import { AppDataSource, PublishTask, PublishResult, PlatformAccount, SystemConfig } from '../models/index.js';
import { AppError } from '../middleware/error.js';
import { ERROR_CODES, HTTP_STATUS, WS_EVENTS } from '@media-manager/shared';
import type {
  PublishTask as PublishTaskType,
  PublishTaskDetail,
  CreatePublishTaskRequest,
  PaginatedData,
  PlatformType,
  PublishProxyConfig,
} from '@media-manager/shared';
import { wsManager } from '../websocket/index.js';
import { DouyinAdapter } from '../automation/platforms/douyin.js';
import { XiaohongshuAdapter } from '../automation/platforms/xiaohongshu.js';
import { WeixinAdapter } from '../automation/platforms/weixin.js';
import { BaijiahaoAdapter } from '../automation/platforms/baijiahao.js';
import { BasePlatformAdapter } from '../automation/platforms/base.js';
import { logger } from '../utils/logger.js';
import path from 'path';
import { config } from '../config/index.js';
import { CookieManager } from '../automation/cookie.js';
import { taskQueueService } from './TaskQueueService.js';
import { In } from 'typeorm';

interface GetTasksParams {
  page: number;
  pageSize: number;
  status?: string;
}

const HEADFUL_RETRY_TIMEOUT_MS = 30 * 60 * 1000;

export class PublishService {
  private taskRepository = AppDataSource.getRepository(PublishTask);
  private resultRepository = AppDataSource.getRepository(PublishResult);
  private accountRepository = AppDataSource.getRepository(PlatformAccount);
  private systemConfigRepository = AppDataSource.getRepository(SystemConfig);

  // 平台适配器工厂映射：每次发布独立创建，避免并发任务共享同一个 browser/page 状态
  private adapterFactories: Map<PlatformType, () => BasePlatformAdapter> = new Map();

  constructor() {
    // 初始化平台适配器
    this.adapterFactories.set('douyin', () => new DouyinAdapter());
    this.adapterFactories.set('xiaohongshu', () => new XiaohongshuAdapter());
    this.adapterFactories.set('weixin_video', () => new WeixinAdapter() as BasePlatformAdapter);
    this.adapterFactories.set('baijiahao', () => new BaijiahaoAdapter());
  }

  /**
   * 将技术性错误消息翻译为用户友好的描述
   */
  private friendlyErrorMessage(error: unknown): string {
    const raw = error instanceof Error ? error.message : String(error || '发布失败');

    const patterns: [RegExp, string][] = [
      [/CAPTCHA_REQUIRED[:：]?\s*(.*)/i, '需要验证码，请使用有头浏览器重新发布'],
      [/timeout/i, '操作超时，请稍后重试'],
      [/net::ERR_/i, '网络连接失败，请检查网络'],
      [/ECONNREFUSED|ECONNRESET/i, '网络连接被拒绝，请检查代理设置'],
      [/Navigation timeout/i, '页面加载超时，请稍后重试'],
      [/Target closed|browser closed/i, '浏览器已关闭，请重试'],
      [/automation.*not found|automation.*不可用/i, '本地自动化服务不可用，请联系管理员'],
      [/cookie.*过期|cookie.*失效|登录已过/i, '账号登录已过期，请重新登录'],
      [/请查看截图/i, '发布结果待确认，请前往平台创作者中心查看'],
      [/502|503|504|Bad Gateway|Service Unavailable/i, '平台服务器繁忙，请稍后重试'],
      [/upload.*fail|上传.*失败/i, '视频上传失败，请检查视频格式和大小'],
    ];

    for (const [pattern, message] of patterns) {
      if (pattern.test(raw)) return message;
    }

    if (/^[\u4e00-\u9fff]/.test(raw) && raw.length <= 50) return raw;
    return raw.length > 100 ? raw.slice(0, 100) + '...' : raw;
  }

