name: "[PR] Cleanup Docker preview image"

on:
  pull_request:
    types: [closed]
    branches:
      - dev

permissions:
  packages: write

env:
  REGISTRY: ghcr.io
  IMAGE_TAG: homarr-test-pr-${{ github.event.number }}

jobs:
  delete-image:
    name: Delete PR preview image from GHCR
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Delete package version
        uses: actions/github-script@v8
        with:
          script: |
            const packageName = 'homarr';
            const org = context.repo.owner;
            const tag = process.env.IMAGE_TAG;

            const versions = await github.paginate(
              github.rest.packages.getAllPackageVersionsForPackageOwnedByOrg,
              {
                package_type: 'container',
                package_name: packageName,
                org,
                per_page: 100,
              }
            );

            const target = versions.find(v =>
              v.metadata?.container?.tags?.includes(tag)
            );

            if (!target) {
              console.log(`No package version found with tag "${tag}". Nothing to delete.`);
              return;
            }

            console.log(`Deleting package version ${target.id} (tag: ${tag})`);

            await github.rest.packages.deletePackageVersionForOrg({
              package_type: 'container',
              package_name: packageName,
              org,
              package_version_id: target.id,
            });

            console.log(`Successfully deleted package version ${target.id}`);