name: Build and Deploy Doxygen Docs

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: write

jobs:
  docs:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Doxygen
        run: sudo apt-get install -y doxygen graphviz

      - name: Build Doxygen documentation
        run: doxygen Doxyfile

      - name: Deploy to GitHub Pages
        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./doc/html
          publish_branch: gh-pages