refactor: move podcast show/trailer, geocache log and visualizer settings to commonsUI

- BookmarkGroupItemOptions shares through rememberTextSharer instead of an ACTION_SEND intent. - DocumentSelectSingle (expect/actual) picks one document by MIME type; the trailer composer uses it, and the geocache log uses GallerySelectSingle(imagesOnly = true). - MediaUri.lastPathSegmentOrNull() replaces Uri.lastPathSegment in the composer view models. - rfc2822Date (commons, tested against java.time's RFC_1123_DATE_TIME) replaces java.time in PodcastComposerMedia; the MediaMetadataRetriever probe moves to the app-side PodcastAudioProbe. - The canvas-only FakeWaveformAnimation moves to commonsUI; the media3 variant stays in the app. - Moved (9 files): the audio visualizer settings, geocache find log, podcast show editor and podcast trailer screens with their view models. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S7FuNBSKiyVecARSoE4B9P
2026-10-05 19:28:25 +00:00 · 2026-09-29 20:04:24 +00:00
parent 297abd11e1
commit ab517f3af5
27 changed files with 363 additions and 174 deletions
@@ -20,29 +20,15 @@
 */
 package com.vitorpamplona.amethyst.service.playback.composable.wavefront

-import androidx.compose.foundation.Canvas
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.requiredHeight
-import androidx.compose.foundation.layout.width
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.MutableFloatState
 import androidx.compose.runtime.mutableFloatStateOf
 import androidx.compose.runtime.mutableIntStateOf
 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.Size
-import androidx.compose.ui.graphics.Brush
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.drawscope.Fill
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
 import androidx.media3.common.Player
-import com.vitorpamplona.amethyst.commons.ui.theme.ThemeComparisonColumn
+import com.vitorpamplona.amethyst.commons.ui.components.wavefront.FakeWaveformAnimation
 import com.vitorpamplona.amethyst.service.playback.composable.MediaControllerState
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
@@ -50,7 +36,6 @@ import kotlinx.coroutines.flow.conflate
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.onStart
-import kotlin.math.sin

@Composable
 fun FakeWaveformAnimation(
@@ -97,60 +82,3 @@ fun pollCurrentPosition(controller: Player) =
        emit(controller.currentPosition)
    }.flowOn(Dispatchers.IO)
        .conflate()
-
-@Preview
-@Composable
-fun FakeWaveformAnimationPreview() {
-    val state =
-        remember {
-            mutableFloatStateOf((500 % 1000.0f) / 1000.0f)
-        }
-    ThemeComparisonColumn {
-        FakeWaveformAnimation(state, 50, Modifier.width(200.dp))
-    }
-}
-
-@Composable
-fun FakeWaveformAnimation(
-    waveformProgress: MutableFloatState,
-    barCount: Int = 50,
-    modifier: Modifier = Modifier,
-) {
-    val barBrush =
-        Brush.linearGradient(
-            colors = listOf(Color(0xff2598cf), Color(0xff652d80)),
-            start = Offset(0.2f * 128f, 0f),
-            end = Offset(0.2f * 128f + 128f, 0f),
-        )
-
-    Canvas(
-        modifier =
-            modifier
-                .fillMaxWidth()
-                .requiredHeight(48.dp)
-                .padding(horizontal = 10.dp),
-    ) {
-        val barWidth = 3.dp.toPx()
-        val barPadding = 2.dp.toPx()
-        val barRadius = 2.dp.toPx()
-        val totalBarWidth = barWidth + barPadding
-        val startX = (size.width - (barCount * totalBarWidth - barPadding)) / 2f
-
-        for (i in 0 until barCount) {
-            val phase = (i.toFloat() / barCount) * 2f * Math.PI.toFloat()
-            val wave = sin(waveformProgress.floatValue * 2f * Math.PI.toFloat() + phase)
-            val barFraction = ((wave + 1f) / 2f)
-            val barHeight = size.height * barFraction
-            val x = startX + i * totalBarWidth
-            val y = (size.height - barHeight) / 2f
-
-            drawRoundRect(
-                brush = barBrush,
-                topLeft = Offset(x, y),
-                size = Size(barWidth, barHeight),
-                cornerRadius = CornerRadius(barRadius, barRadius),
-                style = Fill,
-            )
-        }
-    }
-}
@@ -121,6 +121,7 @@ import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.favorites.FavoriteA
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.followPacks.list.FollowPacksScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.geocaches.hunt.GeocacheHuntScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.geocaches.hunt.NewGeocacheHuntScreen
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.geocaches.log.LogGeocacheFindScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.geohash.GeoHashScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.gitRepositories.GitRepositoriesScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.hashtag.HashtagScreen
@@ -143,6 +144,8 @@ import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.nsites.NsitesScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.pinnednotes.PinnedNotesScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.PodcastEpisodesScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.PodcastsScreen
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring.EditPodcastShowScreen
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring.NewPodcastTrailerScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring.PodcastAuthoringScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.polls.PollsScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.polls.results.PollResultsScreen
@@ -158,6 +161,7 @@ import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.relays.eventsync.Ev
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.relays.nip43.RelayMembersScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.relays.vanish.VanishEventsScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.settings.AllSettingsScreen
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.settings.AudioVisualizerSettingsScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.settings.BlockedUsersScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.settings.BottomBarSettingsScreen
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.settings.CallSettingsScreen
@@ -279,7 +283,6 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.followPacks.feed.FollowPack
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.geocaches.GeocachesScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.geocaches.create.NewGeocacheScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.geocaches.detail.GeocacheDetailScreen
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.geocaches.log.LogGeocacheFindScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.geohash.GeoHashPostScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.GitNewIssueScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.gitRepo.GitRepositoryCodeScreen
@@ -306,9 +309,7 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.NotificationS
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.notifications.publicMessages.NewPublicMessageScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.pictures.PicturesScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.PodcastScreen
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring.EditPodcastShowScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring.NewPodcastEpisodeScreen
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring.NewPodcastTrailerScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.polls.PollPostScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.profile.ProfileScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.profile.payment.SendPaymentScreen
@@ -319,7 +320,6 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.relays.subscriptions.Active
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.relays.vanish.RequestToVanishScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.scheduledposts.ScheduledPostsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.search.SearchScreen
-import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.AudioVisualizerSettingsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.ComposeSettingsScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.NIP47SetupScreen
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.settings.NamecoinSettingsScreen
@@ -20,7 +20,6 @@
 */
 package com.vitorpamplona.amethyst.ui.screen.loggedIn.bookmarkgroups.display