  /**
   * 获取平台适配器
   */
  private getAdapter(platform: PlatformType) {
    const createAdapter = this.adapterFactories.get(platform);
    if (!createAdapter) {
      throw new AppError(`不支持的平台: ${platform}`, HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }
    return createAdapter();
  }

  private normalizeTargetAccountIds(targetAccounts: unknown): number[] {
    if (!Array.isArray(targetAccounts)) {
      return [];
    }

    const ids = targetAccounts
      .map((accountId) => Number(accountId))
      .filter((accountId) => Number.isInteger(accountId) && accountId > 0);

    return [...new Set(ids)];
  }

  private async getOwnedTargetAccountIds(
    userId: number,
    requestedAccountIds: number[]
  ): Promise<{ validAccountIds: number[]; invalidAccountIds: number[] }> {
    if (requestedAccountIds.length === 0) {
      return { validAccountIds: [], invalidAccountIds: [] };
    }

    const accounts = await this.accountRepository.find({
      where: { id: In(requestedAccountIds), userId },
      select: ['id'],
    });
    const ownedAccountIds = new Set(accounts.map((account) => account.id));

    return {
      validAccountIds: requestedAccountIds.filter((accountId) => ownedAccountIds.has(accountId)),
      invalidAccountIds: requestedAccountIds.filter((accountId) => !ownedAccountIds.has(accountId)),
    };
  }

  private resolvePublishText(task: PublishTask, platform: PlatformType): { title: string; description: string } {
    const taskTitle = String(task.title || '').trim();
    const taskDescription = task.description == null ? '' : String(task.description).trim();

    let title = taskTitle;
    let description = taskDescription;

    const platformConfig = Array.isArray(task.platformConfigs)
      ? task.platformConfigs.find((cfg: any) => String(cfg?.platform || '') === String(platform))
      : undefined;

    if (platformConfig) {
      const cfgTitle = typeof platformConfig.title === 'string' ? platformConfig.title.trim() : '';
      const hasCfgDescription = Object.prototype.hasOwnProperty.call(platformConfig, 'description');
      const cfgDescription = typeof platformConfig.description === 'string' ? platformConfig.description.trim() : '';

      if (cfgTitle) {
        title = cfgTitle;
      }

      if (hasCfgDescription) {
        description = cfgDescription;
      }
    }

    return { title, description };
  }

  async getTasks(userId: number, params: GetTasksParams): Promise<PaginatedData<PublishTaskType>> {
    const { page, pageSize, status } = params;
    const skip = (page - 1) * pageSize;

    const queryBuilder = this.taskRepository
      .createQueryBuilder('task')
      .where('task.userId = :userId', { userId });

    if (status) {
      queryBuilder.andWhere('task.status = :status', { status });
    }

    const [tasks, total] = await queryBuilder
      .orderBy('task.createdAt', 'DESC')
      .skip(skip)
      .take(pageSize)
      .getManyAndCount();

    // 批量查询每个任务的发布结果统计
    // 修复 #6068：同时查询实际目标账号 ID，删除账号后 targetAccounts 原始缓存不再准确
    let resultStatsMap: Record<number, { successCount: number; failCount: number; actualTargetAccounts: number[] }> = {};
    if (tasks.length > 0) {
      const taskIds = tasks.map(t => t.id);
      const stats = await this.resultRepository
        .createQueryBuilder('r')
        .select('r.taskId', 'taskId')
        .addSelect('COUNT(CASE WHEN r.status = :success THEN 1 END)', 'successCount')
        .addSelect('COUNT(CASE WHEN r.status = :failed THEN 1 END)', 'failCount')
        .addSelect('GROUP_CONCAT(DISTINCT r.account_id)', 'actualTargetAccountIds')
        .setParameter('success', 'success')
        .setParameter('failed', 'failed')
        .where('r.taskId IN (:...taskIds)', { taskIds })
        .groupBy('r.taskId')
        .getRawMany();
      for (const s of stats) {
        resultStatsMap[s.taskId] = {
          successCount: Number(s.successCount) || 0,
          failCount: Number(s.failCount) || 0,
          actualTargetAccounts: s.actualTargetAccountIds
            ? String(s.actualTargetAccountIds).split(',').map(Number).filter(Boolean)
            : [],
        };
      }
    }

    return {
      items: tasks.map(t => {
        const formatted = this.formatTask(t);
        const stats = resultStatsMap[t.id];
        if (stats) {
          formatted.successCount = stats.successCount;
          formatted.failCount = stats.failCount;
          // 修复 #6068：使用 PublishResult 中的实际账号 ID 覆盖原始缓存，删除账号后保持准确
          if (stats.actualTargetAccounts.length > 0) {
            formatted.targetAccounts = stats.actualTargetAccounts;
          }
        }
        return formatted;
      }),
      total,
      page,
      pageSize,
      totalPages: Math.ceil(total / pageSize),
    };
  }

