// pages/IndexFreeCourseDetails/IndexFreeCourseDetails.js
const api = require('../../utils/api');
const format = require('../../utils/format');
const store = require('../../utils/store');

Page({
  data: {
    VideoTitle: '',
    playdata: [],
    VideoPlayerSrc: '',
    HiddenVideoControl: true,
    top: 0,
    /** 列表上方的更新期数文案，整句来自后台配置 */
    updatedText: '',
  },

  onLoad(options) {
    const seriesNo = options.seriesNo;
    if (!seriesNo) {
      wx.switchTab({ url: '/pages/index/index' });
      return;
    }

    api
      .getFreeLessons(Number(seriesNo))
      .then((list) => {
        const rows = (list || []).map((item) => ({
          coverUrl: item.coverUrl,
          videoTitle: item.videoTitle,
          intro: item.intro,
          publishedAt: format.toDateString(item.publishedAt),
          duration: item.duration,
          videoUrl: item.videoUrl,
        }));
        this.setData({
          playdata: rows,
          VideoTitle: rows.length ? rows[0].videoTitle || '' : '',
          updatedText: store.cfg('course.lesson.updated').replace('{n}', rows.length),
        });
      })
      .catch((err) => {
        console.error('[IndexFreeCourseDetails] 加载失败', err);
        this.setData({ playdata: [] });
      });
  },

  onTapLesson(e) {
    const item = this.data.playdata[e.currentTarget.dataset.index];
    if (!item || !item.videoUrl) {
      wx.showToast({ title: store.cfg('course.tip.lessonNoVideo'), icon: 'none' });
      return;
    }
    this.setData({ VideoPlayerSrc: item.videoUrl, HiddenVideoControl: false, top: 420 });
  },

  onShareAppMessage() {
    return { title: store.cfg('share.title'), path: '/pages/index/index' };
  },
});