name: Cleanup old nightly docker images

on:
  schedule:
    - cron: '10 0 * * *'
  workflow_dispatch:


jobs:
  delete-package-versions:
    name: Cleanup old nightly docker images
    runs-on: ubuntu-latest
    steps:
      - name: Get list of all docker image versions in registry
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh api --paginate -X GET "/orgs/Kozea/packages/container/Radicale/versions" -F package_type=container -F per_page=200 > data.json
          
      - name: Delete each nightly image older than cutoff date
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          cutoff_date=$(date --date="30 days ago" --iso-8601)
          echo "Cutoff date is: $cutoff_date"
          
          # Loop through each nightly image version (tag) older than the cutoff date
          jq --arg cutoff_date "$cutoff_date" -r '.[] | select((.metadata.container.tags | any(. | contains("nightly"))) and (.created_at < $cutoff_date)) | [.metadata.container.tags[], .id] | @tsv' data.json | while IFS=$'\t' read -r tag nightly_image_id ; do
            echo "Tag - $tag"

            # Because of multi-platform, manifest for each tag would contain more than 1 image. Loop through all
            all_digests=$(docker manifest inspect "ghcr.io/kozea/radicale:${tag}" | jq -r 'if .manifests then .manifests[]?.digest else empty end')
            for digest in $all_digests; do
              image_id=$(jq -r --arg digest "$digest" '.[] | select(.name == $digest) | .id' data.json)
              echo "Deleting $image_id"
              gh api -X DELETE "/orgs/Kozea/packages/container/Radicale/versions/$image_id"
            done
            # Now that all dependents are deleted, delete this tag
            echo "Deleting $tag with ID: $nightly_image_id"
            gh api -X DELETE "/orgs/Kozea/packages/container/Radicale/versions/$nightly_image_id"
          done