import os
import re
import time
import traceback
import requests
from typing import Dict, Any, List, Optional, Tuple

from loguru import logger

from base.plugin_common.message_plugin_interface import MessagePluginInterface
from base.plugin_common.plugin_interface import PluginStatus
from utils.decorator.plugin_decorators import plugin_stats_decorator
from utils.robot_cmd.robot_command import Feature, PermissionStatus, GroupBotManager
from wechat_ipad import WechatAPIClient


class DouyinParserError(Exception):
    """抖音解析器自定义异常基类"""
    pass


class DouyinParserPlugin(MessagePluginInterface):
    """抖音无水印解析插件"""

    @property
    def name(self) -> str:
        return "抖音解析"

    @property
    def version(self) -> str:
        return "1.0.0"

    @property
    def description(self) -> str:
        return "提供抖音链接无水印解析功能，支持视频下载和分享"

    @property
    def author(self) -> str:
        return "姜不吃先生"

    @property
    def command_prefix(self) -> Optional[str]:
        return ""  # 不需要前缀，直接匹配命令

    @property
    def commands(self) -> List[str]:
        return []  # 不使用命令触发，而是通过消息内容匹配

    def __init__(self):
        super().__init__()
        self.LOG = logger
        self.url_pattern = re.compile(r'https?://v\.douyin\.com/\w+/?')
        # 修改为使用插件目录下的down_load_dir文件夹
        self.download_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), "down_load_dir")
        # 确保下载目录存在
        if not os.path.exists(self.download_dir):
            os.makedirs(self.download_dir, exist_ok=True)

    def initialize(self, context: Dict[str, Any]) -> bool:
        """初始化插件"""
        self.LOG.info(f"正在初始化 {self.name} 插件...")

        # 保存上下文对象
        self.event_system = context.get("event_system")
        self.gbm = context.get("gbm")

        # 从配置中获取参数
        douyin_config = self._config.get("Douyin", {})
        self.enable = douyin_config.get("enable", True)
        self.http_proxy = douyin_config.get("http_proxy", "")
        self.download_mode = douyin_config.get("download_mode", "card")  # card或file

        self.LOG.info(f"[{self.name}] 插件初始化完成，代理设置: {self.http_proxy}")
        return True

    def start(self) -> bool:
        """启动插件"""
        self.LOG.info(f"[{self.name}] 插件已启动")
        self.status = PluginStatus.RUNNING
        return True

    def stop(self) -> bool:
        """停止插件"""
        self.LOG.info(f"[{self.name}] 插件已停止")
        self.status = PluginStatus.STOPPED
        return True

    def can_process(self, message: Dict[str, Any]) -> bool:
        """检查是否可以处理该消息"""
        if not self.enable:
            return False

        content = str(message.get("content", "")).strip()
        match = self.url_pattern.search(content)
        return match is not None

    @plugin_stats_decorator(plugin_name="抖音解析")
    def process_message(self, message: Dict[str, Any]) -> Tuple[bool, Optional[str]]:
        """处理消息"""
        content = str(message.get("content", "")).strip()
        self.LOG.debug(f"插件执行： {self.name}：{content}")
        sender = message.get("sender")
        roomid = message.get("roomid", "")
        gbm: GroupBotManager = message.get("gbm")

        bot: WechatAPIClient = message.get("bot")
        # 检查权限
        if roomid and gbm.get_group_permission(roomid, Feature.DOUYIN_PARSER) == PermissionStatus.DISABLED:
            return False, "没有权限"

        try:
            match = self.url_pattern.search(content)
            if not match:
                return False, "未找到抖音链接"

            original_url = self._clean_url(match.group(0))
            self.LOG.info(f"发现抖音链接: {original_url}")

            # 解析抖音视频
            video_info = self._parse_douyin(original_url)
            if not video_info:
                print(f"❌无法解析抖音视频信息")
                return False, "解析失败"

            video_url = video_info.get('video', '')
            title = video_info.get('title', '无标题')
            author = video_info.get('name', '未知作者')
            cover = video_info.get('cover', '')

            if not video_url:
                print(f"❌无法获取视频地址")
                return False, "获取视频地址失败"

            # 根据模式选择发送方式
            if self.download_mode == "file":
                # 下载并发送文件
                mp4_path = self._download_stream(video_url, os.path.join(self.download_dir, "douyin.mp4"))
                if mp4_path:
                    bot.send_video_message((roomid if roomid else sender),mp4_path)
                    return True, "发送视频文件成功"
                else:
                    print(f"❌下载视频失败")
                    return False, "下载视频失败"
            else:
                # 发送卡片
                self.message_util.send_rich_text(
                    "BOT-PC直接查看",
                    "gh_11",
                    title[:30],
                    f"PC直接查看-{title[:20]} - {author[:10]}",
                    video_url,
                    cover,
                    (roomid if roomid else sender)
                )
                return True, "发送卡片成功"

        except DouyinParserError as e:
            self.LOG.error(f"抖音解析错误: {e}")
            print(f"❌抖音解析失败: {str(e)}")
            return False, f"解析错误: {e}"
        except Exception as e:
            self.LOG.error(f"处理抖音链接出错: {e}\n{traceback.format_exc()}")
            print(f"❌处理抖音链接出错: {str(e)}")
            return False, f"处理出错: {e}"

    def _clean_url(self, url: str) -> str:
        """清理URL"""
        cleaned_url = url.strip().replace(';', '').replace('\n', '').replace('\r', '')
        self.LOG.debug(f"[抖音] 清理后的URL: {cleaned_url}")
        return cleaned_url

