Merge pull request #23 from lorsanstand/dev

fix: send and recive message

.idea/workspace.sync-conflict-20260318-212257-2SDWFHM.xml

@@ -0,0 +1,142 @@
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.idea/workspace.sync-conflict-20260320-201210-2SDWFHM.xml

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+    <option name="version" value="3" />
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+  </component>
+</project>

BUGFIX_SUMMARY.md

@@ -0,0 +1,110 @@
+# Исправление проблемы с отправкой сообщений
+
+## Проблема
+Когда пользователь отправлял сообщение, оно не появлялось в чате ни у отправителя, ни у получателя до перезагрузки страницы.
+
+## Корневые причины
+
+### 1. **Backend - Порядок операций**
+В файле [backend/app/chats/service.py](backend/app/chats/service.py):
+- Сообщения отправлялись через WebSocket **ДО** коммита в БД
+- Это могло привести к отправке неполных или незапомненных данных
+
+**Исправление:** Перемещены вызовы `await session.commit()` **перед** `await cls._send_ws_message()` во всех трех методах:
+- `send_message()` - отправка нового сообщения
+- `update_message()` - редактирование сообщения  
+- `delete_message()` - удаление сообщения
+
+### 2. **Frontend - Отсутствие оптимистичного обновления**
+В файле [frontend/src/pages/ChatPage.tsx](frontend/src/pages/ChatPage.tsx):
+- Приложение ждало получения сообщения через WebSocket перед показом в UI
+- Без WebSocket подписки или задержки сообщение не отображалось
+
+**Исправление:** Добавлено оптимистичное обновление UI:
+- Сообщение добавляется в UI **сразу** после отправки с временным ID (`temp-{timestamp}`)
+- При получении подтверждения через WebSocket, временное сообщение заменяется на реальное
+- Если отправка завершится с ошибкой, временное сообщение удаляется
+
+### 3. **Backend - Логирование и обработка ошибок**
+В файле [backend/app/services/messenger_service.py](backend/app/services/messenger_service.py):
+- Добавлена обработка исключений при отправке WebSocket сообщений
+- Улучшено логирование (удален `print("test")`, заменен на `log.info()`)
+
+## Что изменилось
+
+### Backend (3 файла)
+1. **service.py** - 3 исправления:
+   - `send_message()`: commit перед WebSocket отправкой
+   - `update_message()`: commit перед WebSocket отправкой
+   - `delete_message()`: commit перед WebSocket отправкой
+
+2. **messenger_service.py** - 2 исправления:
+   - Добавлен try-catch в `handle_message()`
+   - Заменено логирование с `print()` на `log.info()`
+
+### Frontend (1 файл)
+1. **ChatPage.tsx** - 2 исправления:
+   - `handleSendMessage()`: добавлено оптимистичное обновление UI
+   - `ws.onmessage()`: улучшена логика замены временных сообщений на реальные
+
+## Поток отправки сообщения (новый)
+
+```
+1. Пользователь нажимает "Отправить"
+   ↓
+2. Frontend создает временное сообщение (temp-ID) и добавляет в UI
+   ↓
+3. Frontend отправляет запрос к backend (/chats/message)
+   ↓
+4. Backend сохраняет сообщение в БД
+   ↓
+5. Backend коммитит транзакцию в БД
+   ↓
+6. Backend отправляет сообщение в Redis (pub/sub)
+   ↓
+7. Redis PubSub listener отправляет WebSocket всем участникам чата
+   ↓
+8. Frontend получает сообщение через WebSocket и заменяет temp-сообщение на реальное
+   ↓
+9. UI обновлена и синхронизирована со всеми участниками
+```
+
+## Тестирование
+
+1. **Базовое тестирование:**
+   - Откройте приложение в 2 браузерах для разных пользователей
+   - Отправьте сообщение из первого браузера
+   - Сообщение должно появиться **сразу** в обоих браузерах
+   - НЕ требуется перезагрузка страницы
+
+2. **Проверка временных сообщений:**
+   - В DevTools откройте Console
+   - Ищите сообщение вида `temp-TIMESTAMP` в начальном списке
+   - После получения WebSocket ответа, ID должно измениться на UUID
+
+3. **Проверка обновлений:**
+   - Отредактируйте сообщение
+   - Изменение должно появиться сразу у обоих пользователей
+
+4. **Проверка удаления:**
+   - Удалите сообщение
+   - Оно должно исчезнуть сразу у обоих пользователей
+
+## Возможные проблемы и решения
+
+### Проблема: Сообщения все еще не появляются
+**Решение:** Проверьте:
+1. Redis работает (`docker ps | grep redis`)
+2. Backend логирует: "Starting Redis PubSub subscriber"
+3. WebSocket подключение открыто (`ws.onopen` в Console)
+4. Сообщение отправляется: смотрите сетевые запросы в DevTools
+
+### Проблема: Дублирование сообщений
+**Решение:** Может быть, если:
+1. Сообщение приходит через WebSocket и добавляется дважды
+2. Проверьте логику замены temp-сообщений в `onmessage`
+
+### Проблема: Сообщение показывается с ошибкой
+**Решение:**
+1. Проверьте формат данных в backend (логи Redis)
+2. Убедитесь, что Message тип совпадает со схемой

