/// <reference lib="dom" />
import path from 'path';
import { BasePlatformAdapter } from './base.js';
import type {
  AccountProfile,
  PublishParams,
  PublishResult,
  DateRange,
  AnalyticsData,
  CommentData,
} from './base.js';
import type { PlatformType, QRCodeInfo, LoginStatusResult } from '@media-manager/shared';
import { logger } from '../../utils/logger.js';

// Python 多平台发布服务配置
const PYTHON_PUBLISH_SERVICE_URL = process.env.PYTHON_PUBLISH_SERVICE_URL || process.env.XHS_SERVICE_URL || 'http://localhost:5005';

// 服务器根目录（用于构造绝对路径）
const SERVER_ROOT = path.resolve(process.cwd());

/**
 * 微信视频号平台适配器
 * 参考: matrix/tencent_uploader/main.py
 */
export class WeixinAdapter extends BasePlatformAdapter {
  readonly platform: PlatformType = 'weixin_video';
  readonly loginUrl = 'https://channels.weixin.qq.com/platform';
  readonly publishUrl = 'https://channels.weixin.qq.com/platform/post/create';
  
  protected getCookieDomain(): string {
    return '.weixin.qq.com';
  }
  
  async getQRCode(): Promise<QRCodeInfo> {
    try {
      await this.initBrowser();
      
      if (!this.page) throw new Error('Page not initialized');
      
      // 访问登录页面
      await this.page.goto('https://channels.weixin.qq.com/platform/login-for-iframe?dark_mode=true&host_type=1');
      
      // 点击二维码切换
      await this.page.locator('.qrcode').click();
      
      // 获取二维码
      const qrcodeImg = await this.page.locator('img.qrcode').getAttribute('src');
      
      if (!qrcodeImg) {
        throw new Error('Failed to get QR code');
      }
      
      return {
        qrcodeUrl: qrcodeImg,
        qrcodeKey: `weixin_${Date.now()}`,
        expireTime: Date.now() + 300000,
      };
    } catch (error) {
      logger.error('Weixin getQRCode error:', error);
      throw error;
    }
  }
  
  async checkQRCodeStatus(qrcodeKey: string): Promise<LoginStatusResult> {
    try {
      if (!this.page) {
        return { status: 'expired', message: '二维码已过期' };
      }
      
      // 检查是否扫码成功
      const maskDiv = this.page.locator('.mask').first();
      const className = await maskDiv.getAttribute('class');
      
      if (className && className.includes('show')) {
        // 等待登录完成
        await this.page.waitForTimeout(3000);
        
        const cookies = await this.getCookies();
        if (cookies && cookies.length > 10) {
          await this.closeBrowser();
          return { status: 'success', message: '登录成功', cookies };
        }
      }
      
      return { status: 'waiting', message: '等待扫码' };
    } catch (error) {
      logger.error('Weixin checkQRCodeStatus error:', error);
      return { status: 'error', message: '检查状态失败' };
    }
  }
  
  async checkLoginStatus(cookies: string): Promise<boolean> {
    try {
      await this.initBrowser();
      await this.setCookies(cookies);
      
      if (!this.page) throw new Error('Page not initialized');
      
      await this.page.goto(this.publishUrl);
      await this.page.waitForLoadState('networkidle');
      
      // 检查是否需要登录
      const needLogin = await this.page.$('div.title-name:has-text("视频号小店")');
      await this.closeBrowser();
      
      return !needLogin;
    } catch (error) {
      logger.error('Weixin checkLoginStatus error:', error);
      await this.closeBrowser();
      return false;
    }
  }
  
  async getAccountInfo(cookies: string): Promise<AccountProfile> {
    try {
      await this.initBrowser();
      await this.setCookies(cookies);
      
      if (!this.page) throw new Error('Page not initialized');
      
      await this.page.goto(this.loginUrl);
      await this.page.waitForLoadState('networkidle');
      