-import android.content.Intent
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.State
 import androidx.compose.runtime.getValue
@@ -29,7 +28,6 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.platform.LocalClipboard
-import androidx.compose.ui.platform.LocalContext
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.commons.model.Note
@@ -60,6 +58,7 @@ import com.vitorpamplona.amethyst.commons.ui.components.GenericLoadable
 import com.vitorpamplona.amethyst.commons.ui.components.M3ActionDialog
 import com.vitorpamplona.amethyst.commons.ui.components.M3ActionRow
 import com.vitorpamplona.amethyst.commons.ui.components.M3ActionSection
+import com.vitorpamplona.amethyst.commons.ui.components.rememberTextSharer
 import com.vitorpamplona.amethyst.commons.ui.components.util.setText
 import com.vitorpamplona.amethyst.commons.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.commons.ui.navigation.routes.routeEditDraftTo
@@ -171,7 +170,7 @@ fun BookmarkGroupItemOptionsMenu(
        onDismiss = onDismiss,
    ) {
        val clipboardManager = LocalClipboard.current
-        val actContext = LocalContext.current
+        val sharer = rememberTextSharer()
        val scope = rememberCoroutineScope()

        // Bookmark Management section
@@ -240,23 +239,7 @@ fun BookmarkGroupItemOptionsMenu(
                }
            }
            M3ActionRow(icon = MaterialSymbols.Share, text = stringRes(Res.string.quick_action_share)) {
-                val sendIntent =
-                    Intent().apply {
-                        action = Intent.ACTION_SEND
-                        type = "text/plain"
-                        putExtra(
-                            Intent.EXTRA_TEXT,
-                            externalLinkForNote(note),
-                        )
-                        putExtra(
-                            Intent.EXTRA_TITLE,
-                            quickActionShareBrowserLinkStr,
-                        )
-                    }
-
-                val shareIntent =
-                    Intent.createChooser(sendIntent, quickActionShareStr)
-                actContext.startActivity(shareIntent)
+                sharer.share(externalLinkForNote(note), quickActionShareBrowserLinkStr, quickActionShareStr)
                onDismiss()
            }
        }
@@ -36,6 +36,7 @@ import com.vitorpamplona.amethyst.commons.service.uploads.MultiOrchestrator
 import com.vitorpamplona.amethyst.commons.service.uploads.SelectedMedia
 import com.vitorpamplona.amethyst.commons.service.uploads.UploadOrchestrator
 import com.vitorpamplona.amethyst.commons.service.uploads.UploadingState
+import com.vitorpamplona.amethyst.commons.service.uploads.lastPathSegmentOrNull
 import com.vitorpamplona.amethyst.commons.ui.loadStringRes
 import com.vitorpamplona.amethyst.commons.ui.uploads.errorResource
 import com.vitorpamplona.amethyst.commons.viewmodels.AccountViewModel
@@ -176,7 +177,7 @@ class NewMusicTrackViewModel : ViewModel() {
        audioMedia.value = MultiOrchestrator(persistentListOf(uri))
        // Fall back to the last path segment of the content:// URI — Android picker URIs
        // rarely expose a clean filename, but the segment is at least stable across recomposes.
-        pickedAudioName.value = uri.uri.lastPathSegment?.substringAfterLast('/')
+        pickedAudioName.value = uri.uri.lastPathSegmentOrNull()?.substringAfterLast('/')

