android: track saved replies and navigate original messages

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

@@ -16,12 +16,17 @@ import com.utun.chat.data.CallController
 import com.utun.chat.data.AvatarRepository
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.launch
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
 
 object AppEventHandler : ChatEventCallback {
     private val mainHandler = Handler(Looper.getMainLooper())
     private val _events = MutableSharedFlow<Pair<Int, ByteArray?>>(replay = 16, extraBufferCapacity = 64)
+    private val eventScope = CoroutineScope(SupervisorJob() + Dispatchers.Main.immediate)
     val events: SharedFlow<Pair<Int, ByteArray?>> = _events
 
     override fun onEvent(type: Int, data: ByteArray?) {
@@ -31,7 +36,8 @@ object AppEventHandler : ChatEventCallback {
         if (type == 12 || type == 13 || type in 34..40 || type == 42 || type == 44) {
             mainHandler.post { CallController.onEvent(type, data) }
         }
-        _events.tryEmit(type to data)
+        // Подтверждения отправки нельзя терять при заполнении буфера; native-поток не блокируем.
+        eventScope.launch { _events.emit(type to data) }
     }
 
     // Звук живёт в приложении: работает без Activity и не повторяется при replay событий в UI.

tools/chatgui-android/app/src/main/java/com/utun/chat/data/AudioRecorderManager.kt

@@ -34,11 +34,11 @@ class AudioRecorderManager {
                PackageManager.PERMISSION_GRANTED
     }
 
-    fun startRecording(channelId: String): Boolean {
+    fun startRecording(channelId: String, replyTo: String = "", requestId: Long = 0): Boolean {
         if (isRecording) return false
         if (!hasPermission()) return false
 
-        val ok = NativeLib.voiceStart(channelId)
+        val ok = NativeLib.voiceStart(channelId, replyTo, requestId)
         if (!ok) {
             LogManager.addLog("ERROR", "AudioRecorder", "native voiceStart failed")
             return false

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

@@ -14,6 +14,9 @@ import com.utun.chat.ChatApplication
 import com.utun.chat.AppEventHandler
 import com.utun.chat.data.*
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.Deferred
+import kotlinx.coroutines.async
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.isActive
@@ -27,6 +30,97 @@ import org.json.JSONArray
 private val IMAGE_EXTENSIONS = setOf("jpg", "jpeg", "png", "gif", "bmp", "webp")
 
