/**
 * CourseDetailPage - 课程详情页 Page Object
 * 对应页面: pages/course-detail/course-detail
 */
class CourseDetailPage {
  constructor(miniProgram) {
    this.mp = miniProgram;
  }

  /**
   * 等待课程详情页加载完成
   */
  async waitForLoad() {
    const { waitForPage } = require('../helpers/automator');
    return waitForPage(this.mp, 'pages/course-detail/course-detail');
  }

  /**
   * 获取课程名称
   * @returns {Promise<string>}
   */
  async getCourseName() {
    const page = await this.mp.currentPage();
    try {
      const nameEl = await page.$('.course-name');
      if (nameEl) {
        return await nameEl.text();
      }
    } catch (e) {
      console.warn('[CourseDetailPage] 获取课程名称异常:', e.message);
    }
    return '';
  }

  /**
   * 获取教练名称
   * @returns {Promise<string>}
   */
  async getCoachName() {
    const page = await this.mp.currentPage();
    try {
      const coachEl = await page.$('.coach-name');
      if (coachEl) {
        return await coachEl.text();
      }
    } catch (e) {
      console.warn('[CourseDetailPage] 获取教练名称异常:', e.message);
    }
    return '';
  }

  /**
   * 获取课程详情信息
   * @returns {Promise<Object>}
   */
  async getCourseInfo() {
    const page = await this.mp.currentPage();
    const info = {
      name: '',
      coach: '',
      time: '',
      location: ''
    };

    try {
      info.name = await this.getCourseName();
      info.coach = await this.getCoachName();

      const timeEl = await page.$('.course-time');
      if (timeEl) {
        info.time = await timeEl.text();
      }

      const locationEl = await page.$('.course-location');
      if (locationEl) {
        info.location = await locationEl.text();
      }
    } catch (e) {
      console.warn('[CourseDetailPage] 获取课程信息异常:', e.message);
    }

    return info;
  }

  /**
   * 点击预约按钮
   * @returns {Promise<boolean>} 是否点击成功
   */
  async bookCourse() {
    const page = await this.mp.currentPage();
    console.log('[CourseDetailPage] 点击预约按钮');

    try {
      const bookBtn = await page.$('.book-btn');
      if (bookBtn) {
        await bookBtn.tap();
        await this.mp.waitFor(2000);
        return true;
      }

      // 尝试其他可能的按钮选择器
      const confirmBtn = await page.$('.confirm-btn');
      if (confirmBtn) {
        await confirmBtn.tap();
        await this.mp.waitFor(2000);
        return true;
      }
    } catch (e) {
      console.warn('[CourseDetailPage] 预约按钮点击异常:', e.message);
    }

    return false;
  }

  /**
   * 验证预约成功提示
   * @returns {Promise<boolean>}
   */
  async verifyBookingSuccess() {
    console.log('[CourseDetailPage] 验证预约成功...');
    await this.mp.waitFor(1000);

    const page = await this.mp.currentPage();
    try {
      // 检查 toast 提示
      const toast = await page.$('.uni-toast');
      if (toast) {
        const toastText = await toast.text();
        console.log(`[CourseDetailPage] Toast 内容: "${toastText}"`);
        return toastText.includes('成功') || toastText.includes('预约');
      }
    } catch (e) {
      console.warn('[CourseDetailPage] 验证 toast 异常:', e.message);
    }

    // 如果页面跳转到"我的课程"，也视为成功
    try {
      const currentPage = await this.mp.currentPage();
      if (currentPage.path && currentPage.path.includes('my-courses')) {
        return true;
      }
    } catch (e) {
      // ignore
    }

    return false;
  }

  /**
   * 返回上一页
   */
  async goBack() {
    try {
      await this.mp.navigateBack();
      await this.mp.waitFor(1000);
    } catch (e) {
      console.warn('[CourseDetailPage] 返回异常:', e.message);
    }
  }
}

module.exports = CourseDetailPage;