEach {
+                                //Log.w("Relay", "Relay onNotice $url, $channel")
+                                // "channel" being the second string in the string array ...
+                                it.onError(this@Relay, channel, Error("Relay sent notice: $channel"))
+                            }
+                            "OK" -> listeners.forEach {
+                                //Log.w("Relay", "Relay onOK $url, $channel")
+                                it.onSendResponse(this@Relay, msg[1].asString, msg[2].asBoolean, msg[3].asString)
+                            }
+                            else -> listeners.forEach {
+                                //Log.w("Relay", "Relay something else $url, $channel")
+                                it.onError(
+                                    this@Relay,
+                                    channel,
+                                    Error("Unknown type $type on channel $channel. Msg was $text")
+                                )
+                            }
                         }
-                        "EOSE" -> listeners.forEach {
-                            it.onRelayStateChange(this@Relay, Type.EOSE)
-                        }
-                        "NOTICE" -> listeners.forEach {
-                            // "channel" being the second string in the string array ...
-                            it.onError(this@Relay, channel, Error("Relay sent notice: $channel"))
-                        }
-                        "OK" -> listeners.forEach {
-                            it.onSendResponse(this@Relay, msg[1].asString, msg[2].asBoolean, msg[3].asString)
-                        }
-                        else -> listeners.forEach {
-                            it.onError(
-                                this@Relay,
-                                channel,
-                                Error("Unknown type $type on channel $channel. Msg was $text")
-                            )
+                    } catch (t: Throwable) {
+                        t.printStackTrace()
+                        text.chunked(2000) { chunked ->
+                            listeners.forEach { it.onError(this@Relay, "", Error("Problem with $chunked")) }
                         }
                     }
-                } catch (t: Throwable) {
+                }
+
+                override fun onClosing(webSocket: WebSocket, code: Int, reason: String) {
+                    listeners.forEach { it.onRelayStateChange(
+                        this@Relay,
+                        Type.DISCONNECTING,
+                        null
+                    ) }
+                }
+
+                override fun onClosed(webSocket: WebSocket, code: Int, reason: String) {
+                    socket = null
+                    isReady = false
+                    closingTime = Date().time / 1000
+                    listeners.forEach { it.onRelayStateChange(this@Relay, Type.DISCONNECT, null) }
+                }
+
+                override fun onFailure(webSocket: WebSocket, t: Throwable, response: Response?) {
+                    errorCounter++
+
+                    socket?.close(1000, "Normal close")
+                    // Failures disconnect the relay.
+                    socket = null
+                    isReady = false
+                    closingTime = Date().time / 1000
+
+                    Log.w("Relay", "Relay onFailure $url, ${response?.message} ${response}")
                     t.printStackTrace()
-                    text.chunked(2000) { chunked ->
-                        listeners.forEach { it.onError(this@Relay, "", Error("Problem with $chunked")) }
+                    listeners.forEach {
+                        it.onError(this@Relay, "", Error("WebSocket Failure. Response: ${response}. Exception: ${t.message}", t))
                     }
                 }
             }
 
-            override fun onClosing(webSocket: WebSocket, code: Int, reason: String) {
-                listeners.forEach { it.onRelayStateChange(this@Relay, Type.DISCONNECTING) }
-            }
-
-            override fun onClosed(webSocket: WebSocket, code: Int, reason: String) {
-                socket = null
-                closingTime = Date().time / 1000
-                listeners.forEach { it.onRelayStateChange(this@Relay, Type.DISCONNECT) }
-            }
-
-            override fun onFailure(webSocket: WebSocket, t: Throwable, response: Response?) {
-                errorCounter++
-
-                socket?.close(1000, "Normal close")
-                // Failures disconnect the relay. 
-                socket = null
-                closingTime = Date().time / 1000
-
-                Log.w("Relay", "Relay onFailure ${url}, ${response?.message}")
-                //t.printStackTrace()
-                listeners.forEach {
-                    it.onError(this@Relay, "", Error("WebSocket Failure. Response: ${response}. Exception: ${t.message}", t))
-                }
-            }
+            socket = httpClient.newWebSocket(request, listener)
+        } catch (e: Exception) {
+            closingTime = Date().time / 1000
+            Log.e("Relay", "Relay Invalid $url")
+            e.printStackTrace()
         }
-
-        socket = httpClient.newWebSocket(request, listener)
     }
 
     fun disconnect() {
@@ -123,22 +159,26 @@ class Relay(
         closingTime = Date().time / 1000
         socket?.close(1000, "Normal close")
         socket = null
+        isReady = false
     }
 
     fun sendFilter(requestId: String) {
         if (read) {
-            if (socket == null) {
-                // waits 10 seconds
-                if (Date().time / 1000 > closingTime + 10) {
-                    requestAndWatch()
+            if (isConnected()) {
+                if (isReady) {
+                    val filters = Client.getSubscriptionFilters(requestId).filter { activeTypes.intersect(it.types).isNotEmpty() }
+                    if (filters.isNotEmpty()) {
+                        val request =
+                            """["REQ","$requestId",${filters.take(10).joinToString(",") { it.filter.toJson() }}]"""
+                        //println("FILTERSSENT ${url} ${request}")
+                        socket?.send(request)
+                    }
                 }
             } else {
-                val filters = Client.getSubscriptionFilters(requestId)
-                if (filters.isNotEmpty()) {
-                    val request =
-                        """["REQ","$requestId",${filters.joinToString(",") { it.toJson() }}]"""
-                    //println("FILTERSSENT ${url} " + """["REQ","$requestId",${filters.joinToString(",") { it.toJson() }}]""")
-                    socket?.send(request)
+                // waits 10 seconds to reconnect after disconnected.
+                if (Date().time / 1000 > closingTime + 10) {
+                    // sends all filters after connection is successful.
+                    requestAndWatch()
                 }
             }
         }
@@ -146,6 +186,7 @@ class Relay(
 
     fun sendFilterOnlyIfDisconnected() {
         if (socket == null) {
+            //println("sendfilter Only if Disconnected ${url} ")
             requestAndWatch()
         }
     }
@@ -186,6 +227,6 @@ class Relay(
          *
          * @param type is 0 for disconnect and 1 for connect
          */
-        fun onRelayStateChange(relay: Relay, type: Type)
+        fun onRelayStateChange(relay: Relay, type: Type, channel: String?)
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/service/relays/RelayPool.kt

@@ -1,8 +1,6 @@
 package com.vitorpamplona.amethyst.service.relays
 
 import androidx.lifecycle.LiveData
-import com.vitorpamplona.amethyst.service.Constants
-import java.util.Collections
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -13,6 +11,9 @@ import nostr.postr.events.Event
  * RelayPool manages the connection to multiple Relays and lets consumers deal with simple events.
  */
 object RelayPool: Relay.Listener {
+
+    val scope = CoroutineScope(Job() + Dispatchers.IO)
+
     private var relays = listOf<Relay>()
     private var listeners = setOf<Listener>()
 
@@ -28,11 +29,11 @@ object RelayPool: Relay.Listener {
         return relays.firstOrNull() { it.url == url }
     }
 
-    fun loadRelays(relayList: List<Relay>? = null){
+    fun loadRelays(relayList: List<Relay>){
         if (!relayList.isNullOrEmpty()){
             relayList.forEach { addRelay(it) }
         } else {
-            Constants.defaultRelays.forEach { addRelay(it) }
+            Constants.convertDefaultRelays().forEach { addRelay(it) }
         }
     }
 
@@ -88,7 +89,7 @@ object RelayPool: Relay.Listener {
 
         fun onError(error: Error, subscriptionId: String, relay: Relay)
 
-        fun onRelayStateChange(type: Relay.Type, relay: Relay)
+        fun onRelayStateChange(type: Relay.Type, relay: Relay, channel: String?)
 
         fun onSendResponse(eventId: String, success: Boolean, message: String, relay: Relay)
     }
@@ -103,8 +104,8 @@ object RelayPool: Relay.Listener {
         refreshObservers()
     }
 
-    override fun onRelayStateChange(relay: Relay, type: Relay.Type) {
-        listeners.forEach { it.onRelayStateChange(type, relay) }
+    override fun onRelayStateChange(relay: Relay, type: Relay.Type, channel: String?) {
+        listeners.forEach { it.onRelayStateChange(type, relay, channel) }
         refreshObservers()
     }
 
@@ -116,7 +117,6 @@ object RelayPool: Relay.Listener {
     val live: RelayPoolLiveData = RelayPoolLiveData(this)
 
     private fun refreshObservers() {
-        val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
             live.refresh()
         }

app/src/main/java/com/vitorpamplona/amethyst/service/relays/Subscription.kt

@@ -0,0 +1,30 @@
+package com.vitorpamplona.amethyst.service.relays
+
+import com.google.gson.GsonBuilder
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import java.util.UUID
+
+data class Subscription (
+  val id: String = UUID.randomUUID().toString().substring(0,4),
+  val onEOSE: ((Long) -> Unit)? = null
+) {
+  var typedFilters: List<TypedFilter>? = null // Inactive when null
+
+  fun updateEOSE(l: Long) {
+    onEOSE?.let { it(l) }
+  }
+
+  fun toJson(): String {
+    return GsonBuilder().create().toJson(toJsonObject())
+  }
+
+  fun toJsonObject(): JsonObject {
+    val jsonObject = JsonObject()
+    jsonObject.addProperty("id", id)
+    typedFilters?.run {
+      jsonObject.add("typedFilters", JsonArray().apply { typedFilters?.forEach { add(it.toJsonObject()) } })
+    }
+    return jsonObject
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/service/relays/TypedFilter.kt

@@ -0,0 +1,56 @@
+package com.vitorpamplona.amethyst.service.relays
+
+import com.google.gson.Gson
+import com.google.gson.GsonBuilder
+import com.google.gson.JsonArray
+import com.google.gson.JsonObject
+import nostr.postr.JsonFilter
+
+class TypedFilter(
+  val types: Set<FeedType>,
+  val filter: JsonFilter
+) {
+
+  fun toJson(): String {
+    return GsonBuilder().create().toJson(toJsonObject())
+  }
+
+  fun toJsonObject(): JsonObject {
+    val jsonObject = JsonObject()
+    jsonObject.add("types", typesToJson(types))
+    jsonObject.add("filter", filterToJson(filter))
+    return jsonObject
+  }
+
+  fun typesToJson(types: Set<FeedType>): JsonArray {
+    return JsonArray().apply { types.forEach { add(it.name.toLowerCase()) } }
+  }
+
+  fun filterToJson(filter: JsonFilter): JsonObject {
+    val jsonObject = JsonObject()
+    filter.ids?.run {
+      jsonObject.add("ids", JsonArray().apply { filter.ids?.forEach { add(it) } })
+    }
+    filter.authors?.run {
+      jsonObject.add("authors", JsonArray().apply { filter.authors?.forEach { add(it) } })
+    }
+    filter.kinds?.run {
+      jsonObject.add("kinds", JsonArray().apply { filter.kinds?.forEach { add(it) } })
+    }
+    filter.tags?.run {
+      entries.forEach { kv ->
+        jsonObject.add("#${kv.key}", JsonArray().apply { kv.value.forEach { add(it) } })
+      }
+    }
+    filter.since?.run {
+      jsonObject.addProperty("since", filter.since)
+    }
+    filter.until?.run {
+      jsonObject.addProperty("until", filter.until)
+    }
+    filter.limit?.run {
+      jsonObject.addProperty("limit", filter.limit)
+    }
+    return jsonObject
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/ImageSaver.kt

@@ -0,0 +1,147 @@
+package com.vitorpamplona.amethyst.ui.actions
+
+import android.content.ContentResolver
+import android.content.ContentValues
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.os.Environment
+import android.provider.MediaStore
+import androidx.annotation.RequiresApi
+import androidx.core.net.toUri
+import okhttp3.*
+import okio.BufferedSource
+import okio.IOException
+import okio.sink
+import java.io.File
+
+
+object ImageSaver {
+    /**
+     * Saves the image to the gallery.
+     * May require a storage permission.
+     *
+     * @see PICTURES_SUBDIRECTORY
+     */
+    fun saveImage(
+        url: String,
+        context: Context,
+        onSuccess: () -> Any?,
+        onError: (Throwable) -> Any?,
+    ) {
+        val client = OkHttpClient.Builder().build()
+
+        val request = Request.Builder()
+            .get()
+            .url(url)
+            .build()
+
+        client.newCall(request).enqueue(object : Callback {
+            override fun onFailure(call: Call, e: IOException) {
+                e.printStackTrace()
+                onError(e)
+            }
+
+            override fun onResponse(call: Call, response: Response) {
+                try {
+                    check(response.isSuccessful)
+
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                        val contentType = response.header("Content-Type")
+                        checkNotNull(contentType) {
+                            "Can't find out the content type"
+                        }
+
+                        saveContentQ(
+                            displayName = File(url).nameWithoutExtension,
+                            contentType = contentType,
+                            contentSource = response.body.source(),
+                            contentResolver = context.contentResolver,
+                        )
+                    } else {
+                        saveContentDefault(
+                            fileName = File(url).name,
+                            contentSource = response.body.source(),
+                            context = context,
+                        )
+                    }
+                    onSuccess()
+                } catch (e: Exception) {
+                    e.printStackTrace()
+                    onError(e)
+                }
+            }
+        })
+    }
+
+    @RequiresApi(Build.VERSION_CODES.Q)
+    private fun saveContentQ(
+        displayName: String,
+        contentType: String,
+        contentSource: BufferedSource,
+        contentResolver: ContentResolver,
+    ) {
+        val contentValues = ContentValues().apply {
+            put(MediaStore.MediaColumns.DISPLAY_NAME, displayName)
+            put(MediaStore.MediaColumns.MIME_TYPE, contentType)
+            put(
+                MediaStore.MediaColumns.RELATIVE_PATH,
+                Environment.DIRECTORY_PICTURES + File.separatorChar + PICTURES_SUBDIRECTORY
+            )
+        }
+
+        val uri =
+            contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues)
+        checkNotNull(uri) {
+            "Can't insert the new content"
+        }
+
+        try {
+            val outputStream = contentResolver.openOutputStream(uri)
+            checkNotNull(outputStream) {
+                "Can't open the content output stream"
+            }
+
+            outputStream.use {
+                contentSource.readAll(it.sink())
+            }
+        } catch (e: Exception) {
+            contentResolver.delete(uri, null, null)
+            throw e
+        }
+    }
+
+    private fun saveContentDefault(
+        fileName: String,
+        contentSource: BufferedSource,
+        context: Context,
+    ) {
+        val subdirectory = File(
+            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
+            PICTURES_SUBDIRECTORY
+        )
+
+        if (!subdirectory.exists()) {
+            subdirectory.mkdirs()
+        }
+
+        val outputFile = File(subdirectory, fileName)
+
+        outputFile
+            .outputStream()
+            .use {
+                contentSource.readAll(it.sink())
+            }
+
+        // Call the media scanner manually, so the image
+        // appears in the gallery faster.
+        context.sendBroadcast(
+            Intent(
+                Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
+                outputFile.toUri()
+            )
+        )
+    }
+
+    private const val PICTURES_SUBDIRECTORY = "Amethyst"
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/ImageUploader.kt

@@ -43,9 +43,13 @@ object ImageUploader {
     client.newCall(request).enqueue(object : Callback {
       override fun onResponse(call: Call, response: Response) {
         response.use {
-          val tree = jacksonObjectMapper().readTree(response.body!!.string())
-          val url = tree.get("data").get("link").asText()
-          onSuccess(url)
+          val body = response.body
+          if (body != null) {
+            val tree = jacksonObjectMapper().readTree(body.string())
+            val url = tree?.get("data")?.get("link")?.asText()
+            if (url != null)
+              onSuccess(url)
+          }
         }
       }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewPostViewModel.kt

@@ -16,6 +16,7 @@ import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.model.decodePublicKey
+import com.vitorpamplona.amethyst.model.toHexKey
 import com.vitorpamplona.amethyst.ui.components.isValidURL
 import com.vitorpamplona.amethyst.ui.components.noProtocolUrlValidator
 import nostr.postr.toNpub
@@ -25,7 +26,7 @@ class NewPostViewModel: ViewModel() {
     private var originalNote: Note? = null
 
     var mentions by mutableStateOf<List<User>?>(null)
-    var replyTos by mutableStateOf<MutableList<Note>?>(null)
+    var replyTos by mutableStateOf<List<Note>?>(null)
 
     var message by mutableStateOf(TextFieldValue(""))
     var urlPreview by mutableStateOf<String?>(null)
@@ -36,7 +37,7 @@ class NewPostViewModel: ViewModel() {
     fun load(account: Account, replyingTo: Note?) {
         originalNote = replyingTo
         replyingTo?.let { replyNote ->
-            this.replyTos = (replyNote.replyTo ?: mutableListOf()).plus(replyNote).toMutableList()
+            this.replyTos = (replyNote.replyTo ?: emptyList()).plus(replyNote)
             replyNote.author?.let { replyUser ->
                 val currentMentions = replyNote.mentions ?: emptyList()
                 if (currentMentions.contains(replyUser)) {
@@ -78,7 +79,7 @@ class NewPostViewModel: ViewModel() {
                         val restOfWord = word.substring(64)
 
                         val key = decodePublicKey(keyB32.removePrefix("@"))
-                        val user = LocalCache.getOrCreateUser(key)
+                        val user = LocalCache.getOrCreateUser(key.toHexKey())
 
                         val index = addUserToMentionsIfNotInAndReturnIndex(user)
 

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewRelayListView.kt

@@ -1,25 +1,19 @@
 package com.vitorpamplona.amethyst.ui.actions
 
-import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.Button
 import androidx.compose.material.ButtonDefaults
-import androidx.compose.material.Checkbox
-import androidx.compose.material.Colors
 import androidx.compose.material.Divider
 import androidx.compose.material.Icon
 import androidx.compose.material.IconButton
@@ -28,15 +22,12 @@ import androidx.compose.material.OutlinedTextField
 import androidx.compose.material.Surface
 import androidx.compose.material.Text
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Cancel
-import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Download
-import androidx.compose.material.icons.filled.DownloadDone
+import androidx.compose.material.icons.filled.Groups
+import androidx.compose.material.icons.filled.Public
 import androidx.compose.material.icons.filled.SyncProblem
 import androidx.compose.material.icons.filled.Upload
-import androidx.compose.material.icons.outlined.BarChart
-import androidx.compose.material.icons.outlined.Delete
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
@@ -45,28 +36,32 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
-import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.window.Dialog
 import androidx.compose.ui.window.DialogProperties
 import androidx.lifecycle.viewmodel.compose.viewModel
+import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.Account
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
+import com.vitorpamplona.amethyst.service.relays.FeedType
 import java.lang.Math.round
 
-@OptIn(ExperimentalComposeUiApi::class)
+
 @Composable
-fun NewRelayListView(onClose: () -> Unit, account: Account) {
+fun NewRelayListView(onClose: () -> Unit, account: Account, relayToAdd: String = "") {
     val postViewModel: NewRelayListViewModel = viewModel()
+    val ctx = LocalContext.current.applicationContext
 
     val feedState by postViewModel.relays.collectAsState()
 
     LaunchedEffect(Unit) {
-        postViewModel.load(account)
+        postViewModel.load(account, ctx)
     }
 
     Dialog(
@@ -82,19 +77,18 @@ fun NewRelayListView(onClose: () -> Unit, account: Account) {
                 modifier = Modifier.padding(10.dp)
             ) {
                 Row(
-                    modifier = Modifier
-                        .fillMaxWidth(),
+                    modifier = Modifier.fillMaxWidth(),
                     horizontalArrangement = Arrangement.SpaceBetween,
                     verticalAlignment = Alignment.CenterVertically
                 ) {
                     CloseButton(onCancel = {
-                        postViewModel.clear()
+                        postViewModel.clear(ctx)
                         onClose()
                     })
 
                     PostButton(
                         onPost = {
-                            postViewModel.create()
+                            postViewModel.create(ctx)
                             onClose()
                         },
                         true
@@ -103,7 +97,7 @@ fun NewRelayListView(onClose: () -> Unit, account: Account) {
 
                 Spacer(modifier = Modifier.height(10.dp))
 
-                Row(modifier = Modifier.fillMaxWidth(1f), verticalAlignment = Alignment.CenterVertically) {
+                Row(modifier = Modifier.weight(1f), verticalAlignment = Alignment.CenterVertically) {
                     LazyColumn(
                         contentPadding = PaddingValues(
                             top = 10.dp,
@@ -114,15 +108,15 @@ fun NewRelayListView(onClose: () -> Unit, account: Account) {
                             if (index == 0)
                                 ServerConfigHeader()
                             ServerConfig(item,
-                                onToggleDownload = {
-                                    postViewModel.toggleDownload(it)
-                                },
-                                onToggleUpload = {
-                                    postViewModel.toggleUpload(it)
-                                },
-                                onDelete = {
-                                    postViewModel.deleteRelay(it)
-                                }
+                                onToggleDownload = { postViewModel.toggleDownload(it) },
+                                onToggleUpload = { postViewModel.toggleUpload(it)  },
+
+                                onToggleFollows = { postViewModel.toggleFollows(it) },
+                                onTogglePrivateDMs = { postViewModel.toggleMessages(it)  },
+                                onTogglePublicChats = { postViewModel.togglePublicChats(it) },
+                                onToggleGlobal = { postViewModel.toggleGlobal(it)  },
+
+                                onDelete = { postViewModel.deleteRelay(it) }
                             )
                         }
                     }
@@ -131,7 +125,7 @@ fun NewRelayListView(onClose: () -> Unit, account: Account) {
 
