Sitemap

import type { SitemapUrl } from '@repo/utils'

interface SitemapUrl {
  loc: string
  lastmod?: string // ISO 8601 date
  changefreq?: 'always' | 'hourly' | 'daily' | 'weekly' | 'monthly' | 'yearly' | 'never'
  priority?: number // 0.0 to 1.0
}

import { generateSitemap } from '@repo/utils'

function generateSitemap(urls: SitemapUrl[]): string

import { generateSitemap } from '@repo/utils'
import type { SitemapUrl } from '@repo/utils'

const urls: SitemapUrl[] = [
  { loc: 'https://example.com/', priority: 1.0, changefreq: 'daily' },
  { loc: 'https://example.com/about', priority: 0.8 },
  { loc: 'https://example.com/blog', lastmod: '2024-06-15', changefreq: 'weekly' },
]

const xml = generateSitemap(urls)
// Returns formatted XML:
// <?xml version="1.0" encoding="UTF-8"?>
// <urlset xmlns="https://www.sitemaps.org/schemas/sitemap/0.9" ...>
//   <url>
//     <loc>https://example.com/</loc>
//     <changefreq>daily</changefreq>
//     <priority>1.0</priority>
//   </url>
//   ...
// </urlset>

import { getSitemapOnFileBased } from '@repo/utils'

function getSitemapOnFileBased(
  url: URL,
  files: Record<string, () => Promise<unknown>>,
): SitemapUrl[]

import { getSitemapOnFileBased, generateSitemap } from '@repo/utils'

// In src/routes/sitemap.xml/+server.ts
export async function GET({ url }) {
  const pages = import.meta.glob('/src/routes/**/+page.svelte')
  const urls = getSitemapOnFileBased(url, pages)

  // Dynamic routes like /src/routes/blog/[slug]/+page.svelte are excluded
  // Layout groups like /src/routes/(app)/dashboard/+page.svelte become /dashboard

  return new Response(generateSitemap(urls), {
    headers: { 'Content-Type': 'application/xml' },
  })
}

/src/routes/+page.svelte                        -> { loc: 'https://example.com' }
/src/routes/(app)/dashboard/+page.svelte         -> { loc: 'https://example.com/dashboard' }
/src/routes/blog/+page.svelte                    -> { loc: 'https://example.com/blog' }
/src/routes/blog/[slug]/+page.svelte             -> excluded (dynamic route)