🐛 Add well defined mounted check in messages notifier

lib/pods/chat/messages_notifier.dart

@@ -128,7 +128,7 @@ class MessagesNotifier extends _$MessagesNotifier {
           uniqueMessages.add(message);
         }
       }
-      state = AsyncValue.data(uniqueMessages);
+      if (ref.mounted) state = AsyncValue.data(uniqueMessages);
     } finally {
       _isUpdatingState = false;
     }
@@ -350,7 +350,7 @@ class MessagesNotifier extends _$MessagesNotifier {
           offset: 0,
           take: _pageSize,
         );
-        state = AsyncValue.data(newMessages);
+        if (ref.mounted) state = AsyncValue.data(newMessages);
         return;
       }
 
@@ -408,7 +408,9 @@ class MessagesNotifier extends _$MessagesNotifier {
     } finally {
       talker.log('Finished message sync');
       // Always reset global syncing state, regardless of disposal
-      Future.microtask(() => ref.read(chatSyncingProvider.notifier).set(false));
+      Future.microtask(() {
+        if (ref.mounted) ref.read(chatSyncingProvider.notifier).set(false);
+      });
       _isSyncing = false;
     }
   }
@@ -498,7 +500,7 @@ class MessagesNotifier extends _$MessagesNotifier {
 
     _hasMore = messages.length == _pageSize;
 
-    state = AsyncValue.data(messages);
+    if (ref.mounted) state = AsyncValue.data(messages);
   }
 
   Future<void> loadMore() async {
@@ -509,7 +511,7 @@ class MessagesNotifier extends _$MessagesNotifier {
       Future.microtask(() => ref.read(chatSyncingProvider.notifier).set(true));
     }
     try {
-      final currentMessages = state.value ?? [];
+      final currentMessages = (ref.mounted ? state.value : null) ?? [];
       final offset = currentMessages.length;
 
       final newMessages = await listMessages(offset: offset, take: _pageSize);
@@ -518,9 +520,11 @@ class MessagesNotifier extends _$MessagesNotifier {
         _hasMore = false;
       }
 
+      if (ref.mounted) {
         state = AsyncValue.data(
           _sortMessages([...currentMessages, ...newMessages]),
         );
+      }
     } catch (err, stackTrace) {
       talker.log(
         'Error loading more messages',
@@ -531,12 +535,14 @@ class MessagesNotifier extends _$MessagesNotifier {
       showErrorAlert(err);
     } finally {
       // Always reset global syncing state, regardless of disposal
-      Future.microtask(() => ref.read(chatSyncingProvider.notifier).set(false));
+      Future.microtask(() {
+        if (ref.mounted) ref.read(chatSyncingProvider.notifier).set(false);
+      });
     }
   }
 
   Future<void> sendMessage(
-    WidgetRef ref,
+    WidgetRef outerRef,
     String content,
     List<UniversalFile> attachments, {
     SnPoll? poll,
@@ -569,14 +575,14 @@ class MessagesNotifier extends _$MessagesNotifier {
     _fileUploadProgress[localMessage.id] = {};
     await _database.saveMessageWithSender(localMessage);
 
-    final currentMessages = state.value ?? [];
+    final currentMessages = (ref.mounted ? state.value : null) ?? [];
     state = AsyncValue.data([localMessage, ...currentMessages]);
 
     try {
       var cloudAttachments = List.empty(growable: true);
       for (var idx = 0; idx < attachments.length; idx++) {
         final cloudFile = await FileUploader.createCloudFile(
-          ref: ref,
+          ref: outerRef,
           fileData: attachments[idx],
           onProgress: (progress, _) {
             _fileUploadProgress[localMessage.id]?[idx] = progress ?? 0.0;
@@ -619,6 +625,7 @@ class MessagesNotifier extends _$MessagesNotifier {
       await _database.deleteMessage(localMessage.id);
       await _database.saveMessageWithSender(updatedMessage);
 
+      if (ref.mounted) {
         final currentMessages = state.value ?? [];
         if (editingTo != null) {
           final newMessages = currentMessages
@@ -637,6 +644,8 @@ class MessagesNotifier extends _$MessagesNotifier {
           }).toList();
           state = AsyncValue.data(newMessages);
         }
+      }
+
       talker.log('Message with nonce $nonce sent successfully');
     } catch (e, stackTrace) {
       talker.log(
@@ -651,6 +660,7 @@ class MessagesNotifier extends _$MessagesNotifier {
         localMessage.id,
         MessageStatus.failed,
       );
+      if (ref.mounted) {
         final newMessages = (state.value ?? []).map((m) {
           if (m.id == localMessage.id) {
             return m..status = MessageStatus.failed;
@@ -658,6 +668,7 @@ class MessagesNotifier extends _$MessagesNotifier {
           return m;
         }).toList();
         state = AsyncValue.data(newMessages);
+      }
       showErrorAlert(e);
     }
   }
@@ -698,6 +709,7 @@ class MessagesNotifier extends _$MessagesNotifier {
       await _database.deleteMessage(pendingMessageId);
       await _database.saveMessageWithSender(updatedMessage);
 
