Pin Android recording targets and stop capture outside the main thread

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/components/MessageBubble.kt

@@ -296,12 +296,7 @@ private fun FileBubble(message: Message, textColor: Color, onDownload: (Message)
 private val VIDEO_EXTENSIONS = setOf("mp4", "m4v", "mov", "webm", "3gp", "mkv", "avi", "ts", "mpg", "mpeg")
 
 private fun isVideoMessage(message: Message): Boolean {
-    if (message.contentType.startsWith("video/")) return true
-    if (message.contentType == "application/octet-stream") {
-        val ext = message.text.substringAfterLast('.', "").lowercase()
-        return ext in VIDEO_EXTENSIONS
-    }
-    return false
+    return message.contentType.startsWith("video/")
 }
 
 private fun isImageMessage(message: Message): Boolean = message.contentType.startsWith("image/")

tools/chatgui-android/app/src/main/java/com/utun/chat/viewmodel/ChatViewModel.kt

@@ -946,17 +946,21 @@ class ChatViewModel : ViewModel() {
         r.joinChannel(channelId, nodeId, joinKey, pubkey, addrs, addrCount)
     }
 
-    fun startVoiceRecording() {
-        val ch = _currentChannel.value ?: return
-        if (!audioRecorder.startRecording(ch.id)) {
+    private var recordingStopping = false
+    private var recordingTarget: ConversationTarget? = null
+
+    fun startVoiceRecording(target: ConversationTarget) {
+        if (recordingStopping) { LogManager.addLog("WARN", "VM", "recording is still stopping"); return }
+        if (!audioRecorder.startRecording(target.nativeId)) {
             LogManager.addLog("ERROR", "VM", "voice recording failed to start")
             return
         }
         _isRecording.value = true
+        recordingTarget = target
         _isRecordingLocked.value = false
         recordingStartTimeMs = System.currentTimeMillis()
         _recordingDurationMs.value = 0
-        LogManager.addLog("INFO", "VM", "voice recording started ch=${ch.id}")
+        LogManager.addLog("INFO", "VM", "voice recording started target=${target.nativeId}")
     }
 
     fun lockVoiceRecording() {
@@ -964,42 +968,44 @@ class ChatViewModel : ViewModel() {
         LogManager.addLog("DEBUG", "VM", "voice recording locked")
     }
 
-    fun stopVoiceRecording(): Int {
-        if (!_isRecording.value) return 0
-        val duration = audioRecorder.stopRecording()
+    fun stopVoiceRecording() {
+        if (!_isRecording.value || recordingStopping) return
+        recordingStopping = true
         _isRecording.value = false
         _isRecordingLocked.value = false
         _recordingDurationMs.value = 0
-        val ch = _currentChannel.value
-        if (ch != null && duration >= 500) {
         viewModelScope.launch {
-                delay(500)
-                refreshMessages(ch.id)
-                refreshChannels()
+            try {
+                val duration = withContext(Dispatchers.IO) { audioRecorder.stopRecording() }
+                LogManager.addLog("INFO", "VM", "voice detached target=${recordingTarget?.nativeId} duration=$duration")
+            } finally {
+                recordingStopping = false
+                recordingTarget = null
             }
         }
-        LogManager.addLog("INFO", "VM", "voice recording stopped dur=${duration}ms")
-        return duration
     }
 
     fun cancelVoiceRecording() {
-        audioRecorder.cancelRecording()
+        if (recordingStopping) return
+        recordingStopping = true
         _isRecording.value = false
         _isRecordingLocked.value = false
         _recordingDurationMs.value = 0
-        LogManager.addLog("INFO", "VM", "voice recording cancelled")
+        viewModelScope.launch {
+            try { withContext(Dispatchers.IO) { audioRecorder.cancelRecording() } }
+            finally { recordingStopping = false; recordingTarget = null }
+        }
+        LogManager.addLog("INFO", "VM", "voice recording cancelled target=${recordingTarget?.nativeId}")
     }
 
     fun sendVoiceMessage() {
-        val duration = stopVoiceRecording()
-        if (duration < 1000) {
-            LogManager.addLog("INFO", "VM", "voice too short (${duration}ms), discarded")
-        }
+        stopVoiceRecording()
     }
 
-    fun sendAttachment(filePath: String) {
+    fun sendAttachment(filePath: String, target: ConversationTarget, name: String = File(filePath).name) {
         val r = repo ?: return
-        val ch = _currentChannel.value ?: return
+        if (target is ConversationTarget.Pm) { NativeLib.dmSendFile(target.id, filePath, name); return }
+        val chId = target.id
         val ext = filePath.substringAfterLast('.', "").lowercase()
         if (ext in IMAGE_EXTENSIONS) {
             viewModelScope.launch {
@@ -1010,29 +1016,28 @@ class ChatViewModel : ViewModel() {
                 }
                 val (w, h) = dims
                 if (w > 0 && h > 0) {
-                    LogManager.addLog("INFO", "VM", "sendAttachment(image) ch=${ch.id} ext=$ext ${w}x${h}")
-                    r.sendPhoto(ch.id, filePath, w, h)
+                    LogManager.addLog("INFO", "VM", "sendAttachment(image) ch=$chId ext=$ext ${w}x${h}")
+                    r.sendPhoto(chId, filePath, w, h)
                 } else {
                     LogManager.addLog("WARN", "VM", "image decode failed, sent as file: $filePath")
-                    r.sendAttachment(ch.id, filePath)
+                    r.sendAttachment(chId, filePath)
                 }
                 delay(500)
-                refreshMessages(ch.id)
+                refreshMessages(chId)
                 refreshChannels()
             }
         } else {
-            r.sendAttachment(ch.id, filePath)
+            r.sendAttachment(chId, filePath)
             viewModelScope.launch {
                 delay(500)
-                refreshMessages(ch.id)
+                refreshMessages(chId)
                 refreshChannels()
             }
         }
     }
 
-    fun sendVideoMessage(filePath: String) {
+    fun sendVideoMessage(filePath: String, target: ConversationTarget) {
         val r = repo ?: return
-        val ch = _currentChannel.value ?: return
         viewModelScope.launch {
             val meta = withContext(Dispatchers.IO) {
                 var dur = 0; var w = 0; var h = 0
@@ -1049,11 +1054,8 @@ class ChatViewModel : ViewModel() {
                 }
                 Triple(dur, w, h)
             }
-            LogManager.addLog("INFO", "VM", "sendVideoMessage ch=${ch.id} dur=${meta.first} ${meta.second}x${meta.third}")
-            r.sendVideo(ch.id, filePath, meta.first, meta.second, meta.third)
-            delay(500)
-            refreshMessages(ch.id)
-            refreshChannels()
+            LogManager.addLog("INFO", "VM", "sendVideoMessage target=${target.nativeId} dur=${meta.first} ${meta.second}x${meta.third}")
+            r.sendVideo(target.nativeId, filePath, meta.first, meta.second, meta.third)
         }
     }