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

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

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 url = `${apiUrl}/digital/order_status?order_id=${encodeURIComponent(orderId)}`;
  console.log("[pay/status] request order_id=%s host=%s url=%s", orderId, hostHeader, url);

  try {
    const controller = new AbortController();
    const timeout = setTimeout(() => controller.abort(), 3000);
    const res = await fetch(url, {
      cache: "no-store",
      signal: controller.signal,
    }).finally(() => clearTimeout(timeout));
    const data = await res.json().catch(() => ({}));
    const paid = !!data?.paid;
    console.log(
      "[pay/status] result order_id=%s paid=%s status=%s",
      orderId,
      paid,
      res.status
    );
    if (paid) {
      return NextResponse.json({ ok: true, paid: true });
    }
  } catch (error) {
    console.log(
      "[pay/status] error order_id=%s error=%s",
      orderId,
      error instanceof Error ? error.message : String(error)
    );
  }

  const xorpay = await queryXorPayOrderStatus(orderId, 5000);
  console.log(
    "[pay/status] xorpay fallback order_id=%s paid=%s status=%s error=%s url=%s",
    orderId,
    !!xorpay?.paid,
    xorpay?.status || "",
    xorpay?.error || "",
    xorpay?.url || ""
  );
  if (xorpay?.paid) {
    return NextResponse.json({ ok: true, paid: true });
  }

  const zpay = await queryZPayOrderStatus(orderId, 5000);
  console.log(
    "[pay/status] zpay fallback order_id=%s paid=%s status=%s error=%s url=%s",
    orderId,
    !!zpay?.paid,
    zpay?.status || "",
    zpay?.error || "",
    zpay?.url || ""
  );
  if (zpay?.paid) {
    return NextResponse.json({ ok: true, paid: true });
  }

  return NextResponse.json({ ok: true, paid: false });
}