  async getTaskById(userId: number, taskId: number): Promise<PublishTaskDetail> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
      relations: ['results'],
    });
    if (!task) {
      throw new AppError('任务不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }
    // 基于 PublishResult 记录重新计算任务状态（修复 #6068：删除账号后状态不一致）
    // 修复 Bug #6165：当 task.status 为 'processing' 时也参与状态聚合，否则已完成的任务会一直显示"发布中"
    const results = task.results || [];
    const actualTargetAccounts = results.map(r => r.accountId);
    const completedResults = results.filter(r => r.status === 'success');
    const failedResults = results.filter(r => r.status === 'failed');

    let computedStatus = task.status;
    if (results.length > 0 && task.status !== 'pending' && task.status !== 'cancelled') {
      // 只有当任务尚未开始（pending）或已取消时，才保持原始状态
      // 其他情况（processing 等）都根据 results 重新计算
      if (completedResults.length === results.length) {
        computedStatus = 'completed';
      } else if (failedResults.length === results.length) {
        computedStatus = 'failed';
      } else if (completedResults.length + failedResults.length === results.length) {
        computedStatus = 'failed'; // 部分失败也标记为 failed（保持向后兼容）
      } else {
        computedStatus = task.status; // 仍有未完成的，保持原状态
      }
    }

    return this.formatTaskDetail(task, actualTargetAccounts, computedStatus);
  }

  async createTask(userId: number, data: CreatePublishTaskRequest): Promise<PublishTaskType> {
    // 验证目标账号是否存在
    const requestedAccountIds = this.normalizeTargetAccountIds(data.targetAccounts);
    const { validAccountIds, invalidAccountIds } = await this.getOwnedTargetAccountIds(userId, requestedAccountIds);

    if (validAccountIds.length === 0) {
      throw new AppError('所选账号不存在或已被删除', HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }

    // 去重（修复#6034：作品数可能重复）
    const dedupAccountIds = validAccountIds;

    if (invalidAccountIds.length > 0) {
      logger.warn(`[PublishService] ${invalidAccountIds.length} invalid accounts skipped: ${invalidAccountIds.join(', ')}`);
    }

    const videoPath = data.videoPath || '';
    const task = this.taskRepository.create({
      userId,
      videoPath,
      videoFilename: videoPath ? videoPath.split(/[\\/]/).pop() || null : null,
      title: data.title,
      description: data.description || null,
      coverPath: data.coverPath || null,
      tags: data.tags || null,
      targetAccounts: dedupAccountIds, // 只保存有效且去重的账号 ID
      platformConfigs: data.platformConfigs || null,
      publishProxy: data.publishProxy || null,
      status: 'pending', // 初始状态为 pending，任务队列执行时再更新为 processing
      scheduledAt: data.scheduledAt ? new Date(data.scheduledAt) : null,
    });

    await this.taskRepository.save(task);

    // 创建发布结果记录（只为有效且去重的账号创建）
    const results = dedupAccountIds.map((accountId) => this.resultRepository.create({
      taskId: task.id,
      accountId,
    }));
    if (results.length > 0) {
      await this.resultRepository.save(results);
    }

    // 通知客户端
    wsManager.sendToUser(userId, WS_EVENTS.TASK_CREATED, { task: this.formatTask(task) });

    // 返回任务信息，发布任务将通过任务队列执行
    // 调用者需要调用 taskQueueService.createTask 来创建队列任务

    return this.formatTask(task);
  }

  async updateTask(
    userId: number,
    taskId: number,
    data: Partial<CreatePublishTaskRequest>,
  ): Promise<PublishTaskType> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
      relations: ['results'],
    });
    if (!task) {
      throw new AppError('任务不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }

    if (task.status === 'processing') {
      throw new AppError('正在执行的任务不能修改', HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }

    const requestedAccounts = Array.isArray(data.targetAccounts)
      ? data.targetAccounts
      : (Array.isArray(task.targetAccounts) ? task.targetAccounts : []);
    const requestedAccountIds = this.normalizeTargetAccountIds(requestedAccounts);
    const { validAccountIds, invalidAccountIds } = await this.getOwnedTargetAccountIds(userId, requestedAccountIds);

    if (validAccountIds.length === 0) {
      throw new AppError('所选账号不存在或已被删除', HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }

    const dedupAccountIds = validAccountIds;
    if (invalidAccountIds.length > 0) {
      logger.warn(`[PublishService] ${invalidAccountIds.length} invalid accounts skipped on update: ${invalidAccountIds.join(', ')}`);
    }

