add banbanmini backend

talkingq-url/services/device_service.py

@@ -0,0 +1,50 @@
+from typing import Optional, Dict
+from services.device_config import device_config_manager, DeviceConfig
+from services.role_manager import role_manager
+from services.conversation_history import conversation_history_manager, DeviceConversationHistory
+from handlers.prompt_sound_handler import send_welcome_sound
+from utils.logger import session_logger
+
+class DeviceService:
+    async def get_device_role(self, device_id: str) -> Dict:
+        """获取设备当前使用的角色"""
+        from handlers.command_handler import get_device_role as handler_get_device_role
+        device_config = await device_config_manager.get_config(device_id, force_refresh=True)
+        selected_role = await handler_get_device_role(device_id)
+        result = {
+            "role_key": selected_role.get("role_key", ""),
+            "name": selected_role.get("name", "未命名角色"),
+            "description": selected_role.get("description", ""),
+            "preferred_language": device_config.preferred_language if device_config else None
+        }
+        if "multilingual" in selected_role:
+            result["languages"] = list(selected_role["multilingual"].keys())
+        return result
+    
+    async def update_device_role(self, device_id: str, role_key: str, language: Optional[str] = None) -> Dict:
+        """更新设备角色配置"""
+        role = await role_manager.get_role(role_key)
+        if not role:
+            raise ValueError(f"角色 {role_key} 不存在")
+        
+        try:
+            current_config = await device_config_manager.get_config(device_id, force_refresh=True)
+            preserved_language = language or (current_config.preferred_language if current_config else None)
+            device_config = DeviceConfig(selected_role_key=role_key, preferred_language=preserved_language)
+            await device_config_manager.set_config(device_id, device_config)
+            
+            await conversation_history_manager.set_history(device_id, DeviceConversationHistory())
+            await send_welcome_sound(device_id, role_key, preserved_language)
+            
+            session_logger.info(device_id, "config", f"设备的角色已通过API更新为 {role_key}, 语言: {preserved_language or '默认'}")
+            return {
+                "status": "success", 
+                "device_id": device_id, 
+                "role_key": role_key,
+                "language": preserved_language
+            }
+        except Exception as e:
+            session_logger.error(device_id, "config", f"通过API更新角色时出错: {str(e)}")
+            raise
+
+device_service = DeviceService()