        // Auto-fill title/artist/album/duration from the picked file's embedded metadata so
        // the user doesn't have to retype what's already in the ID3 / mp4 / FLAC tags.
@@ -98,6 +98,7 @@ import com.vitorpamplona.amethyst.commons.ui.navigation.topbars.SendingTopBar
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.music.CoverImagePicker
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.music.UploadInProgressBanner
 import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.music.UploadPlaceholder
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring.V4VSplitEditor
 import com.vitorpamplona.amethyst.commons.ui.stringRes
 import com.vitorpamplona.amethyst.commons.viewmodels.AccountViewModel
 import kotlinx.collections.immutable.persistentListOf
@@ -33,6 +33,8 @@ import com.vitorpamplona.amethyst.commons.service.uploads.CompressorQuality
 import com.vitorpamplona.amethyst.commons.service.uploads.MediaUploader
 import com.vitorpamplona.amethyst.commons.service.uploads.MultiOrchestrator
 import com.vitorpamplona.amethyst.commons.service.uploads.SelectedMedia
+import com.vitorpamplona.amethyst.commons.service.uploads.lastPathSegmentOrNull
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring.PodcastComposerMedia
 import com.vitorpamplona.amethyst.commons.viewmodels.AccountViewModel
 import com.vitorpamplona.quartz.nip01Core.core.Address
 import com.vitorpamplona.quartz.nipXXPodcasting20.episode.Podcasting20EpisodeEvent
@@ -154,11 +156,11 @@ class NewPodcastEpisodeViewModel : ViewModel() {
            return
        }
        audioMedia.value = MultiOrchestrator(persistentListOf(uri))
-        pickedAudioName.value = uri.uri.lastPathSegment?.substringAfterLast('/')
+        pickedAudioName.value = uri.uri.lastPathSegmentOrNull()?.substringAfterLast('/')

        val appContext = context.applicationContext
        viewModelScope.launch(Dispatchers.IO) {
-            val probed = PodcastComposerMedia.probeAudio(appContext, uri.uri) ?: return@launch
+            val probed = PodcastAudioProbe.probeAudio(appContext, uri.uri) ?: return@launch
            withContext(Dispatchers.Main.immediate) {
                probed.durationSeconds?.let { durationSeconds.value = it.toString() }
                if (title.value.isBlank()) probed.title?.let { title.value = it }
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+
+import android.content.Context
+import android.media.MediaMetadataRetriever
+import android.net.Uri
+import com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring.PodcastComposerMedia
+
+object PodcastAudioProbe {
+    /**
+     * Reads duration + title from a picked audio file via [MediaMetadataRetriever] (heavy — call off
+     * the main thread). Returns null if the provider rejects it or the file isn't a real container.
+     */
+    fun probeAudio(
+        context: Context,
+        uri: Uri,
+    ): PodcastComposerMedia.ProbedAudio? {
+        val retriever = MediaMetadataRetriever()
+        return try {
+            retriever.setDataSource(context, uri)
+            val durationMs = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)?.toLongOrNull()
+            PodcastComposerMedia.ProbedAudio(
+                durationSeconds = durationMs?.let { (it / 1000).toInt().takeIf { secs -> secs > 0 } },
+                title = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_TITLE)?.trim()?.ifBlank { null },
+            )
+        } catch (_: Exception) {
+            null
+        } finally {
+            retriever.release()
+        }
+    }
+}
@@ -23,3 +23,5 @@ package com.vitorpamplona.amethyst.commons.service.uploads
 import android.net.Uri