    const nextVideoPath = data.videoPath ?? task.videoPath ?? '';
    const nextTitle = data.title ?? task.title ?? '';

    task.videoPath = nextVideoPath;
    task.videoFilename = nextVideoPath ? nextVideoPath.split(/[\\/]/).pop() || null : null;
    task.title = nextTitle;
    task.description = data.description ?? task.description ?? null;
    task.coverPath = data.coverPath ?? task.coverPath ?? null;
    task.tags = data.tags ?? task.tags ?? null;
    task.targetAccounts = dedupAccountIds;
    task.platformConfigs = data.platformConfigs ?? task.platformConfigs ?? null;
    task.publishProxy = data.publishProxy ?? task.publishProxy ?? null;
    task.scheduledAt = data.scheduledAt ? new Date(data.scheduledAt) : null;
    task.status = 'pending';
    task.publishedAt = null;

    await this.taskRepository.save(task);

    await this.resultRepository.delete({ taskId });
    const results = dedupAccountIds.map((accountId) => this.resultRepository.create({ taskId: task.id, accountId }));
    if (results.length > 0) {
      await this.resultRepository.save(results);
    }

    wsManager.sendToUser(userId, WS_EVENTS.TASK_CREATED, { task: this.formatTask(task) });

    return this.formatTask(task);
  }

  /**
   * 带进度回调的发布任务执行
   */
  async executePublishTaskWithProgress(
    taskId: number,
    userId: number,
    onProgress?: (progress: number, message: string) => void
  ): Promise<void> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
      relations: ['results'],
    });

    if (!task) {
      throw new Error(`Task ${taskId} not found or does not belong to user ${userId}`);
    }

    // 更新任务状态为处理中
    await this.taskRepository.update(taskId, { status: 'processing' });
    wsManager.sendToUser(userId, WS_EVENTS.TASK_STATUS_CHANGED, {
      taskId,
      status: 'processing',
    });

    const results = task.results || [];
    // 筛选需要执行的发布结果：跳过已成功的（修复#6038重试把成功的也发了）
    const resultsToExecute = results.filter(r => r.status !== 'success');
    const skippedCount = results.length - resultsToExecute.length;
    if (skippedCount > 0) {
      logger.info(`Skipping ${skippedCount} already successful accounts`);
    }

    let successCount = 0;
    let failCount = 0;
    const executeCount = resultsToExecute.length;
    const successAccountIds = new Set<number>();

    let publishProxyExtra: Awaited<ReturnType<PublishService['buildPublishProxyExtra']>> = null;
    try {
      publishProxyExtra = await this.buildPublishProxyExtra(task.publishProxy);
    } catch (error) {
      const errorMessage = error instanceof Error ? error.message : '发布代理配置错误';
      logger.error(`[PublishService] publish proxy config error: ${errorMessage}`);

      for (const r of results) {
        await this.resultRepository.update(r.id, {
          status: 'failed',
          errorMessage,
        });
      }

      await this.taskRepository.update(taskId, {
        status: 'failed',
        publishedAt: new Date(),
      });

      wsManager.sendToUser(userId, WS_EVENTS.TASK_STATUS_CHANGED, {
        taskId,
        status: 'failed',
        successCount: 0,
        failCount: results.length,
      });

      onProgress?.(100, `发布失败: ${errorMessage}`);
      return;
    }

    // 构建视频文件的完整路径
    let videoPath = task.videoPath || '';

    // 处理各种路径格式
    if (videoPath) {
      // 如果路径以 /uploads/ 开头，提取相对路径部分
      if (videoPath.startsWith('/uploads/')) {
        videoPath = path.join(config.upload.path, videoPath.replace('/uploads/', ''));
      }
      // 如果是相对路径（不是绝对路径），拼接上传目录
      else if (!path.isAbsolute(videoPath)) {
        // 移除可能的重复 uploads 前缀
        videoPath = videoPath.replace(/^uploads[\\\/]+uploads[\\\/]+/, '');
        videoPath = videoPath.replace(/^uploads[\\\/]+/, '');
        videoPath = path.join(config.upload.path, videoPath);
      }
    }

    logger.info(`Publishing video: ${videoPath}`);
    onProgress?.(5, `准备发布到 ${executeCount} 个账号...`);

