name: Deploy demo to GitHub Pages

# Publishes the static visualization from web/ to GitHub Pages on every push
# to main (and on demand from the Actions tab).  In Pages mode it runs against
# a committed web/events.jsonl recording — see the README for how to capture
# a fresh one.

on:
  push:
    branches: [main]
    paths:
      - "web/**"
      - ".github/workflows/deploy-pages.yml"
  workflow_dispatch:

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

# Allow only one Pages deployment at a time; skip queued ones if a newer
# commit arrives.
concurrency:
  group: pages
  cancel-in-progress: true

jobs:
  deploy:
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Pages
        uses: actions/configure-pages@v5

      - name: Upload web/ as artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: web

      - name: Deploy
        id: deployment
        uses: actions/deploy-pages@v4