fix wechat virtual payment coin flow

src/components/rpg-entry/RpgEntryHomeView.tsx

@@ -337,6 +337,8 @@ type RechargePaymentResult = {
   title: string;
   message: string;
 };
+const WECHAT_PAY_RESULT_RECHECK_INTERVAL_MS = 250;
+const WECHAT_PAY_RESULT_RECHECK_TIMEOUT_MS = 10000;
 
 function getBarcodeDetectorConstructor(): BarcodeDetectorConstructorLike | null {
   const maybeDetector = (globalThis as unknown as {
@@ -4588,7 +4590,7 @@ export function RpgEntryHomeView({
   const handleWechatPayResult = useCallback(() => {
     const payResult = readWechatPayResultFromHash();
     if (!payResult) {
-      return;
+      return false;
     }
 
     if (
@@ -4596,7 +4598,7 @@ export function RpgEntryHomeView({
       payResult.orderId &&
       payResult.orderId !== pendingWechatRechargeOrderIdRef.current
     ) {
-      return;
+      return false;
     }
 
     setSubmittingRechargeProductId(null);
@@ -4661,6 +4663,7 @@ export function RpgEntryHomeView({
     }
 
     clearWechatPayResultHash();
+    return true;
   }, [onRechargeSuccess, refreshRechargeState]);
   const openRechargeModal = () => {
     if (!authUi?.user) {
@@ -4823,6 +4826,39 @@ export function RpgEntryHomeView({
       document.removeEventListener('visibilitychange', handleResume);
     };
   }, [handleWechatPayResult]);
+  useEffect(() => {
+    if (
+      rechargePaymentResult?.kind !== 'pending' ||
+      rechargePaymentResult.title !== '正在支付'
+    ) {
+      return undefined;
+    }
+
+    const startedAt = Date.now();
+    let timer: number | null = null;
+    const pollPayResult = () => {
+      if (handleWechatPayResult()) {
+        return;
+      }
+      if (Date.now() - startedAt >= WECHAT_PAY_RESULT_RECHECK_TIMEOUT_MS) {
+        return;
+      }
+      timer = window.setTimeout(
+        pollPayResult,
+        WECHAT_PAY_RESULT_RECHECK_INTERVAL_MS,
+      );
+    };
+
+    timer = window.setTimeout(
+      pollPayResult,
+      WECHAT_PAY_RESULT_RECHECK_INTERVAL_MS,
+    );
+    return () => {
+      if (timer !== null) {
+        window.clearTimeout(timer);
+      }
+    };
+  }, [handleWechatPayResult, rechargePaymentResult?.kind, rechargePaymentResult?.title]);
   const loadTaskCenter = useCallback(() => {
     const requestId = ++taskCenterRequestIdRef.current;
     setTaskCenterError(null);