    // 遍历所有目标账号，逐个发布
    for (let i = 0; i < resultsToExecute.length; i++) {
      const result = resultsToExecute[i];
      const accountProgress = Math.floor((i / executeCount) * 80) + 10;

      try {
        // 获取账号信息
        const account = await this.accountRepository.findOne({
          where: { id: result.accountId, userId },
        });

        if (!account) {
          logger.warn(`Account ${result.accountId} not found`);
          await this.resultRepository.update(result.id, {
            status: 'failed',
            errorMessage: '账号不存在',
          });
          failCount++;
          continue;
        }

        if (!account.cookieData) {
          logger.warn(`Account ${result.accountId} has no cookies`);
          await this.resultRepository.update(result.id, {
            status: 'failed',
            errorMessage: '账号未登录',
          });
          failCount++;
          continue;
        }

        // 解密 Cookie
        let decryptedCookies: string;
        try {
          decryptedCookies = CookieManager.decrypt(account.cookieData);
        } catch {
          // 如果解密失败，可能是未加密的 Cookie
          decryptedCookies = account.cookieData;
        }

        // 更新发布结果的平台信息
        await this.resultRepository.update(result.id, {
          platform: account.platform,
        });

        // 获取适配器
        const adapter = this.getAdapter(account.platform as PlatformType);

        logger.info(`Publishing to account ${account.accountName} (${account.platform})`);
        onProgress?.(accountProgress, `正在发布到 ${account.accountName}...`);

        // 发送进度通知
        wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
          taskId,
          accountId: account.id,
          platform: account.platform,
          status: 'uploading',
          progress: 0,
          message: '开始发布...',
        });

        // 验证码处理回调（支持短信验证码和图形验证码）
        const onCaptchaRequired = async (captchaInfo: {
          taskId: string;
          type: 'sms' | 'image';
          phone?: string;
          imageBase64?: string;
        }): Promise<string> => {
          return new Promise((resolve, reject) => {
            const captchaTaskId = captchaInfo.taskId;

            // 发送验证码请求到前端
            const message = captchaInfo.type === 'sms'
              ? '请输入短信验证码'
              : '请输入图片中的验证码';

            logger.info(`[Publish] Requesting ${captchaInfo.type} captcha, taskId: ${captchaTaskId}, phone: ${captchaInfo.phone}`);
            wsManager.sendToUser(userId, WS_EVENTS.CAPTCHA_REQUIRED, {
              taskId,
              captchaTaskId,
              type: captchaInfo.type,
              phone: captchaInfo.phone || '',
              imageBase64: captchaInfo.imageBase64 || '',
              message,
            });

            // 设置超时（2分钟）
            const timeout = setTimeout(() => {
              wsManager.removeCaptchaListener(captchaTaskId);
              reject(new Error('验证码输入超时'));
            }, 120000);

            // 注册验证码监听
            wsManager.onCaptchaSubmit(captchaTaskId, (code: string) => {
              clearTimeout(timeout);
              wsManager.removeCaptchaListener(captchaTaskId);
              logger.info(`[Publish] Received captcha code for ${captchaTaskId}`);
              resolve(code);
            });
          });
        };

        // 执行发布
        const { title: resolvedTitle, description: resolvedDescription } = this.resolvePublishText(
          task,
          account.platform as PlatformType
        );

        if (!resolvedTitle) {
          await this.resultRepository.update(result.id, {
            status: 'failed',
            errorMessage: '发布标题为空，请在发布管理中填写标题后重试',
          });
          failCount++;
          continue;
        }

        const publishResult = await (adapter as any).publishVideo(
          decryptedCookies,
          {
            videoPath,
            title: resolvedTitle,
            description: resolvedDescription,
            coverPath: task.coverPath || undefined,
            tags: task.tags || undefined,
            extra: {
              userId,
              publishTaskId: taskId,
              publishAccountId: account.id,
              publishProxy: publishProxyExtra,
            },
          },
          (progress: number, message: string) => {
            // 发送进度更新
            wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
              taskId,
              accountId: account.id,
              platform: account.platform,
              status: 'processing',
              progress,
              message,
            });
          },
          onCaptchaRequired
        );

        if (publishResult.success) {
          await this.resultRepository.update(result.id, {
            status: 'success',
            videoUrl: publishResult.videoUrl || null,
            platformVideoId: publishResult.platformVideoId || null,
            publishedAt: new Date(),
          });
          successCount++;
          successAccountIds.add(account.id);

          wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
            taskId,
            accountId: account.id,
            platform: account.platform,
            status: 'success',
            progress: 100,
            message: '发布成功',
          });
        } else {
          await this.resultRepository.update(result.id, {
            status: 'failed',
            errorMessage: this.friendlyErrorMessage(publishResult.errorMessage),
          });
          failCount++;

          wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
            taskId,
            accountId: account.id,
            platform: account.platform,
            status: 'failed',
            progress: 0,
            message: publishResult.errorMessage || '发布失败',
          });
        }