      // 获取账号信息
      const accountId = await this.page.$eval('span.finder-uniq-id', el => el.textContent?.trim() || '').catch(() => '');
      const accountName = await this.page.$eval('h2.finder-nickname', el => el.textContent?.trim() || '').catch(() => '');
      const avatarUrl = await this.page.$eval('img.avatar', el => el.getAttribute('src') || '').catch(() => '');
      
      await this.closeBrowser();
      
      return {
        accountId: accountId || `weixin_${Date.now()}`,
        accountName: accountName || '视频号账号',
        avatarUrl,
        fansCount: 0,
        worksCount: 0,
      };
    } catch (error) {
      logger.error('Weixin getAccountInfo error:', error);
      await this.closeBrowser();
      return {
        accountId: `weixin_${Date.now()}`,
        accountName: '视频号账号',
        avatarUrl: '',
        fansCount: 0,
        worksCount: 0,
      };
    }
  }
  
  /**
   * 检查 Python 发布服务是否可用
   */
  private async checkPythonServiceAvailable(): Promise<boolean> {
    try {
      const response = await fetch(`${PYTHON_PUBLISH_SERVICE_URL}/health`, {
        method: 'GET',
        signal: AbortSignal.timeout(3000),
      });
      if (response.ok) {
        const data = await response.json();
        return data.status === 'ok' && data.supported_platforms?.includes('weixin');
      }
      return false;
    } catch {
      return false;
    }
  }

  /**
   * 通过 Python 服务发布视频（带 AI 辅助）
   */
  private async publishVideoViaPython(
    cookies: string,
    params: PublishParams,
    onProgress?: (progress: number, message: string) => void
  ): Promise<PublishResult> {
    logger.info('[Weixin Python] Starting publish via Python service with AI assist...');
    onProgress?.(5, '正在通过 Python 服务发布...');

    try {
      // 将相对路径转换为绝对路径
      const absoluteVideoPath = path.isAbsolute(params.videoPath)
        ? params.videoPath
        : path.resolve(SERVER_ROOT, params.videoPath);

      const absoluteCoverPath = params.coverPath
        ? (path.isAbsolute(params.coverPath) ? params.coverPath : path.resolve(SERVER_ROOT, params.coverPath))
        : undefined;

      // 使用 AI 辅助发布接口
      const response = await fetch(`${PYTHON_PUBLISH_SERVICE_URL}/publish/ai-assisted`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({
          platform: 'weixin',
          cookie: cookies,
          title: params.title,
          description: params.description || params.title,
          video_path: absoluteVideoPath,
          cover_path: absoluteCoverPath,
          tags: params.tags || [],
          post_time: params.scheduledTime ? new Date(params.scheduledTime).toISOString().replace('T', ' ').slice(0, 19) : null,
          location: params.location || '重庆市',
          return_screenshot: true,
        }),
        signal: AbortSignal.timeout(600000),
      });

      const result = await response.json();
      logger.info('[Weixin Python] Response:', { ...result, screenshot_base64: result.screenshot_base64 ? '[截图已省略]' : undefined });

      // 使用通用的 AI 辅助处理方法
      return await this.aiProcessPythonPublishResult(result, undefined, onProgress);
    } catch (error) {
      logger.error('[Weixin Python] Publish failed:', error);
      throw error;
    }
  }
  
  async publishVideo(
    cookies: string,
    params: PublishParams,
    onProgress?: (progress: number, message: string) => void,
    onCaptchaRequired?: (captchaInfo: { taskId: string; type: 'sms' | 'image'; phone?: string; imageBase64?: string }) => Promise<string>,
    options?: { headless?: boolean }
  ): Promise<PublishResult> {
    // 优先尝试使用 Python 服务
    const pythonAvailable = await this.checkPythonServiceAvailable();
    if (pythonAvailable) {
      logger.info('[Weixin] Python service available, using Python method');
      try {
        return await this.publishVideoViaPython(cookies, params, onProgress);
      } catch (pythonError) {
        logger.warn('[Weixin] Python publish failed, falling back to Playwright:', pythonError);
        onProgress?.(0, 'Python 服务发布失败，正在切换到浏览器模式...');
      }
    } else {
      logger.info('[Weixin] Python service not available, using Playwright method');
    }

    // 回退到 Playwright 方式
    const useHeadless = options?.headless ?? true;

    try {
      await this.initBrowser({ headless: useHeadless });
      await this.setCookies(cookies);

      if (!this.page) throw new Error('Page not initialized');

      onProgress?.(5, '正在打开上传页面...');

      await this.page.goto(this.publishUrl, {
        waitUntil: 'domcontentloaded',
        timeout: 60000,
      });

      await this.page.waitForTimeout(3000);

