name: Generate Documentation

on:
  push:
    branches:
      - main
    paths:
      - 'src/**'
      - '**.lua'
  pull_request:
    branches:
      - main
    paths:
      - 'src/**'
      - '**.lua'

jobs:
  docs:
    runs-on: ubuntu-latest

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

    - name: Install Lua and LDoc
      run: |
        sudo apt-get update
        sudo apt-get install -y lua5.3 \
                              lua5.3-dev \
                              liblua5.3-dev \
                              luarocks \
                              build-essential \
                              libreadline-dev
        
        sudo luarocks --lua-version=5.3 install ldoc

        ldoc --version || exit 1
        
    - name: Generate Documentation
      run: |
        echo "Available Lua-Files:"
        find src -name "*.lua" -type f
        
        ldoc . --verbose
        
        if [ ! -d "docs" ]; then
          echo "Documentation generation failed"
          exit 1
        fi

    - name: Commit documentation
      if: success()
      run: |
        git config --global user.name 'github-actions[bot]'
        git config --global user.email 'github-actions[bot]@users.noreply.github.com'
        git add docs/
        git commit -m 'Update documentation'
        git push
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}