import type { MetadataRoute } from 'next';
import { routing } from '@/i18n/routing';
import { ROUTES } from '@/constants';
import { SITE_URL } from '@/config';

/** Public, unauthenticated pages only (ui-phase-13) — mirrors `PUBLIC_PATHS` plus the locale root
 * itself (the guest landing an unauthenticated `/` rewrites to). */
const PUBLIC_SITEMAP_PATHS: string[] = ['', ROUTES.LOGIN, ROUTES.TERMS, ROUTES.PRIVACY];

/** @route /sitemap.xml */
export default function sitemap(): MetadataRoute.Sitemap {
  return PUBLIC_SITEMAP_PATHS.map((path) => ({
    url: `${SITE_URL}/${routing.defaultLocale}${path}`,
    alternates: {
      languages: Object.fromEntries(
        routing.locales.map((locale) => [locale, `${SITE_URL}/${locale}${path}`]),
      ),
    },
  }));
}