 class ChatViewModel : ViewModel() {
+    private val _replies = MutableStateFlow<Map<String, ChannelReply>>(emptyMap())
+    val replies: StateFlow<Map<String, ChannelReply>> = _replies
+    private var replyRevision = 0L
+    private var nextSubmissionId = 0L
+    private val submissions = mutableMapOf<Long, CompletableDeferred<Boolean>>()
+    private val submissionChannels = mutableMapOf<Long, String>()
+    private val _submittingChannels = MutableStateFlow<Set<String>>(emptySet())
+    val submittingChannels: StateFlow<Set<String>> = _submittingChannels
+    private val _messageSendFailed = MutableStateFlow(false)
+    val messageSendFailed: StateFlow<Boolean> = _messageSendFailed
+    private val _replyOriginals = MutableStateFlow<Map<String, Message>>(emptyMap())
+    val replyOriginals: StateFlow<Map<String, Message>> = _replyOriginals
+    private val _historyAnchor = MutableStateFlow("")
+    val historyAnchor: StateFlow<String> = _historyAnchor
+    data class MessageJump(val messageId: String, val serial: Long)
+    private val _messageJump = MutableStateFlow<MessageJump?>(null)
+    val messageJump: StateFlow<MessageJump?> = _messageJump
+    private var messageRefreshRevision = 0L
+    private var jumpRevision = 0L
+    private var pendingLatestJump: MessageJump? = null
+    private val _originalMissing = MutableStateFlow(false)
+    val originalMissing: StateFlow<Boolean> = _originalMissing
+    var cameraReply: ChannelReply? = null
+        private set
+
+    fun replyFor(target: ConversationTarget): ChannelReply? =
+        if (target is ConversationTarget.Channel) _replies.value[target.id] else null
+
+    fun selectReply(message: Message) {
+        val channel = _currentChannel.value?.id ?: return
+        if (!validMessageId(message.messageId)) { LogManager.addLog("ERROR", "Reply", "invalid original ID"); return }
+        _replies.value = _replies.value + (channel to ChannelReply(channel, message, ++replyRevision))
+        LogManager.addLog("INFO", "Reply", "selected ch=$channel original=${message.messageId}")
+    }
+
+    fun cancelReply(channel: String) {
+        _replies.value = _replies.value - channel
+        LogManager.addLog("INFO", "Reply", "cancelled ch=$channel")
+    }
+
+    fun finishReply(reply: ChannelReply?) {
+        if (reply != null && reply.channelId !in _submittingChannels.value && _replies.value[reply.channelId] == reply)
+            cancelReply(reply.channelId)
+    }
+
+    fun captureCameraReply(target: ConversationTarget) { cameraReply = replyFor(target) }
+    fun dismissMessageSendError() { _messageSendFailed.value = false }
+    fun dismissOriginalMissing() { _originalMissing.value = false }
+
+    private fun submissionResult(id: Long, success: Boolean) {
+        val result = submissions.remove(id)
+        submissionChannels.remove(id)
+        _submittingChannels.value = submissionChannels.values.toSet()
+        if (result == null) { LogManager.addLog("WARN", "Reply", "unknown submission result request=$id success=$success"); return }
+        LogManager.addLog(if (success) "INFO" else "ERROR", "Reply", "submission request=$id saved=$success")
+        result.complete(success)
+    }
+
+    private suspend fun submitChannel(channel: String, reply: ChannelReply?, queue: (Long) -> Boolean): Boolean {
+        if (reply != null && reply.channelId != channel) {
+            LogManager.addLog("ERROR", "Reply", "target mismatch ch=$channel reply=${reply.channelId}")
+            _messageSendFailed.value = true
+            return false
+        }
+        val id = ++nextSubmissionId
+        val result = CompletableDeferred<Boolean>()
+        submissions[id] = result
+        submissionChannels[id] = channel
+        _submittingChannels.value = submissionChannels.values.toSet()
+        LogManager.addLog("INFO", "Reply", "submit ch=$channel request=$id original=${reply?.message?.messageId.orEmpty()}")
+        try {
+            if (!queue(id)) submissionResult(id, false)
+            val success = result.await()
+            if (!success) _messageSendFailed.value = true
+            return success
+        } catch (e: kotlinx.coroutines.CancellationException) { throw e }
+        catch (e: Exception) {
+            LogManager.addLog("ERROR", "Reply", "submission failed ch=$channel request=$id: ${e.message}")
+            _messageSendFailed.value = true
+            return false
+        } finally {
+            submissions.remove(id)
+            submissionChannels.remove(id)
+            _submittingChannels.value = submissionChannels.values.toSet()
+        }
+    }
+
+    fun sendChannelText(target: ConversationTarget.Channel, text: String, reply: ChannelReply?): Deferred<Boolean> = viewModelScope.async {
+        submitChannel(target.id, reply) { NativeLib.sendMessage(target.id, text, reply?.message?.messageId.orEmpty(), it) }
+    }
+
     data class PmInviteState(val peer: Long, val name: String, val source: String, val groups: List<Channel>,
                              val groupId: String = "", val requestId: Long = 0, val pending: Boolean = false, val errorRes: Int = 0)
     private val _pmInvite = MutableStateFlow<PmInviteState?>(null)
@@ -297,6 +391,11 @@ class ChatViewModel : ViewModel() {
             _dmConversations.value = _dmConversations.value.map { it.copy(online = false) }
         } else if (type in listOf(4, 5, 12, 16, 17, 24, 25, 31, 33)) refreshDmCallRoute()
         when (type) {
+            56 -> { /* MSG_SUBMITTED: request_id:8LE, success. */
+                if (data == null || data.size != 9) { LogManager.addLog("ERROR", "Reply", "invalid submission result"); return }
+                val id = java.nio.ByteBuffer.wrap(data).order(java.nio.ByteOrder.LITTLE_ENDIAN).long
+                submissionResult(id, data[8].toInt() != 0)
+            }
             55 -> { /* RADIO_MUTE_RESULT: group_id:8LE, node_id:8LE, success. */
                 if (data == null || data.size != 17) {
                     LogManager.addLog("ERROR", "Radio", "Invalid member mute result"); _radioMuteFailed.value = true; return
@@ -404,6 +503,7 @@ class ChatViewModel : ViewModel() {
             4 -> { if (repo != null) { LogManager.addLog("INFO", "VM", "CHANNEL_UPDATED — refreshChannels"); refreshChannels() } else { LogManager.addLog("WARN", "VM", "CHANNEL_UPDATED skipped — repo is NULL") } }
             12 -> LogManager.addLog("INFO", "VM", "service started")
             13 -> {
+                for (id in submissions.keys.toList()) submissionResult(id, false)
                 _radioTalkState.value = RadioTalkState()
                 _radioTalking.value = null
                 _radioActive.value = false
@@ -1004,16 +1104,56 @@ class ChatViewModel : ViewModel() {
 
