"""查询已安装插件工具"""

import json
from typing import Optional, Type

from pydantic import BaseModel, Field

from app.agent.tools.base import MoviePilotTool
from app.core.plugin import PluginManager
from app.log import logger


class QueryInstalledPluginsInput(BaseModel):
    """查询已安装插件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",
    )


class QueryInstalledPluginsTool(MoviePilotTool):
    name: str = "query_installed_plugins"
    description: str = (
        "Query all installed plugins in MoviePilot. Returns a list of installed plugins with their ID, name, "
        "description, version, author, running state, and other information. "
        "Use this tool to discover what plugins are available before querying plugin capabilities or running plugin commands."
    )
    args_schema: Type[BaseModel] = QueryInstalledPluginsInput

    def get_tool_message(self, **kwargs) -> Optional[str]:
        """生成友好的提示消息"""
        return "正在查询已安装插件"

    async def run(self, **kwargs) -> str:
        logger.info(f"执行工具: {self.name}")
        try:
            plugin_manager = PluginManager()
            local_plugins = plugin_manager.get_local_plugins()
            # 仅返回已安装的插件
            installed_plugins = [plugin for plugin in local_plugins if plugin.installed]

            if not installed_plugins:
                return "当前没有已安装的插件"

            plugins_list = []
            for plugin in installed_plugins:
                plugins_list.append(
                    {
                        "id": plugin.id,
                        "plugin_name": plugin.plugin_name,
                        "plugin_desc": plugin.plugin_desc,
                        "plugin_version": plugin.plugin_version,
                        "plugin_author": plugin.plugin_author,
                        "state": plugin.state,
                        "has_page": plugin.has_page,
                    }
                )

            total_count = len(plugins_list)
            result_json = json.dumps(plugins_list, ensure_ascii=False, indent=2)

            if total_count > 50:
                limited_plugins = plugins_list[:50]
                limited_json = json.dumps(limited_plugins, ensure_ascii=False, indent=2)
                return f"注意：共找到 {total_count} 个已安装插件，为节省上下文空间，仅显示前 50 个。\n\n{limited_json}"

            return result_json
        except Exception as e:
            logger.error(f"查询已安装插件失败: {e}", exc_info=True)
            return f"查询已安装插件时发生错误: {str(e)}"