门店页面修改

packages/weixin-sdk/src/scan.ts

@@ -23,16 +23,28 @@ export async function scanQrCode(config: WeixinSdkConfig): Promise<string | null
       clientApp: config.clientApp,
       getAccessToken: config.getAccessToken,
     });
-    if (window.wx?.scanQRCode) {
-      return new Promise((resolve) => {
-        window.wx!.scanQRCode!({
-          needResult: 1,
-          scanType: ['qrCode', 'barCode'],
-          success: (res) => resolve(res.resultStr || null),
-          fail: () => resolve(null),
-        });
-      });
+    if (!window.wx?.scanQRCode) {
+      throw new Error('当前微信版本不支持扫码，请升级微信后重试');
     }
+    return new Promise((resolve, reject) => {
+      window.wx!.scanQRCode!({
+        needResult: 1,
+        scanType: ['qrCode', 'barCode'],
+        success: (res) => resolve(res.resultStr || null),
+        fail: (res) => {
+          const msg = res.errMsg || '扫码失败';
+          if (/cancel/i.test(msg)) {
+            resolve(null);
+            return;
+          }
+          if (/permission|auth|denied|授权|拒绝|camera/i.test(msg)) {
+            reject(new Error('相机权限未开启，请在微信设置中允许使用摄像头'));
+            return;
+          }
+          reject(new Error(msg));
+        },
+      });
+    });
   }
 
   const manual = typeof window !== 'undefined' ? window.prompt('当前环境无法调起微信扫码，请手动输入核销码') : null;