name: monitor-sync
on:
  schedule:
    - cron: "0 22 * * *"
  workflow_dispatch: {}
jobs:
  monitor-sync:
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - uses: actions/checkout@v4
      - run: |
          git fetch --prune --unshallow --tags
          latest_commit=$(git log -1 --format="%at" | xargs -I{} date -d @{} "+%Y.%m.%d")
          cur=$(date +"%Y.%m.%d")

          if [ "$latest_commit" != "$cur" ]; then
            >&2 echo "Warning: No repository sync for one or more days"
            exit 101
          fi
          exit 0
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          REPOSITORY: ${{ github.repository }}
          BRANCH_NAME: ${{ github.ref_name }}