feat: sync backend with frontend - add all UserEquity fields (brandIcon, brandIconImage, brandColor, platformType, hasUsedBenefit, benefit sub-fields, etc.) and new routes

src/services/wechatSubscribeService.js

@@ -0,0 +1,86 @@
+const axios = require('axios');
+
+let accessTokenCache = {
+  token: null,
+  expiresAt: null
+};
+
+class WechatSubscribeService {
+  static async getAccessToken() {
+    const now = Date.now();
+    
+    if (accessTokenCache.token && accessTokenCache.expiresAt && now < accessTokenCache.expiresAt) {
+      return accessTokenCache.token;
+    }
+    
+    const appId = process.env.WECHAT_APPID;
+    const appSecret = process.env.WECHAT_APPSECRET;
+    
+    const url = `https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=${appId}&secret=${appSecret}`;
+    
+    try {
+      const response = await axios.get(url);
+      const { access_token, expires_in } = response.data;
+      
+      accessTokenCache = {
+        token: access_token,
+        expiresAt: now + (expires_in - 300) * 1000
+      };
+      
+      return access_token;
+    } catch (error) {
+      console.error('获取微信 access_token 失败:', error.response?.data || error.message);
+      throw new Error('获取微信 access_token 失败');
+    }
+  }
+  
+  static async sendSubscribeMessage({ touser, templateId, page, data }) {
+    const accessToken = await this.getAccessToken();
+    const url = `https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token=${accessToken}`;
+    
+    const requestData = {
+      touser,
+      template_id: templateId,
+      page: page || 'pages/index/index',
+      data
+    };
+    
+    try {
+      const response = await axios.post(url, requestData);
+      
+      if (response.data.errcode === 0) {
+        return { success: true, messageId: response.data.msgid };
+      } else {
+        console.error('发送订阅消息失败:', response.data);
+        return { 
+          success: false, 
+          errcode: response.data.errcode, 
+          errmsg: response.data.errmsg 
+        };
+      }
+    } catch (error) {
+      console.error('发送订阅消息异常:', error.response?.data || error.message);
+      return { success: false, errmsg: error.message };
+    }
+  }
+  
+  static async sendVersionUpdateMessage({ openid, templateId, character_string1, thing3, thing6 }) {
+    const data = {
+      character_string1: { value: character_string1 },
+      thing3: { value: thing3 }
+    };
+    
+    if (thing6) {
+      data.thing6 = { value: thing6 };
+    }
+    
+    return this.sendSubscribeMessage({
+      touser: openid,
+      templateId,
+      page: 'pages/index/index',
+      data
+    });
+  }
+}
+
+module.exports = WechatSubscribeService;