name: Deploy MyST Documentation

on:
  push:
    branches: [main]
    paths:
      - "tutorials/**"
      - ".github/workflows/deploy-docs.yml"
  workflow_dispatch: # Allow manual trigger

env:
  # For custom domain docs.commontools.dev, we don't need a subfolder
  BASE_URL: ""

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

concurrency:
  group: "pages"
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: "20"
          cache: "npm"
          cache-dependency-path: tutorials/package-lock.json

      - name: Install dependencies
        working-directory: tutorials
        run: npm ci

      - name: Build MyST site
        working-directory: tutorials
        run: npm run build

      - name: Copy CNAME to build directory
        run: cp tutorials/CNAME tutorials/_build/html/CNAME

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: "tutorials/_build/html"

  deploy:
    # Only deploy from main branch
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    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