name: Generate Doxygen Documentation

on:
  push:
    branches: [master]
  workflow_dispatch:

permissions:
  contents: write
  pages: write
  id-token: write

jobs:
  generate-docs:
    runs-on: ubuntu-latest

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

      - name: Install Doxygen and Graphviz
        run: |
          sudo apt-get update
          sudo apt-get install -y doxygen graphviz

      - name: Create and Configure Doxyfile
        run: |
          doxygen -g
          
          # Update Doxyfile to apply the Doxygen Awesome theme
          echo "PROJECT_NAME = fbgl" >> Doxyfile
          echo "PROJECT_NUMBER = 0.1.0" >> Doxyfile
          echo "OUTPUT_DIRECTORY = docs" >> Doxyfile
          echo "INPUT = fbgl.h README.md" >> Doxyfile
          echo "HTML_OUTPUT = html" >> Doxyfile
          echo "USE_MDFILE_AS_MAINPAGE = README.md" >> Doxyfile
          echo "GENERATE_TREEVIEW = YES" >> Doxyfile
          echo "FULL_SIDEBAR = NO" >> Doxyfile
          echo "HTML_COLORSTYLE = LIGHT" >> Doxyfile
          
          # Override default Doxygen CSS with Awesome theme
          echo HTML_EXTRA_STYLESHEET  = https://cdn.jsdelivr.net/gh/jothepro/doxygen-awesome-css@v2.3.4/doxygen-awesome.css https://cdn.jsdelivr.net/gh/jothepro/doxygen-awesome-css@v2.3.4/doxygen-awesome-darkmode-toggle.js" >> Doxyfile
          
          # Disable the default Doxygen stylesheet
          echo "DISABLE_INDEX = NO" >> Doxyfile
          echo "HTML_DYNAMIC_SECTIONS = YES" >> Doxyfile

      - name: Generate Documentation
        run: doxygen Doxyfile

      - name: Deploy to GitHub Pages
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_branch: gh-pages
          publish_dir: docs/html
          force_orphan: true