                 Spacer(modifier = Modifier.height(10.dp))
 
-                EditableServerConfig() {
+                EditableServerConfig(relayToAdd) {
                     postViewModel.addRelay(it)
                 }
             }
@@ -156,7 +150,7 @@ fun ServerConfigHeader() {
 
             Column(Modifier.weight(1f)) {
                 Row(verticalAlignment = Alignment.CenterVertically) {
-                    Spacer(modifier = Modifier.size(20.dp))
+                    Spacer(modifier = Modifier.size(25.dp))
 
                     Text(
                         text = "Posts",
@@ -186,7 +180,7 @@ fun ServerConfigHeader() {
                         color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
                     )
 
-                    Spacer(modifier = Modifier.size(20.dp))
+                    Spacer(modifier = Modifier.size(5.dp))
                 }
             }
         }
@@ -199,12 +193,35 @@ fun ServerConfigHeader() {
 
 @Composable
 fun ServerConfig(
-    item: NewRelayListViewModel.Relay,
-    onToggleDownload: (NewRelayListViewModel.Relay) -> Unit,
-    onToggleUpload: (NewRelayListViewModel.Relay) -> Unit,
-    onDelete: (NewRelayListViewModel.Relay) -> Unit) {
+    item: RelaySetupInfo,
+    onToggleDownload: (RelaySetupInfo) -> Unit,
+    onToggleUpload: (RelaySetupInfo) -> Unit,
+
+    onToggleFollows: (RelaySetupInfo) -> Unit,
+    onTogglePrivateDMs: (RelaySetupInfo) -> Unit,
+    onTogglePublicChats: (RelaySetupInfo) -> Unit,
+    onToggleGlobal: (RelaySetupInfo) -> Unit,
+
+    onDelete: (RelaySetupInfo) -> Unit) {
     Column(Modifier.fillMaxWidth()) {
-        Row(verticalAlignment = Alignment.CenterVertically) {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            modifier = Modifier.padding(vertical = 5.dp)
+        ) {
+            Column() {
+                IconButton(
+                    modifier = Modifier.size(30.dp),
+                    onClick = { onDelete(item) }
+                ) {
+                    Icon(
+                        imageVector = Icons.Default.Cancel,
+                        null,
+                        modifier = Modifier.padding(end = 5.dp).size(15.dp),
+                        tint = Color.Red
+                    )
+                }
+            }
+
             Column(Modifier.weight(1f)) {
                 Row(verticalAlignment = Alignment.CenterVertically) {
                     Text(
@@ -214,75 +231,126 @@ fun ServerConfig(
                         overflow = TextOverflow.Ellipsis
                     )
                 }
-            }
 
-            Column(Modifier.weight(1f)) {
                 Row(verticalAlignment = Alignment.CenterVertically) {
-                    IconButton(
-                        modifier = Modifier.size(30.dp),
-                        onClick = { onToggleDownload(item) }
-                    ) {
-                        Icon(
-                            imageVector = Icons.Default.Download,
-                            null,
-                            modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
-                            tint = if (item.read) Color.Green else Color.Red
-                        )
+                    Column(Modifier.weight(1f)) {
+                        Row(verticalAlignment = Alignment.CenterVertically) {
+                            IconButton(
+                                modifier = Modifier.size(30.dp),
+                                onClick = { onToggleFollows(item) }
+                            ) {
+                                Icon(
+                                    painterResource(R.drawable.ic_home),
+                                    "Home Feed",
+                                    modifier = Modifier.padding(end = 5.dp).size(15.dp),
+                                    tint = if (item.feedTypes.contains(FeedType.FOLLOWS)) Color.Green else MaterialTheme.colors.onSurface.copy(
+                                        alpha = 0.32f
+                                    )
+                                )
+                            }
+                            IconButton(
+                                modifier = Modifier.size(30.dp),
+                                onClick = { onTogglePrivateDMs(item) }
+                            ) {
+                                Icon(
+                                    painterResource(R.drawable.ic_dm),
+                                    "Private Message Feed",
+                                    modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
+                                    tint = if (item.feedTypes.contains(FeedType.PRIVATE_DMS)) Color.Green else MaterialTheme.colors.onSurface.copy(
+                                        alpha = 0.32f
+                                    )
+                                )
+                            }
+                            IconButton(
+                                modifier = Modifier.size(30.dp),
+                                onClick = { onTogglePublicChats(item) }
+                            ) {
+                                Icon(
+                                    imageVector = Icons.Default.Groups,
+                                    "Public Chat Feed",
+                                    modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
+                                    tint = if (item.feedTypes.contains(FeedType.PUBLIC_CHATS)) Color.Green else MaterialTheme.colors.onSurface.copy(
+                                        alpha = 0.32f
+                                    )
+                                )
+                            }
+                            IconButton(
+                                modifier = Modifier.size(30.dp),
+                                onClick = { onToggleGlobal(item) }
+                            ) {
+                                Icon(
+                                    imageVector = Icons.Default.Public,
+                                    "Global Feed",
+                                    modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
+                                    tint = if (item.feedTypes.contains(FeedType.GLOBAL)) Color.Green else MaterialTheme.colors.onSurface.copy(
+                                        alpha = 0.32f
+                                    )
+                                )
+                            }
+                        }
                     }
 
-                    Text(
-                        text = "${countToHumanReadable(item.downloadCount)}",
-                        maxLines = 1,
-                        fontSize = 14.sp,
-                        modifier = Modifier.weight(1f),
-                        color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
-                    )
+                    Column(Modifier.weight(1f)) {
+                        Row(verticalAlignment = Alignment.CenterVertically) {
+                            IconButton(
+                                modifier = Modifier.size(30.dp),
+                                onClick = { onToggleDownload(item) }
+                            ) {
+                                Icon(
+                                    imageVector = Icons.Default.Download,
+                                    null,
+                                    modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
+                                    tint = if (item.read) Color.Green else MaterialTheme.colors.onSurface.copy(
+                                        alpha = 0.32f
+                                    )
+                                )
+                            }
 
-                    IconButton(
-                        modifier = Modifier.size(30.dp),
-                        onClick = { onToggleUpload(item) }
-                    ) {
-                        Icon(
-                            imageVector = Icons.Default.Upload,
-                            null,
-                            modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
-                            tint = if (item.write) Color.Green else Color.Red
-                        )
-                    }
+                            Text(
+                                text = "${countToHumanReadable(item.downloadCount)}",
+                                maxLines = 1,
+                                fontSize = 14.sp,
+                                modifier = Modifier.weight(1f),
+                                color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+                            )
 
-                    Text(
-                        text = "${countToHumanReadable(item.uploadCount)}",
-                        maxLines = 1,
-                        fontSize = 14.sp,
-                        modifier = Modifier.weight(1f),
-                        color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
-                    )
+                            IconButton(
+                                modifier = Modifier.size(30.dp),
+                                onClick = { onToggleUpload(item) }
+                            ) {
+                                Icon(
+                                    imageVector = Icons.Default.Upload,
+                                    null,
+                                    modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
+                                    tint = if (item.write) Color.Green else MaterialTheme.colors.onSurface.copy(
+                                        alpha = 0.32f
+                                    )
+                                )
+                            }
 
-                    Icon(
-                        imageVector = Icons.Default.SyncProblem,
-                        null,
-                        modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
-                        tint = if (item.errorCount > 0) Color.Yellow else Color.Green
-                    )
+                            Text(
+                                text = "${countToHumanReadable(item.uploadCount)}",
+                                maxLines = 1,
+                                fontSize = 14.sp,
+                                modifier = Modifier.weight(1f),
+                                color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+                            )
 
-                    Text(
-                        text = "${countToHumanReadable(item.errorCount)}",
-                        maxLines = 1,
-                        fontSize = 14.sp,
-                        modifier = Modifier.weight(1f),
-                        color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
-                    )
+                            Icon(
+                                imageVector = Icons.Default.SyncProblem,
+                                null,
+                                modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
+                                tint = if (item.errorCount > 0) Color.Yellow else Color.Green
+                            )
 
-                    IconButton(
-                        modifier = Modifier.size(30.dp),
-                        onClick = { onDelete(item) }
-                    ) {
-                        Icon(
-                            imageVector = Icons.Default.Cancel,
-                            null,
-                            modifier = Modifier.padding(horizontal = 5.dp).size(15.dp),
-                            tint = Color.Red
-                        )
+                            Text(
+                                text = "${countToHumanReadable(item.errorCount)}",
+                                maxLines = 1,
+                                fontSize = 14.sp,
+                                modifier = Modifier.weight(1f),
+                                color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+                            )
+                        }
                     }
                 }
             }
@@ -295,8 +363,8 @@ fun ServerConfig(
 }
 
 @Composable
-fun EditableServerConfig(onNewRelay: (NewRelayListViewModel.Relay) -> Unit) {
-    var url by remember { mutableStateOf<String>("") }
+fun EditableServerConfig(relayToAdd: String, onNewRelay: (RelaySetupInfo) -> Unit) {
+    var url by remember { mutableStateOf<String>(relayToAdd) }
     var read by remember { mutableStateOf(true) }
     var write by remember { mutableStateOf(true) }
 
@@ -323,7 +391,7 @@ fun EditableServerConfig(onNewRelay: (NewRelayListViewModel.Relay) -> Unit) {
                 modifier = Modifier
                     .size(35.dp)
                     .padding(horizontal = 5.dp),
-                tint = if (read) Color.Green else Color.Red
+                tint = if (read) Color.Green else MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
             )
         }
 
@@ -334,15 +402,16 @@ fun EditableServerConfig(onNewRelay: (NewRelayListViewModel.Relay) -> Unit) {
                 modifier = Modifier
                     .size(35.dp)
                     .padding(horizontal = 5.dp),
-                tint = if (write) Color.Green else Color.Red
+                tint = if (write) Color.Green else MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
             )
         }
 
         Button(
             onClick = {
-                if (url.isNotBlank()) {
-                    val addedWSS = if (!url.startsWith("wss://")) "wss://$url" else url
-                    onNewRelay(NewRelayListViewModel.Relay(addedWSS, read, write))
+                if (url.isNotBlank() && url != "/") {
+                    var addedWSS = if (!url.startsWith("wss://") && !url.startsWith("ws://")) "wss://$url" else url
+                    if (url.endsWith("/")) addedWSS = addedWSS.dropLast(1)
+                    onNewRelay(RelaySetupInfo(addedWSS, read, write, feedTypes = FeedType.values().toSet()))
                     url = ""
                     write = true
                     read = true
@@ -351,7 +420,7 @@ fun EditableServerConfig(onNewRelay: (NewRelayListViewModel.Relay) -> Unit) {
             shape = RoundedCornerShape(20.dp),
             colors = ButtonDefaults
                 .buttonColors(
-                    backgroundColor = if (url.isNotBlank()) MaterialTheme.colors.primary else Color.Gray
+                    backgroundColor = if (url.isNotBlank()) MaterialTheme.colors.primary else MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
                 )
         ) {
             Text(text = "Add", color = Color.White)

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewRelayListViewModel.kt

@@ -1,94 +1,121 @@
 package com.vitorpamplona.amethyst.ui.actions
 
+import android.content.Context
 import androidx.lifecycle.ViewModel
+import com.vitorpamplona.amethyst.LocalPreferences
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.service.Constants
+import com.vitorpamplona.amethyst.model.RelaySetupInfo
+import com.vitorpamplona.amethyst.service.relays.FeedType
 import com.vitorpamplona.amethyst.service.relays.RelayPool
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
-import nostr.postr.events.ContactListEvent
 
 class NewRelayListViewModel: ViewModel() {
     private lateinit var account: Account
 
-    data class Relay(
-        val url: String,
-        val read: Boolean,
-        val write: Boolean,
-        val errorCount: Int = 0,
-        val downloadCount: Int = 0,
-        val uploadCount: Int = 0
-    )
-
-    private val _relays = MutableStateFlow<List<Relay>>(emptyList())
+    private val _relays = MutableStateFlow<List<RelaySetupInfo>>(emptyList())
     val relays = _relays.asStateFlow()
 
-    fun load(account: Account) {
+    fun load(account: Account, ctx: Context) {
         this.account = account
-        clear()
+        clear(ctx)
     }
 
-    fun create() {
+    fun create(ctx: Context) {
         relays.let {
-            account.sendNewRelayList(it.value.associate { it.url to ContactListEvent.ReadWrite(it.read, it.write) } )
+            account.saveRelayList(it.value)
+            LocalPreferences(ctx).saveToEncryptedStorage(account)
         }
 
-        clear()
+        clear(ctx)
     }
 
-    fun clear() {
+    fun clear(ctx: Context) {
         _relays.update {
             val relayFile = account.userProfile().relays
 
             if (relayFile != null)
                 relayFile.map {
                     val liveRelay = RelayPool.getRelay(it.key)
+                    val localInfoFeedTypes = account.localRelays.filter { localRelay -> localRelay.url == it.key }.firstOrNull()?.feedTypes ?: FeedType.values().toSet()
 
                     val errorCounter = liveRelay?.errorCounter ?: 0
                     val eventDownloadCounter = liveRelay?.eventDownloadCounter ?: 0
                     val eventUploadCounter = liveRelay?.eventUploadCounter ?: 0
 
-                    Relay(it.key, it.value.read, it.value.write, errorCounter, eventDownloadCounter, eventUploadCounter)
+                    RelaySetupInfo(it.key, it.value.read, it.value.write, errorCounter, eventDownloadCounter, eventUploadCounter, localInfoFeedTypes)
                 }.sortedBy { it.downloadCount }.reversed()
             else
-                Constants.defaultRelays.map {
+                account.localRelays.map {
                     val liveRelay = RelayPool.getRelay(it.url)
 
                     val errorCounter = liveRelay?.errorCounter ?: 0
                     val eventDownloadCounter = liveRelay?.eventDownloadCounter ?: 0
                     val eventUploadCounter = liveRelay?.eventUploadCounter ?: 0
 
-                    Relay(it.url, it.read, it.write, errorCounter, eventDownloadCounter, eventUploadCounter)
+                    RelaySetupInfo(it.url, it.read, it.write, errorCounter, eventDownloadCounter, eventUploadCounter, it.feedTypes)
                 }.sortedBy { it.downloadCount }.reversed()
         }
     }
 
-    fun addRelay(relay: Relay) {
-        if (relays.value.filter { it.url == relay.url }.isNotEmpty()) return
+    fun addRelay(relay: RelaySetupInfo) {
+        if (relays.value.any { it.url == relay.url }) return
 
         _relays.update {
             it.plus(relay)
         }
     }
 
-    fun deleteRelay(relay: Relay) {
+    fun deleteRelay(relay: RelaySetupInfo) {
         _relays.update {
             it.minus(relay)
         }
     }
 
-    fun toggleDownload(relay: Relay) {
+    fun toggleDownload(relay: RelaySetupInfo) {
         _relays.update {
             it.updated(relay, relay.copy(read = !relay.read))
         }
     }
 
-    fun toggleUpload(relay: Relay) {
+    fun toggleUpload(relay: RelaySetupInfo) {
         _relays.update {
             it.updated(relay, relay.copy(write = !relay.write))
         }
     }
+
+    fun toggleFollows(relay: RelaySetupInfo) {
+        val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.FOLLOWS)
+        _relays.update {
+            it.updated(relay, relay.copy(feedTypes = newTypes))
+        }
+    }
+
+    fun toggleMessages(relay: RelaySetupInfo) {
+        val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.PRIVATE_DMS)
+        _relays.update {
+            it.updated(relay, relay.copy(feedTypes = newTypes))
+        }
+    }
+
+    fun togglePublicChats(relay: RelaySetupInfo) {
+        val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.PUBLIC_CHATS)
+        _relays.update {
+            it.updated(relay, relay.copy(feedTypes = newTypes))
+        }
+    }
+
+    fun toggleGlobal(relay: RelaySetupInfo) {
+        val newTypes = togglePresenceInSet(relay.feedTypes, FeedType.GLOBAL)
+        _relays.update {
+            it.updated(relay, relay.copy( feedTypes = newTypes ))
+        }
+    }
 }
 
-fun <T> Iterable<T>.updated(old: T, new: T): List<T> = map { if (it == old) new else it }
+fun <T> Iterable<T>.updated(old: T, new: T): List<T> = map { if (it == old) new else it }
+
+fun <T> togglePresenceInSet(set: Set<T>, item: T): Set<T> {
+    return if (set.contains(item)) set.minus(item) else set.plus(item)
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataView.kt

@@ -205,6 +205,22 @@ fun NewUserMetadataView(onClose: () -> Unit, account: Account) {
                     singleLine = true
                 )
 
+                Spacer(modifier = Modifier.height(10.dp))
+
+                OutlinedTextField(
+                    label = { Text(text = "LN URL (outdated)") },
+                    modifier = Modifier.fillMaxWidth(),
+                    value = postViewModel.lnURL.value,
+                    onValueChange = { postViewModel.lnURL.value = it },
+                    placeholder = {
+                        Text(
+                            text = "LNURL...",
+                            color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
+                        )
+                    },
+                    singleLine = true
+                )
+
             }
         }
     }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/NewUserMetadataViewModel.kt

@@ -21,6 +21,7 @@ class NewUserMetadataViewModel: ViewModel() {
     val website = mutableStateOf("")
     val nip05 = mutableStateOf("")
     val lnAddress = mutableStateOf("")
+    val lnURL = mutableStateOf("")
 
     fun load(account: Account) {
         this.account = account
@@ -34,6 +35,7 @@ class NewUserMetadataViewModel: ViewModel() {
             website.value = it.info.website ?: ""
             nip05.value = it.info.nip05 ?: ""
             lnAddress.value = it.info.lud16 ?: ""
+            lnURL.value = it.info.lud06 ?: ""
         }
     }
 
@@ -57,6 +59,7 @@ class NewUserMetadataViewModel: ViewModel() {
         currentJson.put("about", about.value)
         currentJson.put("nip05", nip05.value)
         currentJson.put("lud16", lnAddress.value)
+        currentJson.put("lud06", lnURL.value)
 
         val writer = StringWriter()
         ObjectMapper().writeValue(writer, currentJson)
@@ -75,5 +78,6 @@ class NewUserMetadataViewModel: ViewModel() {
         website.value = ""
         nip05.value = ""
         lnAddress.value = ""
+        lnURL.value = ""
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/SaveToGallery.kt

@@ -0,0 +1,83 @@
+package com.vitorpamplona.amethyst.ui.actions
+
+import android.Manifest
+import android.os.Build
+import android.widget.Toast
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.unit.dp
+import com.google.accompanist.permissions.ExperimentalPermissionsApi
+import com.google.accompanist.permissions.isGranted
+import com.google.accompanist.permissions.rememberPermissionState
+import kotlinx.coroutines.launch
+
+/**
+ * A button to save the remote image to the gallery.
+ * May require a storage permission.
+ *
+ * @param url URL of the image
+ */
+@OptIn(ExperimentalPermissionsApi::class)
+@Composable
+fun SaveToGallery(url: String) {
+    val localContext = LocalContext.current
+    val scope = rememberCoroutineScope()
+
+    fun saveImage() {
+        ImageSaver.saveImage(
+            context = localContext,
+            url = url,
+            onSuccess = {
+                scope.launch {
+                    Toast.makeText(
+                        localContext,
+                        "Image saved to the gallery",
+                        Toast.LENGTH_SHORT
+                    )
+                        .show()
+                }
+            },
+            onError = {
+                scope.launch {
+                    Toast.makeText(
+                        localContext,
+                        "Failed to save the image",
+                        Toast.LENGTH_SHORT
+                    )
+                        .show()
+                }
+            }
+        )
+    }
+
+    val writeStoragePermissionState = rememberPermissionState(
+        Manifest.permission.WRITE_EXTERNAL_STORAGE
+    ) { isGranted ->
+        if (isGranted) {
+            saveImage()
+        }
+    }
+
+    Button(
+        onClick = {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q || writeStoragePermissionState.status.isGranted) {
+                saveImage()
+            } else {
+                writeStoragePermissionState.launchPermissionRequest()
+            }
+        },
+        shape = RoundedCornerShape(20.dp),
+        colors = ButtonDefaults
+            .buttonColors(
+                backgroundColor = Color.Gray
+            )
+    ) {
+        Text(text = "Save", color = Color.White)
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/UploadFromGallery.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.navigation
 
 import android.net.Uri
+import android.os.Build
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.layout.Box
@@ -24,9 +25,14 @@ import com.google.accompanist.permissions.rememberPermissionState
 @OptIn(ExperimentalPermissionsApi::class)
 @Composable
 fun UploadFromGallery(onImageChosen: (Uri) -> Unit) {
-    val cameraPermissionState = rememberPermissionState(
-        android.Manifest.permission.READ_MEDIA_IMAGES
-    )
+    val cameraPermissionState =
+        rememberPermissionState(
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                android.Manifest.permission.READ_MEDIA_IMAGES
+            } else {
+                android.Manifest.permission.READ_EXTERNAL_STORAGE
+            }
+        )
 
     if (cameraPermissionState.status.isGranted) {
         var showGallerySelect by remember { mutableStateOf(false) }

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/UrlUserTagTransformation.kt

