import { type NextRequest } from 'next/server';
import { requireAdminApi } from '@/lib/auth/admin-guard';
import { parsePageParam, parsePerPageParam } from '@/lib/admin/validators';
import { getUsersList } from '@/lib/admin/list';
import { jsonNoStore } from '@/lib/admin/response';

export const runtime = 'nodejs';
export const dynamic = 'force-dynamic';

export async function GET(req: NextRequest) {
  const auth = await requireAdminApi();
  if (!auth.ok) return auth.response;

  const url = new URL(req.url);
  const page = parsePageParam(url.searchParams.get('page'), 1);
  const perPage = parsePerPageParam(url.searchParams.get('perPage'), 25, 100);
  const search = url.searchParams.get('search') ?? '';

  try {
    const { users, total } = await getUsersList({ page, perPage, search });
    return jsonNoStore({ users, total, page, perPage });
  } catch (e) {
    console.error('admin users list failed', e);
    return jsonNoStore({ error: 'internal error' }, { status: 500 });
  }
}