feat(agent): 新增媒体详情查询工具

app/agent/tools/impl/query_media_detail.py

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+"""查询媒体详情工具"""
+
+import json
+from typing import Optional, Type
+
+from pydantic import BaseModel, Field
+
+from app.agent.tools.base import MoviePilotTool
+from app.chain.media import MediaChain
+from app.log import logger
+from app.schemas import MediaType
+
+
+class QueryMediaDetailInput(BaseModel):
+    """查询媒体详情工具的输入参数模型"""
+    explanation: str = Field(..., description="Clear explanation of why this tool is being used in the current context")
+    tmdb_id: int = Field(..., description="TMDB ID of the media (movie or TV series)")
+
+
+class QueryMediaDetailTool(MoviePilotTool):
+    name: str = "query_media_detail"
+    description: str = "Query detailed media information from TMDB by ID. Returns core metadata including title, year, overview, status, genres, directors, actors, and season count for TV series."
+    args_schema: Type[BaseModel] = QueryMediaDetailInput
+
+    def get_tool_message(self, **kwargs) -> Optional[str]:
+        """根据查询参数生成友好的提示消息"""
+        tmdb_id = kwargs.get("tmdb_id")
+        return f"正在查询媒体详情: TMDB ID {tmdb_id}"
+
+    async def run(self, tmdb_id: int, **kwargs) -> str:
+        logger.info(f"执行工具: {self.name}, 参数: tmdb_id={tmdb_id}")
+
+        try:
+            media_chain = MediaChain()
+
+            # 通过自动媒体类型识别获取媒体信息（电影或电视剧）
+            mediainfo = await media_chain.async_recognize_media(tmdbid=tmdb_id, mtype=None)
+
+            if not mediainfo:
+                return json.dumps({
+                    "success": False,
+                    "message": f"未找到 TMDB ID {tmdb_id} 的媒体信息"
+                }, ensure_ascii=False)
+
+            # 精简 genres - 只保留名称
+            genres = [g.get("name") for g in (mediainfo.genres or []) if g.get("name")]
+
+            # 精简 directors - 只保留姓名和职位
+            directors = [
+                {
+                    "name": d.get("name"),
+                    "job": d.get("job")
+                }
+                for d in (mediainfo.directors or [])
+                if d.get("name")
+            ]
+
+            # 精简 actors - 只保留姓名和角色
+            actors = [
+                {
+                    "name": a.get("name"),
+                    "character": a.get("character")
+                }
+                for a in (mediainfo.actors or [])
+                if a.get("name")
+            ]
+
+            # 构建基础媒体详情信息
+            result = {
+                "success": True,
+                "tmdb_id": tmdb_id,
+                "type": mediainfo.type.value if mediainfo.type else None,
+                "title": mediainfo.title,
+                "year": mediainfo.year,
+                "overview": mediainfo.overview,
+                "status": mediainfo.status,
+                "genres": genres,
+                "directors": directors,
+                "actors": actors
+            }
+
+            # 如果是电视剧，添加电视剧特有信息
+            if mediainfo.type == MediaType.TV:
+                # 精简 season_info - 只保留基础摘要
+                season_info = [
+                    {
+                        "season_number": s.get("season_number"),
+                        "name": s.get("name"),
+                        "episode_count": s.get("episode_count"),
+                        "air_date": s.get("air_date")
+                    }
+                    for s in (mediainfo.season_info or [])
+                    if s.get("season_number") is not None
+                ]
+
+                result.update({
+                    "number_of_seasons": mediainfo.number_of_seasons,
+                    "number_of_episodes": mediainfo.number_of_episodes,
+                    "first_air_date": mediainfo.first_air_date,
+                    "last_air_date": mediainfo.last_air_date,
+                    "season_info": season_info
+                })
+
+            return json.dumps(result, ensure_ascii=False, indent=2)
+
+        except Exception as e:
+            error_message = f"查询媒体详情失败: {str(e)}"
+            logger.error(f"查询媒体详情失败: {e}", exc_info=True)
+            return json.dumps({
+                "success": False,
+                "message": error_message,
+                "tmdb_id": tmdb_id
+            }, ensure_ascii=False)