backend/app/auth/dependencies.py

@@ -51,7 +51,7 @@ async def get_current_superuser(current_user: UserModel = Depends(get_current_us
 
 async def get_current_verified_user(current_user: UserModel = Depends(get_current_user)):
     if not current_user.is_verified:
-        log.debug("User has not confirmed the email.", extra={"user_id": str(current_user.id)})
-        raise HTTPException(status.HTTP_403_FORBIDDEN, detail="verify email")
+        log.debug("User has not confirmed the email", extra={"user_id": str(current_user.id)})
+        raise HTTPException(status.HTTP_403_FORBIDDEN, detail="Verify email")
 
     return current_user

backend/app/chats/service.py

@@ -92,14 +92,16 @@ class ChatService:
                 )
             )
 
-            await cls._send_ws_message(members_ids, Message.model_validate(message_db))
-
             await ChatDAO.update(
                 session,
                 ChatModel.id==target_chat_id,
                 obj_in={"last_message": message.content}
             )
             await session.commit()
+            
+            # Send WebSocket message AFTER commit to ensure data is persisted
+            await cls._send_ws_message(members_ids, Message.model_validate(message_db))
+            
             log.info("Message sent", extra={"message_id": message_db.id, "sender_id": sender.id, "chat_id": target_chat_id})
             return message_db
 
@@ -202,9 +204,11 @@ class ChatService:
 
             member_ids = [member.user_id for member in members]
 
+            await session.commit()
+            
+            # Send WebSocket message AFTER commit
             await cls._send_ws_message(member_ids, Message.model_validate(message_update_db))
 
-            await session.commit()
             log.info("Message update successfully", extra={"user_id": user.id, "message_id": message_update.id})
             return message_update_db
 
@@ -235,7 +239,9 @@ class ChatService:
 
             await MessageDAO.delete(session, MessageModel.id==message_id)
             
+            await session.commit()
+            
+            # Send WebSocket message AFTER commit
             await cls._delete_ws_message(member_ids, message_id)
 
-            await session.commit()
             log.info("Message delete successfully", extra={"user_id": user.id, "message_id": message_exist.id})

backend/app/services/messenger_service.py

@@ -18,7 +18,7 @@ class PubSubMessenger:
 
     @classmethod
     async def subscribe_to_channels(cls):
-        print("test")
+        log.info("Starting Redis PubSub subscriber")
         redis_client = await get_redis()
         pubsub = redis_client.pubsub()
 
@@ -46,11 +46,14 @@ class PubSubMessenger:
     @classmethod
     async def handle_message(cls, payload, ws: WebSocket):
         log.debug("Message start sending type: %s", payload["type"])
-        if payload["type"] == "send":
-            await ws.send_json(payload["data"])
-        elif payload["type"] == "del":
-            await ws.send_json({"type": "del", "message_id": payload["data"]})
-        log.info(f"Message sent to user via WebSocket")
+        try:
+            if payload["type"] == "send":
+                await ws.send_json(payload["data"])
+            elif payload["type"] == "del":
+                await ws.send_json({"type": "del", "message_id": payload["data"]})
+            log.info(f"Message sent to user via WebSocket")
+        except Exception as e:
+            log.error(f"Error sending WebSocket message: {e}", exc_info=True)
 
