128 lines
3.6 KiB
JavaScript
128 lines
3.6 KiB
JavaScript
// pages/VideoDetails/VideoDetails.js
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const api = require('../../utils/api');
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const store = require('../../utils/store');
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const format = require('../../utils/format');
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const app = getApp();
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Page({
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data: {
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code: '',
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owned: false,
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loading: true,
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buyText: '',
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contactText: '',
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VideoTitle: '',
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VideoDetails: '',
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coverUrl: '',
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playdata: [],
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/** 列表上方的更新期数文案，整句来自后台配置 */
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updatedText: '',
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VideoPlayerSrc: '',
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HiddenVideoControl: true,
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top: 0,
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},
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onLoad(options) {
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const code = options.code;
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if (!code) {
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wx.switchTab({ url: '/pages/kecheng/kecheng' });
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return;
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}
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this.setData({ code: code });
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},
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/** 首次进入和从购买页返回都会走这里：买完回来要立刻变成已拥有。 */
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onShow() {
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app.ready().then(() => this.applyConfig());
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if (this.data.code) this.load(this.data.code);
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},
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/** 按钮文案取自后台配置，后台改完小程序下拉刷新即可生效。 */
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applyConfig() {
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this.setData({
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buyText: store.cfg('course.button.buy'),
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contactText: store.cfg('course.button.contact'),
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});
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},
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load(code) {
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api
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.getCourse(code)
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.then((course) => {
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this.setData({
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loading: false,
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owned: course.owned,
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VideoTitle: course.title || '',
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VideoDetails: course.intro || '',
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coverUrl: course.coverUrl || '',
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});
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if (course.owned) this.loadLessons(code);
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})
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.catch((err) => {
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this.setData({ loading: false });
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wx.showToast({ title: err.message || store.cfg('course.tip.loadFailed'), icon: 'none' });
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setTimeout(() => wx.switchTab({ url: '/pages/kecheng/kecheng' }), 1500);
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});
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},
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loadLessons(code) {
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api
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.getLessons(code)
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.then((list) => {
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const rows = (list || []).map((item) => ({
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chapterId: item.chapterId,
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playId: item.playId,
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chapterTitle: item.chapterTitle,
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lessonTitle: item.lessonTitle,
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duration: item.duration,
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publishedAt: format.toDateString(item.publishedAt),
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coverUrl: item.coverUrl,
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}));
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// 期数文案整句来自后台配置，{n} 在这里替换成实际条数
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this.setData({
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playdata: rows,
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updatedText: store.cfg('course.lesson.updated').replace('{n}', rows.length),
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});
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})
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.catch((err) => {
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this.setData({ playdata: [] });
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console.warn('[VideoDetails] 条目加载失败', err);
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});
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},
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/** 点条目：向后端换一次性地址，真实文件不直接暴露。 */
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onTapLesson(e) {
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const item = this.data.playdata[e.currentTarget.dataset.index];
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if (!item) return;
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wx.showLoading({ title: '加载中', mask: true });
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api
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.getPlayUrl(this.data.code, item.chapterId, item.playId)
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.then((res) => {
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wx.hideLoading();
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this.setData({ VideoPlayerSrc: res.url, HiddenVideoControl: false, top: 420 });
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})
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.catch((err) => {
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wx.hideLoading();
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wx.showToast({ title: err.message || store.cfg('course.tip.playFailed'), icon: 'none' });
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});
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},
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/** 购买入口：详情页不做交易，统一跳商业化页面。 */
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goBuy() {
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if (!this.data.code) return;
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// 已经拥有就不必再进购买页：原地提示一句
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if (this.data.owned) {
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wx.showToast({ title: store.cfg('course.tip.owned'), icon: 'none' });
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return;
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}
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wx.navigateTo({ url: '/pages/buy/buy?code=' + this.data.code });
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},
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onShareAppMessage() {
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return { title: store.cfg('share.title'), path: '/pages/index/index' };
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},
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});
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