文案配置化 + 支付开关

小程序
- 页面固定文案全部改读后台配置（购买、登录、资料、首页、分享、介绍页），代码里不再硬编码
- 已拥有课程时在当前页提示，不再跳购买页再提示
- 介绍页正文由代码常量改为读 settings.page.formula.content

服务端
- 课程相关报错文案（不存在 / 已下架 / 课时不存在 / 未购买 / 已过期 / 重复购买 / 未配置支付商品）改读配置，代码保留默认值兜底
- 新增支付总开关 pay.blocked：打开即拦截下单并下发配置里的提示；开关存在数据库里，开发库与生产库各一份（开发库已开，生产库未设）

后台
- 系统配置页按页面分组折叠，默认收起；认不出来的配置归入「其他」

配套数据（不在代码里）：对应的 settings 行已写入生产库与开发库

yelaymaths/pages/ChangeUserInfo/ChangeUserInfo.js

@@ -13,6 +13,11 @@ Page({
     username: '',
     HeadiconID: 0,
     list: 50,
+    // 表单上的固定文案，全部来自后台配置
+    labelName: '',
+    placeholderName: '',
+    labelAvatar: '',
+    textSubmit: '',
   },
 
   onLoad() {
@@ -29,6 +34,10 @@ Page({
       username: user.nickname || '',
       HeadiconID: user.headiconId || 0,
       list: parseInt(store.cfg('profile.headicon_count'), 10) || 0,
+      labelName: store.cfg('profile.form.name'),
+      placeholderName: store.cfg('profile.form.namePlaceholder'),
+      labelAvatar: store.cfg('profile.form.avatar'),
+      textSubmit: store.cfg('profile.form.submit'),
     });
   },
 
@@ -58,8 +67,8 @@ Page({
     }
 
     wx.showModal({
-      title: '提示',
-      content: '确定修改个人资料吗？',
+      title: store.cfg('common.dialog.title'),
+      content: store.cfg('profile.confirm.save'),
       confirmColor: '#ff0000',
       success: (res) => {
         if (!res.confirm) return;

yelaymaths/pages/ChangeUserInfo/ChangeUserInfo.wxml

@@ -1,15 +1,15 @@
 <van-cell-group>
   <van-field 
-    label="用户名"
+    label="{{labelName}}"
     value="{{username}}"
-    placeholder="请输入用户名"
+    placeholder="{{placeholderName}}"
     border="true"
     bind:change="onChange"
   />
 </van-cell-group>
 
 <van-collapse value="{{ activeNames }}" bind:change="onChange2">
-  <van-collapse-item title="头像" name="1">
+  <van-collapse-item title="{{labelAvatar}}" name="1">
     <view style="display: flex;  justify-content: center;  padding: 20rpx 0;">
       <van-image width="120rpx" height="120rpx" src="{{BaseURL}}/Images/Headicons/Headicon{{HeadiconID}}.png" />
     </view>
@@ -22,5 +22,5 @@
 </van-collapse>
 
 <view class="button-container" style="text-align: center;padding: 20rpx;">
-  <van-button type="primary" bind:click="onConfirm">确认修改</van-button>
-</view>
+  <van-button type="primary" bind:click="onConfirm">{{textSubmit}}</van-button>
+</view>

yelaymaths/pages/IndexFreeCourseDetails/IndexFreeCourseDetails.js

@@ -1,6 +1,7 @@
 // pages/IndexFreeCourseDetails/IndexFreeCourseDetails.js
 const api = require('../../utils/api');
 const format = require('../../utils/format');
+const store = require('../../utils/store');
 
 Page({
   data: {
@@ -9,6 +10,8 @@ Page({
     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) {
@@ -32,6 +35,7 @@ Page({
         this.setData({
           playdata: rows,
           VideoTitle: rows.length ? rows[0].videoTitle || '' : '',
+          updatedText: store.cfg('course.lesson.updated').replace('{n}', rows.length),
         });
       })
       .catch((err) => {
@@ -43,14 +47,14 @@ Page({
   onTapLesson(e) {
     const item = this.data.playdata[e.currentTarget.dataset.index];
     if (!item || !item.videoUrl) {
-      wx.showToast({ title: '该课时暂无视频', icon: 'none' });
+      wx.showToast({ title: store.cfg('course.tip.lessonNoVideo'), icon: 'none' });
       return;
     }
     this.setData({ VideoPlayerSrc: item.videoUrl, HiddenVideoControl: false, top: 420 });
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 });
 

yelaymaths/pages/IndexFreeCourseDetails/IndexFreeCourseDetails.wxml

@@ -2,7 +2,7 @@
 <scroll-view class="scrollarea" scroll-y type="list" style="top:{{top}}rpx;">
   <view class="jieshao">
     <text decode class="video_biaoti">&nbsp;&nbsp;{{VideoTitle}}</text>
-    <text decode class="video_info">&nbsp;&nbsp;已更新{{playdata.length}}期</text>
+    <text decode class="video_info">&nbsp;&nbsp;{{updatedText}}</text>
   </view>
 
