on:
  workflow_dispatch:
  schedule:
    - cron: "30 3 * * *"

jobs:
  cleanup-workflow-runs:
    runs-on: docker
    steps:
      - name: Install Packages
        run: apt-get update && apt-get install -y curl jq

      - name: Delete workflow runs older than 14 days
        env:
          TOKEN: ${{ forgejo.token }}
          API: ${{ forgejo.api_url }}
          REPO: ${{ forgejo.repository }}
          CURRENT_RUN_ID: ${{ forgejo.run_id }}
        run: |
          set -eu

          CUTOFF="$(date -u -d "14 days ago" +"%Y-%m-%dT%H:%M:%SZ")"
          PAGE=1
          DELETE_IDS=delete-workflow-runs.txt

          : > "$DELETE_IDS"

          while :; do
            curl -fsS \
              -H "Authorization: token $TOKEN" \
              "$API/repos/$REPO/actions/runs?page=$PAGE&limit=50" \
              -o runs.json

            COUNT="$(jq 'if type == "array" then length else (.workflow_runs // []) | length end' runs.json)"
            test "$COUNT" -gt 0 || break

            jq -r \
              --arg cutoff "$CUTOFF" \
              --arg current "$CURRENT_RUN_ID" \
              'if type == "array" then . else (.workflow_runs // []) end
                | .[]
                | select(type == "object")
                | select((.id | tostring) != $current)
                | select((.status // .conclusion) as $status | ["success", "failure", "cancelled", "skipped", "succeeded", "failed"] | index($status))
                | select((.created // .created_at) < $cutoff)
                | .id' runs.json \
              >> "$DELETE_IDS"

            PAGE="$((PAGE + 1))"
          done

          while IFS= read -r run_id; do
            test -n "$run_id" || continue
            echo "Deleting workflow run $run_id"
            curl -fsS -X DELETE \
              -H "Authorization: token $TOKEN" \
              "$API/repos/$REPO/actions/runs/$run_id"
          done < "$DELETE_IDS"