 actual typealias MediaUri = Uri
+
+actual fun MediaUri.lastPathSegmentOrNull(): String? = lastPathSegment
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons.podcasts
+
+private val WEEKDAYS = arrayOf("Thu", "Fri", "Sat", "Sun", "Mon", "Tue", "Wed")
+private val MONTHS = arrayOf("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec")
+
+/**
+ * [epochSeconds] as an RFC 2822 date in GMT (`Tue, 24 Jun 2025 12:00:00 GMT`), the form
+ * Podcasting 2.0's `pubdate` and RSS use. Matches `java.time`'s `RFC_1123_DATE_TIME`, which
+ * does not zero-pad the day.
+ */
+fun rfc2822Date(epochSeconds: Long): String {
+    val days = epochSeconds.floorDiv(86_400L)
+    val secondOfDay = epochSeconds.mod(86_400L)
+
+    // Civil-from-days (Howard Hinnant), proleptic Gregorian.
+    val z = days + 719_468L
+    val era = z.floorDiv(146_097L)
+    val doe = z - era * 146_097L
+    val yoe = (doe - doe / 1_460L + doe / 36_524L - doe / 146_096L) / 365L
+    val doy = doe - (365L * yoe + yoe / 4L - yoe / 100L)
+    val mp = (5L * doy + 2L) / 153L
+    val day = doy - (153L * mp + 2L) / 5L + 1L
+    val month = if (mp < 10L) mp + 3L else mp - 9L
+    val year = yoe + era * 400L + if (month <= 2L) 1L else 0L
+
+    val weekday = WEEKDAYS[days.mod(7L).toInt()]
+    val hh = (secondOfDay / 3_600L).toString().padStart(2, '0')
+    val mm = (secondOfDay / 60L % 60L).toString().padStart(2, '0')
+    val ss = (secondOfDay % 60L).toString().padStart(2, '0')
+
+    return "$weekday, $day ${MONTHS[(month - 1L).toInt()]} $year $hh:$mm:$ss GMT"
+}
@@ -29,3 +29,6 @@ expect abstract class MediaUri {
    /** The address as a string (`content://…` on Android). */
    abstract override fun toString(): String
 }
+
+/** The last path segment of this address, if it has one (on Android, `Uri.lastPathSegment`). */
+expect fun MediaUri.lastPathSegmentOrNull(): String?
@@ -30,3 +30,11 @@ class StringMediaUri(
 ) : MediaUri() {
    override fun toString(): String = value
 }
+
+actual fun MediaUri.lastPathSegmentOrNull(): String? =
+    toString()
+        .substringBefore('?')
+        .substringBefore('#')
+        .trimEnd('/')
+        .substringAfterLast('/')
+        .ifBlank { null }
@@ -30,3 +30,11 @@ class StringMediaUri(
 ) : MediaUri() {
    override fun toString(): String = value
 }
+
+actual fun MediaUri.lastPathSegmentOrNull(): String? =
+    toString()
+        .substringBefore('?')
+        .substringBefore('#')
+        .trimEnd('/')
+        .substringAfterLast('/')
+        .ifBlank { null }
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons.podcasts
+
+import java.time.Instant
+import java.time.ZoneId
+import java.time.format.DateTimeFormatter
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class Rfc2822DateTest {
+    private fun javaTime(epochSeconds: Long) = DateTimeFormatter.RFC_1123_DATE_TIME.format(Instant.ofEpochSecond(epochSeconds).atZone(ZoneId.of("GMT")))
+
+    @Test
+    fun knownDate() {
+        assertEquals("Tue, 24 Jun 2025 12:00:00 GMT", rfc2822Date(1_750_766_400L))
+    }
+
+    @Test
+    fun matchesJavaTimeAcrossDates() {
+        val samples =
+            listOf(0L, 59L, 86_399L, 86_400L, 951_782_400L, 951_868_799L, 1_709_164_800L, 4_107_542_399L, 1_750_766_400L) +
+                (0 until 2_000).map { it * 2_629_743L + it * 7_919L }
+        samples.forEach { assertEquals(javaTime(it), rfc2822Date(it), "epoch $it") }
+    }
+}
@@ -24,6 +24,7 @@ import android.net.Uri
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.SideEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -69,3 +70,17 @@ actual fun FileSelect(onFilesSelected: (ImmutableList<SelectedMedia>) -> Unit) {

