name: Deploy Static Site

# Single source of truth for the gh-pages branch (served at
# diagrams.mingrammer.com). Builds BOTH the Docusaurus docs and the
# playground, assembles them into one tree (docs at the root, playground
# under /playground/), and deploys the whole thing. Because everything is
# rebuilt and published together, the docs and the playground can never
# overwrite each other — this replaces the old manual `website/publish.sh`
# and the separate playground deploy.
#
# Safety: the deploy step only runs if every build step succeeds, so a failed
# build leaves the live gh-pages branch untouched.

on:
  push:
    branches: [master]
    paths:
      - "website/**"
      - "playground/**"
      - "diagrams/**"
      - "resources/**"
      - ".github/workflows/deploy-site.yml"
  workflow_dispatch:

permissions:
  contents: write

concurrency:
  group: deploy-site
  cancel-in-progress: true

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with:
          node-version: "20"
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      # --- Docs (Docusaurus v1) -> website/build/diagrams/ (includes CNAME) ---
      - name: Build docs
        working-directory: website
        env:
          # Docusaurus 1.x uses a legacy webpack/OpenSSL path that needs this
          # on Node 17+.
          NODE_OPTIONS: --openssl-legacy-provider
        run: |
          npm install --no-audit --no-fund
          npm run build

      # --- Playground (Pyodide assets + Vite) -> playground/dist/ ---
      - name: Install diagrams (for asset generation)
        run: pip install .
      - name: Build playground
        run: |
          cd playground && npm ci && cd ..
          python3 playground/scripts/gen_catalog.py --repo-root . --out playground/public
          cd playground && npm run build

      # --- Assemble the combined site ---
      - name: Assemble site
        run: |
          rm -rf _site
          cp -a website/build/diagrams _site
          mkdir -p _site/playground
          cp -a playground/dist/. _site/playground/
          test -f _site/CNAME || echo "diagrams.mingrammer.com" > _site/CNAME

      - name: Deploy to gh-pages
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: _site
          force_orphan: true