's'

app/lib/payEnv.ts

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+/**
+ * 支付环境检测：PC / H5 / 微信浏览器
+ * 参考 digital app/lib/payEnv.ts
+ */
+
+export type PayEnv = "pc" | "h5" | "wechat";
+export type PayChannel = "alipay" | "wxpay";
+
+export function isWeChat(): boolean {
+  if (typeof navigator === "undefined") return false;
+  return /MicroMessenger/i.test(navigator.userAgent);
+}
+
+export function isMobile(): boolean {
+  if (typeof navigator === "undefined") return false;
+  return /AppleWebKit.*Mobile|Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
+    navigator.userAgent
+  );
+}
+
+export function getPayEnv(): PayEnv {
+  if (isWeChat()) return "wechat";
+  if (isMobile()) return "h5";
+  return "pc";
+}
+
+export function getRecommendedChannel(env: PayEnv): PayChannel {
+  return "wxpay";
+}
+
+export function mustUseWxPay(env: PayEnv): boolean {
+  return env === "wechat";
+}
+
+export function getDeviceFromEnv(env: PayEnv): "pc" | "h5" | "wechat" {
+  if (env === "wechat") return "wechat";
+  return env === "pc" ? "pc" : "h5";
+}

app/lib/usePayStatusPoll.ts

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+/**
+ * 微信 H5 支付完成后可能不跳转，通过 cookie 轮询检测支付状态
+ * 参考 digital usePayStatusPoll
+ */
+import { useEffect, useRef, useState } from "react";
+
+const COOKIE_NAME = "nomadvip_pay_order";
+const POLL_INTERVAL = 2000;
+const MAX_POLLS = 150;
+const MAX_AGE_MS = 15 * 60 * 1000;
+
+function getCookie(name: string): string | null {
+  if (typeof document === "undefined") return null;
+  const match = document.cookie.match(new RegExp(`(?:^|; )${name}=([^;]*)`));
+  return match ? decodeURIComponent(match[1]) : null;
+}
+
+function clearCookie(name: string): void {
+  if (typeof document === "undefined") return;
+  document.cookie = `${name}=; path=/; max-age=0`;
+}
+
+function parsePayOrderCookie(raw: string | null): [string | null, boolean] {
+  if (!raw?.trim()) return [null, false];
+  const parts = raw.split("|");
+  const orderId = parts[0]?.trim() || raw.trim();
+  const ts = parts[1] ? parseInt(parts[1], 10) : NaN;
+  if (!orderId) return [null, false];
+  if (Number.isNaN(ts)) return [orderId, false];
+  if (Date.now() - ts > MAX_AGE_MS) return [orderId, false];
+  return [orderId, true];
+}
+
+export function usePayStatusPoll(onPaid: () => void): boolean {
+  const [polling, setPolling] = useState(false);
+  const onPaidRef = useRef(onPaid);
+  onPaidRef.current = onPaid;
+
+  useEffect(() => {
+    const raw = getCookie(COOKIE_NAME);
+    const [orderId, isValid] = parsePayOrderCookie(raw);
+    if (!orderId || !isValid) {
+      if (raw) clearCookie(COOKIE_NAME);
+      return;
+    }
+
+    setPolling(true);
+    let count = 0;
+    const timer = setInterval(async () => {
+      count++;
+      if (count > MAX_POLLS) {
+        clearInterval(timer);
+        clearCookie(COOKIE_NAME);
+        setPolling(false);
+        return;
+      }
+      try {
+        const res = await fetch(`/api/pay/status?order_id=${encodeURIComponent(orderId)}`);
+        const data = await res.json();
+        if (data?.ok && data?.paid) {
+          clearInterval(timer);
+          clearCookie(COOKIE_NAME);
+          setPolling(false);
+          onPaidRef.current();
+        }
+      } catch {
+        // 继续轮询
+      }
+    }, POLL_INTERVAL);
+
+    return () => clearInterval(timer);
+  }, []);
+
+  return polling;
+}