// pages/kecheng/kecheng.js
const api = require('../../utils/api');
const store = require('../../utils/store');
const config = require('../../config/index');

const app = getApp();

Page({
  data: {
    staticBase: config.STATIC_BASE_URL,
    hasCourse: false,
    ownedCourses: [],
    tipsHtml: '',
    /** 账号被封禁：不显示已购权益，改为显示提示。文字全部来自后台配置 */
    blocked: false,
    blockedTitle: '',
    blockedDesc: '',
  },

  onLoad() {
    // 旧版本用 10ms 轮询最多 5 秒等登录数据，这里改为等初始化完成
    app.ready().then(() => this.refresh());
  },

  onShow() {
    if (store.isLoggedIn()) this.refresh();
    // 未登录（含刚退出登录）不能留着一份别人的课程列表
    else this.setData({ ownedCourses: [], hasCourse: false });
  },

  refresh() {
    this.loadTips();

    api
      .getEntitlements()
      .then((list) => {
        store.setEntitlements(list);
        this.setData({ ownedCourses: list || [], hasCourse: (list || []).length > 0, blocked: false });
      })
      .catch((err) => {
        if (err && err.code === api.ACCOUNT_DISABLED) {
          // 服务端不返回权益了，本地缓存也一并清掉，免得露出上一次的课程
          store.setEntitlements([]);
          this.setData({
            ownedCourses: [],
            hasCourse: false,
            blocked: true,
            blockedTitle: store.cfg('account.blocked_title'),
            blockedDesc: store.cfg('account.blocked_desc'),
          });
          return;
        }
        console.warn('[kecheng] 已购课程加载失败', err);
      });
  },

  loadTips() {
    if (this.data.tipsHtml) return;
    api
      .getTips()
      .then((tip) => this.setData({ tipsHtml: (tip && tip.content) || ' ' }))
      .catch((err) => console.warn('[kecheng] 文案加载失败', err));
  },

  toMyCourse(e) {
    wx.navigateTo({
      url: '/pages/VideoDetails/VideoDetails?code=' + e.currentTarget.dataset.code,
    });
  },

  onShareAppMessage() {
    return { title: '叶雷讲数学', path: '/pages/index/index' };
  },
});