/**
 * 我的课程页 Page Object
 */
class MyCoursesPage {
  constructor(miniProgram) {
    this.mp = miniProgram;
  }

  async waitForReady() {
    const page = await this.mp.currentPage();
    await page.waitFor(2000);
    console.log('我的课程页加载完成');
  }

  async getPath() {
    const page = await this.mp.currentPage();
    return page.path;
  }

  /**
   * 点击取消预约按钮
   */
  async clickCancelBooking(index = 0) {
    const page = await this.mp.currentPage();
    const cancelBtns = await page.$$('.cancel-btn');
    if (cancelBtns.length > index) {
      await cancelBtns[index].tap();
      console.log(`取消第${index + 1}个预约`);
    }
  }

  /**
   * 扫码签到：mock wx.scanCode 后点击签到按钮
   * @param {string} courseName 课程名称（如"流瑜伽"）- 用于匹配对应 booking card
   */
  async scanSignIn(courseName) {
    const page = await this.mp.currentPage();

    // 先通过 page data 确认目标课程存在
    const pageData = await page.data();
    const bookings = pageData.bookings || [];
    const targetBooking = bookings.find(b => b.courseName === courseName);
    if (!targetBooking) {
      console.log(`未在数据中找到「${courseName}」的预约记录`);
      return false;
    }
    const targetIndex = bookings.indexOf(targetBooking);
    console.log(`「${courseName}」在 bookings[${targetIndex}]`);

    // 通过 DOM 元素匹配
    const cards = await page.$$('.booking-card');
    console.log(`找到 ${cards.length} 个预约卡片`);

    if (cards.length > targetIndex) {
      const signBtn = await cards[targetIndex].$('.signin-btn');
      if (signBtn) {
        await signBtn.tap();
        console.log(`点击「${courseName}」扫码签到按钮`);
        return true;
      }
      console.log('未找到 signin-btn，尝试 wxml 匹配');

      // 回退：通过 wxml 匹配
      for (let i = 0; i < cards.length; i++) {
        const wxml = await cards[i].wxml();
        if (wxml.includes(courseName)) {
          const btn = await cards[i].$('.signin-btn');
          if (btn) {
            await btn.tap();
            console.log('点击扫码签到按钮');
            return true;
          }
        }
      }
    }
    console.log(`未找到「${courseName}」的签到按钮`);
    return false;
  }

  async containsText(text) {
    const page = await this.mp.currentPage();
    const wxml = await page.wxml();
    return wxml.includes(text);
  }

  async getPageData() {
    const page = await this.mp.currentPage();
    return await page.data();
  }
}

module.exports = { MyCoursesPage };