import type { MetadataRoute } from 'next';
import { siteUrl } from '#web-runtime/lib/site-url';

export default function robots(): MetadataRoute.Robots {
  const origin = siteUrl();

  return {
    rules: {
      userAgent: '*',
      allow: '/',
      // Preview URLs render unpublished drafts behind a signed token; they must never be indexed.
      // The page also sends `noindex`, this just saves crawlers the fetch.
      disallow: '/*/preview'
    },
    sitemap: new URL('/sitemap.xml', origin).href
  };
}