name: Code Formatting Check

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

permissions:
  contents: write

jobs:
  format-check:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Set up Python
      uses: actions/setup-python@v2
      with:
        python-version: '3.x'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install black isort

    - name: Run isort
      run: |
        isort .

    - name: Run black
      run: |
        black --line-length=120 .

    - name: Configure Git
      run: |
        git config user.name "GitHub Actions"
        git config user.email "actions@github.com"

    - name: Check if any files were modified
      run: |
        git diff --exit-code || git commit -am "Auto-format code with isort and black"

    - name: Pull latest changes
      run: |
        if [ "${{ github.event_name }}" = "pull_request" ]; then
          git pull --no-rebase origin ${{ github.event.pull_request.head.ref }}
        else
          git pull --no-rebase origin main
        fi

    - name: Push changes
      if: success()
      run: |
        if [ "${{ github.event_name }}" = "pull_request" ]; then
          git push origin HEAD:${{ github.event.pull_request.head.ref }};
        else
          git push origin HEAD:main;
        fi