   <view class="videolistcontainer" bind:tap="onTapLesson"

yelaymaths/pages/IndexNewCourseDetails/IndexNewCourseDetails.js

@@ -12,6 +12,8 @@ Page({
     priceYuan: '',
     buyText: '',
     contactText: '',
+    /** 是否已拥有这门课：已拥有时按钮就在本页提示，不再跳购买页 */
+    owned: false,
   },
 
   onLoad(options) {
@@ -28,12 +30,27 @@ Page({
           courseCode: item.courseCode || '',
           courseTitle: item.courseTitle || '',
         });
+        this.refreshOwned();
       })
       .catch((err) => console.error('[IndexNewCourseDetails] 加载失败', err));
   },
 
   onShow() {
-    app.ready().then(() => this.applyConfig());
+    app.ready().then(() => {
+      this.applyConfig();
+      // 买完回来要立刻变成「已拥有」，所以每次显示都重新问一次
+      this.refreshOwned();
+    });
+  },
+
+  /** 查这门课的拥有状态。拿不到就按未拥有处理，不影响正常购买。 */
+  refreshOwned() {
+    const code = this.data.courseCode;
+    if (!code) return;
+    api
+      .getCourse(code)
+      .then((course) => this.setData({ owned: !!course.owned }))
+      .catch((err) => console.warn('[IndexNewCourseDetails] 拥有状态加载失败', err));
   },
 
   /** 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。 */
@@ -47,6 +64,11 @@ Page({
   /** 购买统一走商业化页面。 */
   toBuy() {
     if (!this.data.courseCode) return;
+    // 已经拥有就不必再跳过去了：原地提示一句
+    if (this.data.owned) {
+      wx.showToast({ title: store.cfg('course.tip.owned'), icon: 'none' });
+      return;
+    }
     wx.navigateTo({ url: '/pages/buy/buy?code=' + this.data.courseCode });
   },
 });

yelaymaths/pages/LoginOrOutDetails/LoginOrOutDetails.js

@@ -17,7 +17,11 @@ Page({
   data: {
     userInfo: { avatarUrl: '', nickName: '' },
     loginStatue: false,
-    LoginTag: '一键登录',
+    LoginTag: '',
+    // 页面固定文案，全部来自后台配置
+    pageTitle: '',
+    pageSubtitle: '',
+    logoutText: '',
   },
 
   onLoad() {
@@ -34,7 +38,10 @@ Page({
     const registered = !!(user && user.isLogin === 1);
     this.setData({
       loginStatue: registered,
-      LoginTag: registered ? '退出登录' : '一键登录',
+      LoginTag: registered ? store.cfg('login.button.logout') : store.cfg('login.button.login'),
+      logoutText: store.cfg('login.button.logout'),
+      pageTitle: store.cfg('login.title'),
+      pageSubtitle: store.cfg('login.subtitle'),
       userInfo: {
         avatarUrl: config.STATIC_BASE_URL + config.PLACEHOLDER.WECHAT,
         nickName: registered ? user.nickname : '',
@@ -82,8 +89,8 @@ Page({
   onlogout() {
     if (!this.data.loginStatue) return;
     wx.showModal({
-      title: '提示',
-      content: '确定退出登录吗？',
+      title: store.cfg('common.dialog.title'),
+      content: store.cfg('login.confirm.logout'),
       confirmColor: '#ff0000',
       success: (res) => {
         if (!res.confirm) return;

yelaymaths/pages/LoginOrOutDetails/LoginOrOutDetails.wxml

@@ -4,10 +4,10 @@
   <image class="touxiang_img" src="{{userInfo.avatarUrl}}" mode="" />
 </view>
 <view class="imgview2">
-  <text class="imgtext2">叶雷讲数学</text>
+  <text class="imgtext2">{{pageTitle}}</text>
 </view>
 <view class="imgview3">
-  <text class="imgtext3">让数学不再难学</text>
+  <text class="imgtext3">{{pageSubtitle}}</text>
 </view>
 
 <view wx:if="{{!loginStatue}}" class="btn_wrapper">
@@ -17,9 +17,9 @@
 </view>
 <view wx:else="{{loginStatue}}" class="btn_wrapper">
     <button plain class="btn2" bind:tap="onlogout">
-        <text class="btn_text">退出登录</text>
+        <text class="btn_text">{{logoutText}}</text>
     </button>
 </view>
 
