import { NextResponse } from "next/server";
import type { NextRequest } from "next/server";

const disabled = () =>
  NextResponse.json(
    {
      error:
        "UploadThing is not configured. Add UPLOADTHING_SECRET to .env or use STORAGE_PROVIDER=local.",
    },
    { status: 503 }
  );

// Lazily resolve the real handlers only when the secret is present.
// This prevents the UploadThing SDK from throwing at module-load time
// when the env var is missing (e.g. STORAGE_PROVIDER=local).
async function getHandlers() {
  if (!process.env.UPLOADTHING_SECRET) return null;
  const { createRouteHandler } = await import("uploadthing/next");
  const { uploadRouter } = await import("@/lib/uploadthing");
  return createRouteHandler({ router: uploadRouter });
}

export async function GET(req: NextRequest) {
  const h = await getHandlers();
  return h ? h.GET(req) : disabled();
}

export async function POST(req: NextRequest) {
  const h = await getHandlers();
  return h ? h.POST(req) : disabled();
}