android: add reply menu and preserve drafts until submission completes

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

@@ -10,6 +10,9 @@ import androidx.activity.result.contract.ActivityResultContracts
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.ui.Alignment
 import androidx.compose.runtime.*
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Modifier
@@ -34,6 +37,15 @@ fun ConversationComposer(target: ConversationTarget, viewModel: ChatViewModel, o
     val scope = rememberCoroutineScope()
     val activeTarget by rememberUpdatedState(target)
     var text by rememberSaveable(target.nativeId, stateSaver = TextFieldValue.Saver) { mutableStateOf(TextFieldValue()) }
+    var textRevision by rememberSaveable(target.nativeId) { mutableStateOf(0L) }
+    val replies by viewModel.replies.collectAsState()
+    val reply = if (target is ConversationTarget.Channel) replies[target.id] else null
+    val sendFailed by viewModel.messageSendFailed.collectAsState()
+    val submitting by viewModel.submittingChannels.collectAsState()
+    val pending = target is ConversationTarget.Channel && target.id in submitting
+    if (sendFailed) AlertDialog(onDismissRequest = viewModel::dismissMessageSendError,
+        text = { Text(stringResource(R.string.message_send_failed)) },
+        confirmButton = { TextButton(onClick = viewModel::dismissMessageSendError) { Text(stringResource(R.string.close)) } })
     var selected by remember(target) { mutableStateOf<SelectedAttachment?>(null) }
     var pickerTarget by remember { mutableStateOf<ConversationTarget?>(null) }
     var preparing by remember(target) { mutableStateOf(false) }
@@ -75,25 +87,49 @@ fun ConversationComposer(target: ConversationTarget, viewModel: ChatViewModel, o
         }
     }
     Column {
+        if (reply != null) Surface(color = MaterialTheme.colorScheme.surfaceVariant) {
+            Row(Modifier.fillMaxWidth().padding(start = 12.dp), verticalAlignment = Alignment.CenterVertically) {
+                ReplyQuote(reply.message, Modifier.weight(1f))
+                IconButton(onClick = { viewModel.cancelReply(reply.channelId) }) {
+                    Icon(Icons.Default.Close, stringResource(R.string.reply_cancel))
+                }
+            }
+        }
         if (error.isNotEmpty()) Text(error, color = MaterialTheme.colorScheme.error, modifier = Modifier.padding(8.dp))
         if (preparing || preparation?.jobs?.isNotEmpty() == true) Text(stringResource(R.string.media_preparing), modifier = Modifier.padding(8.dp))
         else if (preparation?.failed == true) Text(stringResource(R.string.attachment_prepare_failed), color = MaterialTheme.colorScheme.error,
             modifier = Modifier.padding(8.dp))
         key(target) { InputBar(
-            text = text, onTextChange = { text = it }, enabled = !preparing,
+            text = text, onTextChange = { text = it; textRevision++ }, enabled = !preparing && !pending, focusRevision = reply?.revision ?: 0,
             onSend = {
+                if (preparing || pending) return@InputBar
                 val attachment = selected
                 val video = sendAsVideo
-                selected = null
-                if (attachment != null) scope.launch {
+                val sentText = text.text
+                val revision = textRevision
+                val capturedReply = reply
+                scope.launch {
                     preparing = true; error = ""
                     var cache: String? = null
+                    var attachmentSaved = attachment == null
+                    var textSaved = sentText.isBlank()
                     try {
-                        withContext(Dispatchers.IO) { cache = viewModel.copyUriToCache(context, attachment.uri, attachment.name) }
-                        val path = cache ?: throw IllegalStateException(AppLanguage.text(R.string.attachment_copy_failed))
-                        if (video) viewModel.sendVideoMessage(path, attachment.target)
-                        else viewModel.sendAttachment(path, attachment.target, attachment.name)
-                        cache = null // Native/backend принял собственный cache-файл.
+                        if (attachment != null) {
+                            withContext(Dispatchers.IO) { cache = viewModel.copyUriToCache(context, attachment.uri, attachment.name) }
+                            val path = cache ?: throw IllegalStateException(AppLanguage.text(R.string.attachment_copy_failed))
+                            val submission = if (video) viewModel.sendVideoMessage(path, attachment.target, capturedReply, clearReply = false)
+                                else viewModel.sendAttachment(path, attachment.target, attachment.name, capturedReply)
+                            cache = null // Задача ViewModel владеет файлом до завершения отправки.
+                            attachmentSaved = submission.await()
+                            if (attachmentSaved && selected === attachment) selected = null
+                        }
+                        if (sentText.isNotBlank()) {
+                            textSaved = if (target is ConversationTarget.Channel)
+                                viewModel.sendChannelText(target, sentText, capturedReply).await()
+                            else { onSendText(sentText); true }
+                            if (textSaved && textRevision == revision) { text = TextFieldValue(); textRevision++ }
+                        }
+                        if (attachmentSaved && textSaved) viewModel.finishReply(capturedReply)
                     } catch (e: CancellationException) { throw e }
                     catch (e: Exception) {
                         LogManager.addLog("ERROR", "Attachment", "send failed: ${e.message}")
@@ -105,7 +141,6 @@ fun ConversationComposer(target: ConversationTarget, viewModel: ChatViewModel, o
                         preparing = false
                     }
                 }
-                if (text.text.isNotBlank()) { onSendText(text.text); text = TextFieldValue() }
             },
             isRecording = recording, isRecordingLocked = locked, recordingDurationMs = duration, recordingLevel = level,
             onPttPressed = { viewModel.startVoiceRecording(target) },

