name: Build documentation

on:
  push:
    branches:
      - main
  workflow_dispatch:

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

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Install python
        uses: actions/setup-python@v4
        with:
          python-version: 3.x
      - name: Setup cache
        uses: actions/cache@v2
        with:
          key: ${{ github.ref }}
          path: .cache
      - name: Setup dependencies
        run: pip install -r docs/requirements.txt
      - name: Build docs
        run: mkdocs build --strict
      - name: Upload artifact
        uses: actions/upload-pages-artifact@v1
        with:
          path: ./site

  deploy:
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4