 
-</scroll-view>
+</scroll-view>

yelaymaths/pages/VideoDetails/VideoDetails.js

@@ -16,6 +16,8 @@ Page({
     VideoDetails: '',
     coverUrl: '',
     playdata: [],
+    /** 列表上方的更新期数文案，整句来自后台配置 */
+    updatedText: '',
     VideoPlayerSrc: '',
     HiddenVideoControl: true,
     top: 0,
@@ -59,7 +61,7 @@ Page({
       })
       .catch((err) => {
         this.setData({ loading: false });
-        wx.showToast({ title: err.message || '课程加载失败', icon: 'none' });
+        wx.showToast({ title: err.message || store.cfg('course.tip.loadFailed'), icon: 'none' });
         setTimeout(() => wx.switchTab({ url: '/pages/kecheng/kecheng' }), 1500);
       });
   },
@@ -77,7 +79,11 @@ Page({
           publishedAt: format.toDateString(item.publishedAt),
           coverUrl: item.coverUrl,
         }));
-        this.setData({ playdata: rows });
+        // 期数文案整句来自后台配置，{n} 在这里替换成实际条数
+        this.setData({
+          playdata: rows,
+          updatedText: store.cfg('course.lesson.updated').replace('{n}', rows.length),
+        });
       })
       .catch((err) => {
         this.setData({ playdata: [] });
@@ -99,18 +105,23 @@ Page({
       })
       .catch((err) => {
         wx.hideLoading();
-        wx.showToast({ title: err.message || '无法播放', icon: 'none' });
+        wx.showToast({ title: err.message || store.cfg('course.tip.playFailed'), icon: 'none' });
       });
   },
 
   /** 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;
+    // 已经拥有就不必再进购买页：原地提示一句
+    if (this.data.owned) {
+      wx.showToast({ title: store.cfg('course.tip.owned'), icon: 'none' });
+      return;
+    }
     wx.navigateTo({ url: '/pages/buy/buy?code=' + this.data.code });
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 });
 

yelaymaths/pages/VideoDetails/VideoDetails.wxml

@@ -7,7 +7,7 @@
     <view class="jieshao">
       <text decode class="video_biaoti">&nbsp;&nbsp;{{VideoTitle}}</text>
       <text decode class="video_miaoshu">&nbsp;&nbsp;{{VideoDetails}}</text>
-      <text decode class="video_info">&nbsp;&nbsp;已更新{{playdata.length}}期</text>
+      <text decode class="video_info">&nbsp;&nbsp;{{updatedText}}</text>
     </view>
 
     <view class="videolistcontainer" bind:tap="onTapLesson"

yelaymaths/pages/VideoDetailsPage/VideoDetailsPage.js

@@ -1,15 +1,8 @@
 // pages/VideoDetailsPage/VideoDetailsPage.js
-const htmlSnip =
-`<p>
-在初中数学的考试当中，解所有题型都需要用到公式，公式的重要性不言而喻！为了更好的帮助孩子们记住初中数学常用的公式、定理，在此老师给大家总结了初中三年所有的公式及定理！这份资料十分珍贵，每次考试都能用的上！
-</p>
-<p>
-<img src="https://api.yeomai.site/WebPages/2/1.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/2.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/3.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/4.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/5.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/6.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/7.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/8.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/9.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/10.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/11.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/12.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/13.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/14.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/15.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/16.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/17.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/18.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/19.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/20.jpg"/><br/><img src="https://api.yeomai.site/WebPages/2/21.jpg"/>
-</p>
-<p>
-<br/>
-</p>
-`
+// 正文 HTML 放在后台配置里（settings.page.formula.content），这里只负责取出来交给 Parser 渲染。
+const store = require('../../utils/store');
+
+const app = getApp();
 
 
 Page({
@@ -18,14 +11,15 @@ Page({
    * 页面的初始数据
    */
   data: {
-    htmlSnip,
+    htmlSnip: '',
   },
 
   /**
    * 生命周期函数--监听页面加载
    */
   onLoad(options) {
-
+    // 页面可能被直接打开（小程序码、搜一搜），等初始化把站点配置读回来
+    app.ready().then(() => this.setData({ htmlSnip: store.cfg('page.formula.content') }));
   },
 
   /**
@@ -80,4 +74,4 @@ Page({
   onShareTimeline(){
 
   }
-})
+})

yelaymaths/pages/WebPageDetails/WebPageDetails.js

@@ -1,6 +1,7 @@
 // pages/WebPageDetails/WebPageDetails.js
 const api = require('../../utils/api');
 const format = require('../../utils/format');
+const store = require('../../utils/store');
 
 Page({
   data: {
@@ -29,11 +30,11 @@ Page({
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 
   onShareTimeline() {
-    return { title: '叶雷讲数学' };
+    return { title: store.cfg('share.title') };
   },
 });
 

yelaymaths/pages/buy/buy.js

@@ -10,8 +10,10 @@ const api = require('../../utils/api');
 const format = require('../../utils/format');
 const store = require('../../utils/store');
 
+const app = getApp();
+
 const POLL_INTERVAL = 1500;
-// 微信的发货推送实测要 13~17 秒才到，原来只等 12 秒，用户多半看到「可能稍有延迟」而不是「购买成功」
+// 微信的发货推送实测要 13~17 秒才到，原来只等 12 秒，用户多半先拿到兜底提示而不是成功提示
 const POLL_MAX = 20;
 
