improve connection to relay, better handling of response from relay, better handling of the loading screen

app/src/main/java/com/greenart7c3/nostrsigner/relays/Relay.kt

@@ -167,8 +167,10 @@ class Relay(
 
             try {
                 processNewRelayMessage(text)
+                onLoading(false)
             } catch (e: Throwable) {
                 if (e is CancellationException) throw e
+                onLoading(false)
                 e.printStackTrace()
                 text.chunked(2000) { chunked ->
                     listeners.forEach { it.onError(this@Relay, "", Error("Problem with $chunked")) }
@@ -325,6 +327,10 @@ class Relay(
         }
     }
 
+    fun isReady(): Boolean {
+        return this.isReady
+    }
+
     fun disconnect() {
         Log.d("Relay", "Relay.disconnect $url")
         checkNotInMainThread()
@@ -436,7 +442,11 @@ class Relay(
             authResponse[signedEvent.id] = false
             // specific protocol for this event.
             val event = """["AUTH",${signedEvent.toJson()}]"""
-            socket?.send(event)
+            var result = socket?.send(event)
+            while (result == false || result == null) {
+                Log.d("Relay", "Relay.send failed trying again $url $event")
+                result = socket?.send(event)
+            }
             eventUploadCounterInBytes += event.bytesUsedInMemory()
         } else {
             if (write) {

app/src/main/java/com/greenart7c3/nostrsigner/relays/RelayPool.kt

@@ -46,6 +46,10 @@ object RelayPool : Relay.Listener {
         return relays.size
     }
 
+    fun getAll(): List<Relay> {
+        return relays
+    }
+
     fun connectedRelays(): Int {
         return relays.count { it.isConnected() }
     }

app/src/main/java/com/greenart7c3/nostrsigner/ui/AccountScreen.kt

@@ -6,14 +6,20 @@ 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.SideEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.rememberCoroutineScope
 import com.greenart7c3.nostrsigner.models.IntentData
 import com.greenart7c3.nostrsigner.nostrsigner
+import com.greenart7c3.nostrsigner.relays.Relay
+import com.greenart7c3.nostrsigner.relays.RelayPool
 import com.greenart7c3.nostrsigner.service.IntentUtils
 import com.vitorpamplona.quartz.encoders.toNpub
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.launch
 
 @SuppressLint("StateFlowValueCalledInComposition", "UnrememberedMutableState")
 @Composable
@@ -54,6 +60,21 @@ fun AccountScreen(
                     }
                     val database = nostrsigner.instance.getDatabase(state.account.keyPair.pubKey.toNpub())
                     val localRoute = mutableStateOf(newIntents.firstNotNullOfOrNull { it.route } ?: state.route)
+                    val scope = rememberCoroutineScope()
+
+                    SideEffect {
+                        scope.launch(Dispatchers.IO) {
+                            database.applicationDao().getAllApplications().forEach {
+                                it.application.relays.forEach { url ->
+                                    if (url.isNotBlank()) {
+                                        if (RelayPool.getRelays(url).isEmpty()) {
+                                            RelayPool.addRelay(Relay(url))
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
 
                     MainScreen(state.account, accountStateViewModel, newIntents, packageName, appName, localRoute, database)
                 }

app/src/main/java/com/greenart7c3/nostrsigner/ui/MainScreen.kt

@@ -87,6 +87,7 @@ import com.greenart7c3.nostrsigner.models.IntentData
 import com.greenart7c3.nostrsigner.models.Permission
 import com.greenart7c3.nostrsigner.models.ReturnType
 import com.greenart7c3.nostrsigner.models.SignerType
+import com.greenart7c3.nostrsigner.relays.RelayPool
 import com.greenart7c3.nostrsigner.service.EventNotificationConsumer
 import com.greenart7c3.nostrsigner.service.IntentUtils
 import com.greenart7c3.nostrsigner.service.PushNotificationUtils
@@ -100,6 +101,7 @@ import com.vitorpamplona.quartz.encoders.toNpub
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import java.io.ByteArrayOutputStream
 import java.util.Base64
@@ -129,7 +131,28 @@ fun sendResult(
     permissions: List<Permission>? = null,
     appName: String? = null
 ) {
+    onLoading(true)
     GlobalScope.launch(Dispatchers.IO) {
+        if (intentData.bunkerRequest != null) {
+            RelayPool.getAll().forEach { relay ->
+                if (!relay.isConnected()) {
+                    relay.connectAndRun {
+                        GlobalScope.launch(Dispatchers.IO) {
+                            delay(60000)
+                            if (relay.isConnected()) {
+                                relay.disconnect()
+                            }
+                        }
+                    }
+                }
+            }
+            var count = 0
+            while (RelayPool.getAll().any { !it.isReady() } && count < 10) {
+                count++
+                Thread.sleep(1000)
+            }
+        }
+
         if (intentData.bunkerRequest != null && intentData.bunkerRequest.secret.isNotBlank()) {
             val application = database.applicationDao().getBySecret(intentData.bunkerRequest.secret)
             application?.let {

app/src/main/java/com/greenart7c3/nostrsigner/ui/components/MultiEventHomeScreen.kt

@@ -47,6 +47,7 @@ import com.greenart7c3.nostrsigner.models.Account
 import com.greenart7c3.nostrsigner.models.IntentData
 import com.greenart7c3.nostrsigner.models.Permission
 import com.greenart7c3.nostrsigner.models.SignerType
+import com.greenart7c3.nostrsigner.relays.RelayPool
 import com.greenart7c3.nostrsigner.service.AmberUtils
 import com.greenart7c3.nostrsigner.service.ApplicationNameCache
 import com.greenart7c3.nostrsigner.service.EventNotificationConsumer
@@ -59,9 +60,13 @@ import com.greenart7c3.nostrsigner.ui.Result
 import com.greenart7c3.nostrsigner.ui.theme.ButtonBorder
 import com.vitorpamplona.quartz.events.Event
 import com.vitorpamplona.quartz.events.LnZapRequestEvent
+import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 
+@OptIn(DelicateCoroutinesApi::class)
 @Composable
 fun MultiEventHomeScreen(
     intents: List<IntentData>,
@@ -132,6 +137,25 @@ fun MultiEventHomeScreen(
                         try {
                             val activity = context.getAppCompatActivity()
                             val results = mutableListOf<Result>()
+                            if (intents.any { it.bunkerRequest != null }) {
+                                RelayPool.getAll().forEach { relay ->
+                                    if (!relay.isConnected()) {
+                                        relay.connectAndRun {
+                                            GlobalScope.launch(Dispatchers.IO) {
+                                                delay(60000)
+                                                if (relay.isConnected()) {
+                                                    relay.disconnect()
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                                var count = 0
+                                while (RelayPool.getAll().any { !it.isReady() } && count < 10) {
+                                    count++
+                                    Thread.sleep(1000)
+                                }
+                            }
 
                             for (intentData in intents) {
                                 val localAccount =