name: Cleanup Registry Images

on:
  schedule:
    # Run daily at 01:30 UTC
    - cron: '30 1 * * *'
  workflow_dispatch:
    inputs:
      dry_run:
        description: 'Dry run (check only, no actual deletion)'
        required: false
        default: false
        type: boolean
  pull_request:
    types: [closed]
  delete:
    # Triggered when branches are deleted

concurrency:
  group: "cleanup-registry"
  cancel-in-progress: false

env:
  BUILTIN_REGISTRY: forgejo.ellis.link
  IMAGE_PATH: forgejo.ellis.link/continuwuation/continuwuity

jobs:
  cleanup-pr-images:
    name: Cleanup PR Images
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request' && github.event.action == 'closed'
    permissions:
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Delete PR image
        uses: https://github.com/dataaxiom/ghcr-cleanup-action@v1
        with:
          token: ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}
          owner: continuwuation
          repository: continuwuity
          package: continuwuity
          registry-url: https://${{ env.BUILTIN_REGISTRY }}
          delete-tags: pr-${{ github.event.pull_request.number }}
          dry-run: false

  cleanup-old-commits:
    name: Cleanup Old Commit Images
    runs-on: ubuntu-latest
    if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
    permissions:
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Set dry-run mode
        id: params
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            echo "dry_run=${{ inputs.dry_run }}" >> $GITHUB_OUTPUT
          else
            # Scheduled runs perform actual cleanup
            echo "dry_run=false" >> $GITHUB_OUTPUT
          fi

      - name: Cleanup old SHA commit images
        uses: https://github.com/dataaxiom/ghcr-cleanup-action@v1
        with:
          token: ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}
          owner: continuwuation
          repository: continuwuity
          package: continuwuity
          registry-url: https://${{ env.BUILTIN_REGISTRY }}
          delete-tags: sha-*
          exclude-tags: latest,main,v*.*.*,*.*.*,*-maxperf
          older-than: 30 days
          dry-run: ${{ steps.params.outputs.dry_run }}
          delete-ghost-images: true
          delete-partial-images: true
          delete-orphaned-images: true

  cleanup-branch-images:
    name: Cleanup Deleted Branch Images
    runs-on: ubuntu-latest
    if: github.event_name == 'delete' && github.event.ref_type == 'branch'
    permissions:
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          persist-credentials: false

      - name: Delete branch image
        uses: https://github.com/dataaxiom/ghcr-cleanup-action@v1
        with:
          token: ${{ secrets.BUILTIN_REGISTRY_PASSWORD || secrets.GITHUB_TOKEN }}
          owner: continuwuation
          repository: continuwuity
          package: continuwuity
          registry-url: https://${{ env.BUILTIN_REGISTRY }}
          delete-tags: branch-${{ github.event.ref }}
          dry-run: false