feat(chat): 聊天单向删除

core/routers/chat/services.py

@@ -11,7 +11,7 @@ from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy.orm import aliased, selectinload
 
 from core.base.exceptions import WebsocketTooManyRequests
-from core.db.models import User, Chat, ReadStatus, Message, chat_participant
+from core.db.models import User, Chat, ReadStatus, Message, ChatParticipant
 from core.routers.auth.schema import LoginUser
 from core.utils.helper import format_date
 
@@ -38,12 +38,14 @@ async def get_user_active_direct_chats(
             direct_chats_dict[str(direct_chat.guid)] = direct_chat.id
         return direct_chats_dict
 
+    return None
+
 
 async def get_unread_messages_per_chat(
         db_session: AsyncSession, chats: list[Chat], login_user: LoginUser
 ) -> list[dict]:
     """获取聊天未读消息数"""
-    unread_messages_info_per_chat = {chat.id: {'message_count': 0} for chat in chats}
+    unread_messages_info_per_chat: dict[int, dict] = {chat.id: {'message_count': 0} for chat in chats}
 
     # 查询消息情况
     read_status_alias = aliased(ReadStatus)
@@ -85,6 +87,7 @@ async def get_unread_messages_per_chat(
             updated_at=format_date(chat.updated_at),
             recipient_user=users[0],
             last_message=messages_info.get('message'),
+            is_delete=chat.is_deleted,
             unread_messages_count=messages_info.get('message_count'),
         ))
 
@@ -93,8 +96,8 @@ async def get_unread_messages_per_chat(
 
 async def get_chat(chat_guid, login_user: User, db_session: AsyncSession) -> Chat | None:
     subquery = (
-        select(chat_participant.c.chat_id)
-        .where(chat_participant.c.user_id == login_user.user_id)
+        select(ChatParticipant.chat_id)
+        .where(ChatParticipant.user_id == login_user.user_id)
     ).scalar_subquery()
 
     query = (