add banbanmini backend

talkingq-url/services/tts_error_manager.py

@@ -0,0 +1,38 @@
+import asyncio
+from typing import Set, Tuple
+from utils.logger import session_logger
+
+class TTSErrorManager:
+    """管理TTS错误状态，确保TTS_START和TTS_END之间最多只发送一次TTS_ERROR"""
+    def __init__(self):
+        self.error_sent_sessions: Set[Tuple[str, str]] = set()
+        self.active_tts_sessions: Set[Tuple[str, str]] = set()
+        self.lock = asyncio.Lock()
+    
+    async def start_tts_session(self, device_id: str, session_id: str):
+        """标记TTS会话开始，重置错误状态"""
+        session_key = (device_id, session_id)
+        async with self.lock:
+            self.active_tts_sessions.add(session_key)
+            if session_key in self.error_sent_sessions:
+                self.error_sent_sessions.remove(session_key)
+    
+    async def end_tts_session(self, device_id: str, session_id: str):
+        """标记TTS会话结束，清理状态"""
+        session_key = (device_id, session_id)
+        async with self.lock:
+            if session_key in self.active_tts_sessions:
+                self.active_tts_sessions.remove(session_key)
+            if session_key in self.error_sent_sessions:
+                self.error_sent_sessions.remove(session_key)
+    
+    async def can_send_error(self, device_id: str, session_id: str) -> bool:
+        """检查是否可以发送错误通知"""
+        session_key = (device_id, session_id)
+        async with self.lock:
+            if session_key in self.active_tts_sessions and session_key not in self.error_sent_sessions:
+                self.error_sent_sessions.add(session_key)
+                return True
+            return False
+
+tts_error_manager = TTSErrorManager()