export async function POST(req: Request) {
  const ip =
    req.headers.get("x-forwarded-for")?.split(",")[0].trim() ??
    req.headers.get("x-real-ip") ??
    "";

  const headers = new Headers(req.headers);
  headers.set("x-forwarded-for", ip);
  headers.set("x-real-ip", ip);
  headers.delete("host"); // avoid sending your app's Host to the Rybbit backend

  console.log("XFF:", req.headers.get("x-forwarded-for"));
  console.log("XRI:", req.headers.get("x-real-ip"));
  console.log("resolved ip:", ip);
  
  const res = await fetch(`${process.env.NEXT_PUBLIC_RYBBIT_HOST}/api/track`, {
    method: "POST",
    headers,
    body: await req.text(),
  });

  return new Response(await res.text(), {
    status: res.status,
    headers: { "content-type": res.headers.get("content-type") ?? "application/json" },
  });
}