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

@@ -1,6 +1,8 @@
 package com.utun.chat.ui.components
 
 import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.lazy.*
 import androidx.compose.runtime.*
 import android.content.Intent
@@ -9,6 +11,14 @@ import android.net.Uri
 import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.ui.platform.LocalClipboardManager
+import androidx.compose.ui.platform.LocalHapticFeedback
+import androidx.compose.ui.hapticfeedback.HapticFeedbackType
+import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.Alignment
@@ -32,6 +42,7 @@ import com.utun.chat.viewmodel.ChatViewModel
 
 /** Общий список; направление включено в ключ, поскольку PM имеет два потока seq. */
 @Composable
+@OptIn(ExperimentalMaterial3Api::class)
 fun ConversationMessages(target: ConversationTarget, messages: List<Message>, state: LazyListState,
                          playbackState: ChatViewModel.PlaybackState, modifier: Modifier = Modifier,
                          onPlayVoice: (String, Int) -> Unit, onSeekVoice: (String, Int, Int) -> Unit,
@@ -40,8 +51,27 @@ fun ConversationMessages(target: ConversationTarget, messages: List<Message>, st
                          onInviteLink: (String) -> Unit = {}, reactionCatalog: List<com.utun.chat.data.ReactionState> = emptyList(),
                          onVote: (Message, List<Int>, String) -> Unit = { _, _, _ -> },
                          onReact: (Message, Int?) -> Unit = { _, _ -> },
-                         authorName: (Long) -> String = { "0x%016x".format(it) }) {
+                         authorName: (Long) -> String = { "0x%016x".format(it) },
+                         onReply: (Message) -> Unit = {}, onOriginal: (String) -> Unit = {},
+                         originals: Map<String, Message> = emptyMap(), highlightedId: String = "") {
     val context = LocalContext.current
+    val clipboard = LocalClipboardManager.current
+    val haptic = LocalHapticFeedback.current
+    var selectedMessage by remember(target) { mutableStateOf<Message?>(null) }
+    selectedMessage?.let { selected ->
+        ModalBottomSheet(onDismissRequest = { selectedMessage = null }) {
+            ListItem(headlineContent = { Text(stringResource(R.string.reply)) }, modifier = Modifier.clickable {
+                selectedMessage = null
+                onReply(selected)
+            })
+            if (selected.contentType == "text/plain") ListItem(headlineContent = { Text(stringResource(R.string.message_copy)) },
+                modifier = Modifier.clickable {
+                    clipboard.setText(AnnotatedString(selected.text))
+                    selectedMessage = null
+                })
+            Spacer(Modifier.height(16.dp))
+        }
+    }
     var openFailed by remember { mutableStateOf(false) }
     val onLink: (String) -> Unit = { link ->
         if (link.startsWith("utun://")) onInviteLink(link)
@@ -85,16 +115,26 @@ fun ConversationMessages(target: ConversationTarget, messages: List<Message>, st
             Row(Modifier.fillMaxWidth(), verticalAlignment = Alignment.Bottom) {
                 if (!message.isOutgoing) UserAvatar(group, message.authorNodeId, message.author,
                     modifier = Modifier.padding(start = 8.dp, bottom = 4.dp), size = 54.4.dp)
-                Box(Modifier.weight(1f)) {
+                val actions = if (target is ConversationTarget.Channel && message.messageId.isNotEmpty())
+                    Modifier.messageLongPress(stringResource(R.string.message_actions)) {
+                        haptic.performHapticFeedback(HapticFeedbackType.LongPress)
+                        selectedMessage = message
+                    } else Modifier
+                Box(Modifier.weight(1f).then(actions).then(if (message.messageId == highlightedId && highlightedId.isNotEmpty())
+                    Modifier.background(MaterialTheme.colorScheme.primary.copy(alpha = 0.18f)) else Modifier)) {
                     Column {
                         val footer: @Composable () -> Unit = {
                             if (target is ConversationTarget.Channel && message.messageId.isNotEmpty())
                                 MessageReactions(message, reactionCatalog, onReact)
                         }
+                        val header: @Composable () -> Unit = {
+                            if (target is ConversationTarget.Channel && message.replyTo.isNotEmpty())
+                                ReplyQuote(originals[message.replyTo], Modifier.fillMaxWidth()) { onOriginal(message.replyTo) }
+                        }
                         if (target is ConversationTarget.Channel && message.contentType == "poll")
-                            PollMessageBubble(message, onVote, authorName, footer)
+                            PollMessageBubble(message, onVote, authorName, footer, header)
                         else MessageBubble(message, playbackState, onPlayVoice, onSeekVoice, onDownloadFile,
-                            onOpenFile, onOpenImage, onPlayVideo, onLink, footer)
+                            onOpenFile, onOpenImage, onPlayVideo, onLink, footer, header)
                     }
                 }
                 if (message.isOutgoing) UserAvatar(group, message.authorNodeId, message.author,