 /** iPhone 上跑 Apple 支付要求微信客户端 ≥ 这个版本 */
@@ -50,9 +52,17 @@ Page({
     coverUrl: '',
     priceYuan: '',
     list: [],
+    // 页面上的固定文案全部来自后台配置，这里只放容器
+    textBuy: '',
+    textBuyList: '',
+    textPaying: '',
+    textOwned: '',
+    textEmpty: '',
   },
 
   onLoad(options) {
+    // 页面可能被直接打开（分享、扫码），先等初始化把站点配置读回来
+    app.ready().then(() => this.applyTexts());
     const code = options && options.code;
     if (code) {
       this.setData({ code: code });
@@ -62,6 +72,16 @@ Page({
     this.loadList();
   },
 
+  applyTexts() {
+    this.setData({
+      textBuy: store.cfg('course.buy.button'),
+      textBuyList: store.cfg('course.buy.buttonList'),
+      textPaying: store.cfg('course.buy.paying'),
+      textOwned: store.cfg('course.buy.owned'),
+      textEmpty: store.cfg('course.buy.empty'),
+    });
+  },
+
   load(code) {
     api
       .getCourse(code)
@@ -74,12 +94,12 @@ Page({
           priceYuan: format.fenToYuan(course.priceFen),
         });
         // 已经拥有就不用再买了，避免重复下单
-        if (course.owned) this.rejectOut('你已经拥有这门课程');
+        if (course.owned) this.rejectOut(store.cfg('course.tip.owned'));
       })
       .catch((err) => {
         this.setData({ loading: false });
         // 课程被下架或课程号拼错，后端会返回错误，这里按同样的方式退出
-        this.rejectOut((err && err.message) || '课程不存在');
+        this.rejectOut((err && err.message) || store.cfg('course.tip.notFound'));
       });
   },
 
@@ -100,7 +120,7 @@ Page({
       })
       .catch((err) => {
         this.setData({ loading: false });
-        wx.showToast({ title: (err && err.message) || '课程加载失败', icon: 'none' });
+        wx.showToast({ title: (err && err.message) || store.cfg('course.tip.loadFailed'), icon: 'none' });
       });
   },
 
@@ -131,9 +151,9 @@ Page({
     // 购买的前置条件：用户主动使用过登录功能。静默登录不算。
     if (!store.isLoggedIn()) {
       wx.showModal({
-        title: '请先登录',
-        content: '使用微信登录后才能购买课程',
-        confirmText: '去登录',
+        title: store.cfg('course.login.title'),
+        content: store.cfg('course.login.desc'),
+        confirmText: store.cfg('course.login.confirm'),
         success: (res) => {
           if (res.confirm) {
             wx.navigateTo({ url: '/pages/LoginOrOutDetails/LoginOrOutDetails' });
@@ -152,7 +172,7 @@ Page({
     if (!this.checkIosVersion()) return;
 
     this.setData({ buying: true });
-    wx.showLoading({ title: '发起支付', mask: true });
+    wx.showLoading({ title: store.cfg('course.loading.paying'), mask: true });
 
     api
       .createOrder(code)
@@ -188,13 +208,7 @@ Page({
     if (!version || compareVersion(version, IOS_MIN_WECHAT) >= 0) return true;
 
     wx.showModal({
-      title: '请先升级微信',
-      content:
-        'iPhone 上购买课程需要微信 ' +
-        IOS_MIN_WECHAT +
-        ' 及以上版本，你当前是 ' +
-        version +
-        '。请到 App Store 更新微信后重试。',
+      content: '请先升级微信',
       showCancel: false,
       confirmText: '知道了',
     });
@@ -212,7 +226,7 @@ Page({
       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 });
+          wx.showToast({ title: store.cfg('course.tip.buySuccess'), icon: 'success', mask: true });
           // 单课程模式从详情页进来，买完退回去；列表模式留在原地刷新
           if (this.data.code) {
             setTimeout(() => this.back(), 1500);
@@ -223,7 +237,7 @@ Page({
         }
         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 });
+          wx.showToast({ title: store.cfg('course.tip.payPending'), icon: 'none', duration: 3000 });
           return;
         }
         return new Promise((resolve) => setTimeout(resolve, POLL_INTERVAL)).then(poll);
@@ -233,6 +247,6 @@ Page({
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 });

yelaymaths/pages/buy/buy.wxml

@@ -10,7 +10,7 @@
       class="buy-btn"
       disabled="{{buying || owned}}"
       bindtap="buyNow"
-    >{{owned ? '已拥有' : (buying ? '支付中…' : '立即购买')}}</button>
+    >{{owned ? textOwned : (buying ? textPaying : textBuy)}}</button>
   </view>
 
