import type { APIRoute } from 'astro'
import { site } from '@shared/lib/site'

export const prerender = true

export const GET: APIRoute = () => {
  const isProduction = (process.env.NODE_ENV || 'production') === 'production'
  const sitemapUrl = `${isProduction ? site.docsUrl : ''}/sitemap.xml`
  const body = `Sitemap: ${sitemapUrl}

User-agent: *
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Disallow:${isProduction ? '' : ' /'}
`

  return new Response(body, {
    headers: {
      'Content-Type': 'text/plain; charset=utf-8',
    },
  })
}