@@ -12,6 +12,7 @@ import androidx.compose.ui.text.input.VisualTransformation
 import androidx.compose.ui.text.style.TextDecoration
 import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.decodePublicKey
+import com.vitorpamplona.amethyst.model.toHexKey
 import kotlin.math.roundToInt
 
 data class RangesChanges(val original: TextRange, val modified: TextRange)
@@ -43,7 +44,7 @@ fun buildAnnotatedStringWithUrlHighlighting(text: AnnotatedString, color: Color)
                 val endIndex = startIndex + keyB32.length
 
                 val key = decodePublicKey(keyB32.removePrefix("@"))
-                val user = LocalCache.getOrCreateUser(key)
+                val user = LocalCache.getOrCreateUser(key.toHexKey())
 
                 val newWord = "@${user.toBestDisplayName()}"
                 val startNew = builderAfter.toString().length

app/src/main/java/com/vitorpamplona/amethyst/ui/components/ClickableRoute.kt

@@ -0,0 +1,64 @@
+package com.vitorpamplona.amethyst.ui.components
+
+import androidx.compose.foundation.text.ClickableText
+import androidx.compose.material.LocalTextStyle
+import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.text.AnnotatedString
+import androidx.navigation.NavController
+import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.model.toByteArray
+import com.vitorpamplona.amethyst.model.toNote
+import com.vitorpamplona.amethyst.service.Nip19
+import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
+import com.vitorpamplona.amethyst.ui.note.toShortenHex
+import nostr.postr.toNpub
+
+@Composable
+fun ClickableRoute(
+  nip19: Nip19.Return,
+  navController: NavController
+) {
+  if (nip19.type == Nip19.Type.USER) {
+    val userBase = LocalCache.getOrCreateUser(nip19.hex)
+
+    val userState by userBase.liveMetadata.observeAsState()
+    val user = userState?.user ?: return
+
+    val route = "User/${nip19.hex}"
+    val text = user.toBestDisplayName()
+
+    ClickableText(
+      text = AnnotatedString("@${text} "),
+      onClick = { navController.navigate(route) },
+      style = LocalTextStyle.current.copy(color = MaterialTheme.colors.primary)
+    )
+  } else {
+    val noteBase = LocalCache.getOrCreateNote(nip19.hex)
+    val noteState by noteBase.live.observeAsState()
+    val note = noteState?.note ?: return
+
+    if (note.event is ChannelCreateEvent) {
+      ClickableText(
+        text = AnnotatedString("@${note.idDisplayNote} "),
+        onClick = { navController.navigate("Channel/${nip19.hex}") },
+        style = LocalTextStyle.current.copy(color = MaterialTheme.colors.primary)
+      )
+    } else if (note.channel != null) {
+      ClickableText(
+        text = AnnotatedString("@${note.channel?.toBestDisplayName()} "),
+        onClick = { navController.navigate("Channel/${note.channel?.idHex}") },
+        style = LocalTextStyle.current.copy(color = MaterialTheme.colors.primary)
+      )
+    } else {
+      ClickableText(
+        text = AnnotatedString("@${note.idDisplayNote} "),
+        onClick = { navController.navigate("Note/${nip19.hex}") },
+        style = LocalTextStyle.current.copy(color = MaterialTheme.colors.primary)
+      )
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/components/ClickableUserTag.kt

@@ -15,7 +15,7 @@ fun ClickableUserTag(
   user: User,
   navController: NavController
 ) {
-  val innerUserState by user.live.observeAsState()
+  val innerUserState by user.liveMetadata.observeAsState()
   ClickableText(
     text = AnnotatedString("@${innerUserState?.user?.toBestDisplayName()} "),
     onClick = { navController.navigate("User/${innerUserState?.user?.pubkeyHex}") },

app/src/main/java/com/vitorpamplona/amethyst/ui/components/ExpandableRichTextViewer.kt

@@ -0,0 +1,70 @@
+package com.vitorpamplona.amethyst.ui.components
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavController
+
+@Composable
+fun ExpandableRichTextViewer(
+  content: String,
+  canPreview: Boolean,
+  tags: List<List<String>>?,
+  navController: NavController
+) {
+  var showFullText by remember { mutableStateOf(false) }
+
+  val text = if (showFullText) content else content.take(350)
+
+  Box(contentAlignment = Alignment.BottomCenter) {
+    RichTextViewer(text, canPreview, tags, navController)
+
+    if (content.length > 350 && !showFullText) {
+      Row(
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.Center,
+        modifier = Modifier
+          .fillMaxWidth()
+          .background(
+            brush = Brush.verticalGradient(
+              colors = listOf(
+                MaterialTheme.colors.background.copy(alpha = 0f),
+                MaterialTheme.colors.background
+              )
+            )
+          )
+      ) {
+        Button(
+          modifier = Modifier.padding(top = 10.dp),
+          onClick = { showFullText = !showFullText },
+          shape = RoundedCornerShape(20.dp),
+          colors = ButtonDefaults.buttonColors(
+            backgroundColor = MaterialTheme.colors.primary
+          ),
+          contentPadding = PaddingValues(vertical = 6.dp, horizontal = 16.dp)
+        ) {
+          Text(text = "Show More", color = Color.White)
+        }
+      }
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/components/InvoicePreview.kt

@@ -9,13 +9,20 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.Button
 import androidx.compose.material.ButtonDefaults
 import androidx.compose.material.Divider
 import androidx.compose.material.Icon
+import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
+import androidx.compose.material.OutlinedTextField
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -23,11 +30,15 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextDirection
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.core.content.ContextCompat.startActivity
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.lnurl.LnInvoiceUtil
+import java.text.NumberFormat
 
 @Composable
 fun InvoicePreview(lnInvoice: String) {
@@ -78,20 +89,21 @@ fun InvoicePreview(lnInvoice: String) {
 
       amount?.let {
         Text(
-          text = "${amount.toInt()} sats",
+          text = "${NumberFormat.getInstance().format(amount)} sats",
           fontSize = 25.sp,
           fontWeight = FontWeight.W500,
           modifier = Modifier
             .fillMaxWidth()
             .padding(vertical = 10.dp),
         )
-      } 
+      }
+
 
       Button(
         modifier = Modifier.fillMaxWidth().padding(vertical = 10.dp),
         onClick = {
           runCatching {
-            val intent = Intent(Intent.ACTION_VIEW, Uri.parse("lightning://$lnInvoice"))
+            val intent = Intent(Intent.ACTION_VIEW, Uri.parse("lightning:$lnInvoice"))
             startActivity(context, intent, null)
           }
         },

app/src/main/java/com/vitorpamplona/amethyst/ui/components/InvoiceRequest.kt

@@ -0,0 +1,144 @@
+package com.vitorpamplona.amethyst.ui.components
+
+import android.content.Intent
+import android.net.Uri
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.Divider
+import androidx.compose.material.Icon
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.OutlinedTextField
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.core.content.ContextCompat.startActivity
+import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.lnurl.LightningAddressResolver
+
+@Composable
+fun InvoiceRequest(lud16: String, onClose: () -> Unit ) {
+  val context = LocalContext.current
+
+  Column(modifier = Modifier
+    .fillMaxWidth()
+    .padding(start = 30.dp, end = 30.dp)
+    .clip(shape = RoundedCornerShape(10.dp))
+    .border(1.dp, MaterialTheme.colors.onSurface.copy(alpha = 0.12f), RoundedCornerShape(15.dp))
+  ) {
+
+    Column(
+      modifier = Modifier
+        .fillMaxWidth()
+        .padding(30.dp)
+    ) {
+
+      Row(
+        verticalAlignment = Alignment.CenterVertically,
+        modifier = Modifier
+          .fillMaxWidth()
+          .padding(bottom = 10.dp)
+      ) {
+        Icon(
+          painter = painterResource(R.drawable.lightning),
+          null,
+          modifier = Modifier.size(20.dp),
+          tint = Color.Unspecified
+        )
+
+        Text(
+          text = "Lightning Tips",
+          fontSize = 20.sp,
+          fontWeight = FontWeight.W500,
+          modifier = Modifier.padding(start = 10.dp)
+        )
+      }
+
+      Divider()
+
+      var message by remember { mutableStateOf("") }
+      var amount by remember { mutableStateOf(1000L) }
+
+      OutlinedTextField(
+        label = { Text(text = "Note to Receiver") },
+        modifier = Modifier.fillMaxWidth(),
+        value = message,
+        onValueChange = { message = it },
+        placeholder = {
+          Text(
+            text = "Thank you so much!",
+            color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
+          )
+        },
+        keyboardOptions = KeyboardOptions.Default.copy(
+          capitalization = KeyboardCapitalization.Sentences
+        ),
+        singleLine = true
+      )
+
+      OutlinedTextField(
+        label = { Text(text = "Amount in Sats") },
+        modifier = Modifier.fillMaxWidth(),
+        value = amount.toString(),
+        onValueChange = {
+          runCatching {
+            if (it.isEmpty())
+              amount = 0
+            else
+              amount = it.toLong()
+          }
+        },
+        placeholder = {
+          Text(
+            text = "1000",
+            color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
+          )
+        },
+        keyboardOptions = KeyboardOptions.Default.copy(
+          keyboardType = KeyboardType.Number
+        ),
+        singleLine = true
+      )
+
+      Button(
+        modifier = Modifier.fillMaxWidth().padding(vertical = 10.dp),
+        onClick = {
+          LightningAddressResolver().lnAddressInvoice(lud16, amount * 1000, message) {
+            runCatching {
+              val intent = Intent(Intent.ACTION_VIEW, Uri.parse("lightning:$it"))
+              startActivity(context, intent, null)
+            }
+            onClose()
+          }
+        },
+        shape = RoundedCornerShape(15.dp),
+        colors = ButtonDefaults.buttonColors(
+          backgroundColor = MaterialTheme.colors.primary
+        )
+      ) {
+        Text(text = "Send Sats", color = Color.White, fontSize = 20.sp)
+      }
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/components/RichTextViewer.kt

@@ -1,23 +1,21 @@
 package com.vitorpamplona.amethyst.ui.components
 
 import android.util.Patterns
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.padding
-import androidx.compose.material.LocalTextStyle
-import androidx.compose.material.Text
-import androidx.compose.runtime.Composable
+import androidx.compose.animation.animateContentSize
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.*
+import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.style.TextDirection
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import com.google.accompanist.flowlayout.FlowRow
 import com.vitorpamplona.amethyst.lnurl.LnInvoiceUtil
 import com.vitorpamplona.amethyst.model.LocalCache
-import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.toByteArray
+import com.vitorpamplona.amethyst.model.toNote
+import com.vitorpamplona.amethyst.service.Nip19
 import com.vitorpamplona.amethyst.ui.note.toShortenHex
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import nostr.postr.toNpub
 import java.net.MalformedURLException
 import java.net.URISyntaxException
 import java.net.URL
@@ -44,47 +42,115 @@ fun isValidURL(url: String?): Boolean {
 }
 
 @Composable
-fun RichTextViewer(content: String, tags: List<List<String>>?, navController: NavController) {
-  Column(modifier = Modifier.padding(top = 5.dp)) {
+fun RichTextViewer(
+  content: String,
+  canPreview: Boolean,
+  tags: List<List<String>>?,
+  navController: NavController
+) {
+  Column(
+    Modifier
+      .fillMaxWidth()
+      .animateContentSize()) {
     // FlowRow doesn't work well with paragraphs. So we need to split them
     content.split('\n').forEach { paragraph ->
 
       FlowRow() {
         paragraph.split(' ').forEach { word: String ->
-          // Explicit URL
-          val lnInvoice = LnInvoiceUtil.findInvoice(word)
-          if (lnInvoice != null) {
-            InvoicePreview(lnInvoice)
-          } else if (isValidURL(word)) {
-            val removedParamsFromUrl = word.split("?")[0].toLowerCase()
-            if (imageExtension.matcher(removedParamsFromUrl).matches()) {
-              ZoomableImageView(word)
-            } else if (videoExtension.matcher(removedParamsFromUrl).matches()) {
-              VideoView(word)
+
+          if (canPreview) {
+            // Explicit URL
+            val lnInvoice = LnInvoiceUtil.findInvoice(word)
+            if (lnInvoice != null) {
+              InvoicePreview(lnInvoice)
+            } else if (isValidURL(word)) {
+              val removedParamsFromUrl = word.split("?")[0].toLowerCase()
+              if (imageExtension.matcher(removedParamsFromUrl).matches()) {
+                ZoomableImageView(word)
+              } else if (videoExtension.matcher(removedParamsFromUrl).matches()) {
+                VideoView(word)
+              } else {
+                UrlPreview(word, word)
+              }
+            } else if (Patterns.EMAIL_ADDRESS.matcher(word).matches()) {
+              ClickableEmail(word)
+            } else if (Patterns.PHONE.matcher(word).matches() && word.length > 6) {
+              ClickablePhone(word)
+            } else if (noProtocolUrlValidator.matcher(word).matches()) {
+              UrlPreview("https://$word", word)
+            } else if (tagIndex.matcher(word).matches() && tags != null) {
+              TagLink(word, tags, navController)
+            } else if (isBechLink(word)) {
+              BechLink(word, navController)
             } else {
-              UrlPreview(word, word)
+              Text(
+                text = "$word ",
+                style = LocalTextStyle.current.copy(textDirection = TextDirection.Content),
+              )
             }
-          } else if (Patterns.EMAIL_ADDRESS.matcher(word).matches()) {
-            ClickableEmail(word)
-          } else if (Patterns.PHONE.matcher(word).matches() && word.length > 6) {
-            ClickablePhone(word)
-          } else if (noProtocolUrlValidator.matcher(word).matches()) {
-            UrlPreview("https://$word", word)
-          } else if (tagIndex.matcher(word).matches() && tags != null) {
-            TagLink(word, tags, navController)
           } else {
-            Text(
-              text = "$word ",
-              style = LocalTextStyle.current.copy(textDirection = TextDirection.Content),
-            )
+            if (isValidURL(word)) {
+              ClickableUrl("$word ", word)
+            } else if (Patterns.EMAIL_ADDRESS.matcher(word).matches()) {
+              ClickableEmail(word)
+            } else if (Patterns.PHONE.matcher(word).matches() && word.length > 6) {
+              ClickablePhone(word)
+            } else if (noProtocolUrlValidator.matcher(word).matches()) {
+              ClickableUrl(word, "https://$word")
+            } else if (tagIndex.matcher(word).matches() && tags != null) {
+              TagLink(word, tags, navController)
+            } else if (isBechLink(word)) {
+              BechLink(word, navController)
+            } else {
+              Text(
+                text = "$word ",
+                style = LocalTextStyle.current.copy(textDirection = TextDirection.Content),
+              )
+            }
           }
         }
       }
-
     }
   }
 }
 
+
+fun isBechLink(word: String): Boolean {
+  return word.startsWith("nostr:", true)
+    || word.startsWith("npub1", true)
+    || word.startsWith("note1", true)
+    || word.startsWith("nprofile1", true)
+    || word.startsWith("nevent1", true)
+    || word.startsWith("@npub1", true)
+    || word.startsWith("@note1", true)
+    || word.startsWith("@nprofile1", true)
+    || word.startsWith("@nevent1", true)
+}
+
+@Composable
+fun BechLink(word: String, navController: NavController) {
+  val uri = if (word.startsWith("nostr", true)) {
+    word
+  } else if (word.startsWith("@")) {
+    word.replaceFirst("@", "nostr:")
+  } else {
+    "nostr:${word}"
+  }
+
+  val nip19Route = try {
+    Nip19().uriToRoute(uri)
+  } catch (e: Exception) {
+    null
+  }
+
+  if (nip19Route == null) {
+    Text(text = "$word ")
+  } else {
+    ClickableRoute(nip19Route, navController)
+  }
+}
+
+
 @Composable
 fun TagLink(word: String, tags: List<List<String>>, navController: NavController) {
   val matcher = tagIndex.matcher(word)
@@ -107,17 +173,18 @@ fun TagLink(word: String, tags: List<List<String>>, navController: NavController
       if (user != null) {
         ClickableUserTag(user, navController)
       } else {
-        Text(text = "${tags[index][1].toShortenHex()} ")
+        Text(text = "${tags[index][1].toByteArray().toNpub().toShortenHex()} ")
       }
     } else if (tags[index][0] == "e") {
       val note = LocalCache.notes[tags[index][1]]
       if (note != null) {
         ClickableNoteTag(note, navController)
       } else {
-        Text(text = "${tags[index][1].toShortenHex()} ")
+        Text(text = "${tags[index][1].toByteArray().toNote().toShortenHex()} ")
       }
     } else
       Text(text = "$word ")
   }
 }
 
+

app/src/main/java/com/vitorpamplona/amethyst/ui/components/TranslateableRichTextViewer.kt

@@ -0,0 +1,151 @@
+package com.vitorpamplona.amethyst.ui.components
+
+import android.content.res.Resources
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.text.ClickableText
+import androidx.compose.material.Divider
+import androidx.compose.material.DropdownMenu
+import androidx.compose.material.DropdownMenuItem
+import androidx.compose.material.LocalTextStyle
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.SpanStyle
+import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.text.withStyle
+import androidx.compose.ui.unit.dp
+import androidx.core.os.ConfigurationCompat
+import androidx.navigation.NavController
+import com.vitorpamplona.amethyst.service.lang.LanguageTranslatorService
+import com.vitorpamplona.amethyst.service.lang.ResultOrError
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import java.util.Locale
+
+@Composable
+fun TranslateableRichTextViewer(
+  content: String,
+  canPreview: Boolean,
+  tags: List<List<String>>?,
+  accountViewModel: AccountViewModel,
+  navController: NavController
+) {
+  val translatedTextState = remember {
+    mutableStateOf(ResultOrError(content, null, null, null))
+  }
+
+  var showOriginal by remember { mutableStateOf(false) }
+  var langSettingsPopupExpanded by remember { mutableStateOf(false) }
+
+  val context = LocalContext.current
+
+  val accountState by accountViewModel.accountLanguagesLiveData.observeAsState()
+  val account = accountState?.account ?: return
+
+  LaunchedEffect(accountState) {
+    LanguageTranslatorService.autoTranslate(content, account.dontTranslateFrom, account.translateTo)
+      .addOnCompleteListener { task ->
+        if (task.isSuccessful) {
+          translatedTextState.value = task.result
+        } else {
+          translatedTextState.value = ResultOrError(content, null, null, null)
+        }
+      }
+  }
+
+  val toBeViewed = if (showOriginal) content else translatedTextState.value.result ?: content
+
+  Column(modifier = Modifier.padding(top = 5.dp)) {
+    ExpandableRichTextViewer(
+      toBeViewed,
+      canPreview,
+      tags,
+      navController
+    )
+
+    val target = translatedTextState.value.targetLang
+    val source = translatedTextState.value.sourceLang
+
+    if (source != null && target != null) {
+      if (source != target) {
+        Row(modifier = Modifier.fillMaxWidth().padding(top = 5.dp)) {
+          val clickableTextStyle =
+            SpanStyle(color = MaterialTheme.colors.primary.copy(alpha = 0.52f))
+
+          val annotatedTranslationString = buildAnnotatedString {
+            withStyle(clickableTextStyle) {
+              pushStringAnnotation("langSettings", true.toString())
+              append("Auto")
+            }
+
+            append("-translated from ")
+
+            withStyle(clickableTextStyle) {
+              pushStringAnnotation("showOriginal", true.toString())
+              append(Locale(source).displayName)
+            }
+
+            append(" to ")
+
+            withStyle(clickableTextStyle) {
+              pushStringAnnotation("showOriginal", false.toString())
+              append(Locale(target).displayName)
+            }
+          }
+
+          ClickableText(
+            text = annotatedTranslationString,
+            style = LocalTextStyle.current.copy(color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)),
+            overflow = TextOverflow.Visible,
+            maxLines = 3
+          ) { spanOffset ->
+            annotatedTranslationString.getStringAnnotations(spanOffset, spanOffset)
+              .firstOrNull()
+              ?.also { span ->
+                if (span.tag == "showOriginal")
+                  showOriginal = span.item.toBoolean()
+                else
+                  langSettingsPopupExpanded = !langSettingsPopupExpanded
+              }
+          }
+
+          DropdownMenu(
+            expanded = langSettingsPopupExpanded,
+            onDismissRequest = { langSettingsPopupExpanded = false }
+          ) {
+            DropdownMenuItem(onClick = {
+              accountViewModel.dontTranslateFrom(source, context)
+              langSettingsPopupExpanded = false
+            }) {
+              Text("Never translate from ${Locale(source).displayName}")
+            }
+            Divider()
+            val languageList =
+              ConfigurationCompat.getLocales(Resources.getSystem().getConfiguration())
+            for (i in 0 until languageList.size()) {
+              languageList.get(i)?.let { lang ->
+                DropdownMenuItem(onClick = {
+                  accountViewModel.translateTo(lang, context)
+                  langSettingsPopupExpanded = false
+                }) {
+                  Text("Always translate to ${lang.displayName}")
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/components/UrlPreview.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.components
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -32,7 +33,7 @@ fun UrlPreview(url: String, urlText: String, showUrlIfError: Boolean = true) {
     })
   }
 
-  Crossfade(targetState = urlPreviewState) { state ->
+  Crossfade(targetState = urlPreviewState, animationSpec = tween(durationMillis = 100)) { state ->
     when (state) {
       is UrlPreviewState.Loaded -> {
         UrlPreviewCard(url, state.previewInfo)

app/src/main/java/com/vitorpamplona/amethyst/ui/components/VideoView.kt

@@ -5,6 +5,7 @@ import android.widget.FrameLayout
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.viewinterop.AndroidView
@@ -19,14 +20,17 @@ import com.google.android.exoplayer2.ui.StyledPlayerView
 fun VideoView(videoUri: String) {
   val context = LocalContext.current
 
-  val exoPlayer = ExoPlayer.Builder(LocalContext.current).build().apply {
-    repeatMode = Player.REPEAT_MODE_ALL
-    videoScalingMode = C.VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
-    setMediaItem(MediaItem.fromUri(videoUri))
-    prepare()
+  val exoPlayer = remember {
+    ExoPlayer.Builder(context).build().apply {
+      repeatMode = Player.REPEAT_MODE_ALL
+      videoScalingMode = C.VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
+    }
   }
 
