/**
 * IndexNow key file — GET /indexnow-key.txt
 *
 * Brainerce's SEO Autopilot pings IndexNow (instant search-engine indexing)
 * whenever a blog post publishes. The ping includes
 * `keyLocation: https://<your-domain>/indexnow-key.txt`, and search engines
 * verify ownership by fetching this file and matching the key.
 *
 * The key comes from `getStoreInfo().seo.indexNowKey` — it is NOT a secret
 * (the file is public by protocol design). Returns 404 until the platform
 * generates a key for this sales channel, which is harmless.
 */
import { getServerClient } from '@/core/lib/brainerce.server';

export const revalidate = 3600;

export async function GET() {
  const client = await getServerClient();
  const info = await client.getStoreInfo().catch(() => null);
  const key = info?.seo?.indexNowKey;
  if (!key) return new Response(null, { status: 404 });
  return new Response(key, {
    headers: { 'Content-Type': 'text/plain; charset=utf-8' },
  });
}