    LaunchFilePicker()
 }
+
+@Composable
+actual fun DocumentSelectSingle(
+    mimeTypes: List<String>,
+    onPicked: (SelectedMedia?) -> Unit,
+) {
+    val resolver = LocalContext.current.contentResolver
+    val launcher =
+        rememberLauncherForActivityResult(
+            contract = ActivityResultContracts.OpenDocument(),
+            onResult = { uri: Uri? -> onPicked(uri?.let { SelectedMedia(it, resolver.getType(it)) }) },
+        )
+    LaunchedEffect(Unit) { launcher.launch(mimeTypes.toTypedArray()) }
+}
@@ -91,3 +91,10 @@ private fun FileSelectButton(
 /** Opens the platform's document picker for audio and PDF files; reports an empty list on cancel. */
@Composable
 expect fun FileSelect(onFilesSelected: (ImmutableList<SelectedMedia>) -> Unit = {})
+
+/** Opens the platform's document picker for one file of [mimeTypes]; reports null on cancel. */
+@Composable
+expect fun DocumentSelectSingle(
+    mimeTypes: List<String>,
+    onPicked: (SelectedMedia?) -> Unit,
+)
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons.ui.components.wavefront
+
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.requiredHeight
+import androidx.compose.foundation.layout.width
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableFloatState
+import androidx.compose.runtime.mutableFloatStateOf
+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.Size
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.drawscope.Fill
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import com.vitorpamplona.amethyst.commons.ui.theme.ThemeComparisonColumn
+import kotlin.math.PI
+import kotlin.math.sin
+
+@Preview
+@Composable
+fun FakeWaveformAnimationPreview() {
+    val state =
+        remember {
+            mutableFloatStateOf((500 % 1000.0f) / 1000.0f)
+        }
+    ThemeComparisonColumn {
+        FakeWaveformAnimation(state, 50, Modifier.width(200.dp))
+    }
+}
+
+@Composable
+fun FakeWaveformAnimation(
+    waveformProgress: MutableFloatState,
+    barCount: Int = 50,
+    modifier: Modifier = Modifier,
+) {
+    val barBrush =
+        Brush.linearGradient(
+            colors = listOf(Color(0xff2598cf), Color(0xff652d80)),
+            start = Offset(0.2f * 128f, 0f),
+            end = Offset(0.2f * 128f + 128f, 0f),
+        )
+
+    Canvas(
+        modifier =
+            modifier
+                .fillMaxWidth()
+                .requiredHeight(48.dp)
+                .padding(horizontal = 10.dp),
+    ) {
+        val barWidth = 3.dp.toPx()
+        val barPadding = 2.dp.toPx()
+        val barRadius = 2.dp.toPx()
+        val totalBarWidth = barWidth + barPadding
+        val startX = (size.width - (barCount * totalBarWidth - barPadding)) / 2f
+
+        for (i in 0 until barCount) {
+            val phase = (i.toFloat() / barCount) * 2f * PI.toFloat()
+            val wave = sin(waveformProgress.floatValue * 2f * PI.toFloat() + phase)
+            val barFraction = ((wave + 1f) / 2f)
+            val barHeight = size.height * barFraction
+            val x = startX + i * totalBarWidth
+            val y = (size.height - barHeight) / 2f
+
+            drawRoundRect(
+                brush = barBrush,
+                topLeft = Offset(x, y),
+                size = Size(barWidth, barHeight),
+                cornerRadius = CornerRadius(barRadius, barRadius),
+                style = Fill,
+            )
+        }
+    }
+}
@@ -18,11 +18,8 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.geocaches.log
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.geocaches.log

-import androidx.activity.compose.rememberLauncherForActivityResult
-import androidx.activity.result.PickVisualMediaRequest
-import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.animation.core.Animatable
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.spring
@@ -65,7 +62,6 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
-import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.commons.resources.Res
@@ -87,6 +83,8 @@ import com.vitorpamplona.amethyst.commons.resources.geocache_log_scan_code
 import com.vitorpamplona.amethyst.commons.resources.geocache_log_your_log
 import com.vitorpamplona.amethyst.commons.resources.geocache_unnamed
 import com.vitorpamplona.amethyst.commons.resources.route_log_geocache_find
+import com.vitorpamplona.amethyst.commons.ui.actions.uploads.GallerySelectSingle
+import com.vitorpamplona.amethyst.commons.ui.components.rememberViewModel
 import com.vitorpamplona.amethyst.commons.ui.insets.imePaddingSafe
 import com.vitorpamplona.amethyst.commons.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.commons.ui.note.rememberGeocachePalette
@@ -121,7 +119,7 @@ fun LogGeocacheFindScreen(
    GeocachesFilterAssemblerSubscription(accountViewModel)

    val address = remember(kind, pubKeyHex, dTag) { Address(kind, pubKeyHex, dTag) }
-    val model: LogGeocacheFindViewModel = viewModel(key = "LogGeocacheFind-${address.toValue()}")
+    val model: LogGeocacheFindViewModel = rememberViewModel(key = "LogGeocacheFind-${address.toValue()}") { LogGeocacheFindViewModel() }
    val scope = rememberCoroutineScope()

    remember(address) {
@@ -132,12 +130,15 @@ fun LogGeocacheFindScreen(
    val listing = model.listing()
    var scanning by remember { mutableStateOf(false) }