   DisposableEffect(exoPlayer) {
+    exoPlayer.setMediaItem(MediaItem.fromUri(videoUri))
+    exoPlayer.prepare()
+
     onDispose {
       exoPlayer.release()
     }

app/src/main/java/com/vitorpamplona/amethyst/ui/components/ZoomableImageView.kt

@@ -2,35 +2,26 @@ package com.vitorpamplona.amethyst.ui.components
 
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.border
-import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
-import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
+import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.ExperimentalComposeUiApi
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Dialog
 import androidx.compose.ui.window.DialogProperties
 import coil.compose.AsyncImage
 import com.vitorpamplona.amethyst.ui.actions.CloseButton
-import nostr.postr.toNpub
+import com.vitorpamplona.amethyst.ui.actions.SaveToGallery
 
 @Composable
 @OptIn(ExperimentalComposeUiApi::class, ExperimentalFoundationApi::class)
@@ -75,6 +66,8 @@ fun ZoomableImageView(word: String) {
             CloseButton(onCancel = {
               dialogOpen = false
             })
+
+            SaveToGallery(url = word)
           }
 
           ZoomableAsyncImage(word)

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppTopBar.kt

@@ -1,7 +1,9 @@
 package com.vitorpamplona.amethyst.ui.navigation
 
 import android.util.Log
+import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
@@ -36,6 +38,7 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavHostController
@@ -72,12 +75,13 @@ fun AppTopBar(navController: NavHostController, scaffoldState: ScaffoldState, ac
     }
 }
 
+
 @Composable
 fun MainTopBar(scaffoldState: ScaffoldState, accountViewModel: AccountViewModel) {
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
-    val accountUserState by account.userProfile().live.observeAsState()
+    val accountUserState by account.userProfile().liveMetadata.observeAsState()
     val accountUser = accountUserState?.user
 
     val relayViewModel: RelayPoolViewModel = viewModel { RelayPoolViewModel() }
@@ -104,19 +108,20 @@ fun MainTopBar(scaffoldState: ScaffoldState, accountViewModel: AccountViewModel)
                     modifier = Modifier.fillMaxWidth(),
                     horizontalAlignment = Alignment.CenterHorizontally
                 ) {
-                    Box() {
+                    Box(Modifier) {
                         Column(
                             modifier = Modifier
-                                .fillMaxWidth()
+                                .fillMaxWidth().fillMaxHeight()
                                 .padding(start = 0.dp, end = 20.dp),
-                            horizontalAlignment = Alignment.CenterHorizontally
+                            horizontalAlignment = Alignment.CenterHorizontally,
+                            verticalArrangement = Arrangement.Center
                         ) {
                             IconButton(
                                 onClick = {
                                     Client.allSubscriptions().map {
                                         "${it} ${
                                             Client.getSubscriptionFilters(it)
-                                                .joinToString { it.toJson() }
+                                                .joinToString { it.filter.toJson() }
                                         }"
                                     }.forEach {
                                         Log.d("CURRENT FILTERS", it)
@@ -203,7 +208,7 @@ fun MainTopBar(scaffoldState: ScaffoldState, accountViewModel: AccountViewModel)
             },
             actions = {
                 IconButton(
-                    onClick = {}, modifier = Modifier
+                    onClick = { wantsToEditRelays = true }, modifier = Modifier
                 ) {
                     Icon(
                         painter = painterResource(R.drawable.ic_trends),

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/DrawerContent.kt

@@ -1,5 +1,6 @@
 package com.vitorpamplona.amethyst.ui.navigation
 
+import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
@@ -7,6 +8,9 @@ import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.defaultMinSize
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
@@ -16,6 +20,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.Divider
 import androidx.compose.material.Icon
+import androidx.compose.material.IconButton
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.ScaffoldState
 import androidx.compose.material.Surface
@@ -23,7 +28,10 @@ import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -34,15 +42,35 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.font.FontWeight.Companion.W500
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
 import androidx.navigation.NavController
 import androidx.navigation.NavHostController
 import coil.compose.AsyncImage
 import coil.compose.rememberAsyncImagePainter
+import com.google.zxing.EncodeHintType
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
+import com.google.zxing.qrcode.encoder.Encoder
+import com.google.zxing.qrcode.encoder.QRCode
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.ui.actions.CloseButton
+import com.vitorpamplona.amethyst.ui.components.ZoomableAsyncImage
 import com.vitorpamplona.amethyst.ui.screen.AccountStateViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import kotlinx.coroutines.launch
+import nostr.postr.toNpub
+
+import androidx.compose.ui.geometry.CornerRadius
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Rect
+import androidx.compose.ui.geometry.RoundRect
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.drawscope.DrawScope
+import com.google.zxing.qrcode.encoder.ByteMatrix
+
+import androidx.compose.ui.graphics.Path
+import androidx.compose.ui.graphics.PathFillType
 
 @Composable
 fun DrawerContent(navController: NavHostController,
@@ -53,52 +81,26 @@ fun DrawerContent(navController: NavHostController,
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
-    val accountUserState by account.userProfile().live.observeAsState()
-    val accountUser = accountUserState?.user
-
     Surface(
         modifier = Modifier.fillMaxWidth(),
         color = MaterialTheme.colors.background
     ) {
         Column() {
-            Box {
-                val banner = accountUser?.info?.banner
-                if (banner != null && banner.isNotBlank()) {
-                    AsyncImage(
-                        model = banner,
-                        contentDescription = "Profile Image",
-                        contentScale = ContentScale.FillWidth,
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .height(150.dp)
-                    )
-                } else {
-                    Image(
-                        painter = painterResource(R.drawable.profile_banner),
-                        contentDescription = "Profile Banner",
-                        contentScale = ContentScale.FillWidth,
-                        modifier = Modifier
-                            .fillMaxWidth()
-                            .height(150.dp)
-                    )
-                }
-
-                ProfileContent(
-                    accountUser,
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(horizontal = 25.dp)
-                        .padding(top = 100.dp),
-                    scaffoldState,
-                    navController
-                )
-            }
+            ProfileContent(
+                account.userProfile(),
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 25.dp)
+                    .padding(top = 100.dp),
+                scaffoldState,
+                navController
+            )
             Divider(
                 thickness = 0.25.dp,
                 modifier = Modifier.padding(top = 20.dp)
             )
             ListContent(
-                accountUser,
+                account.userProfile(),
                 navController,
                 scaffoldState,
                 modifier = Modifier
@@ -106,49 +108,80 @@ fun DrawerContent(navController: NavHostController,
                     .weight(1F),
                 accountStateViewModel
             )
+
+            BottomContent(account.userProfile(), scaffoldState, navController)
         }
     }
 }
 
 @Composable
-fun ProfileContent(accountUser: User?, modifier: Modifier = Modifier, scaffoldState: ScaffoldState, navController: NavController) {
+fun ProfileContent(baseAccountUser: User, modifier: Modifier = Modifier, scaffoldState: ScaffoldState, navController: NavController) {
     val coroutineScope = rememberCoroutineScope()
 
-    Column(modifier = modifier) {
-        AsyncImage(
-            model = accountUser?.profilePicture() ?: "https://robohash.org/ohno.png",
-            contentDescription = "Profile Image",
-            placeholder = rememberAsyncImagePainter("https://robohash.org/${accountUser?.pubkeyHex}.png"),
-            modifier = Modifier
-                .width(100.dp)
-                .height(100.dp)
-                .clip(shape = CircleShape)
-                .border(3.dp, MaterialTheme.colors.background, CircleShape)
-                .background(MaterialTheme.colors.background)
-                .clickable(onClick = {
-                    accountUser?.let {
-                        navController.navigate("User/${it.pubkeyHex}")
-                    }
-                    coroutineScope.launch {
-                        scaffoldState.drawerState.close()
-                    }
-                })
-        )
-        Text(
-            accountUser?.bestDisplayName() ?: "",
-            modifier = Modifier.padding(top = 7.dp),
-            fontWeight = FontWeight.Bold,
-            fontSize = 18.sp
-        )
-        Text(" @${accountUser?.bestUsername()}", color = Color.LightGray)
-        Row(modifier = Modifier.padding(top = 15.dp)) {
-            Row() {
-                Text("${accountUser?.follows?.size ?: "--"}", fontWeight = FontWeight.Bold)
-                Text(" Following")
-            }
-            Row(modifier = Modifier.padding(start = 10.dp)) {
-                Text("${accountUser?.followers?.size ?: "--"}", fontWeight = FontWeight.Bold)
-                Text(" Followers")
+    val accountUserState by baseAccountUser.liveMetadata.observeAsState()
+    val accountUser = accountUserState?.user ?: return
+
+    val accountUserFollowsState by baseAccountUser.liveFollows.observeAsState()
+    val accountUserFollows = accountUserFollowsState?.user ?: return
+
+    Box {
+        val banner = accountUser.info.banner
+        if (banner != null && banner.isNotBlank()) {
+            AsyncImage(
+                model = banner,
+                contentDescription = "Profile Image",
+                contentScale = ContentScale.FillWidth,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(150.dp)
+            )
+        } else {
+            Image(
+                painter = painterResource(R.drawable.profile_banner),
+                contentDescription = "Profile Banner",
+                contentScale = ContentScale.FillWidth,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(150.dp)
+            )
+        }
+
+        Column(modifier = modifier) {
+            AsyncImage(
+                model = accountUser.profilePicture(),
+                contentDescription = "Profile Image",
+                placeholder = rememberAsyncImagePainter("https://robohash.org/${accountUser.pubkeyHex}.png"),
+                modifier = Modifier
+                    .width(100.dp)
+                    .height(100.dp)
+                    .clip(shape = CircleShape)
+                    .border(3.dp, MaterialTheme.colors.background, CircleShape)
+                    .background(MaterialTheme.colors.background)
+                    .clickable(onClick = {
+                        accountUser.let {
+                            navController.navigate("User/${it.pubkeyHex}")
+                        }
+                        coroutineScope.launch {
+                            scaffoldState.drawerState.close()
+                        }
+                    })
+            )
+            Text(
+                accountUser.bestDisplayName() ?: "",
+                modifier = Modifier.padding(top = 7.dp),
+                fontWeight = FontWeight.Bold,
+                fontSize = 18.sp
+            )
+            Text(" @${accountUser.bestUsername()}", color = Color.LightGray)
+            Row(modifier = Modifier.padding(top = 15.dp)) {
+                Row() {
+                    Text("${accountUserFollows.follows?.size ?: "--"}", fontWeight = FontWeight.Bold)
+                    Text(" Following")
+                }
+                Row(modifier = Modifier.padding(start = 10.dp)) {
+                    Text("${accountUserFollows.followers?.size ?: "--"}", fontWeight = FontWeight.Bold)
+                    Text(" Followers")
+                }
             }
         }
     }
@@ -239,5 +272,73 @@ fun NavigationRow(navController: NavHostController, scaffoldState: ScaffoldState
             )
         }
     }
+}
+
+@Composable
+fun BottomContent(user: User, scaffoldState: ScaffoldState, navController: NavController) {
+    val coroutineScope = rememberCoroutineScope()
+
+    // store the dialog open or close state
+    var dialogOpen by remember {
+        mutableStateOf(false)
+    }
+
+    Column(modifier = Modifier) {
+        Divider(
+            modifier = Modifier.padding(top = 15.dp),
+            thickness = 0.25.dp
+        )
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 15.dp),
+        ) {
+            /*
+            IconButton(
+                onClick = {
+                    when (AppCompatDelegate.getDefaultNightMode()) {
+                        AppCompatDelegate.MODE_NIGHT_NO -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
+                        AppCompatDelegate.MODE_NIGHT_YES -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO)
+                        else -> AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
+                    }
+                }
+            ) {
+                Icon(
+                    painter = painterResource(R.drawable.ic_theme),
+                    null,
+                    modifier = Modifier.size(24.dp),
+                    tint = MaterialTheme.colors.primary
+                )
+            }*/
+            Box(modifier = Modifier.weight(1F))
+            IconButton(onClick = {
+                dialogOpen = true
+                coroutineScope.launch {
+                    scaffoldState.drawerState.close()
+                }
+            }) {
+                Icon(
+                    painter = painterResource(R.drawable.ic_qrcode),
+                    null,
+                    modifier = Modifier.size(24.dp),
+                    tint = MaterialTheme.colors.primary
+                )
+            }
+        }
+    }
+
+    if (dialogOpen) {
+        ShowQRDialog(user,
+            onScan = {
+                dialogOpen = false
+                coroutineScope.launch {
+                    scaffoldState.drawerState.close()
+                }
+                navController.navigate(it)
+            },
+            onClose = { dialogOpen = false }
+        )
+    }
+}
+
 
-}

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/Routes.kt

@@ -115,7 +115,7 @@ private fun homeHasNewItems(cache: NotificationCache): Boolean {
     val homeFeed = NostrHomeDataSource.feed().take(100)
 
     val hasNewInFollows = homeFeed.filter {
-        it.event is RepostEvent || it.replyTo == null || it.replyTo?.size == 0
+        it.isNewThread()
     }.filter {
         (it.event?.createdAt ?: 0) > lastTimeFollows
     }.isNotEmpty()
@@ -138,7 +138,7 @@ private fun messagesHasNewItems(cache: NotificationCache): Boolean {
     return NostrChatroomListDataSource.feed().take(100).filter {
         // only for known sources
         val me = NostrChatroomListDataSource.account.userProfile()
-        it.channel != null || me.hasSentMessagesTo(it.author)
+        it.channel == null && me.hasSentMessagesTo(it.author) && it.author != me
     }.filter {
         val lastTime = if (it.channel != null) {
             cache.load("Channel/${it.channel!!.idHex}", context)

app/src/main/java/com/vitorpamplona/amethyst/ui/note/BlankNote.kt

@@ -1,15 +1,24 @@
 package com.vitorpamplona.amethyst.ui.note
 
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
 import androidx.compose.material.Divider
+import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
+import androidx.navigation.NavController
+import com.google.accompanist.flowlayout.FlowRow
+import com.vitorpamplona.amethyst.model.Note
+import com.vitorpamplona.amethyst.model.User
 
 @Composable
 fun BlankNote(modifier: Modifier = Modifier, isQuote: Boolean = false) {
@@ -43,7 +52,7 @@ fun BlankNote(modifier: Modifier = Modifier, isQuote: Boolean = false) {
 
 
 @Composable
-fun HiddenNote(modifier: Modifier = Modifier, isQuote: Boolean = false) {
+fun HiddenNote(reports: Set<Note>, loggedIn: User, modifier: Modifier = Modifier, isQuote: Boolean = false, navController: NavController, onClick: () -> Unit) {
   Column(modifier = modifier) {
     Row(modifier = Modifier.padding(horizontal = if (!isQuote) 12.dp else 6.dp)) {
       Column(modifier = Modifier.padding(start = if (!isQuote) 10.dp else 5.dp)) {
@@ -56,11 +65,35 @@ fun HiddenNote(modifier: Modifier = Modifier, isQuote: Boolean = false) {
           ),
           verticalAlignment = Alignment.CenterVertically
         ) {
-          Text(
-            text = "Post was flagged as inappropriate",
-            modifier = Modifier.padding(30.dp),
-            color = Color.Gray,
-          )
+          Column(horizontalAlignment = Alignment.CenterHorizontally, modifier = Modifier.padding(30.dp)) {
+            Text(
+              text = "Post was flagged as inappropriate by",
+              color = Color.Gray,
+            )
+            FlowRow(modifier = Modifier.padding(top = 10.dp)) {
+              reports.forEach {
+                NoteAuthorPicture(
+                  note = it,
+                  navController = navController,
+                  userAccount = loggedIn,
+                  size = 35.dp
+                )
+              }
+            }
+
+            Button(
+              modifier = Modifier.padding(top = 10.dp),
+              onClick = onClick,
+              shape = RoundedCornerShape(20.dp),
+              colors = ButtonDefaults
+                .buttonColors(
+                  backgroundColor = MaterialTheme.colors.primary
+                ),
+              contentPadding = PaddingValues(vertical = 6.dp, horizontal = 16.dp)
+            ) {
+              Text(text = "Show Anyway", color = Color.White)
+            }
+          }
         }
 
         Divider(

app/src/main/java/com/vitorpamplona/amethyst/ui/note/BoostSetCompose.kt

@@ -76,19 +76,12 @@ fun BoostSetCompose(likeSetCard: BoostSetCard, isInnerNote: Boolean = false, rou
                 Column(modifier = Modifier.padding(start = if (!isInnerNote) 10.dp else 0.dp)) {
                     FlowRow() {
                         likeSetCard.boostEvents.forEach {
-                            val cardNoteState by it.live.observeAsState()
-                            val cardNote = cardNoteState?.note
-
-                            if (cardNote?.author != null) {
-                                val userState by cardNote.author!!.live.observeAsState()
-
-                                UserPicture(
-                                    user = userState?.user,
-                                    navController = navController,
-                                    userAccount = account.userProfile(),
-                                    size = 35.dp
-                                )
-                            }
+                            NoteAuthorPicture(
+                                note = it,
+                                navController = navController,
+                                userAccount = account.userProfile(),
+                                size = 35.dp
+                            )
                         }
                     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/note/ChatroomCompose.kt

@@ -53,9 +53,6 @@ fun ChatroomCompose(baseNote: Note, accountViewModel: AccountViewModel, navContr
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
-    val accountUserState by account.userProfile().live.observeAsState()
-    val accountUser = accountUserState?.user ?: return
-
     val notificationCacheState = NotificationCache.live.observeAsState()
     val notificationCache = notificationCacheState.value ?: return
 
@@ -64,7 +61,7 @@ fun ChatroomCompose(baseNote: Note, accountViewModel: AccountViewModel, navContr
     if (note?.event == null) {
         BlankNote(Modifier)
     } else if (note.channel != null) {
-        val authorState by note.author!!.live.observeAsState()
+        val authorState by note.author!!.liveMetadata.observeAsState()
         val author = authorState?.user
 
         val channelState by note.channel!!.live.observeAsState()
@@ -108,25 +105,19 @@ fun ChatroomCompose(baseNote: Note, accountViewModel: AccountViewModel, navContr
         }
 
     } else {
-        val authorState by note.author!!.live.observeAsState()
-        val author = authorState?.user
-
         val replyAuthorBase = note.mentions?.first()
 
-        var userToComposeOn = author
+        var userToComposeOn = note.author!!
 