   <view class="buy-list" wx:else>
@@ -25,10 +25,10 @@
         disabled="{{buying || item.owned}}"
         data-code="{{item.code}}"
         bindtap="buyNow"
-      >{{item.owned ? '已拥有' : '购买'}}</button>
+      >{{item.owned ? textOwned : textBuyList}}</button>
     </view>
     <view class="buy-empty" wx:if="{{!loading && list.length === 0}}">
-      <text>暂无可购买的课程</text>
+      <text>{{textEmpty}}</text>
     </view>
   </view>
 </view>

yelaymaths/pages/index/index.js

@@ -111,9 +111,9 @@ Page({
     updateManager.onCheckForUpdate(() => {});
     updateManager.onUpdateReady(() => {
       wx.showModal({
-        title: '更新提示',
+        title: store.cfg('app.update.title'),
         showCancel: false,
-        content: '新版本已准备好，即将重启应用',
+        content: store.cfg('app.update.content'),
         success: (res) => {
           if (res.confirm) updateManager.applyUpdate();
         },
@@ -174,10 +174,10 @@ Page({
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 
   onShareTimeline() {
-    return { title: '叶雷讲数学' };
+    return { title: store.cfg('share.title') };
   },
 });

yelaymaths/pages/kecheng/kecheng.js

@@ -69,7 +69,7 @@ Page({
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 });
 

yelaymaths/pages/wode/wode.js

@@ -10,8 +10,9 @@ Page({
     showCode: false,
     headiconUrl: '',
     isLoggedIn: false,
-    userNameText: '未登录',
-    loginBtnText: '登录注册',
+    // 文字全部来自后台配置
+    userNameText: '',
+    loginBtnText: '',
     version: '',
     qrcodeUrl: '',
     text2: '',
@@ -52,8 +53,8 @@ Page({
     const registered = !!(user && user.isLogin === 1);
     this.setData({
       isLoggedIn: registered,
-      userNameText: registered ? user.nickname : '未登录',
-      loginBtnText: registered ? '退出登录' : '登录注册',
+      userNameText: registered ? user.nickname : store.cfg('profile.user.guest'),
+      loginBtnText: registered ? store.cfg('login.button.logout') : store.cfg('profile.button.login'),
       // 未登录一律用默认头像：静默登录仍会带回上次设置的头像，
       // 不挡住的话退出登录后还会显示用户自己的头像。
       headiconUrl:
@@ -69,7 +70,7 @@ Page({
 
   toChangeUserInfo() {
     if (!this.data.isLoggedIn) {
-      wx.showToast({ mask: true, icon: 'error', title: '请先登录' });
+      wx.showToast({ mask: true, icon: 'error', title: store.cfg('profile.tip.needLogin') });
       return;
     }
     wx.navigateTo({ url: '/pages/ChangeUserInfo/ChangeUserInfo' });
@@ -84,7 +85,6 @@ Page({
   },
 
   onShareAppMessage() {
-    return { title: '叶雷讲数学', path: '/pages/index/index' };
+    return { title: store.cfg('share.title'), path: '/pages/index/index' };
   },
 });
-

yelaymaths_admin/src/app/(admin)/settings/page.tsx

@@ -23,6 +23,58 @@ const SWITCHES = [
     label: '使用开发库时，显示已购买课程',
     hint: '关（默认）：小程序读开发库时，课程不显示「已购」状态，也不返回已购课程列表。开：按实际权益正常显示。生产库不受这个开关影响。',
   },
+  {
+    key: 'pay.blocked',
+    label: '暂停支付（拦截下单）',
+    hint: '开：所有下单直接返回「支付暂不可用」，不产生订单——临时停售 / 维护时用。关（默认）：正常收款。注意：开关存在你当前查看的数据库里，而小程序读哪个库就受哪个库的开关控制，所以开发库和生产库是各设各的（改之前先确认左下角看的是哪个库）。',
+  },
+];
+
+/** 服务端返回、小程序原样显示的报错文案。 */
+const SERVER_TIP_KEYS = new Set([
+  'course.tip.notFoundOrOffline',
+  'course.tip.notFound',
+  'course.tip.offline',
+  'course.tip.lessonNotFound',
+  'course.tip.noEntitlement',
+  'course.tip.expired',
+  'course.tip.alreadyOwned',
+  'course.tip.noProduct',
+]);
+
+/**
+ * 配置项分组。数组顺序就是页面上的展示顺序，每组默认折叠。
+ *
+ * 用「前缀 + 例外」来归类：认不出来的会落到最后的「其他」，不会丢。
+ */
+const GROUP_RULES: Array<{ title: string; hint?: string; match: (key: string) => boolean }> = [
+  { title: '首页', match: (k) => k.startsWith('home.') },
+  { title: '登录页', match: (k) => k.startsWith('login.') },
+  {
+    title: '我的页',
+    match: (k) =>
+      k.startsWith('profile.') && !k.startsWith('profile.form.') && !k.startsWith('profile.confirm.'),
+  },
+  {
+    title: '修改资料页',
+    match: (k) => k.startsWith('profile.form.') || k.startsWith('profile.confirm.'),
+  },
+  {
+    title: '服务端提示',
+    hint: '服务端返回的报错文案，小程序收到后原样显示。改完立即生效，不用发版。',
+    match: (k) => SERVER_TIP_KEYS.has(k),
+  },
+  { title: '课程与购买页', match: (k) => k.startsWith('course.') },
+  { title: '账号状态', match: (k) => k.startsWith('account.') },
+  { title: '应用更新', match: (k) => k.startsWith('app.') },
+  { title: '分享', match: (k) => k === 'share.title' },
+  { title: '介绍页', match: (k) => k.startsWith('page.') },
+  { title: '通用文案', match: (k) => k.startsWith('common.') },
+  {
+    title: '系统',
+    hint: 'system.active_datasource 是小程序当前用的数据源，别在这里改——用左下角「线上小程序数据源」的切换按钮。',
+    match: (k) => k.startsWith('site.') || k.startsWith('system.') || k.startsWith('develop.'),
+  },
 ];
 
