name: Cron - monthlyDigestEmail

on:
  # "Scheduled workflows run on the latest commit on the default or base branch."
  # — https://docs.github.com/en/actions/learn-github-actions/events-that-trigger-workflows#schedule
  schedule:
    # Runs on the 28th, 29th, 30th and 31st of every month (see https://crontab.guru)
    - cron: "59 23 28-31 * *"
jobs:
  cron-monthlyDigestEmail:
    env:
      APP_URL: ${{ secrets.APP_URL }}
      CRON_API_KEY: ${{ secrets.CRON_API_KEY }}
    runs-on: ubuntu-latest
    steps:
      - name: Check if today is the last day of the month
        id: check-last-day
        run: |
          LAST_DAY=$(date -d tomorrow +%d)
          if [ "$LAST_DAY" == "01" ]; then
            echo "::set-output name=is_last_day::true"
          else
            echo "::set-output name=is_last_day::false"
          fi

      - name: cURL request
        if: ${{ env.APP_URL && env.CRON_API_KEY && steps.check-last-day.outputs.is_last_day == 'true' }}
        run: |
          curl ${{ secrets.APP_URL }}/api/cron/monthlyDigestEmail \
            -X POST \
            -H 'content-type: application/json' \
            -H 'authorization: ${{ secrets.CRON_API_KEY }}' \
            --fail