-        if ( replyAuthorBase != null ) {
-            val replyAuthorState by replyAuthorBase.live.observeAsState()
-            val replyAuthor = replyAuthorState?.user
-
-            if (author == accountUser) {
-                userToComposeOn = replyAuthor
+        if (replyAuthorBase != null) {
+            if (note.author == account.userProfile()) {
+                userToComposeOn = replyAuthorBase
             }
         }
 
         val noteEvent = note.event
 
-        userToComposeOn?.let { user ->
+        userToComposeOn.let { user ->
             val hasNewMessages =
                 if (noteEvent != null)
                     noteEvent.createdAt > notificationCache.cache.load("Room/${userToComposeOn.pubkeyHex}", context)
@@ -134,8 +125,8 @@ fun ChatroomCompose(baseNote: Note, accountViewModel: AccountViewModel, navContr
                     false
 
             ChannelName(
-                channelPicture = { UserPicture(user = user, userAccount = accountUser, size = 55.dp) },
-                channelTitle = { UsernameDisplay(user, it) },
+                channelPicture = { UserPicture(userToComposeOn, account.userProfile(), size = 55.dp) },
+                channelTitle = { UsernameDisplay(userToComposeOn, it) },
                 channelLastTime = noteEvent?.createdAt,
                 channelLastContent = accountViewModel.decrypt(note),
                 hasNewMessages = hasNewMessages,

app/src/main/java/com/vitorpamplona/amethyst/ui/note/ChatroomMessageCompose.kt

@@ -1,24 +1,34 @@
 package com.vitorpamplona.amethyst.ui.note
 
 import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.layout.widthIn
 import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Icon
+import androidx.compose.material.IconButton
+import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
 import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ChevronRight
+import androidx.compose.material.icons.filled.ExpandMore
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
@@ -29,14 +39,19 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ColorFilter
+import androidx.compose.ui.graphics.ColorMatrix
 import androidx.compose.ui.graphics.Shape
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextDirection
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
 import coil.compose.AsyncImage
 import coil.compose.rememberAsyncImagePainter
+import com.google.accompanist.flowlayout.FlowRow
 import com.vitorpamplona.amethyst.NotificationCache
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
@@ -45,6 +60,7 @@ import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
 import com.vitorpamplona.amethyst.ui.components.RichTextViewer
+import com.vitorpamplona.amethyst.ui.components.TranslateableRichTextViewer
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 
 val ChatBubbleShapeMe = RoundedCornerShape(15.dp, 15.dp, 3.dp, 15.dp)
@@ -59,24 +75,33 @@ fun ChatroomMessageCompose(baseNote: Note, routeForLastRead: String?, innerQuote
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
-    val accountUserState by account.userProfile().live.observeAsState()
-    val accountUser = accountUserState?.user
+    val noteReportsState by baseNote.liveReports.observeAsState()
+    val noteForReports = noteReportsState?.note ?: return
+
+    val accountUser = account.userProfile()
 
     var popupExpanded by remember { mutableStateOf(false) }
+    var showHiddenNote by remember { mutableStateOf(false) }
 
     val context = LocalContext.current.applicationContext
 
     if (note?.event == null) {
         BlankNote(Modifier)
+    } else if (!account.isAcceptable(noteForReports) && !showHiddenNote) {
+        HiddenNote(
+            account.getRelevantReports(noteForReports),
+            account.userProfile(),
+            Modifier,
+            innerQuote,
+            navController,
+            onClick = { showHiddenNote = true }
+        )
     } else {
-        val authorState by note.author!!.live.observeAsState()
-        val author = authorState?.user
-
         var backgroundBubbleColor: Color
         var alignment: Arrangement.Horizontal
         var shape: Shape
 
-        if (author == accountUser) {
+        if (note.author == accountUser) {
             backgroundBubbleColor = MaterialTheme.colors.primary.copy(alpha = 0.32f)
             alignment = Arrangement.End
             shape = ChatBubbleShapeMe
@@ -125,6 +150,9 @@ fun ChatroomMessageCompose(baseNote: Note, routeForLastRead: String?, innerQuote
                             modifier = Modifier.padding(start = 10.dp, end = 10.dp, bottom = 5.dp),
                         ) {
 
+                            val authorState by note.author!!.liveMetadata.observeAsState()
+                            val author = authorState?.user
+
                             if (innerQuote || author != accountUser && note.event is ChannelMessageEvent) {
                                 Row(
                                     verticalAlignment = Alignment.CenterVertically,
@@ -189,19 +217,27 @@ fun ChatroomMessageCompose(baseNote: Note, routeForLastRead: String?, innerQuote
                                 } else {
                                     val eventContent = accountViewModel.decrypt(note)
 
-                                    if (eventContent != null)
-                                        RichTextViewer(
-                                            eventContent,
-                                            note.event?.tags,
-                                            navController
-                                        )
-                                    else
-                                        RichTextViewer(
-                                            "Could Not decrypt the message",
-                                            note.event?.tags,
-                                            navController
-                                        )
+                                    val canPreview = note.author == accountUser
+                                          || (note.author?.let { accountUser.isFollowing(it) } ?: true )
+                                          || !noteForReports.hasAnyReports()
 
+                                    if (eventContent != null) {
+                                        TranslateableRichTextViewer(
+                                            eventContent,
+                                            canPreview,
+                                            note.event?.tags,
+                                            accountViewModel,
+                                            navController
+                                        )
+                                    } else {
+                                        TranslateableRichTextViewer(
+                                            "Could Not decrypt the message",
+                                            true,
+                                            note.event?.tags,
+                                            accountViewModel,
+                                            navController
+                                        )
+                                    }
                                 }
                             }
 
@@ -215,6 +251,8 @@ fun ChatroomMessageCompose(baseNote: Note, routeForLastRead: String?, innerQuote
                                     color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
                                     fontSize = 12.sp
                                 )
+
+                                RelayBadges(note)
                             }
                         }
                     }
@@ -227,3 +265,51 @@ fun ChatroomMessageCompose(baseNote: Note, routeForLastRead: String?, innerQuote
     }
 }
 
+
+
+@Composable
+private fun RelayBadges(baseNote: Note) {
+    val noteRelaysState by baseNote.liveRelays.observeAsState()
+    val noteRelays = noteRelaysState?.note?.relays ?: emptySet()
+
+    var expanded by remember { mutableStateOf(false) }
+
+    val relaysToDisplay = if (expanded) noteRelays else noteRelays.take(3)
+
+    val uri = LocalUriHandler.current
+
+    FlowRow(Modifier.padding(start = 10.dp)) {
+        relaysToDisplay.forEach {
+            val url = it.removePrefix("wss://")
+            Box(Modifier.size(15.dp).padding(1.dp)) {
+                AsyncImage(
+                    model = "https://${url}/favicon.ico",
+                    placeholder = rememberAsyncImagePainter("https://robohash.org/$url.png"),
+                    fallback = rememberAsyncImagePainter("https://robohash.org/$url.png"),
+                    error = rememberAsyncImagePainter("https://robohash.org/$url.png"),
+                    contentDescription = "Relay Icon",
+                    colorFilter = ColorFilter.colorMatrix(ColorMatrix().apply { setToSaturation(0f) }),
+                    modifier = Modifier
+                        .fillMaxSize(1f)
+                        .clip(shape = CircleShape)
+                        .background(MaterialTheme.colors.background)
+                        .clickable(onClick = { uri.openUri("https://" + url) } )
+                )
+            }
+        }
+
+        if (noteRelays.size > 3 && !expanded) {
+            IconButton(
+                modifier = Modifier.then(Modifier.size(15.dp)),
+                onClick = { expanded = true }
+            ) {
+                Icon(
+                    imageVector = Icons.Default.ChevronRight,
+                    null,
+                    modifier = Modifier.size(15.dp),
+                    tint = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/note/LikeSetCompose.kt

@@ -76,19 +76,12 @@ fun LikeSetCompose(likeSetCard: LikeSetCard, modifier: Modifier = Modifier, isIn
                 Column(modifier = Modifier.padding(start = if (!isInnerNote) 10.dp else 0.dp)) {
                     FlowRow() {
                         likeSetCard.likeEvents.forEach {
-                            val cardNoteState by it.live.observeAsState()
-                            val cardNote = cardNoteState?.note
-
-                            if (cardNote?.author != null) {
-                                val userState by cardNote.author!!.live.observeAsState()
-
-                                UserPicture(
-                                    user = userState?.user,
-                                    navController = navController,
-                                    userAccount = account.userProfile(),
-                                    size = 35.dp
-                                )
-                            }
+                            NoteAuthorPicture(
+                                note = it,
+                                navController = navController,
+                                userAccount = account.userProfile(),
+                                size = 35.dp
+                            )
                         }
                     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt

@@ -5,11 +5,13 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
@@ -19,9 +21,14 @@ import androidx.compose.material.Divider
 import androidx.compose.material.DropdownMenu
 import androidx.compose.material.DropdownMenuItem
 import androidx.compose.material.Icon
+import androidx.compose.material.IconButton
 import androidx.compose.material.LocalContentColor
+import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ExpandMore
+import androidx.compose.material.icons.filled.MoreVert
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.livedata.observeAsState
@@ -32,17 +39,22 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.ColorFilter
+import androidx.compose.ui.graphics.ColorMatrix
 import androidx.compose.ui.graphics.Shape
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextDirection
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import coil.compose.AsyncImage
 import coil.compose.rememberAsyncImagePainter
+import com.google.accompanist.flowlayout.FlowRow
 import com.vitorpamplona.amethyst.NotificationCache
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.Account
@@ -51,8 +63,10 @@ import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.model.toNote
 import com.vitorpamplona.amethyst.service.model.ChannelMessageEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
+import com.vitorpamplona.amethyst.service.model.ReportEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
 import com.vitorpamplona.amethyst.ui.components.RichTextViewer
+import com.vitorpamplona.amethyst.ui.components.TranslateableRichTextViewer
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.theme.Following
 import nostr.postr.events.TextNoteEvent
@@ -74,7 +88,11 @@ fun NoteCompose(
     val noteState by baseNote.live.observeAsState()
     val note = noteState?.note
 
+    val noteReportsState by baseNote.liveReports.observeAsState()
+    val noteForReports = noteReportsState?.note ?: return
+
     var popupExpanded by remember { mutableStateOf(false) }
+    var showHiddenNote by remember { mutableStateOf(false) }
 
     val context = LocalContext.current.applicationContext
 
@@ -83,15 +101,16 @@ fun NoteCompose(
             onClick = {  },
             onLongClick = { popupExpanded = true },
         ), isInnerNote)
-    } else if (account?.isAcceptable(note) == false) {
-        HiddenNote(modifier.combinedClickable(
-            onClick = {  },
-            onLongClick = { popupExpanded = true },
-        ), isInnerNote)
+    } else if (!account.isAcceptable(noteForReports) && !showHiddenNote) {
+        HiddenNote(
+            account.getRelevantReports(noteForReports),
+            account.userProfile(),
+            modifier,
+            isInnerNote,
+            navController,
+            onClick = { showHiddenNote = true }
+        )
     } else {
-        val authorState by note.author?.live!!.observeAsState()
-        val author = authorState?.user ?: return // if it has event, it should have an author
-
         val isNew = routeForLastRead?.run {
             val lastTime = NotificationCache.load(this, context)
 
@@ -134,65 +153,74 @@ fun NoteCompose(
                         top = 10.dp)
             ) {
 
-                // Draws the boosted picture outside the boosted card.
                 if (!isInnerNote) {
-                    Box(modifier = Modifier
-                        .width(55.dp)
-                        .padding(0.dp)) {
-                        UserPicture(author, navController, account.userProfile(), 55.dp)
+                    Column(Modifier.width(55.dp)) {
+                    // Draws the boosted picture outside the boosted card.
+                        Box(modifier = Modifier
+                            .width(55.dp)
+                            .padding(0.dp)) {
 
-                        // boosted picture
-                        val boostedPosts = note.replyTo
-                        if (note.event is RepostEvent && boostedPosts != null && boostedPosts.isNotEmpty()) {
-                            val boostedAuthor = boostedPosts[0].author
-                            Box(
-                                Modifier
-                                    .width(30.dp)
-                                    .height(30.dp)
-                                    .align(Alignment.BottomEnd)) {
-                                UserPicture(boostedAuthor, navController, account.userProfile(), 35.dp,
-                                    pictureModifier = Modifier.border(2.dp, MaterialTheme.colors.background, CircleShape)
-                                )
+                            NoteAuthorPicture(note, navController, account.userProfile(), 55.dp)
+
+                            if (note.event is RepostEvent) {
+                                note.replyTo?.lastOrNull()?.let {
+                                    Box(
+                                        Modifier
+                                            .width(30.dp)
+                                            .height(30.dp)
+                                            .align(Alignment.BottomEnd)) {
+                                        NoteAuthorPicture(it, navController, account.userProfile(), 35.dp,
+                                            pictureModifier = Modifier.border(2.dp, MaterialTheme.colors.background, CircleShape)
+                                        )
+                                    }
+                                }
+                            }
+
+                            // boosted picture
+                            val baseChannel = note.channel
+                            if (note.event is ChannelMessageEvent && baseChannel != null) {
+                                val channelState by baseChannel.live.observeAsState()
+                                val channel = channelState?.channel
+
+                                if (channel != null) {
+                                    Box(
+                                        Modifier
+                                            .width(30.dp)
+                                            .height(30.dp)
+                                            .align(Alignment.BottomEnd)) {
+                                        AsyncImage(
+                                            model = channel.profilePicture(),
+                                            placeholder = null,
+                                            contentDescription = "Group Picture",
+                                            modifier = Modifier
+                                                .width(30.dp)
+                                                .height(30.dp)
+                                                .clip(shape = CircleShape)
+                                                .background(MaterialTheme.colors.background)
+                                                .border(
+                                                    2.dp,
+                                                    MaterialTheme.colors.background,
+                                                    CircleShape
+                                                )
+                                        )
+                                    }
+                                }
                             }
                         }
 
-                        // boosted picture
-                        val baseChannel = note.channel
-                        if (note.event is ChannelMessageEvent && baseChannel != null) {
-                            val channelState by baseChannel.live.observeAsState()
-                            val channel = channelState?.channel
-
-                            if (channel != null) {
-                                Box(
-                                    Modifier
-                                        .width(30.dp)
-                                        .height(30.dp)
-                                        .align(Alignment.BottomEnd)) {
-                                    AsyncImage(
-                                        model = channel.profilePicture(),
-                                        placeholder = null,
-                                        contentDescription = "Group Picture",
-                                        modifier = Modifier
-                                            .width(30.dp)
-                                            .height(30.dp)
-                                            .clip(shape = CircleShape)
-                                            .background(MaterialTheme.colors.background)
-                                            .border(
-                                                2.dp,
-                                                MaterialTheme.colors.background,
-                                                CircleShape
-                                            )
-                                    )
-                                }
+                        if (note.event is RepostEvent) {
+                            note.replyTo?.lastOrNull()?.let {
+                                RelayBadges(it)
                             }
+                        } else {
+                            RelayBadges(baseNote)
                         }
                     }
                 }
 
                 Column(modifier = Modifier.padding(start = if (!isInnerNote) 10.dp else 0.dp)) {
                     Row(verticalAlignment = Alignment.CenterVertically) {
-                        if (author != null)
-                            UsernameDisplay(author, Modifier.weight(1f))
+                        NoteUsernameDisplay(note, Modifier.weight(1f))
 
                         if (note.event !is RepostEvent) {
                             Text(
@@ -218,9 +246,9 @@ fun NoteCompose(
                     }
 
                     if (note.event is ReactionEvent || note.event is RepostEvent) {
-                        note.replyTo?.mapIndexed { index, note ->
+                        note.replyTo?.lastOrNull()?.let {
                             NoteCompose(
-                                note,
+                                it,
                                 modifier = Modifier,
                                 isInnerNote = true,
                                 accountViewModel = accountViewModel,
@@ -239,12 +267,21 @@ fun NoteCompose(
                         }
                     } else {
                         val eventContent = note.event?.content
-                        if (eventContent != null)
-                            RichTextViewer(eventContent, note.event?.tags, navController)
+                        val canPreview = note.author == account.userProfile()
+                          || (note.author?.let { account.userProfile().isFollowing(it) } ?: true )
+                          || !noteForReports.hasAnyReports()
+
+                        if (eventContent != null) {
+                            TranslateableRichTextViewer(
+                                eventContent,
+                                canPreview,
+                                note.event?.tags,
+                                accountViewModel,
+                                navController
+                            )
+                        }
 
-                        //if (note.event !is ChannelMessageEvent) {
                         ReactionsRow(note, accountViewModel)
-                        //}
 
                         Divider(
                             modifier = Modifier.padding(top = 10.dp),
@@ -260,39 +297,90 @@ fun NoteCompose(
 }
 
 @Composable
-fun UserPicture(
-    user: User?,
+private fun RelayBadges(baseNote: Note) {
+    val noteRelaysState by baseNote.liveRelays.observeAsState()
+    val noteRelays = noteRelaysState?.note?.relays ?: emptySet()
+
+    var expanded by remember { mutableStateOf(false) }
+
+    val relaysToDisplay = if (expanded) noteRelays else noteRelays.take(3)
+
+    val uri = LocalUriHandler.current
+
+    FlowRow(Modifier.padding(top = 10.dp, start = 5.dp, end = 4.dp)) {
+        relaysToDisplay.forEach {
+            val url = it.removePrefix("wss://")
+            Box(Modifier.size(15.dp).padding(1.dp)) {
+                AsyncImage(
+                    model = "https://${url}/favicon.ico",
+                    placeholder = rememberAsyncImagePainter("https://robohash.org/$url.png"),
+                    fallback = rememberAsyncImagePainter("https://robohash.org/$url.png"),
+                    error = rememberAsyncImagePainter("https://robohash.org/$url.png"),
+                    contentDescription = "Relay Icon",
+                    colorFilter = ColorFilter.colorMatrix(ColorMatrix().apply { setToSaturation(0f) }),
+                    modifier = Modifier
+                        .fillMaxSize(1f)
+                        .clip(shape = CircleShape)
+                        .background(MaterialTheme.colors.background)
+                        .clickable(onClick = { uri.openUri("https://" + url) } )
+                )
+            }
+        }
+    }
+
+    if (noteRelays.size > 3 && !expanded) {
+        Row(Modifier.fillMaxWidth().height(25.dp), horizontalArrangement = Arrangement.Center, verticalAlignment = Alignment.Top) {
+            IconButton(
+                modifier = Modifier.then(Modifier.size(24.dp)),
+                onClick = { expanded = true }
+            ) {
+                Icon(
+                    imageVector = Icons.Default.ExpandMore,
+                    null,
+                    modifier = Modifier.size(15.dp),
+                    tint = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+                )
+            }
+        }
+    }
+}
+
+
+@Composable
+fun NoteAuthorPicture(
+    note: Note,
     navController: NavController,
     userAccount: User,
     size: Dp,
     pictureModifier: Modifier = Modifier
 ) {
-    UserPicture(user, userAccount, size, pictureModifier) {
-        user?.let {
-            navController.navigate("User/${it.pubkeyHex}")
-        }
+    NoteAuthorPicture(note, userAccount, size, pictureModifier) {
+        navController.navigate("User/${it.pubkeyHex}")
     }
 }
 
+
 @Composable
-fun UserPicture(
-    user: User?,
-    userAccount: User,
+fun NoteAuthorPicture(
+    baseNote: Note,
+    baseUserAccount: User,
     size: Dp,
     pictureModifier: Modifier = Modifier,
-    onClick: (() -> Unit)? = null
+    onClick: ((User) -> Unit)? = null
 ) {
-    val accountState by userAccount.live.observeAsState()
-    val accountUser = accountState?.user ?: return
+    val noteState by baseNote.live.observeAsState()
+    val note = noteState?.note ?: return
+
+    val author = note.author
 
     Box(
         Modifier
             .width(size)
             .height(size)) {
-        if (user == null) {
+        if (author == null) {
             AsyncImage(
                 model = "https://robohash.org/ohno.png",
-                contentDescription = "Profile Image",
+                contentDescription = "Unknown Author",
                 placeholder = rememberAsyncImagePainter("https://robohash.org/ohno.png"),
                 modifier = pictureModifier
                     .fillMaxSize(1f)
@@ -300,54 +388,90 @@ fun UserPicture(
                     .background(MaterialTheme.colors.background)
             )
         } else {
-            val userState by user.live.observeAsState()
-            val userLive = userState?.user ?: return
+            UserPicture(author, baseUserAccount, size, pictureModifier, onClick)
+        }
+    }
+}
 
-            AsyncImage(
-                model = userLive.profilePicture(),
-                contentDescription = "Profile Image",
-                placeholder = rememberAsyncImagePainter("https://robohash.org/${userLive.pubkeyHex}.png"),
-                modifier = pictureModifier
-                    .fillMaxSize(1f)
-                    .clip(shape = CircleShape)
-                    .background(MaterialTheme.colors.background)
-                    .run {
-                        if (onClick != null)
-                            this.clickable(onClick = onClick)
-                        else
-                            this
-                    }
+@Composable
+fun UserPicture(
+    user: User,
+    navController: NavController,
+    userAccount: User,
+    size: Dp,
+    pictureModifier: Modifier = Modifier
+) {
+    UserPicture(user, userAccount, size, pictureModifier) {
+        navController.navigate("User/${it.pubkeyHex}")
+    }
+}
 
-            )
+@Composable
+fun UserPicture(
+    baseUser: User,
+    baseUserAccount: User,
+    size: Dp,
+    pictureModifier: Modifier = Modifier,
+    onClick: ((User) -> Unit)? = null
+) {
+    val userState by baseUser.liveMetadata.observeAsState()
+    val user = userState?.user ?: return
 
-            if (accountUser.isFollowing(userLive) || userLive == accountUser) {
-                Box(
-                    Modifier
-                        .width(size.div(3.5f))
-                        .height(size.div(3.5f))
-                        .align(Alignment.TopEnd),
-                    contentAlignment = Alignment.Center
-                ) {
-                    // Background for the transparent checkmark
-                    Text(
-                        "x",
-                        Modifier
-                            .padding(4.dp)
-                            .fillMaxSize()
-                            .align(Alignment.Center)
-                            .background(MaterialTheme.colors.background)
-                            .clip(shape = CircleShape)
-                    )
+    Box(
+        Modifier
+            .width(size)
+            .height(size)) {
 
-                    Icon(
-                        painter = painterResource(R.drawable.ic_verified),
-                        "Following",
-                        modifier = Modifier.fillMaxSize(),
-                        tint = Following
-                    )
+        AsyncImage(
+            model = user.profilePicture(),
+            contentDescription = "Profile Image",
+            placeholder = rememberAsyncImagePainter("https://robohash.org/${user.pubkeyHex}.png"),
+            fallback = rememberAsyncImagePainter("https://robohash.org/${user.pubkeyHex}.png"),
+            error = rememberAsyncImagePainter("https://robohash.org/${user.pubkeyHex}.png"),
+            modifier = pictureModifier
+                .fillMaxSize(1f)
+                .clip(shape = CircleShape)
+                .background(MaterialTheme.colors.background)
+                .run {
+                    if (onClick != null)
+                        this.clickable(onClick = { onClick(user) } )
+                    else
+                        this
                 }
+
+        )
+
+        val accountState by baseUserAccount.liveFollows.observeAsState()
+        val accountUser = accountState?.user ?: return
+
+        if (accountUser.isFollowing(user) || user == accountUser) {
+            Box(
+                Modifier
+                    .width(size.div(3.5f))
+                    .height(size.div(3.5f))
+                    .align(Alignment.TopEnd),
+                contentAlignment = Alignment.Center
+            ) {
+                // Background for the transparent checkmark
+                Text(
+                    "x",
+                    Modifier
+                        .padding(4.dp)
+                        .fillMaxSize()
+                        .align(Alignment.Center)
+                        .background(MaterialTheme.colors.background)
+                        .clip(shape = CircleShape)
+                )
+
+                Icon(
+                    painter = painterResource(R.drawable.ic_verified),
+                    "Following",
+                    modifier = Modifier.fillMaxSize(),
+                    tint = Following
+                )
             }
         }
+
     }
 }
 