 export default function SettingsPage() {
@@ -85,6 +137,17 @@ export default function SettingsPage() {
   // 开关项已经在上面单独渲染，别再以文本框的形式出现一次
   const textRows = rows.filter((r) => !SWITCHES.some((s) => s.key === r.key));
 
+  // 按分组归类：只认第一个匹配的规则（否则 course.tip.notFound 会同时出现在两个分组里）。
+  // 认不出来的落到「其他」，保证不会有配置项看不见。
+  const groupOf = (key: string) => GROUP_RULES.find((r) => r.match(key))?.title ?? '其他';
+  const groups = GROUP_RULES.map((rule) => ({
+    title: rule.title,
+    hint: rule.hint,
+    rows: textRows.filter((r) => groupOf(r.key) === rule.title),
+  })).filter((g) => g.rows.length > 0);
+  const rest = textRows.filter((r) => groupOf(r.key) === '其他');
+  if (rest.length > 0) groups.push({ title: '其他', hint: undefined, rows: rest });
+
   return (
     <div className="space-y-4">
       <h1 className="text-lg font-semibold text-gray-900">系统配置</h1>
@@ -93,7 +156,8 @@ export default function SettingsPage() {
 
       <Card title="站点文案与开关">
         <p className="mb-4 text-xs text-gray-500">
-          小程序首屏显示的标题、我的页面菜单文案、版本号等都在这里。修改后小程序下拉刷新即可生效。
+          小程序里的文案、以及服务端返回给用户的提示都在这里，按页面分组。点标题展开，改完点「保存」。
+          小程序端改完下拉刷新即可生效；服务端提示改完立即生效。
         </p>
 
         <div className="mb-5 space-y-4 border-b border-gray-100 pb-5">
@@ -132,25 +196,36 @@ export default function SettingsPage() {
           })}
         </div>
 
-        <div className="space-y-3">
-          {textRows.map((row) => (
-            <div key={row.key} className="flex items-center gap-3">
-              <div className="w-56 shrink-0">
-                <div className="text-sm text-gray-700">{row.remark || row.key}</div>
-                <div className="font-mono text-xs text-gray-400">{row.key}</div>
+        <div className="space-y-2">
+          {groups.map((group) => (
+            <details key={group.title} className="rounded-md border border-gray-200 bg-white">
+              <summary className="cursor-pointer select-none px-3 py-2 text-sm font-medium text-gray-800 hover:bg-gray-50">
+                {group.title}
+                <span className="ml-2 text-xs font-normal text-gray-400">{group.rows.length} 项</span>
+              </summary>
+              <div className="space-y-3 border-t border-gray-100 px-3 py-3">
+                {group.hint && <p className="text-xs text-gray-500">{group.hint}</p>}
+                {group.rows.map((row) => (
+                  <div key={row.key} className="flex items-center gap-3">
+                    <div className="w-56 shrink-0">
+                      <div className="text-sm text-gray-700">{row.remark || row.key}</div>
+                      <div className="font-mono text-xs text-gray-400">{row.key}</div>
+                    </div>
+                    <div className="flex-1">
+                      <Input
+                        value={draft[row.key] ?? ''}
+                        onChange={(v) => setDraft({ ...draft, [row.key]: v })}
+                      />
+                    </div>
+                    <Button variant="ghost" onClick={() => save(row)} disabled={savingKey === row.key}>
+                      {savingKey === row.key ? '保存中…' : '保存'}
+                    </Button>
+                  </div>
+                ))}
               </div>
-              <div className="flex-1">
-                <Input
-                  value={draft[row.key] ?? ''}
-                  onChange={(v) => setDraft({ ...draft, [row.key]: v })}
-                />
-              </div>
-              <Button variant="ghost" onClick={() => save(row)} disabled={savingKey === row.key}>
-                {savingKey === row.key ? '保存中…' : '保存'}
-              </Button>
-            </div>
+            </details>
           ))}
-          {textRows.length === 0 && (
+          {groups.length === 0 && (
             <div className="py-6 text-center text-sm text-gray-400">暂无配置</div>
           )}
         </div>

