name: Deploy Docs

on:
  push:
    branches: [master]
    paths:
      - 'docs/**'
      - '.github/workflows/docs.yml'
  workflow_dispatch:

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
        with:
          fetch-depth: 0

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

      - name: Setup Pages
        uses: actions/configure-pages@v4

      - name: Install dependencies
        run: cd docs && npm ci

      - name: Build with VitePress
        run: cd docs && npm run build

      - name: Prepare deployment
        run: |
          mkdir -p _site/docs
          # Copy static landing page files to root
          cp docs/index.html docs/livestream.html docs/central.svg docs/CNAME _site/ 2>/dev/null || true
          # Copy VitePress build to /docs/
          cp -r docs/.vitepress/dist/* _site/docs/

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

  deploy:
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    needs: build
    runs-on: ubuntu-latest
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4