name: Book

on:
  push:
    branches:
      - master
  pull_request:
    paths:
      - "book/**"
      - ".github/workflows/book.yml"
  merge_group:

jobs:
  book:
    name: Book
    runs-on: ubuntu-latest
    env:
      MDBOOK_VERSION: "0.4.40"
      MDBOOK_LINKCHECK_VERSION: "0.7.7"
      MDBOOK_MERMAID_VERSION: "0.13.0"
    steps:
      - uses: actions/checkout@v4
      - name: Install mdbook
        run: |
          curl -L https://github.com/rust-lang/mdBook/releases/download/v$MDBOOK_VERSION/mdbook-v$MDBOOK_VERSION-x86_64-unknown-linux-gnu.tar.gz | tar xz -C ~/.cargo/bin
          curl -L https://github.com/badboy/mdbook-mermaid/releases/download/v$MDBOOK_MERMAID_VERSION/mdbook-mermaid-v$MDBOOK_MERMAID_VERSION-x86_64-unknown-linux-gnu.tar.gz | tar xz -C ~/.cargo/bin
          curl -L https://github.com/Michael-F-Bryan/mdbook-linkcheck/releases/download/v$MDBOOK_LINKCHECK_VERSION/mdbook-linkcheck.x86_64-unknown-linux-gnu.zip -O
          unzip mdbook-linkcheck.x86_64-unknown-linux-gnu.zip -d ~/.cargo/bin
          chmod +x ~/.cargo/bin/mdbook-linkcheck
      - name: Build
        run: mdbook build
        working-directory: book
      - uses: actions/upload-artifact@v4
        with:
          name: book
          path: book/book/html

  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    needs: book
    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
    steps:
      - uses: actions/download-artifact@v4
        with:
          name: book
      - uses: actions/configure-pages@v5
      - uses: actions/upload-pages-artifact@v3
        with:
          path: .
      - uses: actions/deploy-pages@v4