android: send recorded audio as voice and fix playback replay/duration

android/CHANGELOG.md

@@ -455,3 +455,8 @@
 - Added tablet-aware max-width layout constraints across major screens (login, verify/reset auth, chats list, chat, profile, settings).
 - Kept phone layout unchanged while centering content and limiting line width on larger displays.
 - Fixed voice hold-to-send gesture reliability by removing pointer-input restarts during active recording, so release consistently triggers send path.
+
+### Step 73 - Voice message send/playback bugfixes
+- Fixed voice media type mapping in message repository: recorded files with `voice_*.m4a` are now sent as message type `voice` (not generic `audio`).
+- Fixed audio replay behavior: when playback reaches the end, next play restarts from `0:00`.
+- Improved duration display in audio/voice player by adding metadata fallback when `MediaPlayer` duration is not immediately available.

android/app/src/main/java/ru/daemonlord/messenger/data/message/repository/NetworkMessageRepository.kt

@@ -323,7 +323,7 @@ class NetworkMessageRepository @Inject constructor(
         caption: String?,
         replyToMessageId: Long?,
     ): AppResult<Unit> = withContext(ioDispatcher) {
-        val messageType = mapMimeToMessageType(mimeType)
+        val messageType = mapMimeToMessageType(mimeType = mimeType, fileName = fileName)
         val tempId = -System.currentTimeMillis()
         val tempMessage = MessageEntity(
             id = tempId,
@@ -495,10 +495,14 @@ class NetworkMessageRepository @Inject constructor(
         }
     }
 
-    private fun mapMimeToMessageType(mimeType: String): String {
+    private fun mapMimeToMessageType(
+        mimeType: String,
+        fileName: String,
+    ): String {
         return when {
             mimeType.startsWith("image/") -> "image"
             mimeType.startsWith("video/") -> "video"
+            mimeType.startsWith("audio/") && fileName.startsWith("voice_", ignoreCase = true) -> "voice"
             mimeType.startsWith("audio/") -> "audio"
             else -> "file"
         }

android/app/src/main/java/ru/daemonlord/messenger/ui/chat/ChatScreen.kt

@@ -4,6 +4,7 @@ import android.Manifest
 import android.content.Context
 import android.content.pm.PackageManager
 import android.media.AudioAttributes
+import android.media.MediaMetadataRetriever
 import android.media.MediaPlayer
 import android.net.Uri
 import android.provider.OpenableColumns
@@ -1220,9 +1221,10 @@ private fun AudioAttachmentPlayer(
                 isPrepared = true
                 durationMs = player.duration.coerceAtLeast(0)
             }
-            setOnCompletionListener {
+            setOnCompletionListener { player ->
                 isPlaying = false
-                positionMs = durationMs
+                runCatching { player.seekTo(0) }
+                positionMs = 0
                 AppAudioFocusCoordinator.release("player:$url")
             }
             setDataSource(url)
@@ -1245,6 +1247,13 @@ private fun AudioAttachmentPlayer(
             delay(250)
         }
     }
+    LaunchedEffect(url, isPrepared) {
+        if (durationMs > 0) return@LaunchedEffect
+        val fallbackDuration = resolveRemoteAudioDurationMs(url)
+        if (fallbackDuration != null && fallbackDuration > 0) {
+            durationMs = fallbackDuration
+        }
+    }
     DisposableEffect(mediaPlayer) {
         onDispose {
             runCatching {
@@ -1273,6 +1282,10 @@ private fun AudioAttachmentPlayer(
                         isPlaying = false
                         AppAudioFocusCoordinator.release("player:$url")
                     } else {
+                        if (durationMs > 0 && positionMs >= durationMs - 200) {
+                            runCatching { mediaPlayer.seekTo(0) }
+                            positionMs = 0
+                        }
                         runCatching {
                             mediaPlayer.playbackParams = mediaPlayer.playbackParams.setSpeed(speedOptions[speedIndex])
                         }
@@ -1322,7 +1335,10 @@ private fun AudioAttachmentPlayer(
             horizontalArrangement = Arrangement.SpaceBetween,
         ) {
             Text(text = formatDuration(positionMs), style = MaterialTheme.typography.labelSmall)
-            Text(text = formatDuration(durationMs), style = MaterialTheme.typography.labelSmall)
+            Text(
+                text = if (durationMs > 0) formatDuration(durationMs) else "--:--",
+                style = MaterialTheme.typography.labelSmall,
+            )
         }
     }
 }
@@ -1419,6 +1435,19 @@ private fun formatDuration(ms: Int): String {
     return "$min:${sec.toString().padStart(2, '0')}"
 }
 
+private fun resolveRemoteAudioDurationMs(url: String): Int? {
+    return runCatching {
+        val retriever = MediaMetadataRetriever()
+        try {
+            retriever.setDataSource(url, emptyMap())
+            val duration = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)
+            duration?.toIntOrNull()
+        } finally {
+            retriever.release()
+        }
+    }.getOrNull()
+}
+
 private fun extractFileName(url: String): String {
     return runCatching {
         val path = java.net.URI(url).path.orEmpty()