Enhance MoviePilotAgent to handle empty agent messages gracefully by providing a default error response, ensuring better user experience. Refactor message processing to streamline event loop execution.

app/agent/__init__.py

@@ -221,6 +221,8 @@ class MoviePilotAgent:
             agent_message = await self.callback_handler.get_message()
 
             # 发送Agent回复给用户（通过原渠道）
+            if agent_message:
+                # 发送回复
                 await self.send_agent_message(agent_message)
 
                 # 添加Agent回复到记忆
@@ -230,6 +232,9 @@ class MoviePilotAgent:
                     role="agent",
                     content=agent_message
                 )
+            else:
+                agent_message = "很抱歉，智能体出错了，未能生成回复内容。"
+                await self.send_agent_message(agent_message)
 
             return agent_message
 

app/chain/message.py

@@ -948,7 +948,6 @@ class MessageChain(ChainBase):
             session_id = self._get_or_create_session_id(userid)
             
             # 在事件循环中处理
-            try:
             GlobalVar.CURRENT_EVENT_LOOP.run_until_complete(
                 agent_manager.process_message(
                     session_id=session_id,
@@ -959,18 +958,6 @@ class MessageChain(ChainBase):
                     username=username
                 )
             )
-            except RuntimeError:
-                # 如果没有事件循环，创建新的
-                asyncio.run(
-                    agent_manager.process_message(
-                        session_id=session_id,
-                        user_id=str(userid),
-                        message=user_message,
-                        channel=channel.value if channel else None,
-                        source=source,
-                        username=username
-                    )
-                )
 
         except Exception as e:
             logger.error(f"处理AI智能体消息失败: {e}")