-    val photoPicker =
-        rememberLauncherForActivityResult(ActivityResultContracts.PickVisualMedia()) { uri ->
-            if (uri != null) {
-                scope.launch { model.uploadImage(uri, null, accountViewModel.host.mediaUploader) }
+    var pickingPhoto by remember { mutableStateOf(false) }
+    if (pickingPhoto) {
+        GallerySelectSingle(imagesOnly = true) { media ->
+            pickingPhoto = false
+            if (media != null) {
+                scope.launch { model.uploadImage(media.uri, media.mimeType, accountViewModel.host.mediaUploader) }
            }
        }
+    }

    Scaffold(
        topBar = {
@@ -219,7 +220,7 @@ fun LogGeocacheFindScreen(
                OutlinedButton(
                    enabled = !model.isUploading.value,
                    onClick = {
-                        photoPicker.launch(PickVisualMediaRequest(ActivityResultContracts.PickVisualMedia.ImageOnly))
+                        pickingPhoto = true
                    },
                ) {
                    if (model.isUploading.value) {
@@ -18,9 +18,8 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.geocaches.log
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.geocaches.log

-import android.net.Uri
 import androidx.compose.runtime.mutableStateListOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.lifecycle.ViewModel
@@ -28,6 +27,7 @@ import com.vitorpamplona.amethyst.commons.model.Account
 import com.vitorpamplona.amethyst.commons.model.cache.LocalCache
 import com.vitorpamplona.amethyst.commons.service.uploads.CompressorQuality
 import com.vitorpamplona.amethyst.commons.service.uploads.MediaUploader
+import com.vitorpamplona.amethyst.commons.service.uploads.MediaUri
 import com.vitorpamplona.amethyst.commons.service.uploads.UploadOrchestrator
 import com.vitorpamplona.amethyst.commons.service.uploads.UploadingState
 import com.vitorpamplona.amethyst.commons.viewmodels.AccountViewModel
@@ -183,7 +183,7 @@ class LogGeocacheFindViewModel : ViewModel() {
    }

    suspend fun uploadImage(
-        uri: Uri,
+        uri: MediaUri,
        mimeType: String?,
        uploader: MediaUploader,
    ): Boolean {
@@ -18,7 +18,7 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring

 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
@@ -47,7 +47,6 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.input.KeyboardCapitalization
 import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.unit.dp
-import androidx.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.commons.resources.Res
 import com.vitorpamplona.amethyst.commons.resources.podcast_edit_show
 import com.vitorpamplona.amethyst.commons.resources.podcast_publishing_banner
@@ -74,6 +73,7 @@ import com.vitorpamplona.amethyst.commons.resources.podcast_show_type_serial
 import com.vitorpamplona.amethyst.commons.resources.podcast_show_website_label
 import com.vitorpamplona.amethyst.commons.service.upload.ui.StrippingFailureDialog
 import com.vitorpamplona.amethyst.commons.ui.actions.uploads.GallerySelectSingle
+import com.vitorpamplona.amethyst.commons.ui.components.rememberViewModel
 import com.vitorpamplona.amethyst.commons.ui.insets.imePaddingSafe
 import com.vitorpamplona.amethyst.commons.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.commons.ui.navigation.topbars.SendingTopBar
@@ -95,7 +95,7 @@ fun EditPodcastShowScreen(
    accountViewModel: AccountViewModel,
    nav: INav,
 ) {
-    val vm: EditPodcastShowViewModel = viewModel()
+    val vm: EditPodcastShowViewModel = rememberViewModel { EditPodcastShowViewModel() }

    LaunchedEffect(accountViewModel) { vm.init(accountViewModel) }

@@ -18,7 +18,7 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring

 import androidx.compose.runtime.mutableStateOf
 import androidx.lifecycle.ViewModel
@@ -18,11 +18,8 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring

-import android.net.Uri
-import androidx.activity.compose.rememberLauncherForActivityResult
-import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
@@ -50,12 +47,10 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
 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.lifecycle.viewmodel.compose.viewModel
 import com.vitorpamplona.amethyst.commons.icons.symbols.Icon
 import com.vitorpamplona.amethyst.commons.icons.symbols.MaterialSymbols
 import com.vitorpamplona.amethyst.commons.resources.Res
@@ -72,6 +67,8 @@ import com.vitorpamplona.amethyst.commons.resources.podcast_trailer_upload_hint
 import com.vitorpamplona.amethyst.commons.resources.podcast_trailer_url_label
 import com.vitorpamplona.amethyst.commons.service.upload.ui.StrippingFailureDialog
 import com.vitorpamplona.amethyst.commons.service.uploads.SelectedMedia
+import com.vitorpamplona.amethyst.commons.ui.actions.uploads.DocumentSelectSingle
+import com.vitorpamplona.amethyst.commons.ui.components.rememberViewModel
 import com.vitorpamplona.amethyst.commons.ui.insets.imePaddingSafe
 import com.vitorpamplona.amethyst.commons.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.commons.ui.navigation.topbars.SendingTopBar
@@ -87,7 +84,7 @@ fun NewPodcastTrailerScreen(
    accountViewModel: AccountViewModel,
    nav: INav,
 ) {
-    val vm: NewPodcastTrailerViewModel = viewModel()
+    val vm: NewPodcastTrailerViewModel = rememberViewModel { NewPodcastTrailerViewModel() }

