remove-preview-domain.yml

name: Unassign preview-domain
on:
  # Trigger when a pull request is closed
  pull_request:
    types: [closed]

permissions:
  contents: read

jobs:
  unassign-preview-domain:
    runs-on: ubuntu-latest
    steps:
      - name: Prepare domain
        id: prepare
        uses: actions/github-script@v7.0.1
        with:
          script: |
            const subdomain = `${{ github.head_ref }}`
              .toLowerCase()
              .slice(0, 32)
              .replace(/[^a-z0-9-]/g, '-')
              .replace(/^-+|-+$/g, '')
              .replace(/-{2,}/g, '-')

            const domain = `${subdomain}.${{ vars.PREVIEW_DOMAIN }}`
              .toLowerCase()
              .replaceAll("_","-")
            core.setOutput('domain', domain)

      - name: Unssign preview-domain
        run: |
          curl -sX DELETE "https://vercel.com/api/v10/projects/${{ secrets.VERCEL_PROJECT_ID }}/domains/${{ steps.prepare.outputs.domain }}?teamId=${{ secrets.VERCEL_TEAM_ID }}" \
            -H "Authorization: Bearer ${{ secrets.VERCEL_BEARER_TOKEN }}" \
            -H "Content-Type: application/json"