     fun refreshMessages(chId: String) {
         val r = repo ?: return
+        if (_currentChannel.value?.id != chId) return
+        val anchor = _historyAnchor.value
+        val revision = ++messageRefreshRevision
         viewModelScope.launch {
-            val rows = withContext(Dispatchers.IO) { r.getMessages(chId) }
-            if (_currentChannel.value?.id != chId) return@launch
+            val (rows, originals) = withContext(Dispatchers.IO) {
+                val rows = r.getMessages(chId, 100, anchor)
+                val loaded = rows.associateBy { it.messageId }.toMutableMap()
+                for (id in rows.map { it.replyTo }.filter { it.isNotEmpty() }.distinct()) {
+                    if (id !in loaded) r.getMessages(chId, 1, id, true).firstOrNull()?.let { loaded[id] = it }
+                }
+                rows to loaded
+            }
+            if (_currentChannel.value?.id != chId || revision != messageRefreshRevision) return@launch
             _messages.value = rows.map { it.copy(feedback = feedbackCache[it.messageId]) }
+            _replyOriginals.value = originals
+            if (anchor.isEmpty()) pendingLatestJump?.let { _messageJump.value = it; pendingLatestJump = null }
             if (_reactionCatalog.value.isEmpty()) sendInteraction(JSONObject().put("cmd", "reaction_catalog"), false)
             for (row in rows) if (row.messageId.length == 64)
                 sendInteraction(JSONObject().put("cmd", "feedback").put("ch", chId).put("message_id", row.messageId), false)
         }
     }
 
+    fun showOriginal(id: String) {
+        val channel = _currentChannel.value?.id ?: return
+        val r = repo ?: return
+        val revision = ++jumpRevision
+        pendingLatestJump = null
+        viewModelScope.launch {
+            val rows = withContext(Dispatchers.IO) { r.getMessages(channel, 100, id) }
+            if (_currentChannel.value?.id != channel || jumpRevision != revision) return@launch
+            if (rows.none { it.messageId == id }) {
+                LogManager.addLog("WARN", "Reply", "original unavailable ch=$channel id=$id")
+                _originalMissing.value = true
+                return@launch
+            }
+            ++messageRefreshRevision
+            _historyAnchor.value = id
+            _messages.value = rows.map { it.copy(feedback = feedbackCache[it.messageId]) }
+            _messageJump.value = MessageJump(id, revision)
+            refreshMessages(channel)
+            LogManager.addLog("INFO", "Reply", "history jump ch=$channel id=$id rows=${rows.size}")
+        }
+    }
+
+    fun showLatestMessages() {
+        _historyAnchor.value = ""
+        pendingLatestJump = MessageJump("", ++jumpRevision)
+        _currentChannel.value?.id?.let(::refreshMessages)
+    }
+
     private fun sendInteraction(command: JSONObject, userAction: Boolean = true) {
         if (!command.has("ch")) command.put("ch", _currentChannel.value?.id ?: return)
         if (!NativeLib.feedbackCommand(command.toString(), if (userAction) ++nextInteractionId else 0)) {
@@ -1043,6 +1183,11 @@ class ChatViewModel : ViewModel() {
     fun selectChannel(channel: Channel) {
         val r = repo ?: return
         if (_currentChannel.value?.id != channel.id) {
+            _historyAnchor.value = ""
+            _messageJump.value = null
+            pendingLatestJump = null
+            _replyOriginals.value = emptyMap()
+            ++jumpRevision
             feedbackCache.clear()
             memberDetailJob?.cancel(); memberDetailTarget = null; _selectedMember.value = null
         }
@@ -1282,13 +1427,11 @@ class ChatViewModel : ViewModel() {
     }
 