      // 检查是否需要登录
      const currentUrl = this.page.url();
      if (currentUrl.includes('login')) {
        await this.closeBrowser();
        return {
          success: false,
          errorMessage: '账号登录已过期，请重新登录',
        };
      }

      onProgress?.(10, '正在上传视频...');

      // 上传视频
      let uploadTriggered = false;
      const uploadDiv = this.page.locator('div.upload-content, [class*="upload-area"]').first();
      if (await uploadDiv.count() > 0) {
        try {
          const [fileChooser] = await Promise.all([
            this.page.waitForEvent('filechooser', { timeout: 10000 }),
            uploadDiv.click(),
          ]);
          await fileChooser.setFiles(params.videoPath);
          uploadTriggered = true;
        } catch {
          logger.warn('[Weixin Publish] File chooser method failed');
        }
      }

      // 备用方法：直接设置 file input
      if (!uploadTriggered) {
        const fileInput = await this.page.$('input[type="file"]');
        if (fileInput) {
          await fileInput.setInputFiles(params.videoPath);
          uploadTriggered = true;
        }
      }

      if (!uploadTriggered) {
        throw new Error('未找到上传入口');
      }

      onProgress?.(20, '视频上传中...');

      // 等待上传完成
      const maxWaitTime = 300000; // 5分钟
      const startTime = Date.now();

      while (Date.now() - startTime < maxWaitTime) {
        // 检查发布按钮是否可用
        try {
          const buttonClass = await this.page.getByRole('button', { name: '发表' }).getAttribute('class');
          if (buttonClass && !buttonClass.includes('disabled')) {
            logger.info('[Weixin Publish] Upload completed, publish button enabled');
            break;
          }
        } catch {
          // 继续等待
        }

        // 检查上传进度
        const progressText = await this.page.locator('[class*="progress"]').first().textContent().catch(() => '');
        if (progressText) {
          const match = progressText.match(/(\d+)%/);
          if (match) {
            const progress = parseInt(match[1]);
            onProgress?.(20 + Math.floor(progress * 0.4), `视频上传中: ${progress}%`);
          }
        }

        await this.page.waitForTimeout(3000);
      }

      onProgress?.(60, '正在填写视频信息...');

      // 填写标题和话题
      const editorDiv = this.page.locator('div.input-editor, [contenteditable="true"]').first();
      if (await editorDiv.count() > 0) {
        await editorDiv.click();
        await this.page.keyboard.type(params.title);

        if (params.tags && params.tags.length > 0) {
          await this.page.keyboard.press('Enter');
          for (const tag of params.tags) {
            await this.page.keyboard.type('#' + tag);
            await this.page.keyboard.press('Space');
          }
        }
      }

      onProgress?.(80, '正在发布...');

      // 点击发布
      const publishBtn = this.page.locator('div.form-btns button:has-text("发表"), button:has-text("发表")').first();
      if (await publishBtn.count() > 0) {
        await publishBtn.click();
      } else {
        throw new Error('未找到发布按钮');
      }

      // 等待发布结果
      onProgress?.(90, '等待发布完成...');
      const publishMaxWait = 120000; // 2分钟
      const publishStartTime = Date.now();
      let aiCheckCounter = 0;

      while (Date.now() - publishStartTime < publishMaxWait) {
        await this.page.waitForTimeout(3000);
        const newUrl = this.page.url();

        // 检查是否跳转到列表页
        if (newUrl.includes('/post/list')) {
          onProgress?.(100, '发布成功！');
          await this.closeBrowser();
          return {
            success: true,
            videoUrl: newUrl,
          };
        }

        // 检查错误提示
        const errorHint = await this.page.locator('[class*="error"], [class*="fail"]').first().textContent().catch(() => '');
        if (errorHint && (errorHint.includes('失败') || errorHint.includes('错误'))) {
          throw new Error(`发布失败: ${errorHint}`);
        }

