/**
 * Robots.txt Generator
 * 
 * Generates robots.txt for SEO.
 * Next.js will automatically serve this at /robots.txt
 */

import type { MetadataRoute } from 'next'

export default function robots(): MetadataRoute.Robots {
  const baseUrl = process.env.NEXT_PUBLIC_APP_URL || 'https://aispeedrun.vercel.app'
  
  return {
    rules: [
      {
        userAgent: '*',
        allow: '/',
        disallow: [
          '/api/',
          '/_next/',
          '/admin/',
        ],
      },
      {
        userAgent: 'Googlebot',
        allow: '/',
        disallow: [
          '/api/',
          '/_next/',
        ],
      },
    ],
    sitemap: `${baseUrl}/sitemap.xml`,
  }
}