# ///
# news_plugin.py
# 描述：新闻定时推送插件，定时获取新闻并发送到指定节点，支持 cron 表达式
# 作者：AI Generated
# 创建日期：2026-04-06
# ///

import asyncio
import time
import concurrent.futures
from datetime import datetime
from typing import Any, Dict, List
from croniter import croniter
from plugins.base import ScheduledTaskPlugin


class NewsScheduledPlugin(ScheduledTaskPlugin):
    plugin_name = "news_scheduled"
    plugin_version = "1.0.0"
    plugin_description = "新闻定时推送插件，支持 cron 表达式定时发送新闻到微信"

    def __init__(self):
        super().__init__()
        self.node_id = ""
        self.receiver = ""
        self.news_count = 5
        self.cron_expression = "0 8 * * *"
        self.news_api_url = "https://news.runoob.com/api/news"
        self._enabled = False
        self._last_run_time = None

    def initialize(self, config: Dict[str, Any]) -> bool:
        self.config = config
        self.node_id = config.get("node_id", "")
        self.receiver = config.get("receiver", "")
        self.news_count = config.get("news_count", 5)
        self.cron_expression = config.get("cron", "0 8 * * *")
        self.news_api_url = config.get("news_api_url", "https://news.runoob.com/api/news")
        return True

    def enable(self):
        self._enabled = True
        self.enabled = True

    def disable(self):
        self._enabled = False
        self.enabled = False

    def get_cron_expression(self) -> str:
        return self.cron_expression

    def should_run_and_get_next(self) -> tuple:
        try:
            now = datetime.now()
            cron = croniter(self.cron_expression, now)
            prev_run = cron.get_prev(datetime)
            next_run = cron.get_next(datetime)
            if self._last_run_time is None or self._last_run_time != prev_run:
                self._last_run_time = prev_run
                return True, next_run
            return False, next_run
        except Exception as e:
            return False, None

    def run_task(self) -> Dict[str, Any]:
        if not self.node_id or not self.receiver:
            return {"success": False, "error": "未配置 node_id 或 receiver"}

        news = self.fetch_news()
        if not news:
            return {"success": False, "error": "获取新闻失败"}

        message = self.format_news_message(news)
        try:
            with concurrent.futures.ThreadPoolExecutor(max_workers=1) as executor:
                future = executor.submit(self._send_message_sync, message)
                return future.result(timeout=30)
        except Exception as e:
            return {"success": False, "error": str(e)}

    def _send_message_sync(self, message: str) -> Dict[str, Any]:
        from services.node_manager import node_manager
        from database_service import get_db_service

        db_service = get_db_service()
        if db_service:
            node = db_service.get_node(self.node_id)
            if node:
                existing = node_manager.nodes.get(self.node_id)
                if existing:
                    existing.api_url = node.api_url
                    existing.api_key = node.api_key
                else:
                    from services.node_manager import Node
                    new_node = Node(
                        node_id=node.node_id,
                        name=node.name,
                        api_url=node.api_url,
                        api_key=node.api_key,
                        description=node.description or "",
                        group=node.group or "default"
                    )
                    node_manager.nodes[node.node_id] = new_node

        try:
            loop = asyncio.new_event_loop()
            asyncio.set_event_loop(loop)
            try:
                result = loop.run_until_complete(
                    node_manager.send_message(
                        node_id=self.node_id,
                        who=self.receiver,
                        msg=message,
                        msg_type="text"
                    )
                )
            finally:
                loop.close()
            return result
        except Exception as e:
            return {"success": False, "error": str(e)}

    def fetch_news(self) -> List[Dict[str, Any]]:
        try:
            import httpx
            response = httpx.get(self.news_api_url, timeout=10)
            if response.status_code == 200:
                data = response.json()
                if isinstance(data, list):
                    return data[:self.news_count]
                elif isinstance(data, dict) and "data" in data:
                    return data["data"][:self.news_count]
            return self._get_sample_news()
        except Exception as e:
            return self._get_sample_news()

    def _get_sample_news(self) -> List[Dict[str, Any]]:
        return [
            {"title": "科技新闻：人工智能新突破", "url": "https://example.com/tech-ai"},
            {"title": "财经：股市今日上涨", "url": "https://example.com/stock"},
            {"title": "体育：足球比赛精彩回顾", "url": "https://example.com/football"},
            {"title": "娱乐：电影票房排行", "url": "https://example.com/movie"},
            {"title": "社会：民生政策解读", "url": "https://example.com/policy"},
        ][:self.news_count]

    def format_news_message(self, news: List[Dict[str, Any]]) -> str:
        if not news:
            return "今日暂无新闻"

        lines = ["📰 今日新闻", ""]
        for i, item in enumerate(news, 1):
            title = item.get("title", item.get("name", "无标题"))
            url = item.get("url", "")
            lines.append(f"{i}. {title}")
            if url:
                lines.append(f"   {url}")
            lines.append("")
        return "\n".join(lines)

    def execute(self, params: Dict[str, Any]) -> Dict[str, Any]:
        action = params.get("action", "send")
        if action == "send":
            return self.run_task()
        elif action == "fetch":
            news = self.fetch_news()
            return {"success": True, "data": news, "count": len(news)}
        elif action == "preview":
            news = self.fetch_news()
            message = self.format_news_message(news)
            return {"success": True, "message": message}
        elif action == "test":
            cron = croniter(self.cron_expression, datetime.now())
            prev_run = cron.get_prev(datetime)
            next_run = cron.get_next(datetime)
            return {
                "success": True,
                "cron": self.cron_expression,
                "prev_run": str(prev_run),
                "next_run": str(next_run)
            }
        return {"success": False, "error": "未知操作"}