    LaunchedEffect(accountViewModel) { vm.init(accountViewModel) }
    StrippingFailureDialog(vm.strippingFailureConfirmation)
@@ -201,14 +198,6 @@ fun NewPodcastTrailerScreen(
    }
 }

-// Audio or video file via OpenDocument.
+// Audio or video file via the document picker.
@Composable
-private fun MediaFileSelect(onPicked: (SelectedMedia?) -> Unit) {
-    val resolver = LocalContext.current.contentResolver
-    val launcher =
-        rememberLauncherForActivityResult(
-            contract = ActivityResultContracts.OpenDocument(),
-            onResult = { uri: Uri? -> onPicked(uri?.let { SelectedMedia(it, resolver.getType(it)) }) },
-        )
-    LaunchedEffect(Unit) { launcher.launch(arrayOf("audio/*", "video/*")) }
-}
+private fun MediaFileSelect(onPicked: (SelectedMedia?) -> Unit) = DocumentSelectSingle(listOf("audio/*", "video/*"), onPicked)
@@ -18,7 +18,7 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring

 import androidx.compose.runtime.mutableStateOf
 import androidx.lifecycle.ViewModel
@@ -28,6 +28,7 @@ import com.vitorpamplona.amethyst.commons.service.upload.SuspendableConfirmation
 import com.vitorpamplona.amethyst.commons.service.uploads.CompressorQuality
 import com.vitorpamplona.amethyst.commons.service.uploads.MultiOrchestrator
 import com.vitorpamplona.amethyst.commons.service.uploads.SelectedMedia
+import com.vitorpamplona.amethyst.commons.service.uploads.lastPathSegmentOrNull
 import com.vitorpamplona.amethyst.commons.viewmodels.AccountViewModel
 import com.vitorpamplona.quartz.nipXXPodcasting20.trailer.Podcasting20TrailerEvent
 import kotlinx.collections.immutable.persistentListOf
@@ -78,7 +79,7 @@ class NewPodcastTrailerViewModel : ViewModel() {
            return
        }
        media.value = MultiOrchestrator(persistentListOf(uri))
-        pickedName.value = uri.uri.lastPathSegment?.substringAfterLast('/')
+        pickedName.value = uri.uri.lastPathSegmentOrNull()?.substringAfterLast('/')
        pickedMimeType.value = uri.mimeType
    }

@@ -149,7 +150,7 @@ class NewPodcastTrailerViewModel : ViewModel() {

                _completionEvents.tryEmit(Unit)
            } catch (t: Throwable) {
-                accountViewModel.toastManager.toast("Failed to publish trailer", t.message ?: t.javaClass.simpleName)
+                accountViewModel.toastManager.toast("Failed to publish trailer", t.message ?: t::class.simpleName ?: "")
            } finally {
                withContext(Dispatchers.Main.immediate) { isSending.value = false }
            }
@@ -18,13 +18,11 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring

-import android.content.Context
-import android.media.MediaMetadataRetriever
-import android.net.Uri
 import com.vitorpamplona.amethyst.commons.model.Account
 import com.vitorpamplona.amethyst.commons.model.mediaServers.ServerName
+import com.vitorpamplona.amethyst.commons.podcasts.rfc2822Date
 import com.vitorpamplona.amethyst.commons.service.uploads.CompressorQuality
 import com.vitorpamplona.amethyst.commons.service.uploads.MediaUploader
 import com.vitorpamplona.amethyst.commons.service.uploads.MultiOrchestrator
@@ -32,10 +30,9 @@ import com.vitorpamplona.amethyst.commons.service.uploads.UploadOrchestrator
 import com.vitorpamplona.amethyst.commons.service.uploads.UploadingState
 import com.vitorpamplona.amethyst.commons.ui.loadStringRes
 import com.vitorpamplona.amethyst.commons.ui.uploads.errorResource
-import java.time.ZoneId
-import java.time.ZonedDateTime
-import java.time.format.DateTimeFormatter
-import java.util.UUID
+import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlin.uuid.ExperimentalUuidApi
+import kotlin.uuid.Uuid