@@ -364,7 +488,7 @@ fun NoteDropDownMenu(note: Note, popupExpanded: Boolean, onDismiss: () -> Unit,
             Text("Copy Text")
         }
         DropdownMenuItem(onClick = { clipboardManager.setText(AnnotatedString(note.author?.pubkey?.toNpub() ?: "")); onDismiss() }) {
-            Text("Copy User ID")
+            Text("Copy User PubKey")
         }
         DropdownMenuItem(onClick = { clipboardManager.setText(AnnotatedString(note.id.toNote())); onDismiss() }) {
             Text("Copy Note ID")
@@ -374,11 +498,37 @@ fun NoteDropDownMenu(note: Note, popupExpanded: Boolean, onDismiss: () -> Unit,
             Text("Broadcast")
         }
         Divider()
-        DropdownMenuItem(onClick = { accountViewModel.report(note); onDismiss() }) {
-            Text("Report Post")
-        }
         DropdownMenuItem(onClick = { note.author?.let { accountViewModel.hide(it, context) }; onDismiss() }) {
             Text("Hide User")
         }
+        Divider()
+        DropdownMenuItem(onClick = {
+            accountViewModel.report(note, ReportEvent.ReportType.SPAM);
+            note.author?.let { accountViewModel.hide(it, context) }
+            onDismiss()
+        }) {
+            Text("Report Spam / Scam")
+        }
+        DropdownMenuItem(onClick = {
+            accountViewModel.report(note, ReportEvent.ReportType.IMPERSONATION);
+            note.author?.let { accountViewModel.hide(it, context) }
+            onDismiss()
+        }) {
+            Text("Report Impersonation")
+        }
+        DropdownMenuItem(onClick = {
+            accountViewModel.report(note, ReportEvent.ReportType.EXPLICIT);
+            note.author?.let { accountViewModel.hide(it, context) }
+            onDismiss()
+        }) {
+            Text("Report Explicit Content")
+        }
+        DropdownMenuItem(onClick = {
+            accountViewModel.report(note, ReportEvent.ReportType.ILLEGAL);
+            note.author?.let { accountViewModel.hide(it, context) }
+            onDismiss()
+        }) {
+            Text("Report Illegal Behaviour")
+        }
     }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/note/ReactionsRow.kt

@@ -30,6 +30,7 @@ import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ColorFilter
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
@@ -60,6 +61,7 @@ fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
   val grayTint = MaterialTheme.colors.onSurface.copy(alpha = 0.32f)
 
   var popupExpanded by remember { mutableStateOf(false) }
+  val uri = LocalUriHandler.current
 
   var wantsToReplyTo by remember {
     mutableStateOf<Note?>(null)
@@ -153,7 +155,7 @@ fun ReactionsRow(baseNote: Note, accountViewModel: AccountViewModel) {
 
     IconButton(
       modifier = Modifier.then(Modifier.size(24.dp)),
-      onClick = { }
+      onClick = { uri.openUri("https://counter.amethyst.social/${baseNote.idHex}/") }
     ) {
       Icon(
         imageVector = Icons.Outlined.BarChart,

app/src/main/java/com/vitorpamplona/amethyst/ui/note/RelayCompose.kt

@@ -0,0 +1,126 @@
+package com.vitorpamplona.amethyst.ui.note
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.Divider
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavController
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import java.time.Instant
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+
+@Composable
+fun RelayCompose(
+    relay: User.RelayInfo,
+    accountViewModel: AccountViewModel,
+    navController: NavController,
+    onAddRelay: () -> Unit,
+    onRemoveRelay: () -> Unit
+) {
+    val accountState by accountViewModel.accountLiveData.observeAsState()
+    val account = accountState?.account ?: return
+
+    Column() {
+        Row(
+            modifier = Modifier
+                .padding(start = 12.dp, end = 12.dp, top = 10.dp)
+        ) {
+
+            //UserPicture(user, navController, account.userProfile(), 55.dp)
+
+            Column(modifier = Modifier
+                .padding(start = 10.dp)
+                .weight(1f)) {
+                Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+                    Text(
+                        relay.url.trim().removePrefix("wss://"),
+                        fontWeight = FontWeight.Bold,
+                        maxLines = 1,
+                        overflow = TextOverflow.Ellipsis
+                    )
+
+                    Text(
+                        timeAgo(relay.lastEvent),
+                        maxLines = 1
+                    )
+                }
+
+                Text(
+                    "${relay.counter} posts received",
+                    color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis
+                )
+            }
+
+            Column(modifier = Modifier.padding(start = 10.dp)) {
+                if (account.activeRelays()?.none { it.url == relay.url } == true) {
+                    AddRelayButton { onAddRelay() }
+                } else {
+                    RemoveRelayButton { onRemoveRelay() }
+                }
+            }
+        }
+
+        Divider(
+            modifier = Modifier.padding(top = 10.dp),
+            thickness = 0.25.dp
+        )
+    }
+}
+
+@Composable
+fun AddRelayButton(onClick: () -> Unit) {
+    Button(
+        modifier = Modifier.padding(horizontal = 3.dp),
+        onClick = onClick,
+        shape = RoundedCornerShape(20.dp),
+        colors = ButtonDefaults
+            .buttonColors(
+                backgroundColor = MaterialTheme.colors.primary
+            ),
+        contentPadding = PaddingValues(vertical = 6.dp, horizontal = 16.dp)
+    ) {
+        Text(text = "Add", color = Color.White)
+    }
+}
+
+@Composable
+fun RemoveRelayButton(onClick: () -> Unit) {
+    Button(
+        modifier = Modifier.padding(horizontal = 3.dp),
+        onClick = onClick,
+        shape = RoundedCornerShape(20.dp),
+        colors = ButtonDefaults
+            .buttonColors(
+                backgroundColor = MaterialTheme.colors.primary
+            ),
+        contentPadding = PaddingValues(vertical = 6.dp, horizontal = 16.dp)
+    ) {
+        Text(text = "Remove", color = Color.White)
+    }
+}
+
+fun formattedDateTime(timestamp: Long): String {
+    return Instant.ofEpochSecond(timestamp).atZone(ZoneId.systemDefault())
+        .format(DateTimeFormatter.ofPattern("MMM d, uuuu hh:mm a"))
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/note/ReplyInformation.kt

@@ -24,14 +24,14 @@ import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
 
 @Composable
-fun ReplyInformation(replyTo: MutableList<Note>?, mentions: List<User>?, navController: NavController) {
+fun ReplyInformation(replyTo: List<Note>?, mentions: List<User>?, navController: NavController) {
   ReplyInformation(replyTo, mentions) {
     navController.navigate("User/${it.pubkeyHex}")
   }
 }
 
 @Composable
-fun ReplyInformation(replyTo: MutableList<Note>?, mentions: List<User>?, prefix: String = "", onUserTagClick: (User) -> Unit) {
+fun ReplyInformation(replyTo: List<Note>?, mentions: List<User>?, prefix: String = "", onUserTagClick: (User) -> Unit) {
   FlowRow() {
     if (mentions != null && mentions.isNotEmpty()) {
       if (replyTo != null && replyTo.isNotEmpty()) {
@@ -44,7 +44,7 @@ fun ReplyInformation(replyTo: MutableList<Note>?, mentions: List<User>?, prefix:
         val mentionSet = mentions.toSet()
 
         mentionSet.toSet().forEachIndexed { idx, user ->
-          val innerUserState by user.live.observeAsState()
+          val innerUserState by user.liveMetadata.observeAsState()
           val innerUser = innerUserState?.user
 
           innerUser?.let { myUser ->
@@ -76,7 +76,7 @@ fun ReplyInformation(replyTo: MutableList<Note>?, mentions: List<User>?, prefix:
 
 
 @Composable
-fun ReplyInformationChannel(replyTo: MutableList<Note>?, mentions: List<User>?, channel: Channel, navController: NavController) {
+fun ReplyInformationChannel(replyTo: List<Note>?, mentions: List<User>?, channel: Channel, navController: NavController) {
   ReplyInformationChannel(replyTo, mentions, channel,
     onUserTagClick = {
       navController.navigate("User/${it.pubkeyHex}")
@@ -89,7 +89,7 @@ fun ReplyInformationChannel(replyTo: MutableList<Note>?, mentions: List<User>?,
 
 
 @Composable
-fun ReplyInformationChannel(replyTo: MutableList<Note>?,
+fun ReplyInformationChannel(replyTo: List<Note>?,
                      mentions: List<User>?,
                      baseChannel: Channel,
                      prefix: String = "",
@@ -123,7 +123,7 @@ fun ReplyInformationChannel(replyTo: MutableList<Note>?,
         val mentionSet = mentions.toSet()
 
         mentionSet.forEachIndexed { idx, user ->
-          val innerUserState by user.live.observeAsState()
+          val innerUserState by user.liveMetadata.observeAsState()
           val innerUser = innerUserState?.user
 
           innerUser?.let { myUser ->

app/src/main/java/com/vitorpamplona/amethyst/ui/note/TimeAgoFormatter.kt

@@ -4,6 +4,7 @@ import android.text.format.DateUtils
 
 fun timeAgo(mills: Long?): String {
   if (mills == null) return " "
+  if (mills == 0L) return " • never"
 
   var humanReadable = DateUtils.getRelativeTimeSpanString(
     mills * 1000,

app/src/main/java/com/vitorpamplona/amethyst/ui/note/UserCompose.kt

@@ -34,14 +34,14 @@ fun UserCompose(baseUser: User, accountViewModel: AccountViewModel, navControlle
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
-    val userState by baseUser.live.observeAsState()
-    val user = userState?.user ?: return
+    val userState by account.userProfile().liveFollows.observeAsState()
+    val userFollows = userState?.user ?: return
 
     val ctx = LocalContext.current.applicationContext
 
     Column(modifier =
         Modifier.clickable(
-            onClick = { navController.navigate("User/${user.pubkeyHex}") }
+            onClick = { navController.navigate("User/${baseUser.pubkeyHex}") }
         )
     ) {
         Row(
@@ -52,13 +52,16 @@ fun UserCompose(baseUser: User, accountViewModel: AccountViewModel, navControlle
                     top = 10.dp)
         ) {
 
-            UserPicture(user, navController, account.userProfile(), 55.dp)
+            UserPicture(baseUser, navController, account.userProfile(), 55.dp)
 
             Column(modifier = Modifier.padding(start = 10.dp).weight(1f)) {
                 Row(verticalAlignment = Alignment.CenterVertically) {
-                    UsernameDisplay(user)
+                    UsernameDisplay(baseUser)
                 }
 
+                val userState by baseUser.liveMetadata.observeAsState()
+                val user = userState?.user ?: return
+
                 Text(
                     user.info.about ?: "",
                     color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
@@ -68,15 +71,15 @@ fun UserCompose(baseUser: User, accountViewModel: AccountViewModel, navControlle
             }
 
             Column(modifier = Modifier.padding(start = 10.dp)) {
-                if (account?.isAcceptable(user) == false) {
+                if (account.isHidden(baseUser)) {
                     ShowUserButton {
-                        account.showUser(user.pubkeyHex)
+                        account.showUser(baseUser.pubkeyHex)
                         LocalPreferences(ctx).saveToEncryptedStorage(account)
                     }
-                } else if (account?.userProfile()?.isFollowing(user) == true) {
-                    UnfollowButton { account.unfollow(user) }
+                } else if (userFollows.isFollowing(baseUser)) {
+                    UnfollowButton { account.unfollow(baseUser) }
                 } else {
-                    FollowButton { account?.follow(user) }
+                    FollowButton { account.follow(baseUser) }
                 }
             }
         }

app/src/main/java/com/vitorpamplona/amethyst/ui/note/UsernameDisplay.kt

@@ -3,42 +3,61 @@ package com.vitorpamplona.amethyst.ui.note
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
+import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
 
+
 @Composable
-fun UsernameDisplay(user: User, weight: Modifier = Modifier) {
-    if (user.bestUsername() != null || user.bestDisplayName() != null) {
-      if (user.bestDisplayName().isNullOrBlank()) {
-        Text(
-          "@${(user.bestUsername() ?: "")}",
-          fontWeight = FontWeight.Bold,
-          maxLines = 1,
-          overflow = TextOverflow.Ellipsis,
-          modifier = weight
-        )
-      } else {
-        Text(
-          user.bestDisplayName() ?: "",
-          fontWeight = FontWeight.Bold,
-        )
-        Text(
-          "@${(user.bestUsername() ?: "")}",
-          color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
-          maxLines = 1,
-          overflow = TextOverflow.Ellipsis,
-          modifier = weight
-        )
-      }
-    } else {
+fun NoteUsernameDisplay(baseNote: Note, weight: Modifier = Modifier) {
+  val noteState by baseNote.live.observeAsState()
+  val note = noteState?.note ?: return
+
+  val author = note.author
+
+  if (author != null) {
+    UsernameDisplay(author, weight)
+  }
+}
+
+@Composable
+fun UsernameDisplay(baseUser: User, weight: Modifier = Modifier) {
+  val userState by baseUser.liveMetadata.observeAsState()
+  val user = userState?.user ?: return
+
+  if (user.bestUsername() != null || user.bestDisplayName() != null) {
+    if (user.bestDisplayName().isNullOrBlank()) {
       Text(
-        user.pubkeyDisplayHex,
+        "@${(user.bestUsername() ?: "")}",
         fontWeight = FontWeight.Bold,
         maxLines = 1,
         overflow = TextOverflow.Ellipsis,
         modifier = weight
       )
+    } else {
+      Text(
+        user.bestDisplayName() ?: "",
+        fontWeight = FontWeight.Bold,
+      )
+      Text(
+        "@${(user.bestUsername() ?: "")}",
+        color = MaterialTheme.colors.onSurface.copy(alpha = 0.32f),
+        maxLines = 1,
+        overflow = TextOverflow.Ellipsis,
+        modifier = weight
+      )
     }
+  } else {
+    Text(
+      user.pubkeyDisplayHex,
+      fontWeight = FontWeight.Bold,
+      maxLines = 1,
+      overflow = TextOverflow.Ellipsis,
+      modifier = weight
+    )
+  }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/qrcode/QrCodeDrawer.kt

@@ -0,0 +1,245 @@
+package com.vitorpamplona.amethyst.ui.navigation
+
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.defaultMinSize
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.CornerRadius
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Rect
+import androidx.compose.ui.geometry.RoundRect
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.Path
+import androidx.compose.ui.graphics.PathFillType
+import androidx.compose.ui.graphics.drawscope.DrawScope
+import androidx.compose.ui.unit.dp
+import com.google.zxing.EncodeHintType
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
+import com.google.zxing.qrcode.encoder.ByteMatrix
+import com.google.zxing.qrcode.encoder.Encoder
+import com.google.zxing.qrcode.encoder.QRCode
+
+
+const val QR_MARGIN_PX = 100f
+
+@Composable
+fun QrCodeDrawer(contents: String, modifier: Modifier = Modifier) {
+  val qrCode = remember(contents) {
+    createQrCode(contents = contents)
+  }
+
+  val foregroundColor = MaterialTheme.colors.onSurface
+
+  Box(
+    modifier = modifier
+      .defaultMinSize(48.dp, 48.dp)
+      .aspectRatio(1f)
+      .background(MaterialTheme.colors.background)
+  ) {
+    Canvas(modifier = Modifier.fillMaxSize()) {
+      // Calculate the height and width of each column/row
+      val rowHeight = (size.width - QR_MARGIN_PX * 2f) / qrCode.matrix.height
+      val columnWidth = (size.width - QR_MARGIN_PX * 2f) / qrCode.matrix.width
+
+      // Draw all of the finder patterns required by the QR spec. Calculate the ratio
+      // of the number of rows/columns to the width and height
+      drawQrCodeFinders(
+        sideLength = size.width,
+        finderPatternSize = Size(
+          width = columnWidth * FINDER_PATTERN_ROW_COUNT,
+          height = rowHeight * FINDER_PATTERN_ROW_COUNT
+        ),
+        color = foregroundColor
+      )
+
+      // Draw data bits (encoded data part)
+      drawAllQrCodeDataBits(
+        bytes = qrCode.matrix,
+        size = Size(
+          width = columnWidth,
+          height = rowHeight
+        ),
+        color = foregroundColor
+      )
+    }
+  }
+}
+
+private typealias Coordinate = Pair<Int, Int>
+
+private fun createQrCode(contents: String): QRCode {
+  require(contents.isNotEmpty())
+
+  return Encoder.encode(
+    contents,
+    ErrorCorrectionLevel.Q,
+    mapOf(
+      EncodeHintType.CHARACTER_SET to "UTF-8",
+      EncodeHintType.MARGIN to QR_MARGIN_PX,
+      EncodeHintType.ERROR_CORRECTION to ErrorCorrectionLevel.Q
+    )
+  )
+}
+
+fun newPath(withPath: Path.() -> Unit) = Path().apply {
+  fillType = PathFillType.EvenOdd
+  withPath(this)
+}
+
+fun DrawScope.drawAllQrCodeDataBits(
+  bytes: ByteMatrix,
+  size: Size,
+  color: Color,
+) {
+  setOf(
+    // data bits between top left finder pattern and top right finder pattern.
+    Pair(
+      first = Coordinate(first = FINDER_PATTERN_ROW_COUNT, second = 0),
+      second = Coordinate(
+        first = (bytes.width - FINDER_PATTERN_ROW_COUNT),
+        second = FINDER_PATTERN_ROW_COUNT
+      )
+    ),
+    // data bits below top left finder pattern and above bottom left finder pattern.
+    Pair(
+      first = Coordinate(first = 0, second = FINDER_PATTERN_ROW_COUNT),
+      second = Coordinate(
+        first = bytes.width,
+        second = bytes.height - FINDER_PATTERN_ROW_COUNT
+      )
+    ),
+    // data bits to the right of the bottom left finder pattern.
+    Pair(
+      first = Coordinate(
+        first = FINDER_PATTERN_ROW_COUNT,
+        second = (bytes.height - FINDER_PATTERN_ROW_COUNT)
+      ),
+      second = Coordinate(
+        first = bytes.width,
+        second = bytes.height
+      )
+    )
+  ).forEach { section ->
+    for (y in section.first.second until section.second.second) {
+      for (x in section.first.first until section.second.first) {
+        if (bytes[x, y] == 1.toByte()) {
+          drawPath(
+            color = color,
+            path = newPath {
+              addRect(
+                rect = Rect(
+                  offset = Offset(
+                    x = QR_MARGIN_PX + x * size.width,
+                    y = QR_MARGIN_PX + y * size.height
+                  ),
+                  size = size
+                )
+              )
+            }
+          )
+        }
+      }
+    }
+  }
+}
+
+const val FINDER_PATTERN_ROW_COUNT = 7
+private const val INTERIOR_EXTERIOR_SHAPE_RATIO = 3f / FINDER_PATTERN_ROW_COUNT
+private const val INTERIOR_EXTERIOR_OFFSET_RATIO = 2f / FINDER_PATTERN_ROW_COUNT
+private const val INTERIOR_EXTERIOR_SHAPE_CORNER_RADIUS = 0.12f
+private const val INTERIOR_BACKGROUND_EXTERIOR_SHAPE_RATIO = 5f / FINDER_PATTERN_ROW_COUNT
+private const val INTERIOR_BACKGROUND_EXTERIOR_OFFSET_RATIO = 1f / FINDER_PATTERN_ROW_COUNT
+private const val INTERIOR_BACKGROUND_EXTERIOR_SHAPE_CORNER_RADIUS = 0.5f
+
+/**
+ *  A valid QR code has three finder patterns (top left, top right, bottom left).
+ *
+ *  @param qrCodeProperties how the QR code is drawn
+ *  @param sideLength length, in pixels, of each side of the QR code
+ *  @param finderPatternSize [Size] of each finder patten, based on the QR code spec
+ */
+internal fun DrawScope.drawQrCodeFinders(
+  sideLength: Float,
+  finderPatternSize: Size,
+  color: Color
+) {
+
+  setOf(
+    // Draw top left finder pattern.
+    Offset(x = QR_MARGIN_PX, y = QR_MARGIN_PX),
+    // Draw top right finder pattern.
+    Offset(x = sideLength - (QR_MARGIN_PX + finderPatternSize.width), y = QR_MARGIN_PX),
+    // Draw bottom finder pattern.
+    Offset(x = QR_MARGIN_PX, y = sideLength - (QR_MARGIN_PX + finderPatternSize.height))
+  ).forEach { offset ->
+    drawQrCodeFinder(
+      topLeft = offset,
+      finderPatternSize = finderPatternSize,
+      cornerRadius = CornerRadius.Zero,
+      color = color
+    )
+  }
+}
+
+/**
+ * This func is responsible for drawing a single finder pattern, for a QR code
+ */
+private fun DrawScope.drawQrCodeFinder(
+  topLeft: Offset,
+  finderPatternSize: Size,
+  cornerRadius: CornerRadius,
+  color: Color
+) {
+  drawPath(
+    color = color,
+    path = newPath {
+      // Draw the outer rectangle for the finder pattern.
+      addRoundRect(
+        roundRect = RoundRect(
+          rect = Rect(
+            offset = topLeft,
+            size = finderPatternSize
+          ),
+          cornerRadius = cornerRadius
+        )
+      )
+
+      // Draw background for the finder pattern interior (this keeps the arc ratio consistent).
+      val innerBackgroundOffset = Offset(
+        x = finderPatternSize.width * INTERIOR_BACKGROUND_EXTERIOR_OFFSET_RATIO,
+        y = finderPatternSize.height * INTERIOR_BACKGROUND_EXTERIOR_OFFSET_RATIO
+      )
+      addRoundRect(
+        roundRect = RoundRect(
+          rect = Rect(
+            offset = topLeft + innerBackgroundOffset,
+            size = finderPatternSize * INTERIOR_BACKGROUND_EXTERIOR_SHAPE_RATIO
+          ),
+          cornerRadius = cornerRadius * INTERIOR_BACKGROUND_EXTERIOR_SHAPE_CORNER_RADIUS
+        )
+      )
+
+      // Draw the inner rectangle for the finder pattern.
+      val innerRectOffset = Offset(
+        x = finderPatternSize.width * INTERIOR_EXTERIOR_OFFSET_RATIO,
+        y = finderPatternSize.height * INTERIOR_EXTERIOR_OFFSET_RATIO
+      )
+      addRoundRect(
+        roundRect = RoundRect(
+          rect = Rect(
+            offset = topLeft + innerRectOffset,
+            size = finderPatternSize * INTERIOR_EXTERIOR_SHAPE_RATIO
+          ),
+          cornerRadius = cornerRadius * INTERIOR_EXTERIOR_SHAPE_CORNER_RADIUS
+        )
+      )
+    }
+  )
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/qrcode/QrCodeScanner.kt