yelaymaths_admin/tsconfig.tsbuildinfo

@@ -1 +1 @@
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truncated

yelaymaths_api/src/common/site-flags.ts

@@ -9,16 +9,66 @@ import type { PrismaService } from '../prisma/prisma.service';
 export const SITE_FLAG_KEYS = {
   /** 使用开发库时是否显示已购课程。开发库里带着老数据，容易让人误以为自己买过课。 */
   showOwnedOnDevelop: 'develop.show_owned_courses',
+  /**
+   * 是否暂停支付（拦截下单）。
+   *
+   * 打开后所有下单直接返回「支付暂不可用」，不产生任何订单——临时停售或维护时用。
+   * 默认关（等于正常收款）。开关存在数据库里，所以每个库一份：
+   * 开发库通常是开的（防止误下单），生产库通常是关的。
+   */
+  payBlocked: 'pay.blocked',
 } as const;
 
 export type SiteFlagKey = (typeof SITE_FLAG_KEYS)[keyof typeof SITE_FLAG_KEYS];
 
+/**
+ * 课程相关的报错文案 key（都存在 settings 表，后台可改）。
+ *
+ * 代码里同时保留默认值：配置被删或改空时仍然给用户一句能看懂的话。
+ */
+export const COURSE_TIP_KEYS = {
+  /** 课程不存在或已下架（详情页 / 下单） */
+  gone: 'course.tip.notFoundOrOffline',
+  /** 课程不存在（播放鉴权）；小程序购买页也用它做兜底 */
+  notFound: 'course.tip.notFound',
+  /** 课程已下架 */
+  offline: 'course.tip.offline',
+  /** 课时不存在 */
+  lessonNotFound: 'course.tip.lessonNotFound',
+  /** 尚未拥有该课程 */
+  noEntitlement: 'course.tip.noEntitlement',
+  /** 课程已过期 */
+  expired: 'course.tip.expired',
+  /** 你已拥有该课程（下单时的兜底，小程序一般先在本地拦掉） */
+  alreadyOwned: 'course.tip.alreadyOwned',
+  /** 该课程尚未配置支付商品 */
+  noProduct: 'course.tip.noProduct',
+  /** 小程序切到开发库时不收钱，下单直接给这句 */
+  payUnavailable: 'course.tip.payUnavailable',
+} as const;
+
 /** 读一个布尔开关，缺省为 false。 */
 export async function readFlag(prisma: PrismaService, key: SiteFlagKey): Promise<boolean> {
   const row = await prisma.active.setting.findUnique({ where: { key } });
   return row?.value === '1';
 }
 
+/**
+ * 读一条文本配置。
+ *
+ * 只在报错路径上调用（比如课程被下架），所以不做缓存。
+ * 没有这一行或值为空时用兜底值——报错文案不能是空的。
+ */
+export async function readText(
+  prisma: PrismaService,
+  key: string,
+  fallback: string,
+): Promise<string> {
+  const row = await prisma.active.setting.findUnique({ where: { key } });
+  const value = (row?.value ?? '').trim();
+  return value || fallback;
+}
+
 /**
  * 「已购课程」现在该不该对外显示。
  *

yelaymaths_api/src/modules/courses/courses.service.ts

@@ -1,7 +1,7 @@
 import { Inject, Injectable } from '@nestjs/common';
 import { APP_CONFIG, type AppConfig } from '../../config/config';
 import { AppError } from '../../common/errors';
-import { showOwnedCourses } from '../../common/site-flags';
+import { COURSE_TIP_KEYS, readText, showOwnedCourses } from '../../common/site-flags';
 import { staticUrls } from '../../common/urls';
 import { PrismaService } from '../../prisma/prisma.service';
 import { MediaService } from '../media/media.service';
@@ -53,7 +53,10 @@ export class CoursesService {
 
   async detail(userId: number, code: string) {
     const course = await this.prisma.active.course.findUnique({ where: { code } });
-    if (!course || course.status !== 1) throw AppError.notFound('课程不存在或已下架');
+    if (!course || course.status !== 1) {
+      // 文案放后台配置里，改提示不用发版
+      throw AppError.notFound(await readText(this.prisma, COURSE_TIP_KEYS.gone, '课程不存在或已下架'));
+    }
 
     const owned =
       (await showOwnedCourses(this.prisma)) &&
@@ -100,7 +103,9 @@ export class CoursesService {
     const lesson = await this.prisma.active.lesson.findFirst({
       where: { course_id: course.id, chapter_id: chapterId, play_id: playId },
     });
-    if (!lesson) throw AppError.notFound('课时不存在');
+    if (!lesson) {
+      throw AppError.notFound(await readText(this.prisma, COURSE_TIP_KEYS.lessonNotFound, '课时不存在'));
+    }
 
