commerce/app/sitemap.ts

import { MetadataRoute } from 'next';

const baseUrl = process.env.NEXT_PUBLIC_VERCEL_URL
  ? `https://${process.env.NEXT_PUBLIC_VERCEL_URL}`
  : 'http://localhost:3000';

export default async function sitemap(): Promise<Promise<Promise<MetadataRoute.Sitemap>>> {
  const routesMap = ['', '/search'].map((route) => ({
    url: `${baseUrl}${route}`,
    lastModified: new Date().toISOString()
  }));

  return [...routesMap];
}