    def _clean_response_data(self, data: Dict[str, Any]) -> Dict[str, Any]:
        """清理响应数据"""
        if not data:
            return data
        data[
            'cover'] = "https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/7c/49/e1/7c49e1af-ce92-d1c4-9a93-0a316e47ba94/AppIcon_TikTok-0-0-1x_U007epad-0-1-0-0-85-220.png/512x512bb.jpg"
        return data

    def _get_real_video_url(self, video_url: str) -> str:
        """获取真实视频链接"""
        max_retries = 3  # 最大重试次数
        retry_delay = 2  # 重试延迟秒数
        max_redirects = 10  # 最大重定向次数，防止死循环
        proxies = {"http": self.http_proxy, "https": self.http_proxy} if self.http_proxy else None
        redirect_history = []

        for retry in range(max_retries):
            try:
                self.LOG.info(f"[抖音] 开始获取真实视频链接: {video_url} (第{retry + 1}次尝试)")
                headers = {
                    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',
                    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
                    'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
                    'Range': 'bytes=0-'
                }

                # 默认使用 allow_redirects=True 获取历史记录
                response = requests.get(video_url, headers=headers, proxies=proxies, allow_redirects=True, timeout=60)

                if response.history:
                    redirect_history = [resp.url for resp in response.history]
                    real_url = response.url
                else:
                    # response.history 为空，手动解析重定向
                    current_url = video_url
                    for _ in range(max_redirects):  # 限制最大重定向次数
                        resp = requests.get(current_url, headers=headers, proxies=proxies, allow_redirects=False,
                                            timeout=60)
                        new_url = resp.headers.get('Location')

                        if not new_url:
                            break  # 没有新的 Location，停止

                        if not new_url.startswith("http"):
                            from urllib.parse import urljoin
                            new_url = urljoin(current_url, new_url)  # 处理相对路径重定向

                        if new_url in redirect_history:
                            self.LOG.info(f"[抖音] 检测到循环重定向: {new_url}")
                            break  # 避免死循环

                        redirect_history.append(new_url)
                        self.LOG.info(f"[抖音] 发现重定向: {current_url} -> {new_url}")
                        current_url = new_url

                    real_url = current_url

                if redirect_history:
                    self.LOG.info(f"[抖音] 重定向历史: {redirect_history}")

                if real_url != video_url and ('v3-' in real_url.lower() or 'douyinvod.com' in real_url.lower()):
                    self.LOG.info(f"[抖音] 成功获取真实链接: {real_url}")
                    return real_url
                else:
                    self.LOG.info("[抖音] 未能获取到符合预期的视频链接，准备重试")
                    if retry < max_retries - 1:
                        time.sleep(retry_delay)
                        continue
                    return video_url

            except Exception as e:
                self.LOG.error(f"[抖音] 获取真实链接失败: {str(e)} (第{retry + 1}次尝试)")
                if retry < max_retries - 1:
                    time.sleep(retry_delay)
                    continue
                return video_url

        self.LOG.error("[抖音] 获取真实链接失败，已达到最大重试次数")
        return video_url

    def _parse_douyin(self, url: str) -> Dict[str, Any]:
        """解析抖音链接"""
        try:
            api_url = "http://192.168.2.240:9081/api/hybrid/video_data"
            clean_url = self._clean_url(url)
            params = {'url': clean_url, 'minimal': True}

            self.LOG.info(f"[抖音] 请求API: {api_url}, 参数: {repr(params)}")
            proxy = {"http": self.http_proxy, "https": self.http_proxy} if self.http_proxy else None
            response = requests.get(api_url, params=params, timeout=30, proxies=proxy)

            if response.status_code != 200:
                raise DouyinParserError(f"API请求失败，状态码: {response.status_code}")

            data = response.json()
            self.LOG.info(f"[抖音] API响应数据: {data}")

            if data.get("code") == 200:
                result = data.get("data", {})
                self.LOG.info(f"[抖音] API响应数据result: {result}")
                if result.get('video'):
                    result['video'] = self._get_real_video_url(result['video'])
                return self._clean_response_data(result)
            else:
                raise DouyinParserError(data.get("message", "未知错误"))
        except Exception as e:
            self.LOG.error(f"[抖音] 解析过程发生未知错误: {str(e)}\n{traceback.format_exc()}")
            raise DouyinParserError(f"未知错误: {str(e)}")

    def _download_stream(self, url, save_path):
        """
        从指定URL读取视频流并保存到本地
        :param url: 视频流的URL
        :param save_path: 本地保存路径（包含文件名，例如 "video.mp4"）
        """
        try:
            # 发送GET请求，启用流式传输
            response = requests.get(url, stream=True)

            # 检查请求是否成功
            response.raise_for_status()  # 如果状态码不是200，将抛出异常

            # 确保保存路径的目录存在
            os.makedirs(os.path.dirname(save_path) or ".", exist_ok=True)

            # 检查是否是视频流（可选，根据Content-Type判断）
            content_type = response.headers.get("Content-Type", "").lower()
            if "video" not in content_type and "application/octet-stream" not in content_type:
                self.LOG.warning(f"警告: 返回的可能不是视频流，Content-Type: {content_type}")
                self.LOG.warning(f"响应内容预览: {response.text[:100]}")  # 打印前100字符查看
                return None

            # 以二进制写入模式保存流数据
            with open(save_path, "wb") as file:
                for chunk in response.iter_content(chunk_size=1024):  # 分块读取，每块1KB
                    if chunk:  # 过滤空块
                        file.write(chunk)
            self.LOG.info(f"视频已下载到: {save_path}")
            return os.path.abspath(save_path)
        except requests.RequestException as e:
            self.LOG.error(f"请求失败: {e}")
        except IOError as e:
            self.LOG.error(f"文件写入失败: {e}")
        except Exception as e:
            self.LOG.error(f"发生未知错误: {e}")
        return None