name: Documentation

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

jobs:
  docs:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v3

      - name: Install Crystal
        uses: crystal-lang/install-crystal@v1

      - name: Install dependencies
        run: shards install --without-development

      - name: Build docs
        run: crystal docs

      - name: Deploy
        if: github.event_name == 'push' && github.ref == 'refs/heads/main'
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./docs
          force_orphan: true