 
 

frontend/src/pages/ChatPage.tsx

@@ -142,38 +142,43 @@ export default function ChatPage() {
           
           // Add or update message in current chat if it belongs to it
           if (selectedChat && message.chat_id === selectedChat.chat_id) {
-            const isNewMessage = !messages.some(m => m.id === message.id);
-            
             setMessages(prev => {
-              // Check if message already exists (update it if edited)
+              // Check if this is replacing a temporary message (sent by current user)
+              const tempMessageIndex = prev.findIndex(m => m.id.startsWith('temp-') && m.sender_id === message.sender_id && m.content === message.content);
+              
+              // Check if message already exists
               const existingIndex = prev.findIndex(m => m.id === message.id);
-              if (existingIndex !== -1) {
-                // Update existing message
+              
+              if (tempMessageIndex !== -1) {
+                // Replace temporary message with real one
+                const updated = [...prev];
+                updated[tempMessageIndex] = message;
+                return updated;
+              } else if (existingIndex !== -1) {
+                // Update existing message (edit case)
                 const updated = [...prev];
                 updated[existingIndex] = message;
                 return updated;
+              } else {
+                // Add new message from other user
+                return [...prev, message];
               }
-              // Add new message
-              return [...prev, message];
             });
             
             // Handle scroll and unread counter for new messages
-            if (isNewMessage) {
-              // Check if this is our own message
-              const isOwnMessage = message.sender_id === user?.id;
+            const isOwnMessage = message.sender_id === user?.id;
             
-              // Use ref to check current position synchronously
-              setTimeout(() => {
-                if (isOwnMessage || isAtBottomRef.current) {
-                  // Auto-scroll if it's our message or if at bottom
-                  scrollToBottom(true);
-                } else {
-                  // Increment unread counter if not at bottom and not our message
-                  setUnreadCount(prev => prev + 1);
-                  setShowScrollButton(true);
-                }
-              }, 100);
-            }
+            // Use ref to check current position synchronously
+            setTimeout(() => {
+              if (isOwnMessage || isAtBottomRef.current) {
+                // Auto-scroll if it's our message or if at bottom
+                scrollToBottom(true);
+              } else {
+                // Increment unread counter if not at bottom and not our message
+                setUnreadCount(prev => prev + 1);
+                setShowScrollButton(true);
+              }
+            }, 100);
           }
           
           // Update chat list with new last message
@@ -354,15 +359,32 @@ export default function ChatPage() {
     try {
       setSendingMessage(true);
       
+      const messageContent = messageText.trim();
+      
+      // Create a temporary message to show immediately (optimistic update)
+      const tempMessage: Message = {
+        id: `temp-${Date.now()}`, // Temporary ID
+        sender_id: user?.id || 0,
+        chat_id: selectedChat?.chat_id || '',
+        content: messageContent,
+        created_at: new Date().toISOString(),
+        updated_at: new Date().toISOString(),
+      };
+      
+      // Add message to UI immediately
+      setMessages(prev => [...prev, tempMessage]);
+      
       // Send message with chat_id (если чат существует) или recipient_id (если новый чат)
-      await chatService.sendMessage({
-        content: messageText.trim(),
+      const sentMessage = await chatService.sendMessage({
+        content: messageContent,
         chat_id: selectedChat?.chat_id,
         recipient_id: selectedChat?.user_id,
       });
 
-      // Don't add message locally - it will come via WebSocket
-      // This prevents duplication
+      // Replace temporary message with real one from backend
+      setMessages(prev => 
+        prev.map(m => m.id === tempMessage.id ? sentMessage : m)
+      );
       
       // Clear input
       setMessageText('');
@@ -370,7 +392,7 @@ export default function ChatPage() {
       // Update chat list with new last message
       const updatedChats = chats.map(chat => 
         chat.chat_id === selectedChat?.chat_id 
-          ? { ...chat, last_message: messageText.trim() }
+          ? { ...chat, last_message: messageContent }
           : chat
       );
       setChats(updatedChats);
@@ -378,11 +400,18 @@ export default function ChatPage() {
       
       // Update cache for specific chat
       if (selectedChat?.chat_id) {
-        updateChatCache(selectedChat.chat_id, { last_message: messageText.trim() });
+        updateChatCache(selectedChat.chat_id, { last_message: messageContent });
       }
+      
+      // Auto-scroll to bottom
+      setTimeout(() => {
+        scrollToBottom(true);
+      }, 100);
     } catch (err: any) {
       console.error('Failed to send message:', err);
       alert('Не удалось отправить сообщение');
+      // Remove temporary message if sending failed
+      setMessages(prev => prev.filter(m => !m.id.startsWith('temp-')));
     } finally {
       setSendingMessage(false);
       // Keep input focused after everything is done