Исправлен механизм прочтения сообщений

client-web/src/modules/chats/application/chatStore.ts

@@ -125,9 +125,9 @@ export const useChatStore = create<ChatState>((set, get) => ({
       set({ isLoadingMessages: true });
       const currentMessages = state.messages[chatId] || [];
       const cursor = !reset && currentMessages.length > 0 ? currentMessages[0].sequenceId.toString() : undefined;
-      
+
       const fetched = await ChatApi.getMessages(chatId, cursor);
-      
+
       set((state) => {
         // Merge fetched messages with any that arrived via socket
         const existing = reset ? [] : (state.messages[chatId] || []);
@@ -401,6 +401,7 @@ export const useChatStore = create<ChatState>((set, get) => ({
         if (m.sequenceId <= lastReadSequenceId) {
           const alreadyRead = m.readBy?.some((r) => r.userId === userId);
           if (alreadyRead) return m;
+          // Увеличиваем счётчик только если текущий пользователь читает чужие сообщения
           if (userId === currentUserId && m.senderId !== currentUserId) newlyReadCount++;
           return { ...m, readBy: [...(m.readBy || []), { userId }] };
         }
@@ -412,6 +413,7 @@ export const useChatStore = create<ChatState>((set, get) => ({
       const updatedChats = state.chats.map((chat) => {
         if (chat.id === chatId) {
           const updatedLastMessages = chat.messages?.map(updateMsg);
+          // Уменьшаем unreadCount только если текущий пользователь прочитал сообщения
           if (userId === currentUserId) {
             return { ...chat, messages: updatedLastMessages, unreadCount: Math.max(0, (chat.unreadCount || 0) - newlyReadCount) };
           }
@@ -475,16 +477,16 @@ export const useChatStore = create<ChatState>((set, get) => ({
   addChat: (chat) => {
     set((state) => {
       const existing = state.chats.find((c) => c.id === chat.id);
-      
+
       const messagesFromState = state.messages[chat.id] || [];
       const messagesToUse = messagesFromState.length > 0 ? messagesFromState : (chat.messages || []);
-      
+
       let unreadCount = chat.unreadCount || 0;
       if (!existing && messagesFromState.length > 0) {
         const userId = useAuthStore.getState().user?.id;
         unreadCount = messagesFromState.filter((m) => m.senderId !== userId && !m.readBy?.some(r => r.userId === userId)).length;
       }
-      
+
       const updatedChat = { ...chat, messages: messagesToUse.length > 0 ? [messagesToUse[messagesToUse.length - 1]] : [], unreadCount };
 
       if (existing) {
@@ -524,9 +526,9 @@ export const useChatStore = create<ChatState>((set, get) => ({
       const existing = state.pinnedMessages[chatId] || [];
       if (existing.some(m => m.id === message.id)) return state;
       return {
-        pinnedMessages: { 
-          ...state.pinnedMessages, 
-          [chatId]: [...existing, message] 
+        pinnedMessages: {
+          ...state.pinnedMessages,
+          [chatId]: [...existing, message]
         },
       };
     });
@@ -550,7 +552,7 @@ export const useChatStore = create<ChatState>((set, get) => ({
     try {
       set({ isLoadingMessages: true });
       const fetched = await ChatApi.getMessages(chatId, undefined, sequenceId, 50);
-      
+
       set((state) => ({
         messages: { ...state.messages, [chatId]: fetched },
         // Since we jumped, we assume there is more history to load above