        // 每个账号发布后等待一段时间，避免过于频繁
        await new Promise(resolve => setTimeout(resolve, 5000));

      } catch (error) {
        logger.error(`Failed to publish to account ${result.accountId}:`, error);
        const friendlyError = this.friendlyErrorMessage(error);
        await this.resultRepository.update(result.id, {
          status: 'failed',
          errorMessage: friendlyError,
        });
        failCount++;
      }
    }

    // 更新任务状态：
    // - 只要有一条失败，任务状态就是 failed
    // - 只有全部成功（failCount===0）才标记为 completed
    const finalStatus = failCount > 0 ? 'failed' : 'completed';
    await this.taskRepository.update(taskId, {
      status: finalStatus,
      publishedAt: new Date(),
    });

    wsManager.sendToUser(userId, WS_EVENTS.TASK_STATUS_CHANGED, {
      taskId,
      status: finalStatus,
      successCount,
      failCount,
    });

    onProgress?.(100, `发布完成: ${successCount} 成功, ${failCount} 失败`);
    logger.info(`Task ${taskId} completed: ${successCount} success, ${failCount} failed`);

    // 发布成功后，自动创建同步作品任务
    if (successCount > 0) {
      // 为每个成功的账号创建同步任务
      for (const accountId of successAccountIds) {
        const account = await this.accountRepository.findOne({ where: { id: accountId, userId } });
        if (account) {
          await taskQueueService.createTask(userId, {
            type: 'sync_works',
            title: `同步作品 - ${account.accountName || '账号'}`,
            accountId: account.id,
          });
          logger.info(`Created sync_works task for account ${accountId} after publish`);
        }
      }
    }
  }

  async cancelTask(userId: number, taskId: number): Promise<void> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
    });
    if (!task) {
      throw new AppError('任务不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }
    if (!['pending', 'processing'].includes(task.status)) {
      throw new AppError('该任务状态不可取消', HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }

    await this.taskRepository.update(taskId, { status: 'cancelled' });

    wsManager.sendToUser(userId, WS_EVENTS.TASK_STATUS_CHANGED, {
      taskId,
      status: 'cancelled',
    });
  }

  /**
   * 将发布任务状态更新为 failed（用于任务执行器异常时调用）
   * 修复 Bug #6143：避免 publish_task 表状态停留在 'processing'
   */
  async updateTaskStatusToFailed(taskId: number, userId: number): Promise<void> {
    await this.taskRepository.update(taskId, { status: 'failed' });
    wsManager.sendToUser(userId, WS_EVENTS.TASK_STATUS_CHANGED, {
      taskId,
      status: 'failed',
    });
  }

  async retryTask(userId: number, taskId: number): Promise<PublishTaskType> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
    });
    if (!task) {
      throw new AppError('任务不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }
    // 允许重试失败或卡住（processing）的任务
    if (!['failed', 'processing'].includes(task.status)) {
      throw new AppError('只能重试失败或卡住的任务', HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }

    await this.taskRepository.update(taskId, { status: 'pending' });

    // 重置失败的发布结果
    await this.resultRepository.update(
      { taskId, status: 'failed' },
      { status: null, errorMessage: null }
    );

    const updated = await this.taskRepository.findOne({ where: { id: taskId, userId } });

    wsManager.sendToUser(userId, WS_EVENTS.TASK_STATUS_CHANGED, {
      taskId,
      status: 'processing',
    });

    // 返回任务信息，调用者需要通过任务队列重新执行
    return this.formatTask(updated!);
  }

  /**
   * 单账号有头浏览器重试发布（用于验证码场景）
   * 调用 Node ????? 以有头浏览器模式执行发布
   */
  async retryAccountWithHeadfulBrowser(
    userId: number,
    taskId: number,
    accountId: number
  ): Promise<{ success: boolean; message: string; error?: string }> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
      relations: ['results'],
    });
    if (!task) {
      throw new AppError('Task not found', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }

    const account = await this.accountRepository.findOne({
      where: { id: accountId, userId },
    });
    if (!account) {
      throw new AppError('Account not found', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }

    const publishResult = task.results?.find(r => r.accountId === accountId);
    if (!publishResult) {
      throw new AppError('Publish result not found', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }

    let decryptedCookies: string;
    try {
      decryptedCookies = CookieManager.decrypt(account.cookieData || '');
    } catch {
      decryptedCookies = account.cookieData || '';
    }

    let videoPath = task.videoPath || '';
    if (videoPath) {
      if (videoPath.startsWith('/uploads/')) {
        videoPath = path.join(config.upload.path, videoPath.replace('/uploads/', ''));
      } else if (!path.isAbsolute(videoPath)) {
        videoPath = videoPath.replace(/^uploads[\/]+uploads[\/]+/, '');
        videoPath = videoPath.replace(/^uploads[\/]+/, '');
        videoPath = path.join(config.upload.path, videoPath);
      }
    }

    const publishProxyExtra = await this.buildPublishProxyExtra(task.publishProxy);
    const adapter = this.getAdapter(account.platform as PlatformType);

    logger.info(`[Headful Publish] Starting headful browser publish for account ${account.accountName} (${account.platform})`);

    await this.resultRepository.update(publishResult.id, {
      status: null,
      errorMessage: null,
    });

    wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
      taskId,
      accountId: account.id,
      platform: account.platform,
      status: 'processing',
      progress: 10,
      message: 'Starting visible browser publish...',
    });

    try {
      const absoluteVideoPath = path.isAbsolute(videoPath)
        ? videoPath
        : path.resolve(process.cwd(), videoPath);

      const { title: resolvedTitle, description: resolvedDescription } = this.resolvePublishText(
        task,
        account.platform as PlatformType
      );

      if (!resolvedTitle) {
        throw new Error('Publish title is empty');
      }

      const result = await (adapter as any).publishVideo(
        decryptedCookies,
        {
          videoPath: absoluteVideoPath,
          title: resolvedTitle,
          description: resolvedDescription,
          coverPath: task.coverPath ? path.resolve(process.cwd(), task.coverPath) : undefined,
          tags: task.tags || [],
          extra: {
            userId,
            publishTaskId: taskId,
            publishAccountId: accountId,
            publishProxy: publishProxyExtra,
          },
        },
        (progress: number, message: string) => {
          wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
            taskId,
            accountId: account.id,
            platform: account.platform,
            status: 'processing',
            progress,
            message,
          });
        },
        undefined,
        { headless: false }
      );

      if (result.success) {
        await this.resultRepository.update(publishResult.id, {
          status: 'success',
          videoUrl: result.videoUrl || null,
          platformVideoId: result.platformVideoId || null,
          publishedAt: new Date(),
          errorMessage: null,
        });

        wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
          taskId,
          accountId: account.id,
          platform: account.platform,
          status: 'success',
          progress: 100,
          message: 'Publish completed',
        });

        logger.info(`[Headful Publish] Success for account ${account.accountName}`);
        return { success: true, message: 'Publish completed' };
      }

      const errorMsg = result.errorMessage || 'Publish failed';
      await this.resultRepository.update(publishResult.id, {
        status: 'failed',
        errorMessage: errorMsg,
      });

      wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
        taskId,
        accountId: account.id,
        platform: account.platform,
        status: 'failed',
        progress: 0,
        message: errorMsg,
      });

      logger.warn(`[Headful Publish] Failed for account ${account.accountName}: ${errorMsg}`);
      return { success: false, message: 'Publish failed', error: errorMsg };
    } catch (error) {
      const errorMsg =
        error instanceof Error && error.name === 'TimeoutError'
          ? 'Visible browser publish timed out'
          : error instanceof Error
            ? error.message
            : 'Publish failed';
      await this.resultRepository.update(publishResult.id, {
        status: 'failed',
        errorMessage: errorMsg,
      });

      wsManager.sendToUser(userId, WS_EVENTS.PUBLISH_PROGRESS, {
        taskId,
        accountId: account.id,
        platform: account.platform,
        status: 'failed',
        progress: 0,
        message: errorMsg,
      });

      logger.error(`[Headful Publish] Error for account ${account.accountName}:`, error);
      return { success: false, message: 'Publish failed', error: errorMsg };
    }
  }

  async deleteTask(userId: number, taskId: number): Promise<void> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
    });
    if (!task) {
      throw new AppError('任务不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }

    // 不能删除正在执行的任务
    if (task.status === 'processing') {
      throw new AppError('不能删除正在执行的任务', HTTP_STATUS.BAD_REQUEST, ERROR_CODES.VALIDATION);
    }