@@ -0,0 +1,167 @@
+package com.vitorpamplona.amethyst.ui.qrcode
+import android.Manifest
+import android.content.Context
+import android.content.pm.PackageManager
+import android.graphics.ImageFormat
+import android.util.Size
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.camera.core.CameraSelector
+import androidx.camera.core.ImageAnalysis
+import androidx.camera.core.ImageProxy
+import androidx.camera.core.Preview
+import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.camera.view.PreviewView
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.viewinterop.AndroidView
+import androidx.core.content.ContextCompat
+import androidx.lifecycle.LifecycleOwner
+import com.google.common.util.concurrent.ListenableFuture
+import com.google.mlkit.vision.barcode.BarcodeScannerOptions
+import com.google.mlkit.vision.barcode.BarcodeScanning
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.google.mlkit.vision.common.InputImage
+import com.vitorpamplona.amethyst.service.Nip19
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+
+@Composable
+fun QrCodeScanner(onScan: (String) -> Unit) {
+    val context = LocalContext.current
+    val lifecycleOwner = LocalLifecycleOwner.current
+    val cameraProviderFuture = remember { ProcessCameraProvider.getInstance(context) }
+
+    val cameraExecutor= Executors.newSingleThreadExecutor()
+
+    var hasCameraPermission by remember {
+        mutableStateOf(
+            ContextCompat.checkSelfPermission(
+                context,
+                Manifest.permission.CAMERA
+            ) == PackageManager.PERMISSION_GRANTED
+        )
+    }
+
+    val launcher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestPermission(),
+        onResult = { granted ->
+            hasCameraPermission = granted
+        }
+    )
+
+    val analyzer = QRCodeAnalyzer { result ->
+        result?.let {
+            try {
+                val nip19 = Nip19().uriToRoute(it)
+                val startingPage = when (nip19?.type) {
+                    Nip19.Type.USER -> "User/${nip19.hex}"
+                    Nip19.Type.NOTE -> "Note/${nip19.hex}"
+                    else -> null
+                }
+
+                if (startingPage != null) {
+                    onScan(startingPage)
+                }
+            } catch (e: Throwable) {
+                // QR can be anythign. do not throw errors.
+            }
+        }
+    }
+
+    DisposableEffect(key1 = true) {
+        launcher.launch(Manifest.permission.CAMERA)
+        onDispose() {
+            cameraProviderFuture.get().unbindAll()
+            cameraExecutor.shutdown()
+        }
+    }
+
+    Column() {
+        if (hasCameraPermission) {
+            AndroidView(
+                factory = { context ->
+                    val previewView = PreviewView(context)
+
+                    cameraProviderFuture.addListener({
+                        val cameraProvider = cameraProviderFuture.get()
+                        bindPreview(analyzer, previewView, cameraExecutor, cameraProvider, lifecycleOwner)
+                    }, ContextCompat.getMainExecutor(context))
+
+                    return@AndroidView previewView
+                },
+                modifier = Modifier.weight(1f)
+            )
+        }
+    }
+}
+
+fun bindPreview(
+    analyzer: ImageAnalysis.Analyzer,
+    previewView: PreviewView,
+    cameraExecutor: ExecutorService,
+    cameraProvider: ProcessCameraProvider,
+    lifecycleOwner: LifecycleOwner
+) {
+    val preview = Preview.Builder().build()
+
+    val selector = CameraSelector.Builder()
+        .requireLensFacing(CameraSelector.LENS_FACING_BACK)
+        .build()
+
+    preview.setSurfaceProvider(previewView.surfaceProvider)
+
+    val imageAnalysis = ImageAnalysis.Builder()
+        .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
+        .build()
+
+    imageAnalysis.setAnalyzer(
+        cameraExecutor,
+        analyzer
+    )
+
+    cameraProvider.bindToLifecycle(
+        lifecycleOwner,
+        selector,
+        imageAnalysis,
+        preview
+    )
+}
+
+class QRCodeAnalyzer(
+    private val onQrCodeScanned: (result: String?) -> Unit
+) : ImageAnalysis.Analyzer {
+
+    private val scanningOptions = BarcodeScannerOptions.Builder().setBarcodeFormats(Barcode.FORMAT_QR_CODE).build()
+
+    fun scanBarcodes(inputImage: InputImage) {
+        BarcodeScanning.getClient(scanningOptions).process(inputImage)
+            .addOnSuccessListener { barcodes ->
+                if (barcodes.isNotEmpty()) {
+                    onQrCodeScanned(barcodes[0].displayValue)
+                }
+            }
+            .addOnFailureListener {
+                it.printStackTrace()
+            }
+    }
+
+    @androidx.annotation.OptIn(androidx.camera.core.ExperimentalGetImage::class)
+    override fun analyze(imageProxy: ImageProxy) {
+        imageProxy.image?.let { image ->
+            val inputImage = InputImage.fromMediaImage(image, imageProxy.imageInfo.rotationDegrees)
+            scanBarcodes(inputImage)
+        }
+        imageProxy.close()
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/qrcode/ShowQRDialog.kt

@@ -0,0 +1,176 @@
+package com.vitorpamplona.amethyst.ui.navigation
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.Button
+import androidx.compose.material.ButtonDefaults
+import androidx.compose.material.MaterialTheme
+import androidx.compose.material.Surface
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import coil.compose.AsyncImage
+import coil.compose.rememberAsyncImagePainter
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.ui.actions.CloseButton
+import com.vitorpamplona.amethyst.ui.qrcode.QrCodeScanner
+import nostr.postr.toNpub
+
+@Composable
+fun ShowQRDialog(user: User, onScan: (String) -> Unit, onClose: () -> Unit) {
+  var presenting by remember { mutableStateOf(true) }
+
+  Dialog(
+    onDismissRequest = onClose,
+    properties = DialogProperties(usePlatformDefaultWidth = false)
+  ) {
+    Surface(modifier = Modifier.fillMaxSize()) {
+      Column(
+        modifier = Modifier
+          .background(MaterialTheme.colors.background)
+          .fillMaxSize(),
+      ) {
+        Row(
+          modifier = Modifier.fillMaxWidth().padding(10.dp),
+          horizontalArrangement = Arrangement.SpaceBetween,
+          verticalAlignment = Alignment.CenterVertically
+        ) {
+          CloseButton(onCancel = onClose)
+        }
+
+        Column(
+          modifier = Modifier.fillMaxSize().padding(horizontal = 10.dp),
+          verticalArrangement = Arrangement.SpaceBetween
+        ) {
+          if (presenting) {
+            Row(
+              horizontalArrangement = Arrangement.Center,
+              modifier = Modifier.fillMaxWidth().padding(horizontal = 30.dp, vertical = 10.dp)
+            ) {
+
+            }
+
+            Column(modifier = Modifier.fillMaxWidth()) {
+              Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+                AsyncImage(
+                  model = user.profilePicture() ?: "https://robohash.org/ohno.png",
+                  contentDescription = "Profile Image",
+                  placeholder = rememberAsyncImagePainter("https://robohash.org/${user.pubkeyHex}.png"),
+                  modifier = Modifier
+                    .width(100.dp)
+                    .height(100.dp)
+                    .clip(shape = CircleShape)
+                    .border(3.dp, MaterialTheme.colors.background, CircleShape)
+                    .background(MaterialTheme.colors.background)
+                )
+              }
+              Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+                Text(
+                  user.bestDisplayName() ?: "",
+                  modifier = Modifier.padding(top = 7.dp),
+                  fontWeight = FontWeight.Bold,
+                  fontSize = 18.sp
+                )
+              }
+              Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+                Text(" @${user.bestUsername()}", color = Color.LightGray)
+              }
+
+              Row(
+                horizontalArrangement = Arrangement.Center,
+                modifier = Modifier.fillMaxWidth().padding(horizontal = 35.dp, vertical = 10.dp)
+              ) {
+                QrCodeDrawer("nostr:${user.pubkey.toNpub()}")
+              }
+
+            }
+
+            Row(
+              horizontalArrangement = Arrangement.Center,
+              modifier = Modifier.fillMaxWidth().padding(horizontal = 30.dp, vertical = 10.dp)
+            ) {
+
+              Button(
+                onClick = { presenting = false },
+                shape = RoundedCornerShape(35.dp),
+                modifier = Modifier
+                  .fillMaxWidth()
+                  .height(50.dp),
+                colors = ButtonDefaults
+                  .buttonColors(
+                    backgroundColor = MaterialTheme.colors.primary
+                  )
+              ) {
+                Text(text = "Scan QR")
+              }
+            }
+
+          } else {
+
+            Row(horizontalArrangement = Arrangement.Center, modifier = Modifier.fillMaxWidth()) {
+              Text(
+                "Point to the QR Code",
+                modifier = Modifier.padding(top = 7.dp),
+                fontWeight = FontWeight.Bold,
+                fontSize = 25.sp
+              )
+            }
+
+            Row(
+              horizontalArrangement = Arrangement.Center,
+              modifier = Modifier.fillMaxWidth().padding(30.dp)
+            ) {
+              QrCodeScanner(onScan)
+            }
+
+            Row(
+              horizontalArrangement = Arrangement.Center,
+              modifier = Modifier.fillMaxWidth().padding(horizontal = 30.dp, vertical = 10.dp)
+            ) {
+
+              Button(
+                onClick = { presenting = true },
+                shape = RoundedCornerShape(35.dp),
+                modifier = Modifier
+                  .fillMaxWidth()
+                  .height(50.dp),
+                colors = ButtonDefaults
+                  .buttonColors(
+                    backgroundColor = MaterialTheme.colors.primary
+                  )
+              ) {
+                Text(text = "Show QR")
+              }
+            }
+
+          }
+
+
+        }
+      }
+    }
+  }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/AccountScreen.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Column
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
@@ -13,7 +14,7 @@ fun AccountScreen(accountStateViewModel: AccountStateViewModel, startingPage: St
   val accountState by accountStateViewModel.accountContent.collectAsState()
 
   Column() {
-    Crossfade(targetState = accountState) { state ->
+    Crossfade(targetState = accountState, animationSpec = tween(durationMillis = 100)) { state ->
       when (state) {
         is AccountState.LoggedOff -> {
           LoginPage(accountStateViewModel)

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/AccountStateViewModel.kt

@@ -2,34 +2,18 @@ package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import androidx.security.crypto.EncryptedSharedPreferences
 import com.vitorpamplona.amethyst.LocalPreferences
 import com.vitorpamplona.amethyst.ServiceManager
 import com.vitorpamplona.amethyst.model.Account
-import com.vitorpamplona.amethyst.model.DefaultChannels
-import com.vitorpamplona.amethyst.model.toByteArray
-import com.vitorpamplona.amethyst.service.NostrAccountDataSource
-import com.vitorpamplona.amethyst.service.NostrChatroomListDataSource
-import com.vitorpamplona.amethyst.service.NostrGlobalDataSource
-import com.vitorpamplona.amethyst.service.NostrHomeDataSource
-import com.vitorpamplona.amethyst.service.NostrNotificationDataSource
-import com.vitorpamplona.amethyst.service.NostrSingleEventDataSource
-import com.vitorpamplona.amethyst.service.NostrSingleUserDataSource
-import com.vitorpamplona.amethyst.service.NostrThreadDataSource
-import com.vitorpamplona.amethyst.service.relays.Client
-import com.vitorpamplona.amethyst.ui.MainActivity
 import fr.acinq.secp256k1.Hex
 import java.util.regex.Pattern
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import nostr.postr.Persona
 import nostr.postr.bechToBytes
-import nostr.postr.toHex
 
 class AccountStateViewModel(private val localPreferences: LocalPreferences): ViewModel() {
   private val _accountContent = MutableStateFlow<AccountState>(AccountState.LoggedOff)

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/CardFeedState.kt

@@ -18,12 +18,10 @@ class NoteCard(val note: Note): Card() {
 
 class LikeSetCard(val note: Note, val likeEvents: List<Note>): Card() {
     val createdAt = likeEvents.maxOf { it.event?.createdAt ?: 0 }
-
     override fun createdAt(): Long {
         return createdAt
     }
-
-    override fun id() = note.idHex + createdAt
+    override fun id() = note.idHex + "L" + createdAt
 }
 
 class BoostSetCard(val note: Note, val boostEvents: List<Note>): Card() {
@@ -33,7 +31,7 @@ class BoostSetCard(val note: Note, val boostEvents: List<Note>): Card() {
         return createdAt
     }
 
-    override fun id() = note.idHex + createdAt
+    override fun id() = note.idHex + "B" + createdAt
 }
 
 sealed class CardFeedState {

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/CardFeedView.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.lazy.LazyColumn
@@ -45,7 +46,7 @@ fun CardFeedView(viewModel: CardFeedViewModel, accountViewModel: AccountViewMode
         },
     ) {
         Column() {
-            Crossfade(targetState = feedState) { state ->
+            Crossfade(targetState = feedState, animationSpec = tween(durationMillis = 100)) { state ->
                 when (state) {
                     is CardFeedState.Empty -> {
                         FeedEmpty {

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/CardFeedViewModel.kt

@@ -9,8 +9,11 @@ import com.vitorpamplona.amethyst.model.LocalCache
 import com.vitorpamplona.amethyst.model.LocalCacheState
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.service.NostrDataSource
+import com.vitorpamplona.amethyst.service.model.ChannelCreateEvent
+import com.vitorpamplona.amethyst.service.model.ChannelMetadataEvent
 import com.vitorpamplona.amethyst.service.model.ReactionEvent
 import com.vitorpamplona.amethyst.service.model.RepostEvent
+import java.util.concurrent.atomic.AtomicBoolean
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
@@ -20,6 +23,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 
 class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
     private val _feedContent = MutableStateFlow<CardFeedState>(CardFeedState.Loading)
@@ -33,7 +37,6 @@ class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
             refreshSuspended()
         }
     }
-
     private fun refreshSuspended() {
         val notes = dataSource.loadTop()
 
@@ -56,9 +59,9 @@ class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
     private fun convertToCard(notes: List<Note>): List<Card> {
         val reactionsPerEvent = mutableMapOf<Note, MutableList<Note>>()
         notes
-            .filter { it.event is ReactionEvent }
+            .filter { it.event is ReactionEvent}
             .forEach {
-                val reactedPost = it.replyTo?.last()
+                val reactedPost = it.replyTo?.lastOrNull() { it.event !is ChannelMetadataEvent && it.event !is ChannelCreateEvent }
                 if (reactedPost != null)
                     reactionsPerEvent.getOrPut(reactedPost, { mutableListOf() }).add(it)
             }
@@ -69,7 +72,7 @@ class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
         notes
             .filter { it.event is RepostEvent }
             .forEach {
-                val boostedPost = it.replyTo?.last()
+                val boostedPost = it.replyTo?.lastOrNull() { it.event !is ChannelMetadataEvent && it.event !is ChannelCreateEvent }
                 if (boostedPost != null)
                     boostsPerEvent.getOrPut(boostedPost, { mutableListOf() }).add(it)
             }
@@ -81,7 +84,7 @@ class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
         return (reactionCards + boostCards + textNoteCards).sortedBy { it.createdAt() }.reversed()
     }
 
-    fun updateFeed(notes: List<Card>) {
+    private fun updateFeed(notes: List<Card>) {
         val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
             val currentState = feedContent.value
@@ -97,19 +100,18 @@ class CardFeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
         }
     }
 
+    var handlerWaiting = AtomicBoolean()
 
-    var handlerWaiting = false
-    fun invalidateData() {
-        synchronized(handlerWaiting) {
-            if (handlerWaiting) return
+    @Synchronized
+    private fun invalidateData() {
+        if (handlerWaiting.getAndSet(true)) return
 
-            handlerWaiting = true
-            val scope = CoroutineScope(Job() + Dispatchers.Default)
-            scope.launch {
-                delay(100)
-                refresh()
-                handlerWaiting = false
-            }
+        handlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Default)
+        scope.launch {
+            delay(100)
+            refresh()
+            handlerWaiting.set(false)
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/ChatroomFeedView.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.lazy.LazyColumn
@@ -36,7 +37,7 @@ fun ChatroomFeedView(viewModel: FeedViewModel, accountViewModel: AccountViewMode
     }
 
     Column() {
-        Crossfade(targetState = feedState) { state ->
+        Crossfade(targetState = feedState, animationSpec = tween(durationMillis = 100)) { state ->
             when (state) {
                 is FeedState.Empty -> {
                     FeedEmpty {
@@ -49,6 +50,11 @@ fun ChatroomFeedView(viewModel: FeedViewModel, accountViewModel: AccountViewMode
                     }
                 }
                 is FeedState.Loaded -> {
+                    LaunchedEffect(state.feed.value.firstOrNull()) {
+                        if (listState.firstVisibleItemIndex <= 1)
+                            listState.animateScrollToItem(0)
+                    }
+
                     LazyColumn(
                         contentPadding = PaddingValues(
                             top = 10.dp,
@@ -58,7 +64,7 @@ fun ChatroomFeedView(viewModel: FeedViewModel, accountViewModel: AccountViewMode
                         state = listState
                     ) {
                         var previousDate: String = ""
-                        itemsIndexed(state.feed.value, key = { index, item -> if (index == 0) index else item.idHex }) { index, item ->
+                        itemsIndexed(state.feed.value, key = { index, item -> item.idHex }) { index, item ->
                             ChatroomMessageCompose(item, routeForLastRead, accountViewModel = accountViewModel, navController = navController)
                         }
                     }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/ChatroomListFeedView.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.lazy.LazyColumn
@@ -48,7 +49,7 @@ fun ChatroomListFeedView(viewModel: FeedViewModel, accountViewModel: AccountView
         },
     ) {
         Column() {
-            Crossfade(targetState = feedState) { state ->
+            Crossfade(targetState = feedState, animationSpec = tween(durationMillis = 100)) { state ->
                 when (state) {
                     is FeedState.Empty -> {
                         FeedEmpty {
@@ -87,7 +88,7 @@ private fun FeedLoaded(
         ),
         state = listState
     ) {
-        itemsIndexed(state.feed.value, key = { index, item -> item.idHex }) { index, item ->
+        itemsIndexed(state.feed.value, key = { index, item -> if (index == 0) index else item.idHex }) { index, item ->
             ChatroomCompose(
                 item,
                 accountViewModel = accountViewModel,

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/FeedView.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
@@ -56,7 +57,7 @@ fun FeedView(viewModel: FeedViewModel, accountViewModel: AccountViewModel, navCo
     ) {
 
         Column() {
-            Crossfade(targetState = feedState) { state ->
+            Crossfade(targetState = feedState, animationSpec = tween(durationMillis = 100)) { state ->
                 when (state) {
                     is FeedState.Empty -> {
                         FeedEmpty {

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/FeedViewModel.kt

@@ -28,6 +28,7 @@ import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import nostr.postr.events.TextNoteEvent
+import java.util.concurrent.atomic.AtomicBoolean
 
 class NostrChannelFeedViewModel: FeedViewModel(NostrChannelDataSource)
 class NostrChatRoomFeedViewModel: FeedViewModel(NostrChatRoomDataSource)
@@ -57,13 +58,16 @@ class NostrChatroomListNewFeedViewModel: FeedViewModel(NostrChatroomListDataSour
 class NostrHomeFeedViewModel: FeedViewModel(NostrHomeDataSource) {
     override fun newListFromDataSource(): List<Note> {
         // Filter: no replies
-        return dataSource.feed().filter {
-            it.event is RepostEvent || it.replyTo == null || it.replyTo?.size == 0
-        }.take(100)
+        return dataSource.feed().filter { it.isNewThread() }.take(100)
     }
 }
 
-class NostrHomeRepliesFeedViewModel: FeedViewModel(NostrHomeDataSource) {}
+class NostrHomeRepliesFeedViewModel: FeedViewModel(NostrHomeDataSource) {
+    override fun newListFromDataSource(): List<Note> {
+        // Filter: only replies
+        return dataSource.feed().filter {! it.isNewThread() }.take(100)
+    }
+}
 
 
 abstract class FeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel() {
@@ -97,7 +101,7 @@ abstract class FeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel()
         }
     }
 
-    fun updateFeed(notes: List<Note>) {
+    private fun updateFeed(notes: List<Note>) {
         val currentState = feedContent.value
 
         if (notes.isEmpty()) {
@@ -110,18 +114,17 @@ abstract class FeedViewModel(val dataSource: NostrDataSource<Note>): ViewModel()
         }
     }
 
-    var handlerWaiting = false
-    fun invalidateData() {
-        synchronized(handlerWaiting) {
-            if (handlerWaiting) return
+    private var handlerWaiting = AtomicBoolean()
+    @Synchronized
+    private fun invalidateData() {
+        if (handlerWaiting.getAndSet(true)) return
 
-            handlerWaiting = true
-            val scope = CoroutineScope(Job() + Dispatchers.Default)
-            scope.launch {
-                delay(100)
-                refresh()
-                handlerWaiting = false
-            }
+        handlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Default)
+        scope.launch {
+            delay(100)
+            refresh()
+            handlerWaiting.set(false)
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/RelayFeedView.kt