+      if (ref.mounted) {
         final newMessages = (state.value ?? []).map((m) {
           if (m.id == pendingMessageId) {
             return updatedMessage;
@@ -705,6 +717,7 @@ class MessagesNotifier extends _$MessagesNotifier {
           return m;
         }).toList();
         state = AsyncValue.data(newMessages);
+      }
     } catch (e, stackTrace) {
       talker.log(
         'Failed to retry message $pendingMessageId',
@@ -718,6 +731,7 @@ class MessagesNotifier extends _$MessagesNotifier {
         pendingMessageId,
         MessageStatus.failed,
       );
+      if (ref.mounted) {
         final newMessages = (state.value ?? []).map((m) {
           if (m.id == pendingMessageId) {
             return m..status = MessageStatus.failed;
@@ -725,6 +739,7 @@ class MessagesNotifier extends _$MessagesNotifier {
           return m;
         }).toList();
         state = AsyncValue.data(_sortMessages(newMessages));
+      }
       showErrorAlert(e);
     }
   }
@@ -756,13 +771,14 @@ class MessagesNotifier extends _$MessagesNotifier {
     if (!isSilentMessage) {
       await _database.saveMessageWithSender(localMessage);
 
-      final currentMessages = state.value ?? [];
+      final currentMessages = (ref.mounted ? state.value : null) ?? [];
       final existingIndex = currentMessages.indexWhere(
         (m) =>
             m.id == localMessage.id ||
             (localMessage.nonce != null && m.nonce == localMessage.nonce),
       );
 
+      if (ref.mounted) {
         if (existingIndex >= 0) {
           final newList = [...currentMessages];
           newList[existingIndex] = localMessage;
@@ -773,6 +789,7 @@ class MessagesNotifier extends _$MessagesNotifier {
           );
         }
       }
+    }
 
     switch (remoteMessage.type) {
       case "messages.delete":
@@ -837,15 +854,17 @@ class MessagesNotifier extends _$MessagesNotifier {
 
     await _database.updateMessage(_database.messageToCompanion(updatedMessage));
 
-    final currentMessages = state.value ?? [];
+    final currentMessages = (ref.mounted ? state.value : null) ?? [];
     final index = currentMessages.indexWhere((m) => m.id == updatedMessage.id);
 
+    if (ref.mounted) {
       if (index >= 0) {
         final newList = [...currentMessages];
         newList[index] = updatedMessage;
         state = AsyncValue.data(_sortMessages(newList));
       }
     }
+  }
 
   Future<void> receiveMessageDeletion(String messageId) async {
     // Block message deletions during jumps to prevent list resets
@@ -857,7 +876,7 @@ class MessagesNotifier extends _$MessagesNotifier {
     talker.log('Received message deletion $messageId');
     _pendingMessages.remove(messageId);
 
-    final currentMessages = state.value ?? [];
+    final currentMessages = (ref.mounted ? state.value : null) ?? [];
     final messageIndex = currentMessages.indexWhere((m) => m.id == messageId);
 
     LocalChatMessage? messageToUpdate;
@@ -883,12 +902,14 @@ class MessagesNotifier extends _$MessagesNotifier {
 
     await _database.saveMessageWithSender(deletedMessage);
 
+    if (ref.mounted) {
       if (messageIndex != -1) {
         final newList = [...currentMessages];
         newList[messageIndex] = deletedMessage;
         state = AsyncValue.data(newList);
       }
     }
+  }
 
   Future<void> deleteMessage(String messageId) async {
     talker.log('Deleting message $messageId');
@@ -907,7 +928,7 @@ class MessagesNotifier extends _$MessagesNotifier {
       _pendingMessages.remove(messageId);
       await _database.deleteMessage(messageId);
 
-      final currentMessages = state.value ?? [];
+      final currentMessages = (ref.mounted ? state.value : null) ?? [];
       final newMessages = currentMessages
           .where((m) => m.id != messageId)
           .toList();
@@ -1063,7 +1084,7 @@ class MessagesNotifier extends _$MessagesNotifier {
       }
 
       // Check if message is already in current state to avoid duplicate loading
-      final currentMessages = state.value ?? [];
+      final currentMessages = (ref.mounted ? state.value : null) ?? [];
       final existingIndex = currentMessages.indexWhere(
         (m) => m.id == messageId,
       );