    // 先删除关联的发布结果
    await this.resultRepository.delete({ taskId });

    // 再删除任务
    await this.taskRepository.delete(taskId);
  }

  private formatTask(task: PublishTask): PublishTaskType {
    return {
      id: task.id,
      userId: task.userId,
      videoPath: task.videoPath || '',
      videoFilename: task.videoFilename || '',
      title: task.title || '',
      description: task.description,
      coverPath: task.coverPath,
      tags: task.tags || [],
      targetAccounts: task.targetAccounts || [],
      platformConfigs: task.platformConfigs || [],
      publishProxy: task.publishProxy,
      status: task.status,
      scheduledAt: task.scheduledAt?.toISOString() || null,
      publishedAt: task.publishedAt?.toISOString() || null,
      createdAt: task.createdAt.toISOString(),
      updatedAt: task.updatedAt.toISOString(),
    };
  }

  private async buildPublishProxyExtra(publishProxy: PublishProxyConfig | null | undefined): Promise<null | {
    enabled: boolean;
    provider: 'shenlong';
    city: string;
    productKey: string;
    signature: string;
    regionCode?: string;
    regionName?: string;
  }> {
    if (!publishProxy?.enabled) return null;

    const provider = publishProxy.provider || 'shenlong';
    if (provider !== 'shenlong') return null;

    const rows = await this.systemConfigRepository.find({
      where: { configKey: 'publish_proxy_shenlong_product_key' },
    });
    const productKey = String(rows?.[0]?.configValue || '').trim();
    const signatureRows = await this.systemConfigRepository.find({
      where: { configKey: 'publish_proxy_shenlong_signature' },
    });
    const signature = String(signatureRows?.[0]?.configValue || '').trim();
    if (!productKey || !signature) return null;

    const rawRegionCode = publishProxy.regionCode ? String(publishProxy.regionCode).trim() : '';
    let regionCode: string | undefined = rawRegionCode || undefined;
    // 格式化地区编码：神龙 API 支持 6 位编码，省级(0000)、地级(00) 均保留传递
    if (regionCode && /^\d{6}$/.test(regionCode) && !regionCode.endsWith('00')) {
      regionCode = `${regionCode.slice(0, 4)}00`;
    }

    return {
      enabled: true,
      provider: 'shenlong',
      city: String(publishProxy.city || '').trim(),
      productKey,
      signature,
      regionCode,
      regionName: publishProxy.regionName ? String(publishProxy.regionName).trim() : undefined,
    };
  }

  /**
   * 用户手动确认发布结果（如小红书"发布结果待确认"时用户确认已发布成功）
   */
  async confirmPublishResult(userId: number, taskId: number, resultId: number): Promise<void> {
    const task = await this.taskRepository.findOne({
      where: { id: taskId, userId },
      relations: ['results'],
    });
    if (!task) {
      throw new AppError('任务不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }
    const result = task.results?.find(r => r.id === resultId);
    if (!result) {
      throw new AppError('发布结果不存在', HTTP_STATUS.NOT_FOUND, ERROR_CODES.NOT_FOUND);
    }
    await this.resultRepository.update(resultId, {
      status: 'success',
      errorMessage: null,
      publishedAt: new Date(),
    });
    // 检查是否所有结果都成功，如是则更新任务状态
    const updatedResults = await this.resultRepository.find({ where: { taskId } });
    const allSuccess = updatedResults.every(r => r.status === 'success');
    if (allSuccess) {
      await this.taskRepository.update(taskId, { status: 'completed', publishedAt: new Date() });
    }
  }

  private formatTaskDetail(
    task: PublishTask,
    overrideTargetAccounts?: number[],
    overrideStatus?: string,
  ): PublishTaskDetail {
    const base = this.formatTask(task);
    // 修复 #6068：使用实际存在的 PublishResult 账号列表覆盖缓存的 targetAccounts
    if (overrideTargetAccounts) {
      base.targetAccounts = overrideTargetAccounts;
    }
    if (overrideStatus) {
      base.status = overrideStatus as PublishTaskType['status'];
    }
    return {
      ...base,
      results: task.results?.map(r => ({
        id: r.id,
        taskId: r.taskId,
        accountId: r.accountId,
        platform: r.platform!,
        status: r.status!,
        videoUrl: r.videoUrl,
        platformVideoId: r.platformVideoId,
        errorMessage: r.errorMessage,
        publishedAt: r.publishedAt?.toISOString() || null,
      })) || [],
    };
  }
}