     fun sendMessage(text: String) {
-        val r = repo ?: return
         val ch = _currentChannel.value ?: return
-        r.sendMessage(ch.id, text)
+        val target = ConversationTarget.Channel(ch.id)
+        val reply = replyFor(target)
         viewModelScope.launch {
-            _messages.value = withContext(Dispatchers.IO) { r.getMessages(ch.id) }
-                .map { it.copy(feedback = feedbackCache[it.messageId]) }
-            refreshChannels()
+            if (sendChannelText(target, text, reply).await()) finishReply(reply)
         }
     }
 
@@ -1327,15 +1470,27 @@ class ChatViewModel : ViewModel() {
 
     private var recordingStopping = false
     private var recordingTarget: ConversationTarget? = null
+    private var recordingReply: ChannelReply? = null
+    private var recordingSubmission: Pair<Long, CompletableDeferred<Boolean>>? = null
 
     fun startVoiceRecording(target: ConversationTarget) {
         if (recordingStopping) { LogManager.addLog("WARN", "VM", "recording is still stopping"); return }
-        if (!audioRecorder.startRecording(target.nativeId)) {
+        if (_isRecording.value) { LogManager.addLog("WARN", "VM", "recording already active"); return }
+        if (target is ConversationTarget.Channel && target.id in _submittingChannels.value) {
+            LogManager.addLog("WARN", "Reply", "voice start blocked by pending submission ch=${target.id}"); return
+        }
+        val reply = replyFor(target)
+        val request = if (target is ConversationTarget.Channel) ++nextSubmissionId to CompletableDeferred<Boolean>() else null
+        if (request != null) submissions[request.first] = request.second
+        if (!audioRecorder.startRecording(target.nativeId, reply?.message?.messageId.orEmpty(), request?.first ?: 0)) {
+            request?.let { submissions.remove(it.first) }
             LogManager.addLog("ERROR", "VM", "voice recording failed to start")
             return
         }
         _isRecording.value = true
         recordingTarget = target
+        recordingReply = reply
+        recordingSubmission = request
         _isRecordingLocked.value = false
         recordingStartTimeMs = System.currentTimeMillis()
         _recordingDurationMs.value = 0
@@ -1353,13 +1508,37 @@ class ChatViewModel : ViewModel() {
         _isRecording.value = false
         _isRecordingLocked.value = false
         _recordingDurationMs.value = 0
+        val request = recordingSubmission
+        val reply = recordingReply
+        if (request != null) {
+            submissionChannels[request.first] = recordingTarget!!.id
+            _submittingChannels.value = submissionChannels.values.toSet()
+        }
         viewModelScope.launch {
+            var discarded = false
             try {
                 val duration = withContext(Dispatchers.IO) { audioRecorder.stopRecording() }
                 LogManager.addLog("INFO", "VM", "voice detached target=${recordingTarget?.nativeId} duration=$duration")
+                if (request != null && duration < AudioRecorderManager.MIN_DURATION_MS) {
+                    discarded = duration >= 0
+                    submissions.remove(request.first)
+                    submissionChannels.remove(request.first)
+                    _submittingChannels.value = submissionChannels.values.toSet()
+                    request.second.complete(false)
+                    if (duration < 0) _messageSendFailed.value = true
+                }
             } finally {
                 recordingStopping = false
                 recordingTarget = null
+                recordingSubmission = null
+                recordingReply = null
+            }
+            if (request != null) {
+                if (request.second.await()) finishReply(reply)
+                else if (!discarded) {
+                    _messageSendFailed.value = true
+                    LogManager.addLog("ERROR", "Reply", "voice submission failed request=${request.first}")
+                }
             }
         }
     }
@@ -1370,6 +1549,9 @@ class ChatViewModel : ViewModel() {
         _isRecording.value = false
         _isRecordingLocked.value = false
         _recordingDurationMs.value = 0
+        recordingSubmission?.let { submissions.remove(it.first); it.second.complete(false) }
+        recordingSubmission = null
+        recordingReply = null
         viewModelScope.launch {
             try { withContext(Dispatchers.IO) { audioRecorder.cancelRecording() } }
             finally { recordingStopping = false; recordingTarget = null }
@@ -1381,89 +1563,76 @@ class ChatViewModel : ViewModel() {
         stopVoiceRecording()
     }
 