@@ -0,0 +1,150 @@
+package com.vitorpamplona.amethyst.ui.screen
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import androidx.navigation.NavController
+import com.google.accompanist.swiperefresh.SwipeRefresh
+import com.google.accompanist.swiperefresh.rememberSwipeRefreshState
+import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.ui.actions.NewRelayListView
+import com.vitorpamplona.amethyst.ui.note.RelayCompose
+import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+
+class RelayFeedViewModel: ViewModel() {
+    val order = compareByDescending<User.RelayInfo> { it.lastEvent }.thenByDescending { it.counter }.thenBy { it.url }
+
+    private val _feedContent = MutableStateFlow<List<User.RelayInfo>>(emptyList())
+    val feedContent = _feedContent.asStateFlow()
+
+    var currentUser: User? = null
+
+    fun refresh() {
+        viewModelScope.launch(Dispatchers.Default) {
+            val beingUsed = currentUser?.relaysBeingUsed?.values ?: emptyList()
+            val beingUsedSet = currentUser?.relaysBeingUsed?.keys ?: emptySet()
+
+            val newRelaysFromRecord = currentUser?.relays?.entries?.mapNotNull {
+                if (it.key !in beingUsedSet) {
+                    User.RelayInfo(it.key, 0, 0)
+                } else {
+                    null
+                }
+            } ?: emptyList()
+
+            val newList = (beingUsed + newRelaysFromRecord).sortedWith(order)
+
+            _feedContent.update { newList }
+        }
+    }
+
+    inner class CacheListener: User.Listener() {
+        override fun onNewRelayInfo() { invalidateData() }
+        override fun onRelayChange() { invalidateData() }
+    }
+
+    val listener = CacheListener()
+
+    fun subscribeTo(user: User) {
+        currentUser = user
+        user.subscribe(listener)
+        invalidateData()
+    }
+
+    fun unsubscribeTo(user: User) {
+        user.unsubscribe(listener)
+        currentUser = null
+    }
+
+    override fun onCleared() {
+        currentUser?.let { unsubscribeTo(it) }
+    }
+
+    var handlerWaiting = false
+    @Synchronized
+    fun invalidateData() {
+        if (handlerWaiting) return
+
+        handlerWaiting = true
+        val scope = CoroutineScope(Job() + Dispatchers.Default)
+        scope.launch {
+            delay(100)
+            refresh()
+            handlerWaiting = false
+        }
+    }
+}
+
+@Composable
+fun RelayFeedView(viewModel: RelayFeedViewModel, accountViewModel: AccountViewModel, navController: NavController) {
+    val accountState by accountViewModel.accountLiveData.observeAsState()
+    val account = accountState?.account ?: return
+
+    val feedState by viewModel.feedContent.collectAsState()
+
+    var isRefreshing by remember { mutableStateOf(false) }
+    val swipeRefreshState = rememberSwipeRefreshState(isRefreshing)
+
+    var wantsToAddRelay by remember {
+        mutableStateOf( "")
+    }
+
+    if (wantsToAddRelay.isNotEmpty())
+        NewRelayListView({ wantsToAddRelay = "" }, account, wantsToAddRelay)
+
+    LaunchedEffect(isRefreshing) {
+        if (isRefreshing) {
+            viewModel.refresh()
+            isRefreshing = false
+        }
+    }
+
+    SwipeRefresh(
+        state = swipeRefreshState,
+        onRefresh = {
+            isRefreshing = true
+        },
+    ) {
+        Column() {
+            val listState = rememberLazyListState()
+
+            LazyColumn(
+                contentPadding = PaddingValues(
+                    top = 10.dp,
+                    bottom = 10.dp
+                ),
+                state = listState
+            ) {
+                itemsIndexed(feedState, key = { _, item -> item.url }) { index, item ->
+                    RelayCompose(item,
+                        accountViewModel = accountViewModel,
+                        navController = navController,
+                        onAddRelay = { wantsToAddRelay = item.url },
+                        onRemoveRelay = { wantsToAddRelay = item.url }
+                    )
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/ThreadFeedView.kt

@@ -1,7 +1,9 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
@@ -14,6 +16,7 @@ import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.Divider
+import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
@@ -31,6 +34,7 @@ import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.compose.runtime.collectAsState
+import androidx.compose.ui.text.style.TextDirection
 import androidx.navigation.NavController
 import coil.compose.AsyncImage
 import coil.compose.rememberAsyncImagePainter
@@ -38,8 +42,12 @@ import com.google.accompanist.swiperefresh.SwipeRefresh
 import com.google.accompanist.swiperefresh.rememberSwipeRefreshState
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.ui.components.RichTextViewer
+import com.vitorpamplona.amethyst.ui.components.TranslateableRichTextViewer
 import com.vitorpamplona.amethyst.ui.note.BlankNote
+import com.vitorpamplona.amethyst.ui.note.HiddenNote
+import com.vitorpamplona.amethyst.ui.note.NoteAuthorPicture
 import com.vitorpamplona.amethyst.ui.note.NoteCompose
+import com.vitorpamplona.amethyst.ui.note.NoteUsernameDisplay
 import com.vitorpamplona.amethyst.ui.note.ReactionsRow
 import com.vitorpamplona.amethyst.ui.note.UserPicture
 import com.vitorpamplona.amethyst.ui.note.UsernameDisplay
@@ -69,7 +77,7 @@ fun ThreadFeedView(noteId: String, viewModel: FeedViewModel, accountViewModel: A
         },
     ) {
         Column() {
-            Crossfade(targetState = feedState) { state ->
+            Crossfade(targetState = feedState, animationSpec = tween(durationMillis = 100)) { state ->
                 when (state) {
                     is FeedState.Empty -> {
                         FeedEmpty {
@@ -157,15 +165,26 @@ fun NoteMaster(baseNote: Note, accountViewModel: AccountViewModel, navController
     val noteState by baseNote.live.observeAsState()
     val note = noteState?.note
 
+    val noteReportsState by baseNote.liveReports.observeAsState()
+    val noteForReports = noteReportsState?.note ?: return
+
     val accountState by accountViewModel.accountLiveData.observeAsState()
     val account = accountState?.account ?: return
 
+    var showHiddenNote by remember { mutableStateOf(false) }
+
     if (note?.event == null) {
         BlankNote()
+    } else if (!account.isAcceptable(noteForReports)) {
+        HiddenNote(
+            account.getRelevantReports(noteForReports),
+            account.userProfile(),
+            Modifier,
+            false,
+            navController,
+            onClick = { showHiddenNote = true }
+        )
     } else {
-        val authorState by note.author!!.live.observeAsState()
-        val author = authorState?.user
-
         Column(
             Modifier
                 .fillMaxWidth()
@@ -173,17 +192,21 @@ fun NoteMaster(baseNote: Note, accountViewModel: AccountViewModel, navController
             Row(modifier = Modifier
                 .padding(start = 12.dp, end = 12.dp)
                 .clickable(onClick = {
-                    author?.let {
+                    note.author?.let {
                         navController.navigate("User/${it.pubkeyHex}")
                     }
                 })
             ) {
-                UserPicture(user = author, navController, userAccount = account.userProfile(), size = 55.dp)
+                NoteAuthorPicture(
+                    note = baseNote,
+                    navController = navController,
+                    userAccount = account.userProfile(),
+                    size = 55.dp
+                )
 
                 Column(modifier = Modifier.padding(start = 10.dp)) {
                     Row(verticalAlignment = Alignment.CenterVertically) {
-                        if (author != null)
-                            UsernameDisplay(author)
+                        NoteUsernameDisplay(baseNote)
                     }
 
                     Row(verticalAlignment = Alignment.CenterVertically) {
@@ -198,8 +221,20 @@ fun NoteMaster(baseNote: Note, accountViewModel: AccountViewModel, navController
             Row(modifier = Modifier.padding(horizontal = 12.dp)) {
                 Column() {
                     val eventContent = note.event?.content
-                    if (eventContent != null)
-                        RichTextViewer(eventContent, note.event?.tags, navController)
+
+                    val canPreview = note.author == account.userProfile()
+                      || (note.author?.let { account.userProfile().isFollowing(it) } ?: true )
+                      || !noteForReports.hasAnyReports()
+
+                    if (eventContent != null) {
+                        TranslateableRichTextViewer(
+                            eventContent,
+                            canPreview,
+                            note.event?.tags,
+                            accountViewModel,
+                            navController
+                        )
+                    }
 
                     ReactionsRow(note, accountViewModel)
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/UserFeedView.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.lazy.LazyColumn
@@ -43,7 +44,7 @@ fun UserFeedView(viewModel: UserFeedViewModel, accountViewModel: AccountViewMode
         },
     ) {
         Column() {
-            Crossfade(targetState = feedState) { state ->
+            Crossfade(targetState = feedState, animationSpec = tween(durationMillis = 100)) { state ->
                 when (state) {
                     is UserFeedState.Empty -> {
                         FeedEmpty {

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/UserFeedViewModel.kt

@@ -22,6 +22,8 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import java.util.concurrent.atomic.AtomicBoolean
 
 class NostrUserProfileFollowsUserFeedViewModel(): UserFeedViewModel(
     NostrUserProfileFollowsDataSource
@@ -46,6 +48,7 @@ open class UserFeedViewModel(val dataSource: NostrDataSource<User>): ViewModel()
         }
     }
 
+
     private fun refreshSuspended() {
         val notes = dataSource.loadTop()
 
@@ -59,11 +62,10 @@ open class UserFeedViewModel(val dataSource: NostrDataSource<User>): ViewModel()
         }
     }
 
-    fun updateFeed(notes: List<User>) {
+    private fun updateFeed(notes: List<User>) {
         val scope = CoroutineScope(Job() + Dispatchers.Main)
         scope.launch {
             val currentState = feedContent.value
-
             if (notes.isEmpty()) {
                 _feedContent.update { UserFeedState.Empty }
             } else if (currentState is UserFeedState.Loaded) {
@@ -75,18 +77,18 @@ open class UserFeedViewModel(val dataSource: NostrDataSource<User>): ViewModel()
         }
     }
 
-    var handlerWaiting = false
-    fun invalidateData() {
-        synchronized(handlerWaiting) {
-            if (handlerWaiting) return
+    var handlerWaiting = AtomicBoolean()
 
-            handlerWaiting = true
-            val scope = CoroutineScope(Job() + Dispatchers.Default)
-            scope.launch {
-                delay(100)
-                refresh()
-                handlerWaiting = false
-            }
+    @Synchronized
+    private fun invalidateData() {
+        if (handlerWaiting.getAndSet(true)) return
+
+        handlerWaiting.set(true)
+        val scope = CoroutineScope(Job() + Dispatchers.Default)
+        scope.launch {
+            delay(100)
+            refresh()
+            handlerWaiting.set(false)
         }
     }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt

@@ -9,16 +9,23 @@ import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.AccountState
 import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.User
+import com.vitorpamplona.amethyst.service.model.ReportEvent
+import java.util.Locale
 
 class AccountViewModel(private val account: Account): ViewModel() {
   val accountLiveData: LiveData<AccountState> = account.live.map { it }
+  val accountLanguagesLiveData: LiveData<AccountState> = account.liveLanguages.map { it }
 
   fun reactTo(note: Note) {
     account.reactTo(note)
   }
 
-  fun report(note: Note) {
-    account.report(note)
+  fun report(note: Note, type: ReportEvent.ReportType) {
+    account.report(note, type)
+  }
+
+  fun report(user: User, type: ReportEvent.ReportType) {
+    account.report(user, type)
   }
 
   fun boost(note: Note) {
@@ -42,4 +49,14 @@ class AccountViewModel(private val account: Account): ViewModel() {
     account.showUser(user.pubkeyHex)
     LocalPreferences(ctx).saveToEncryptedStorage(account)
   }
+
+  fun translateTo(lang: Locale, ctx: Context) {
+    account.updateTranslateTo(lang.language)
+    LocalPreferences(ctx).saveToEncryptedStorage(account)
+  }
+
+  fun dontTranslateFrom(lang: String, ctx: Context) {
+    account.addDontTranslateFrom(lang)
+    LocalPreferences(ctx).saveToEncryptedStorage(account)
+  }
 }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/ChannelScreen.kt

@@ -2,6 +2,7 @@ package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -14,6 +15,8 @@ import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.Button
 import androidx.compose.material.ButtonDefaults
 import androidx.compose.material.Divider
+import androidx.compose.material.DropdownMenu
+import androidx.compose.material.DropdownMenuItem
 import androidx.compose.material.Icon
 import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
@@ -62,6 +65,7 @@ import com.vitorpamplona.amethyst.ui.actions.NewPostView
 import com.vitorpamplona.amethyst.ui.actions.PostButton
 import com.vitorpamplona.amethyst.ui.navigation.Route
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
+import nostr.postr.toNpub
 
 @Composable
 fun ChannelScreen(channelId: String?, accountViewModel: AccountViewModel, accountStateViewModel: AccountStateViewModel, navController: NavController) {
@@ -112,9 +116,7 @@ fun ChannelScreen(channelId: String?, accountViewModel: AccountViewModel, accoun
                         capitalization = KeyboardCapitalization.Sentences
                     ),
                     shape = RoundedCornerShape(25.dp),
-                    modifier = Modifier
-                        .weight(1f, true)
-                        .padding(end = 10.dp),
+                    modifier = Modifier.weight(1f, true),
                     placeholder = {
                         Text(
                             text = "reply here.. ",
@@ -188,12 +190,12 @@ fun ChannelHeader(baseChannel: Channel, account: Account, accountStateViewModel:
                     channel?.let {
                         if (channel.creator == account.userProfile()) {
                             EditButton(account, it)
+                        }
+
+                        if (account.followingChannels.contains(channel.idHex)) {
+                            LeaveButton(account, channel, navController)
                         } else {
-                            if (account.followingChannels.contains(channel.idHex)) {
-                                LeaveButton(account, channel, navController)
-                            } else {
-                                JoinButton(account, channel, navController)
-                            }
+                            JoinButton(account, channel, navController)
                         }
                     }
                 }
@@ -213,10 +215,11 @@ private fun NoteCopyButton(
     note: Channel
 ) {
     val clipboardManager = LocalClipboardManager.current
+    var popupExpanded by remember { mutableStateOf(false) }
 
     Button(
         modifier = Modifier.padding(horizontal = 3.dp).width(50.dp),
-        onClick = { clipboardManager.setText(AnnotatedString(note.id.toNote())) },
+        onClick = { popupExpanded = true },
         shape = RoundedCornerShape(20.dp),
         colors = ButtonDefaults
             .buttonColors(
@@ -228,6 +231,15 @@ private fun NoteCopyButton(
             imageVector = Icons.Default.Share,
             contentDescription = "Copies the Note ID to the clipboard for sharing"
         )
+
+        DropdownMenu(
+            expanded = popupExpanded,
+            onDismissRequest = { popupExpanded = false }
+        ) {
+            DropdownMenuItem(onClick = { clipboardManager.setText(AnnotatedString(note.id.toNote())); popupExpanded = false }) {
+                Text("Copy Channel ID (Note) to the Clipboard")
+            }
+        }
     }
 }
 
@@ -272,7 +284,8 @@ private fun JoinButton(account: Account, channel: Channel, navController: NavCon
         colors = ButtonDefaults
             .buttonColors(
                 backgroundColor = MaterialTheme.colors.primary
-            )
+            ),
+        contentPadding = PaddingValues(vertical = 6.dp, horizontal = 16.dp)
     ) {
         Text(text = "Join", color = Color.White)
     }
@@ -293,7 +306,8 @@ private fun LeaveButton(account: Account, channel: Channel, navController: NavCo
         colors = ButtonDefaults
             .buttonColors(
                 backgroundColor = MaterialTheme.colors.primary
-            )
+            ),
+        contentPadding = PaddingValues(vertical = 6.dp, horizontal = 16.dp)
     ) {
         Text(text = "Leave", color = Color.White)
     }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/ChatroomScreen.kt

@@ -41,6 +41,7 @@ import coil.compose.rememberAsyncImagePainter
 import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.service.NostrChatRoomDataSource
 import com.vitorpamplona.amethyst.ui.actions.PostButton
+import com.vitorpamplona.amethyst.ui.note.UserPicture
 import com.vitorpamplona.amethyst.ui.note.UsernameDisplay
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 
@@ -70,13 +71,18 @@ fun ChatroomScreen(userId: String?, accountViewModel: AccountViewModel, navContr
             }
 
             Column(
-                modifier = Modifier.fillMaxHeight().padding(vertical = 0.dp).weight(1f, true)
+                modifier = Modifier
+                    .fillMaxHeight()
+                    .padding(vertical = 0.dp)
+                    .weight(1f, true)
             ) {
                 ChatroomFeedView(feedViewModel, accountViewModel, navController, "Room/${userId}")
             }
 
             //LAST ROW
-            Row(modifier = Modifier.padding(10.dp).fillMaxWidth(),
+            Row(modifier = Modifier
+                .padding(10.dp)
+                .fillMaxWidth(),
                 horizontalArrangement = Arrangement.SpaceBetween,
                 verticalAlignment = Alignment.CenterVertically
             ) {
@@ -118,29 +124,29 @@ fun ChatroomScreen(userId: String?, accountViewModel: AccountViewModel, navContr
 
 @Composable
 fun ChatroomHeader(baseUser: User, accountViewModel: AccountViewModel, navController: NavController) {
-    val authorState by baseUser.live.observeAsState()
-    val author = authorState?.user
-
     Column(modifier = Modifier.clickable(
-            onClick = { navController.navigate("User/${author?.pubkeyHex}") }
+            onClick = { navController.navigate("User/${baseUser.pubkeyHex}") }
         )
     ) {
         Column(modifier = Modifier.padding(12.dp)) {
             Row(verticalAlignment = Alignment.CenterVertically) {
 
+                val authorState by baseUser.liveMetadata.observeAsState()
+                val author = authorState?.user
+
                 AsyncImage(
                     model = author?.profilePicture(),
                     placeholder = rememberAsyncImagePainter("https://robohash.org/${author?.pubkeyHex}.png"),
                     contentDescription = "Profile Image",
                     modifier = Modifier
-                        .width(35.dp).height(35.dp)
+                        .width(35.dp)
+                        .height(35.dp)
                         .clip(shape = CircleShape)
                 )
 
                 Column(modifier = Modifier.padding(start = 10.dp)) {
                     Row(verticalAlignment = Alignment.CenterVertically) {
-                        if (author != null)
-                            UsernameDisplay(author)
+                        UsernameDisplay(baseUser)
                     }
                 }
             }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/HomeScreen.kt

@@ -9,14 +9,9 @@ import androidx.compose.material.TabRow
 import androidx.compose.material.TabRowDefaults
 import androidx.compose.material.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.livedata.observeAsState
-import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.navigation.NavController
@@ -24,15 +19,8 @@ import com.google.accompanist.pager.ExperimentalPagerApi
 import com.google.accompanist.pager.HorizontalPager
 import com.google.accompanist.pager.pagerTabIndicatorOffset
 import com.google.accompanist.pager.rememberPagerState
-import com.vitorpamplona.amethyst.NotificationCache
-import com.vitorpamplona.amethyst.service.NostrHomeDataSource
-import com.vitorpamplona.amethyst.service.NostrUserProfileDataSource
-import com.vitorpamplona.amethyst.service.NostrUserProfileFollowersDataSource
-import com.vitorpamplona.amethyst.service.NostrUserProfileFollowsDataSource
 import com.vitorpamplona.amethyst.ui.navigation.Route
-import com.vitorpamplona.amethyst.ui.navigation.Routes
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
-import java.lang.System.currentTimeMillis
 import kotlinx.coroutines.launch
 
 @OptIn(ExperimentalPagerApi::class)
@@ -65,7 +53,7 @@ fun HomeScreen(accountViewModel: AccountViewModel, navController: NavController)
                     selected = pagerState.currentPage == 0,
                     onClick = { coroutineScope.launch { pagerState.animateScrollToPage(0) } },
                     text = {
-                        Text(text = "Follows")
+                        Text(text = "New Threads")
                     }
                 )
 
@@ -73,7 +61,7 @@ fun HomeScreen(accountViewModel: AccountViewModel, navController: NavController)
                     selected = pagerState.currentPage == 1,
                     onClick = { coroutineScope.launch { pagerState.animateScrollToPage(1) } },
                     text = {
-                        Text(text = "Follows + Replies")
+                        Text(text = "Conversations")
                     }
                 )
             }

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/MainScreen.kt

@@ -1,6 +1,7 @@
 package com.vitorpamplona.amethyst.ui.screen
 
 import androidx.compose.animation.Crossfade
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.padding
@@ -61,7 +62,7 @@ fun FloatingButton(navController: NavHostController, accountViewModel: AccountSt
     val accountState by accountViewModel.accountContent.collectAsState()
 
     if (currentRoute(navController) == Route.Home.route) {
-        Crossfade(targetState = accountState) { state ->
+        Crossfade(targetState = accountState, animationSpec = tween(durationMillis = 100)) { state ->
             when (state) {
                 is AccountState.LoggedInViewOnly -> {
                     // Does nothing.
@@ -77,7 +78,7 @@ fun FloatingButton(navController: NavHostController, accountViewModel: AccountSt
     }
 
     if (currentRoute(navController) == Route.Message.route) {
-        Crossfade(targetState = accountState) { state ->
+        Crossfade(targetState = accountState, animationSpec = tween(durationMillis = 100)) { state ->
             when (state) {
                 is AccountState.LoggedInViewOnly -> {
                     // Does nothing.