import {getCliClient} from 'sanity/cli'

const client = getCliClient().withConfig({apiVersion: '2024-01-01'})

function toSlug(input: string): string {
  return input
    .normalize('NFD')
    .replace(/[\u0300-\u036f]/g, '') // strip diacritics
    .toLowerCase()
    .replace(/[^a-z0-9\s-]/g, '') // remove non-alphanumeric
    .trim()
    .replace(/[\s-]+/g, '-') // spaces/hyphens → single hyphen
}

async function regenerateSlugs() {
  const releases = await client.fetch<{_id: string; name?: string; albumArtist?: string}[]>(
    `*[_type == "release"]{_id, name, albumArtist}`,
  )

  console.log(`Found ${releases.length} releases`)

  const transaction = client.transaction()
  let count = 0

  for (const release of releases) {
    const source = [release.albumArtist, release.name].filter(Boolean).join(' ')
    if (!source) {
      console.log(`Skipping ${release._id} — no albumArtist or name`)
      continue
    }

    const slug = toSlug(source)
    console.log(`${release._id}: "${source}" → ${slug}`)
    transaction.patch(release._id, (p) => p.set({slug: {_type: 'slug', current: slug}}))
    count++
  }

  if (count === 0) {
    console.log('No documents to update.')
    return
  }

  const result = await transaction.commit()
  console.log(`Done! Updated ${result.documentIds.length} documents.`)
}

regenerateSlugs().catch((err) => {
  console.error(err)
  process.exit(1)
})