name: Build and Deploy Demo Site

on:
  push:
    branches: [main]
  workflow_dispatch:

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

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'

      - name: Install site requirements and the kernel extension
        run: |
          python -m pip install -r demo/requirements.txt
          python -m pip install .

      - name: Build the JupyterLite site
        run: jupyter lite build --lite-dir demo --contents content --output-dir dist

      - name: Make the site cross-origin isolated (enables interrupt)
        run: node demo/inject-coi.mjs dist

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./dist

  deploy:
    needs: build
    if: github.ref == 'refs/heads/main'
    permissions:
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4