name: Deploy web demo

on:
  # We only run this on merges to master
  push:
    branches: ["master"]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

# Grant GITHUB_TOKEN the permissions required to make a Pages deployment
permissions:
  contents: read
  pages:    write # to deploy to Pages
  id-token: write # to verify the deployment originates from an appropriate source

# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
concurrency:
  group: "pages"
  cancel-in-progress: false

env:
  # web_sys_unstable_apis is required to enable the web_sys clipboard API which eframe web uses,
  # as well as by the wasm32-backend of the wgpu crate.
  # https://rustwasm.github.io/wasm-bindgen/api/web_sys/struct.Clipboard.html
  # https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html
  RUSTFLAGS: --cfg=web_sys_unstable_apis -D warnings
  RUSTDOCFLAGS: -D warnings

jobs:
  # Single deploy job since we're just deploying
  deploy:
    name: Deploy web demo

    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}

    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          target: wasm32-unknown-unknown
          toolchain: 1.70.0
          override: true

      - uses: Swatinem/rust-cache@v2
        with:
          prefix-key: "web-demo-"

      - name: "Install wasmopt / binaryen"
        run: |
          sudo apt-get update && sudo apt-get install binaryen

      - run: |
          scripts/build_demo_web.sh --release

      - name: Setup Pages
        uses: actions/configure-pages@v3

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v2
        with:
          path: "docs"

      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v2