     const relative = `Course/${course.code}/${lesson.chapter_id}/${lesson.play_id}/playlist.m3u8`;
     return {
@@ -134,15 +139,23 @@ export class CoursesService {
   /** 取课程并校验权益，是唯一的鉴权入口。 */
   private async requireEntitlement(userId: number, code: string) {
     const course = await this.prisma.active.course.findUnique({ where: { code } });
-    if (!course) throw AppError.notFound('课程不存在');
-    if (course.status !== 1) throw AppError.offline();
+    if (!course) {
+      throw AppError.notFound(await readText(this.prisma, COURSE_TIP_KEYS.notFound, '课程不存在'));
+    }
+    if (course.status !== 1) {
+      throw AppError.offline(await readText(this.prisma, COURSE_TIP_KEYS.offline, '课程已下架'));
+    }
 
     const owned = await this.prisma.active.entitlement.findUnique({
       where: { user_id_course_id: { user_id: userId, course_id: course.id } },
     });
-    if (!owned) throw AppError.noEntitlement();
+    if (!owned) {
+      throw AppError.noEntitlement(
+        await readText(this.prisma, COURSE_TIP_KEYS.noEntitlement, '尚未拥有该课程'),
+      );
+    }
     if (owned.expire_at && owned.expire_at.getTime() < Date.now()) {
-      throw AppError.noEntitlement('课程已过期');
+      throw AppError.noEntitlement(await readText(this.prisma, COURSE_TIP_KEYS.expired, '课程已过期'));
     }
 
     return course;

yelaymaths_api/src/modules/orders/orders.service.ts

@@ -1,6 +1,7 @@
 import { randomInt } from 'node:crypto';
 import { Injectable } from '@nestjs/common';
 import { AppError, ErrorCode } from '../../common/errors';
+import { COURSE_TIP_KEYS, readFlag, readText, SITE_FLAG_KEYS } from '../../common/site-flags';
 import { PrismaService } from '../../prisma/prisma.service';
 import { OrderStatus, PaymentsService } from '../payments/payments.service';
 import { WxPayService } from '../payments/wxpay.service';
@@ -34,9 +35,21 @@ export class OrdersService {
     quantity = 1,
     terminal: string | null = null,
   ): Promise<{ outTradeNo: string; payData: PayData }> {
-    // 支付配置跟着「小程序当前数据源」走：切到开发库就用开发那套（默认沙箱），不会误收真钱
+    // 支付配置跟着「小程序当前数据源」走：生产库用现网那套
     const source = this.prisma.activeEnv;
     const pay = this.wxpay.configFor(source);
+
+    // 支付总开关：打开就拦下单（临时停售、维护、或开发库防止误下单）。
+    // 开关存在数据库里，小程序读哪个库就受哪个库的开关控制，所以开发库和生产库可以各设各的。
+    // 放在「支付是否配置」之前判断，保证暂停期间永远是同一句提示。
+    if (await readFlag(this.prisma, SITE_FLAG_KEYS.payBlocked)) {
+      throw new AppError(
+        ErrorCode.PAY_NOT_ENABLED,
+        await readText(this.prisma, COURSE_TIP_KEYS.payUnavailable, '支付暂不可用'),
+        503,
+      );
+    }
+
     if (!this.wxpay.enabledFor(source)) {
       throw new AppError(ErrorCode.PAY_NOT_ENABLED, '支付尚未开通，请联系管理员', 503);
     }
@@ -55,17 +68,26 @@ export class OrdersService {
     }
 
     const course = await this.prisma.active.course.findUnique({ where: { code: courseCode } });
-    if (!course || course.status !== 1) throw AppError.notFound('课程不存在或已下架');
+    if (!course || course.status !== 1) {
+      // 与课程详情用同一条配置，两处提示保持一致
+      throw AppError.notFound(await readText(this.prisma, COURSE_TIP_KEYS.gone, '课程不存在或已下架'));
+    }
 
     const owned = await this.prisma.active.entitlement.findUnique({
       where: { user_id_course_id: { user_id: userId, course_id: course.id } },
     });
-    if (owned) throw AppError.conflict('你已拥有该课程');
+    if (owned) {
+      throw AppError.conflict(await readText(this.prisma, COURSE_TIP_KEYS.alreadyOwned, '你已拥有该课程'));
+    }
 
     const product = await this.prisma.active.product.findFirst({
       where: { course_id: course.id, status: 1 },
     });
-    if (!product) throw AppError.notFound('该课程尚未配置支付商品');
+    if (!product) {
+      throw AppError.notFound(
+        await readText(this.prisma, COURSE_TIP_KEYS.noProduct, '该课程尚未配置支付商品'),
+      );
+    }
 
     const outTradeNo = this.newOutTradeNo();
     const amountFen = product.price_fen * quantity;