name: cleanup
on:
  schedule:
    - cron: '0 6 * * 1'  # Mondays 06:00 UTC (offset by +1h from firmware's cleanup)
  workflow_dispatch:

permissions:
  contents: write
  actions: write

concurrency:
  group: gh-pages-manifest
  cancel-in-progress: false

jobs:
  prune:
    name: Prune old nightly releases
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Delete releases beyond the 90 newest
        id: prune
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          to_delete=$(gh release list --limit 200 --json tagName,createdAt \
            | jq -r '[ .[] | select(.tagName | test("^nightly-[0-9]{8}-[0-9a-f]{7}$")) ]
                     | sort_by(.createdAt) | reverse | .[90:] | .[].tagName')

          if [ -z "$to_delete" ]; then
            echo "Nothing to delete; <=90 dated nightlies present."
            echo "pruned=false" >> "$GITHUB_OUTPUT"
            exit 0
          fi

          echo "$to_delete" | while read -r tag; do
            [ -z "$tag" ] && continue
            echo "Deleting $tag"
            gh release delete "$tag" --cleanup-tag --yes
          done
          echo "pruned=true" >> "$GITHUB_OUTPUT"

      - name: Refresh manifest
        if: steps.prune.outputs.pruned == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: gh workflow run manifest.yml