fix(user): correct WeChat JSAPI pay invoke params and JSSDK init

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/h5-user/src/pages/PayPage.tsx

@@ -121,7 +121,6 @@ export default function PayPage() {
 
       if (result.mode === 'jsapi' && result.prepay) {
         setMockMode(false);
-        await weixinSdk.init();
         await weixinSdk.pay(result.prepay);
         const paid = await waitOrderPaid(orderId);
         if (!paid) {

packages/weixin-sdk/src/index.ts

@@ -49,6 +49,10 @@ export function createWeixinSdk(config: WeixinSdkConfig) {
     chooseImages: (options?: Parameters<typeof chooseWechatImages>[1]) =>
       chooseWechatImages(config, options),
     pay: (prepay: Parameters<typeof invokeWechatPay>[0]) =>
-      invokeWechatPay(prepay, { apiBase: config.apiBase, clientApp: config.clientApp }),
+      invokeWechatPay(prepay, {
+        apiBase: config.apiBase ?? '/api/v1',
+        clientApp: config.clientApp,
+        getAccessToken: config.getAccessToken,
+      }),
   };
 }

packages/weixin-sdk/src/pay.ts

@@ -2,6 +2,23 @@ import type { WechatJsapiPrepayParams } from '@dukang/shared-types';
 import { getRuntimePlatform } from './env';
 import { ensureJssdkReady } from './jssdk';
 
+export type WechatPayInvokeConfig = {
+  apiBase?: string;
+  clientApp?: string;
+  getAccessToken?: () => string | null;
+};
+
+/** wx.chooseWXPay 要求 timestamp 小写；服务端签名与 Bridge 使用 timeStamp */
+function toChooseWxPayOptions(prepay: WechatJsapiPrepayParams) {
+  return {
+    timestamp: prepay.timeStamp,
+    nonceStr: prepay.nonceStr,
+    package: prepay.package,
+    signType: prepay.signType,
+    paySign: prepay.paySign,
+  };
+}
+
 function invokeBridgePay(params: WechatJsapiPrepayParams): Promise<void> {
   return new Promise((resolve, reject) => {
     const bridge = window.WeixinJSBridge;
@@ -29,10 +46,19 @@ function invokeBridgePay(params: WechatJsapiPrepayParams): Promise<void> {
   });
 }
 
+async function waitForWeixinBridge(): Promise<void> {
+  if (window.WeixinJSBridge) return;
+  if (typeof document === 'undefined') return;
+  await new Promise<void>((resolve) => {
+    if (window.WeixinJSBridge) resolve();
+    else document.addEventListener('WeixinJSBridgeReady', () => resolve(), { once: true });
+  });
+}
+
 /** 调起微信支付 */
 export async function invokeWechatPay(
   prepay: WechatJsapiPrepayParams,
-  config?: { apiBase?: string; clientApp?: string },
+  config?: WechatPayInvokeConfig,
 ): Promise<void> {
   const platform = getRuntimePlatform();
 
@@ -55,28 +81,28 @@ export async function invokeWechatPay(
       await ensureJssdkReady({
         apiBase: config.apiBase ?? '/api/v1',
         clientApp: config.clientApp,
+        getAccessToken: config.getAccessToken,
+        url: typeof window !== 'undefined' ? window.location.href.split('#')[0] : undefined,
+        jsApiList: ['chooseWXPay'],
       });
     }
+
+    // Bridge 参数与商户签名一致，优先于 chooseWXPay
+    await waitForWeixinBridge();
+    if (window.WeixinJSBridge) {
+      return invokeBridgePay(prepay);
+    }
+
     if (window.wx?.chooseWXPay) {
       return new Promise((resolve, reject) => {
         window.wx!.chooseWXPay!({
-          ...prepay,
+          ...toChooseWxPayOptions(prepay),
           success: () => resolve(),
           fail: (err) => reject(new Error(err.errMsg || '支付失败')),
           cancel: () => reject(new Error('用户取消支付')),
         });
       });
     }
-    if (window.WeixinJSBridge) {
-      return invokeBridgePay(prepay);
-    }
-    if (typeof document !== 'undefined') {
-      await new Promise<void>((resolve) => {
-        if (window.WeixinJSBridge) resolve();
-        else document.addEventListener('WeixinJSBridgeReady', () => resolve(), { once: true });
-      });
-      return invokeBridgePay(prepay);
-    }
   }
 
   throw new Error('当前环境不支持微信支付');

packages/weixin-sdk/src/types.ts

@@ -31,7 +31,12 @@ export type WxApi = {
     success?: (res: { resultStr: string }) => void;
     fail?: (res: { errMsg: string }) => void;
   }) => void;
-  chooseWXPay: (options: WechatJsapiPrepayParams & {
+  chooseWXPay: (options: {
+    timestamp: string;
+    nonceStr: string;
+    package: string;
+    signType: string;
+    paySign: string;
     success?: () => void;
     fail?: (res: { errMsg: string }) => void;
     cancel?: () => void;