const { sleep } = require('../helpers/automator');

class HomePage {
  /**
   * @param {object} miniProgram - miniprogram-automator 实例
   */
  constructor(miniProgram) {
    this.mp = miniProgram;
  }

  /**
   * 等待首页加载完成
   */
  async waitForLoad() {
    const page = await this.mp.currentPage();
    await page.waitFor('.greeting-card', { timeout: 10000 });
    await page.waitFor('.stats-card', { timeout: 5000 });
    return page;
  }

  /**
   * 获取当前登录的教练名字
   * @returns {Promise<string>}
   */
  async getCoachName() {
    const page = await this.mp.currentPage();
    try {
      const nameEl = await page.$('.coach-name');
      if (nameEl) {
        const text = await nameEl.text();
        return (text || '').replace(' 教练', '').trim();
      }
    } catch (e) {
      // 忽略
    }
    return null;
  }

  /**
   * 获取今日统计信息（待开课、进行中、已结束）
   * @returns {Promise<{pending: string, inProgress: string, ended: string}>}
   */
  async getTodayStats() {
    const page = await this.mp.currentPage();
    try {
      const statNumbers = await page.$$('.stat-number');
      const stats = {};
      if (statNumbers.length >= 3) {
        stats.pending = (await statNumbers[0].text()).trim();
        stats.inProgress = (await statNumbers[1].text()).trim();
        stats.ended = (await statNumbers[2].text()).trim();
      }
      return stats;
    } catch (e) {
      return { pending: '0', inProgress: '0', ended: '0' };
    }
  }

  /**
   * 导航到课程列表页
   */
  async navigateToCourseList() {
    const page = await this.mp.currentPage();
    // 点击"我的团课"入口卡片
    const entryCards = await page.$$('.entry-card');
    if (entryCards.length > 0) {
      await entryCards[0].tap();
    } else {
      // 备用：通过 URL 导航
      await this.mp.navigateTo('/pages/course-list/course-list');
    }
    await sleep(2000);
    return this.mp.currentPage();
  }

  /**
   * 导航到个人中心
   */
  async navigateToProfile() {
    const page = await this.mp.currentPage();
    const entryCards = await page.$$('.entry-card');
    if (entryCards.length >= 2) {
      await entryCards[1].tap();
    } else {
      await this.mp.navigateTo('/pages/profile/profile');
    }
    await sleep(2000);
    return this.mp.currentPage();
  }

  /**
   * 验证首页关键元素存在
   */
  async verifyPageElements() {
    const page = await this.mp.currentPage();
    const checks = {};

    try {
      checks.greetingCard = !!(await page.$('.greeting-card'));
    } catch (e) { checks.greetingCard = false; }

    try {
      checks.statsCard = !!(await page.$('.stats-card'));
    } catch (e) { checks.statsCard = false; }

    try {
      checks.navTitle = !!(await page.$('.nav-title'));
    } catch (e) { checks.navTitle = false; }

    return checks;
  }
}

module.exports = HomePage;