stack-chan

name: Bundle Stack-chan Firmware

on:
  push:
    branches:
      - develop
      # Temporary migration branch. Remove after all PRs target develop.
      - dev/v1.0
    paths:
      - 'firmware/**'
      - 'web/simulator/**'
      - '.github/actions/setup/action.yml'
      - '.github/workflows/bundle.yml'
  pull_request:
    branches:
      - develop
      # Temporary migration branch. Remove after all PRs target develop.
      - dev/v1.0
      # Allow the stacked PR that targets the WASM build-support branch to run.
      - feat/wasm-stackchan-build
    paths:
      - 'firmware/**'
      - 'web/simulator/**'
      - '.github/actions/setup/action.yml'
      - '.github/workflows/bundle.yml'

permissions:
  contents: read

concurrency:
  group: bundle-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - name: Setup
        uses: ./.github/actions/setup
      - name: Bundle firmware
        working-directory: ./firmware
        run: source "$HOME/.local/share/xs-dev-export.sh" && npm run bundle
      - name: Setup Emscripten for WASM simulator
        uses: mymindstorm/setup-emsdk@v16
        with:
          version: 3.1.2
      - name: Build WASM simulator firmware
        working-directory: ./firmware
        run: source "$HOME/.local/share/xs-dev-export.sh" && npm run build:wasm
      - name: Upload firmware bundle
        uses: actions/upload-artifact@v7
        with:
          name: firmware-bundle
          path: ./firmware/stackchan/tech.moddable.stackchan
      - name: Upload WASM simulator
        uses: actions/upload-artifact@v7
        with:
          name: wasm-simulator
          path: ./web/simulator

  deploy:
    needs: build
    if: github.event_name == 'push' && (github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/dev/v1.0')
    runs-on: ubuntu-latest
    concurrency:
      group: gh-pages-deploy
      cancel-in-progress: false
    permissions:
      contents: write
    steps:
      - name: Checkout Pages branch
        uses: actions/checkout@v6
        with:
          ref: gh-pages
      - name: Download firmware bundle
        uses: actions/download-artifact@v8
        with:
          name: firmware-bundle
          path: ./firmware-bundle
      - name: Download WASM simulator
        uses: actions/download-artifact@v8
        with:
          name: wasm-simulator
          path: ./wasm-simulator
      - name: Update bundle files
        run: |
          if [ -z "$(find ./firmware-bundle -mindepth 1 -print -quit)" ]; then
            echo "Firmware bundle artifact is empty"
            exit 1
          fi
          if [ -z "$(find ./wasm-simulator -mindepth 1 -print -quit)" ]; then
            echo "WASM simulator artifact is empty"
            exit 1
          fi
          rm -rf ./web/flash/tech.moddable.stackchan ./web/simulator
          mkdir -p ./web/flash/tech.moddable.stackchan ./web/simulator
          cp -R ./firmware-bundle/. ./web/flash/tech.moddable.stackchan/
          cp -R ./wasm-simulator/. ./web/simulator/
      - name: Commit bundle update
        run: |
          git config user.name 'GitHub Action'
          git config user.email 'action@github.com'
          git add ./web/flash/tech.moddable.stackchan ./web/simulator
          if git diff --cached --quiet; then
            echo "No bundle changes to deploy"
            exit 0
          fi
          git commit -m "Deploy firmware bundle from ${{ github.sha }}"
          git push origin HEAD:gh-pages