 /**
 * Shared upload + media-probe mechanics for the Podcasting-2.0 composers (episode, show, trailer).
@@ -97,34 +94,12 @@ object PodcastComposerMedia {
        val title: String?,
    )

-    /**
-     * Reads duration + title from a picked audio file via [MediaMetadataRetriever] (heavy — call off
-     * the main thread). Returns null if the provider rejects it or the file isn't a real container.
-     */
-    fun probeAudio(
-        context: Context,
-        uri: Uri,
-    ): ProbedAudio? {
-        val retriever = MediaMetadataRetriever()
-        return try {
-            retriever.setDataSource(context, uri)
-            val durationMs = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)?.toLongOrNull()
-            ProbedAudio(
-                durationSeconds = durationMs?.let { (it / 1000).toInt().takeIf { secs -> secs > 0 } },
-                title = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_TITLE)?.trim()?.ifBlank { null },
-            )
-        } catch (_: Exception) {
-            null
-        } finally {
-            retriever.release()
-        }
-    }
-
    /** Current time as an RFC2822 date string (`Tue, 24 Jun 2025 12:00:00 GMT`) — the spec's `pubdate`. */
-    fun rfc2822Now(): String = DateTimeFormatter.RFC_1123_DATE_TIME.format(ZonedDateTime.now(ZoneId.of("GMT")))
+    fun rfc2822Now(): String = rfc2822Date(TimeUtils.now())

    /** A fresh, stable `d` tag for a new addressable episode/trailer. */
-    fun generateDTag(prefix: String): String = "$prefix-${System.currentTimeMillis() / 1000}-${UUID.randomUUID().toString().take(8)}"
+    @OptIn(ExperimentalUuidApi::class)
+    fun generateDTag(prefix: String): String = "$prefix-${TimeUtils.now()}-${Uuid.random().toString().take(8)}"

    /** Splits a comma-separated text field into a clean list (trimmed, no blanks). */
    fun parseCsv(text: String): List<String> = text.split(',').map { it.trim() }.filter { it.isNotEmpty() }
@@ -18,7 +18,7 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.podcasts.authoring
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.podcasts.authoring

 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
@@ -18,7 +18,7 @@
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
-package com.vitorpamplona.amethyst.ui.screen.loggedIn.settings
+package com.vitorpamplona.amethyst.commons.ui.screen.loggedIn.settings

 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
@@ -64,11 +64,11 @@ import com.vitorpamplona.amethyst.commons.resources.audio_visualizer_settings
 import com.vitorpamplona.amethyst.commons.resources.audio_visualizer_settings_description
 import com.vitorpamplona.amethyst.commons.resources.audio_visualizer_static
 import com.vitorpamplona.amethyst.commons.resources.audio_visualizer_waves
+import com.vitorpamplona.amethyst.commons.ui.components.wavefront.FakeWaveformAnimation
 import com.vitorpamplona.amethyst.commons.ui.navigation.navs.INav
 import com.vitorpamplona.amethyst.commons.ui.navigation.topbars.TopBarWithBackButton
 import com.vitorpamplona.amethyst.commons.ui.stringRes
 import com.vitorpamplona.amethyst.commons.viewmodels.AccountViewModel
-import com.vitorpamplona.amethyst.service.playback.composable.wavefront.FakeWaveformAnimation
 import kotlinx.coroutines.flow.Flow

@Composable
@@ -31,3 +31,12 @@ import kotlinx.collections.immutable.persistentListOf
 actual fun FileSelect(onFilesSelected: (ImmutableList<SelectedMedia>) -> Unit) {
    LaunchedEffect(Unit) { onFilesSelected(persistentListOf()) }
 }
+
+/** No document picker wired yet: reports a cancel. */
+@Composable
+actual fun DocumentSelectSingle(
+    mimeTypes: List<String>,
+    onPicked: (SelectedMedia?) -> Unit,
+) {
+    LaunchedEffect(Unit) { onPicked(null) }
+}
@@ -31,3 +31,12 @@ import kotlinx.collections.immutable.persistentListOf
 actual fun FileSelect(onFilesSelected: (ImmutableList<SelectedMedia>) -> Unit) {
    LaunchedEffect(Unit) { onFilesSelected(persistentListOf()) }
 }
+
+/** No document picker wired yet: reports a cancel. */
+@Composable
+actual fun DocumentSelectSingle(
+    mimeTypes: List<String>,
+    onPicked: (SelectedMedia?) -> Unit,
+) {
+    LaunchedEffect(Unit) { onPicked(null) }
+}