-    fun sendAttachment(filePath: String, target: ConversationTarget, name: String = File(filePath).name) {
-        val r = repo ?: throw IllegalStateException(AppLanguage.text(R.string.chat_service_stopped))
+    fun sendAttachment(filePath: String, target: ConversationTarget, name: String = File(filePath).name,
+                       reply: ChannelReply? = replyFor(target)): Deferred<Boolean> = viewModelScope.async {
         if (target is ConversationTarget.Pm) {
-            if (!NativeLib.dmSendFile(target.id, filePath, name)) throw IllegalStateException(AppLanguage.text(R.string.attachment_send_failed))
-            return
+            val accepted = NativeLib.dmSendFile(target.id, filePath, name)
+            if (!accepted) { LogManager.addLog("ERROR", "VM", "PM attachment rejected"); _messageSendFailed.value = true }
+            return@async accepted
         }
         val chId = target.id
         val ext = filePath.substringAfterLast('.', "").lowercase()
-        if (ext in IMAGE_EXTENSIONS) {
-            viewModelScope.launch {
-                val dims = withContext(Dispatchers.IO) {
-                    val opts = BitmapFactory.Options().apply { inJustDecodeBounds = true }
-                    BitmapFactory.decodeFile(filePath, opts)
-                    opts.outWidth to opts.outHeight
-                }
-                val (w, h) = dims
-                if (w > 0 && h > 0) {
-                    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(chId, filePath)
-                }
-                delay(500)
-                refreshMessages(chId)
-                refreshChannels()
-            }
-        } else {
-            r.sendAttachment(chId, filePath)
-            viewModelScope.launch {
-                delay(500)
-                refreshMessages(chId)
-                refreshChannels()
-            }
+        val dims = if (ext in IMAGE_EXTENSIONS) withContext(Dispatchers.IO) {
+            val opts = BitmapFactory.Options().apply { inJustDecodeBounds = true }
+            BitmapFactory.decodeFile(filePath, opts)
+            opts.outWidth to opts.outHeight
+        } else 0 to 0
+        submitChannel(chId, reply) { request ->
+            if (dims.first > 0 && dims.second > 0)
+                NativeLib.photoSend(chId, filePath, dims.first, dims.second, reply?.message?.messageId.orEmpty(), request)
+            else NativeLib.attachmentSend(chId, filePath, reply?.message?.messageId.orEmpty(), request)
         }
     }
 
