from typing import Any, Dict, Optional
from services.config_manager import config_manager

class BaseService:
    """所有服务实现的基类，提供统一的配置处理功能"""
    
    def __init__(self, service_type: str, selected_role: Optional[Dict[str, Any]] = None):
        self.selected_role = selected_role
        self.service_type = service_type
        self.config = config_manager.get_service_config(service_type, selected_role)
    
    def get_config(self, key: str, default_value: Any = None) -> Any:
        """获取配置值，按照优先级规则"""
        if key in self.config:
            return self.config[key]
        return config_manager.get_config_value(key, self.selected_role, default_value)
    
    def update_config(self, new_role_config: Dict[str, Any] = None) -> None:
        """更新服务配置，用于动态切换角色时"""
        self.selected_role = new_role_config if new_role_config else self.selected_role
        self.config = config_manager.get_service_config(self.service_type, self.selected_role)