name: Docs
on:
  push:
    branches:
      - master

jobs:
  deploy:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pages: write
      id-token: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Install latest mdbook
        run: |
          tag=$(curl 'https://api.github.com/repos/rust-lang/mdbook/releases/latest' | jq -r '.tag_name')
          url="https://github.com/rust-lang/mdbook/releases/download/${tag}/mdbook-${tag}-x86_64-unknown-linux-gnu.tar.gz"
          mkdir mdbook
          curl -sSL $url | tar -xz --directory=./mdbook
          echo `pwd`/mdbook >> $GITHUB_PATH
      - name: Build Book
        run: |
          cd docs
          mdbook build
      - name: Check if Pages is enabled
        uses: octokit/request-action@v2.x
        id: check_pages
        continue-on-error: true
        with:
          route: GET /repos/{repo}/pages
          repo: ${{ github.repository }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Setup Pages
        uses: actions/configure-pages@v4
        if: steps.check_pages.outcome == 'success'
      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: 'docs/book'
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4
        if: steps.check_pages.outcome == 'success'