     /** Cache-файл передаётся native только после успешного чтения метаданных. */
-    fun sendVideoMessage(filePath: String, target: ConversationTarget) {
+    fun sendVideoMessage(filePath: String, target: ConversationTarget, reply: ChannelReply? = replyFor(target),
+                         clearReply: Boolean = true): Deferred<Boolean> = viewModelScope.async {
         val job = java.util.UUID.randomUUID().toString()
         preparationState(target.nativeId, job, 0)
-        viewModelScope.launch {
-            var accepted = false
-            try {
-                val r = repo ?: throw IllegalStateException(AppLanguage.text(R.string.chat_service_stopped))
-                val meta = withContext(Dispatchers.IO) {
-                    val mmr = MediaMetadataRetriever()
-                    try {
-                        mmr.setDataSource(filePath)
-                        if (mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_MIMETYPE) != "video/mp4")
-                            throw IllegalStateException(AppLanguage.text(R.string.video_mp4_only))
-                        Triple(
-                            mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)?.toIntOrNull() ?: 0,
-                            mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH)?.toIntOrNull() ?: 0,
-                            mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT)?.toIntOrNull() ?: 0
-                        )
-                    } finally { mmr.release() }
-                }
-                accepted = r.sendVideo(target.nativeId, filePath, meta.first, meta.second, meta.third)
-                if (!accepted) throw IllegalStateException(AppLanguage.text(R.string.video_invalid_or_stopped))
-                LogManager.addLog("INFO", "VM", "video queued target=${target.nativeId} dur=${meta.first} ${meta.second}x${meta.third}")
-            } catch (e: kotlinx.coroutines.CancellationException) { throw e }
-            catch (e: Exception) { LogManager.addLog("ERROR", "VM", "video failed target=${target.nativeId}: ${e.message}") }
-            finally {
-                preparationState(target.nativeId, job, if (accepted) 1 else 2)
-                if (!accepted) withContext(kotlinx.coroutines.NonCancellable + Dispatchers.IO) {
-                    if (!File(filePath).delete() && File(filePath).exists())
-                        LogManager.addLog("ERROR", "VM", "video cache cleanup failed: $filePath")
-                }
+        var accepted = false
+        var saved = false
+        try {
+            val meta = withContext(Dispatchers.IO) {
+                val mmr = MediaMetadataRetriever()
+                try {
+                    mmr.setDataSource(filePath)
+                    if (mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_MIMETYPE) != "video/mp4")
+                        throw IllegalStateException(AppLanguage.text(R.string.video_mp4_only))
+                    Triple(
+                        mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION)?.toIntOrNull() ?: 0,
+                        mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH)?.toIntOrNull() ?: 0,
+                        mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT)?.toIntOrNull() ?: 0
+                    )
+                } finally { mmr.release() }
+            }
+            val queue: (Long) -> Boolean = { request ->
+                NativeLib.videoSend(target.nativeId, filePath, meta.first, meta.second, meta.third,
+                    reply?.message?.messageId.orEmpty(), request).also { accepted = it }
+            }
+            saved = if (target is ConversationTarget.Channel) submitChannel(target.id, reply, queue) else queue(0)
+            if (!saved) _messageSendFailed.value = true
+            if (saved && clearReply) finishReply(reply)
+        } catch (e: kotlinx.coroutines.CancellationException) { throw e }
+        catch (e: Exception) {
+            LogManager.addLog("ERROR", "VM", "video failed target=${target.nativeId}: ${e.message}")
+            _messageSendFailed.value = true
+        } finally {
+            preparationState(target.nativeId, job, if (saved) 1 else 2)
+            if (!accepted) withContext(kotlinx.coroutines.NonCancellable + Dispatchers.IO) {
+                if (!File(filePath).delete() && File(filePath).exists())
+                    LogManager.addLog("ERROR", "VM", "video cache cleanup failed: $filePath")
             }
         }
+        saved
     }
 
-    fun sendPhotoMessage(filePath: String, width: Int, height: Int) {
-        val r = repo ?: return
-        val ch = _currentChannel.value ?: return
-        LogManager.addLog("INFO", "VM", "sendPhotoMessage ch=${ch.id} ${width}x${height}")
-        r.sendPhoto(ch.id, filePath, width, height)
-        viewModelScope.launch {
-            delay(500)
-            refreshMessages(ch.id)
-            refreshChannels()
+    fun sendPhotoMessage(filePath: String, width: Int, height: Int, channel: String,
+                         reply: ChannelReply?): Deferred<Boolean> = viewModelScope.async {
+        val saved = submitChannel(channel, reply) {
+            NativeLib.photoSend(channel, filePath, width, height, reply?.message?.messageId.orEmpty(), it)
         }
+        if (saved) finishReply(reply)
+        saved
     }
 
     fun downloadAttachment(msg: Message) {