"""查询媒体库工具"""

import json
from typing import Optional, List

from app.agent.tools.base import MoviePilotTool
from app.db.mediaserver_oper import MediaServerOper
from app.log import logger
from app.schemas import MediaServerItem


class QueryMediaLibraryTool(MoviePilotTool):
    name: str = "query_media_library"
    description: str = "查询媒体库状态，查看已入库的媒体文件情况。"

    async def _arun(self, explanation: str, media_type: Optional[str] = "all",
                    title: Optional[str] = None, year: Optional[str] = None, **kwargs) -> str:
        logger.info(f"执行工具: {self.name}, 参数: media_type={media_type}, title={title}")
        try:
            media_server_oper = MediaServerOper()
            filtered_medias: List[MediaServerItem] = media_server_oper.exists(title=title, year=year, mtype=media_type)
            if filtered_medias:
                return json.dumps([m.to_dict() for m in filtered_medias])
            return "媒体库中未找到相关媒体。"
        except Exception as e:
            logger.error(f"查询媒体库失败: {e}", exc_info=True)
            return f"查询媒体库时发生错误: {str(e)}"