import { NextRequest, NextResponse } from "next/server";
import { getApiUrlFromRequest, getPaymentConfig } from "@/config/services.config";
import { queryXorPayOrderStatus } from "@/app/lib/xorpayStatus";
import { queryZPayOrderStatus } from "@/app/lib/zpayStatus";

function resolvePayApiUrl(request: NextRequest): string {
  const config = getPaymentConfig();
  const hostHeader =
    request.headers.get("host") || request.headers.get("x-forwarded-host");
  return (getApiUrlFromRequest(hostHeader) || config.apiUrl).replace(/\/$/, "");
}

/**
 * 支付状态查询：salonapi 优先，失败时直接向 zpay/xorpay 查询兜底
 * 参考 nomadvip，保证本地无回调时也能检测到支付
 */
export async function GET(request: NextRequest) {
  const orderId = request.nextUrl.searchParams.get("order_id");
  if (!orderId) {
    return NextResponse.json(
      { ok: false, error: "missing order_id" },
      { status: 400 }
    );
  }

  const hostHeader =
    request.headers.get("host") || request.headers.get("x-forwarded-host");
  const apiUrl = resolvePayApiUrl(request);
  const salonUrl = `${apiUrl}/salon/order_status?order_id=${encodeURIComponent(orderId)}`;

  // 并行查询 salonapi、xorpay、zpay，任一返回 paid 即立即返回，避免串行阻塞
  const salonPaid = (async () => {
    try {
      const controller = new AbortController();
      const timeout = setTimeout(() => controller.abort(), 3000);
      const res = await fetch(salonUrl, {
        cache: "no-store",
        signal: controller.signal,
      }).finally(() => clearTimeout(timeout));
      const data = await res.json().catch(() => ({}));
      return !!data?.paid;
    } catch (error) {
      console.warn(
        "[pay/status] salonapi order_id=%s url=%s error=%s",
        orderId,
        salonUrl,
        error instanceof Error ? error.message : String(error)
      );
      return false;
    }
  })();

  const xorpayPaid = queryXorPayOrderStatus(orderId, 5000).then((r) => r?.paid ?? false);
  const zpayPaid = queryZPayOrderStatus(orderId, 5000).then((r) => r?.paid ?? false);

  const [salon, xorpay, zpay] = await Promise.all([salonPaid, xorpayPaid, zpayPaid]);
  if (salon || xorpay || zpay) {
    return NextResponse.json({ ok: true, paid: true });
  }
  return NextResponse.json({ ok: true, paid: false });
}