name: Ryd op i Forgejo Container Registry

on:
  schedule:
    - cron: '0 0 * * 0' # Kører hver søndag ved midnat
  workflow_dispatch: # Gør det muligt at køre den manuelt

jobs:
  delete-old-images:
    runs-on: almalinux-10
    steps:
      - name: Slet gamle versioner
        run: |
          REGISTRY="forge.pc-rytteren.dk"
          OWNER="${{ github.repository_owner }}"
          IMAGE="my-ostree-os"
          MIN_KEEP=50
          TOKEN="${{ secrets.PACKAGE_TOKEN }}"

          # Hent alle tags for imaget via Forgejo API
          TAGS=$(curl -s -H "Authorization: token ${TOKEN}" \
            "https://${REGISTRY}/api/v1/packages/${OWNER}/container/${IMAGE}/tags" \
            | tr ',' '\n' | grep '"name"' | sed 's/.*"name":"\([^"]*\)".*/\1/' | sort -r)

          TOTAL=$(echo "$TAGS" | wc -l)
          echo "Fundet ${TOTAL} tags totalt, beholder ${MIN_KEEP}"

          if [ "$TOTAL" -le "$MIN_KEEP" ]; then
            echo "Ingen tags at slette"
            exit 0
          fi

          # Slet tags ud over MIN_KEEP (ældste først)
          TO_DELETE=$(echo "$TAGS" | tail -n +$((MIN_KEEP + 1)))
          for TAG in $TO_DELETE; do
            echo "Sletter tag: ${TAG}"
            curl -s -X DELETE -H "Authorization: token ${TOKEN}" \
              "https://${REGISTRY}/api/v1/packages/${OWNER}/container/${IMAGE}/${TAG}"
          done