大修改

yelaymaths/pages/VideoDetails/VideoDetails.js

@@ -3,19 +3,18 @@ const api = require('../../utils/api');
 const store = require('../../utils/store');
 const format = require('../../utils/format');
 
-const POLL_INTERVAL = 1500;
-const POLL_MAX = 8;
+const app = getApp();
 
 Page({
   data: {
     code: '',
     owned: false,
     loading: true,
-    buying: false,
+    buyText: '',
+    contactText: '',
     VideoTitle: '',
     VideoDetails: '',
     coverUrl: '',
-    priceYuan: '',
     playdata: [],
     VideoPlayerSrc: '',
     HiddenVideoControl: true,
@@ -29,11 +28,20 @@ Page({
       return;
     }
     this.setData({ code: code });
-    this.load(code);
   },
 
+  /** 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。 */
   onShow() {
-    if (this.data.code && this.data.owned) this.load(this.data.code);
+    app.ready().then(() => this.applyConfig());
+    if (this.data.code) this.load(this.data.code);
+  },
+
+  /** 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。 */
+  applyConfig() {
+    this.setData({
+      buyText: store.cfg('course.button.buy'),
+      contactText: store.cfg('course.button.contact'),
+    });
   },
 
   load(code) {
@@ -46,7 +54,6 @@ Page({
           VideoTitle: course.title || '',
           VideoDetails: course.intro || '',
           coverUrl: course.coverUrl || '',
-          priceYuan: format.fenToYuan(course.priceFen),
         });
         if (course.owned) this.loadLessons(code);
       })
@@ -96,57 +103,10 @@ Page({
       });
   },
 
-  /** 购买：下单 → 拉起支付 → 轮询订单状态确认发货。 */
-  buyNow() {
-    if (this.data.buying) return;
-    if (typeof wx.requestVirtualPayment !== 'function') {
-      wx.showToast({ title: '当前微信版本不支持支付，请升级微信', icon: 'none' });
-      return;
-    }
-
-    this.setData({ buying: true });
-    wx.showLoading({ title: '发起支付', mask: true });
-
-    api
-      .createOrder(this.data.code)
-      .then((order) => {
-        wx.hideLoading();
-        return api.requestVirtualPayment(order.payData).then(() => order.outTradeNo);
-      })
-      .then((outTradeNo) => this.waitForDelivery(outTradeNo))
-      .catch((err) => {
-        wx.hideLoading();
-        this.setData({ buying: false });
-        // 用户主动取消不算错误
-        if (err && err.errMsg && err.errMsg.indexOf('cancel') >= 0) return;
-        wx.showToast({ title: (err && err.message) || '支付失败', icon: 'none' });
-      });
-  },
-
-  /**
-   * 支付成功后权益由服务端发货推送发放，存在秒级延迟，这里轮询确认。
-   * 即便轮询全部超时也不会丢单：服务端有定时查单兜底。
-   */
-  waitForDelivery(outTradeNo) {
-    let attempts = 0;
-    const poll = () => {
-      attempts += 1;
-      return api.getOrder(outTradeNo).then((order) => {
-        if (order.status === 2) {
-          this.setData({ buying: false, owned: true });
-          wx.showToast({ title: '购买成功', icon: 'success', mask: true });
-          this.load(this.data.code);
-          return;
-        }
-        if (attempts >= POLL_MAX || order.status === 3 || order.status === 4) {
-          this.setData({ buying: false });
-          wx.showToast({ title: '支付已提交，开通可能稍有延迟', icon: 'none', duration: 3000 });
-          return;
-        }
-        return new Promise((resolve) => setTimeout(resolve, POLL_INTERVAL)).then(poll);
-      });
-    };
-    return poll();
+  /** 购买入口：详情页不做交易，统一跳商业化页面。 */
+  goBuy() {
+    if (!this.data.code) return;
+    wx.navigateTo({ url: '/pages/buy/buy?code=' + this.data.code });
   },
 
   onShareAppMessage() {

yelaymaths/pages/VideoDetails/VideoDetails.wxml

@@ -27,7 +27,7 @@
   </scroll-view>
 </block>
 
-<!-- 未拥有：展示介绍与购买入口 -->
+<!-- 购买入口 -->
 <block wx:else>
   <scroll-view class="scrollarea" scroll-y type="list">
     <view class="jieshao">
@@ -41,11 +41,11 @@
 
     <view class="fixed-btn-wrapper">
       <view class="btn-group">
-        <button class="DianJiXiangQing1" bind:tap="buyNow" disabled="{{buying}}">
-          <text class="DianJiXiangQing2">{{buying ? '处理中…' : '立即购买 ¥' + priceYuan}}</text>
+        <button class="DianJiXiangQing1" bind:tap="goBuy">
+          <text class="DianJiXiangQing2">{{buyText}}</text>
         </button>
         <button class="DianJiXiangQing1" open-type="contact">
-          <text class="DianJiXiangQing2">咨询客服</text>
+          <text class="DianJiXiangQing2">{{contactText}}</text>
         </button>
       </view>
     </view>