新增agent删除下载历史记录工具

app/agent/tools/impl/delete_download_history.py

@@ -0,0 +1,43 @@
+"""删除下载历史记录工具"""
+
+from typing import Optional, Type
+
+from pydantic import BaseModel, Field
+
+from app.agent.tools.base import MoviePilotTool
+from app.db import AsyncSessionFactory
+from app.db.models.downloadhistory import DownloadHistory
+from app.log import logger
+
+
+class DeleteDownloadHistoryInput(BaseModel):
+    """删除下载历史记录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",
+    )
+    history_id: int = Field(
+        ..., description="The ID of the download history record to delete"
+    )
+
+
+class DeleteDownloadHistoryTool(MoviePilotTool):
+    name: str = "delete_download_history"
+    description: str = "Delete a download history record by ID. This only removes the record from the database, does not delete any actual files."
+    args_schema: Type[BaseModel] = DeleteDownloadHistoryInput
+
+    def get_tool_message(self, **kwargs) -> Optional[str]:
+        history_id = kwargs.get("history_id")
+        return f"正在删除下载历史记录 ID: {history_id}"
+
+    async def run(self, history_id: int, **kwargs) -> str:
+        logger.info(f"执行工具: {self.name}, 参数: history_id={history_id}")
+
+        try:
+            async with AsyncSessionFactory() as db:
+                await DownloadHistory.async_delete(db, history_id)
+                return f"下载历史记录 ID: {history_id} 已成功删除"
+        except Exception as e:
+            logger.error(f"删除下载历史记录失败: {e}", exc_info=True)
+            return f"删除下载历史记录时发生错误: {str(e)}"