From 0c6c6e0ea67b9699a4f35459da3eaebecff9020b Mon Sep 17 00:00:00 2001
From: erio <asakifeng@gmail.com>
Date: Fri, 6 Mar 2026 22:34:57 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E5=BE=AE=E4=BF=A1=20H5=20=E6=94=AF?=
 =?UTF-8?q?=E4=BB=98=E6=9C=AA=E5=BC=80=E9=80=9A=E6=97=B6=20fallback=20?=
 =?UTF-8?q?=E5=88=B0=20Native=20=E6=89=AB=E7=A0=81?=
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移动端尝试 H5 下单失败时自动降级为 Native 二维码模式，
避免因 H5 权限未开通导致支付不可用。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 src/lib/wxpay/provider.ts | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/lib/wxpay/provider.ts b/src/lib/wxpay/provider.ts
index 82decfb..e27b990 100644
--- a/src/lib/wxpay/provider.ts
+++ b/src/lib/wxpay/provider.ts
@@ -35,18 +35,19 @@ export class WxpayProvider implements PaymentProvider {
       throw new Error('WXPAY_NOTIFY_URL is required');
     }
 
-    if (request.isMobile) {
-      if (!request.clientIp) {
-        throw new Error('clientIp is required for H5 payment');
+    if (request.isMobile && request.clientIp) {
+      try {
+        const h5Url = await createH5Order({
+          out_trade_no: request.orderId,
+          description: request.subject,
+          notify_url: notifyUrl,
+          amount: request.amount,
+          payer_client_ip: request.clientIp,
+        });
+        return { tradeNo: request.orderId, payUrl: h5Url };
+      } catch {
+        // H5 未开通，fallback 到 Native 扫码
       }
-      const h5Url = await createH5Order({
-        out_trade_no: request.orderId,
-        description: request.subject,
-        notify_url: notifyUrl,
-        amount: request.amount,
-        payer_client_ip: request.clientIp,
-      });
-      return { tradeNo: request.orderId, payUrl: h5Url };
     }
 
     const codeUrl = await createPcOrder({