        // AI 辅助检测（每 3 次循环）
        aiCheckCounter++;
        if (aiCheckCounter >= 3) {
          aiCheckCounter = 0;
          const aiStatus = await this.aiAnalyzePublishStatus();
          if (aiStatus) {
            logger.info(`[Weixin Publish] AI status: ${aiStatus.status}, confidence: ${aiStatus.confidence}%`);

            if (aiStatus.status === 'success' && aiStatus.confidence >= 70) {
              onProgress?.(100, '发布成功！');
              await this.closeBrowser();
              return { success: true, videoUrl: this.page.url() };
            }

            if (aiStatus.status === 'failed' && aiStatus.confidence >= 70) {
              throw new Error(aiStatus.errorMessage || 'AI 检测到发布失败');
            }

            if (aiStatus.status === 'need_captcha' && onCaptchaRequired) {
              const imageBase64 = await this.screenshotBase64();
              try {
                const captchaCode = await onCaptchaRequired({
                  taskId: `weixin_captcha_${Date.now()}`,
                  type: 'image',
                  imageBase64,
                });
                if (captchaCode) {
                  const guide = await this.aiGetPublishOperationGuide('需要输入验证码');
                  if (guide?.hasAction && guide.targetSelector) {
                    await this.page.fill(guide.targetSelector, captchaCode);
                  }
                }
              } catch {
                logger.error('[Weixin Publish] Captcha handling failed');
              }
            }

            if (aiStatus.status === 'need_action' && aiStatus.nextAction) {
              const guide = await this.aiGetPublishOperationGuide(aiStatus.pageDescription);
              if (guide?.hasAction) {
                await this.aiExecuteOperation(guide);
              }
            }
          }
        }
      }

      // 超时，AI 最终检查
      const finalAiStatus = await this.aiAnalyzePublishStatus();
      if (finalAiStatus?.status === 'success') {
        onProgress?.(100, '发布成功！');
        await this.closeBrowser();
        return { success: true, videoUrl: this.page.url() };
      }

      throw new Error('发布超时，请手动检查是否发布成功');

    } catch (error) {
      logger.error('Weixin publishVideo error:', error);
      await this.closeBrowser();
      return {
        success: false,
        errorMessage: error instanceof Error ? error.message : '发布失败',
      };
    }
  }
  
  /**
   * 通过 Python API 获取评论
   */
  private async getCommentsViaPython(cookies: string, videoId: string): Promise<CommentData[]> {
    logger.info('[Weixin] Getting comments via Python API...');
    
    const response = await fetch(`${PYTHON_PUBLISH_SERVICE_URL}/comments`, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        platform: 'weixin',
        cookie: cookies,
        work_id: videoId,
      }),
    });
    
    if (!response.ok) {
      throw new Error(`Python API returned ${response.status}`);
    }
    
    const result = await response.json();
    
    if (!result.success) {
      throw new Error(result.error || 'Failed to get comments');
    }
    
    // 转换数据格式
    return (result.comments || []).map((comment: {
      comment_id: string;
      author_id: string;
      author_name: string;
      author_avatar: string;
      content: string;
      like_count: number;
      create_time: string;
      reply_count: number;
    }) => ({
      commentId: comment.comment_id,
      authorId: comment.author_id,
      authorName: comment.author_name,
      authorAvatar: comment.author_avatar,
      content: comment.content,
      likeCount: comment.like_count,
      commentTime: comment.create_time,
      replyCount: comment.reply_count,
    }));
  }

  async getComments(cookies: string, videoId: string): Promise<CommentData[]> {
    // 优先尝试使用 Python API
    const pythonAvailable = await this.checkPythonServiceAvailable();
    if (pythonAvailable) {
      logger.info('[Weixin] Python service available, using Python API for comments');
      try {
        return await this.getCommentsViaPython(cookies, videoId);
      } catch (pythonError) {
        logger.warn('[Weixin] Python API getComments failed:', pythonError);
      }
    }
    
    logger.warn('Weixin getComments - Python API not available');
    return [];
  }
  
  async replyComment(cookies: string, videoId: string, commentId: string, content: string): Promise<boolean> {
    logger.warn('Weixin replyComment not implemented');
    return false;
  }
  
  async getAnalytics(cookies: string, dateRange?: DateRange): Promise<AnalyticsData> {
    logger.warn('Weixin getAnalytics not implemented');
    return {
      totalViews: 0,
      totalLikes: 0,
      totalComments: 0,
      totalShares: 0,
      periodViews: [],
    };
  }
}