name: Dart Code Formatter

on:
  pull_request:
  push:
    branches: main

jobs:
  format:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          ref: ${{ github.head_ref }}

      - run: cat .github/workflows/versions.env >> $GITHUB_ENV
      - uses: subosito/flutter-action@v2
        with:
          flutter-version: ${{ env.FLUTTER_VERSION }}
          cache: true

      - name: Auto-format Dart code
        run: |
          dart format lib/ test/
          dart run import_sorter:main --no-comments
          if ! git diff --exit-code; then
            git config user.name "github-actions[bot]"
            git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
            git add .
            git commit -m "generated"
            git push
          fi

      - name: Check for unformatted files
        if: ${{ failure() }}
        run: |
          echo "Code was formatted. Please verify the changes in the PR."