name: Nightly Release

on:
  schedule:
    - cron: '0 0 * * *'  # This runs at midnight UTC every day
  workflow_dispatch:   # This allows the workflow to be triggered manually

jobs:
  check-commits:
    runs-on: ubuntu-latest
    outputs:
      has_new_commits: ${{ steps.check-for-commits.outputs.has_new_commits }}
    steps:
      - name: Check out the repository
        uses: actions/checkout@v4.1.7

      - name: Get the date of the last run
        id: last-run
        run: echo "DATE=$(date -u -d '1 day ago' +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_ENV

      - name: Check for new commits since the last run
        id: check-for-commits
        run: |
          last_run_date=$(echo "${{ env.DATE }}" | xargs -I {} date -u -d {} +'%Y-%m-%dT%H:%M:%SZ')
          new_commits=$(git log --since="$last_run_date" --oneline)
          if [ -n "$new_commits" ]; then
            echo "::set-output name=has_new_commits::true"
          else
            echo "::set-output name=has_new_commits::false"
          fi

  release:
    runs-on: ubuntu-latest
    needs: check-commits
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - name: Check out the repository
        uses: actions/checkout@v4.1.7

      - name: Delete existing nightly release
        if: needs.check-commits.outputs.has_new_commits == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          release_id=$(curl -sSf -H "Authorization: Bearer $GITHUB_TOKEN" "https://api.github.com/repos/${GITHUB_REPOSITORY}/releases/tags/nightly" | jq -r '.id')
          if [ -n "$release_id" ]; then
            curl -sSf \
              -H "Authorization: Bearer $GITHUB_TOKEN" \
              -X DELETE \
              "https://api.github.com/repos/${GITHUB_REPOSITORY}/releases/${release_id}"
          fi

      - name: Create new release
        if: needs.check-commits.outputs.has_new_commits == 'true'
        uses: actions/create-release@v1.1.4
        with:
          tag_name: nightly
          release_name: Nightly Build
          draft: false
          prerelease: true
          body: "This is a Nightly build"

      - name: No new commits
        if: needs.check-commits.outputs.has_new_commits == 'false'
        run: echo "No new commits found."