import { SITEMAP_HEADERS, satelliteShardCount, toIndex } from '@/components/meta/sitemap-data';

/** Sitemap index at /sitemap.xml (robots.txt points here): one entry per shard served by /sitemap/[id].xml. Hourly revalidation. */
export const revalidate = 3600;

export async function GET(): Promise<Response> {
  const shards = await satelliteShardCount();
  const ids = Array.from({ length: shards + 1 }, (_, i) => i);
  return new Response(toIndex(ids), { headers: SITEMAP_HEADERS });
}