name: 'CI'

on:
  push:
    branches: [main]

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up NodeJs
        uses: actions/setup-node@v2
        with:
          node-version: 16
      - name: Install dependencies
        run: npm ci
      - name: Linter
        run: npm run lint
      - name: Typecheck
        run: npm run typecheck
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up NodeJs
        uses: actions/setup-node@v2
        with:
          node-version: 16
      - name: Install dependencies
        run: npm ci
      - name: Unit tests
        run: npm run test:unit:ci
  docker:
    runs-on: ubuntu-latest
    needs:
      - lint
      - test
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - uses: actions/setup-node@v2
        with:
          node-version: 16
      - name: Prepare
        id: prep
        run: |
          DOCKER_IMAGE=${{ secrets.DOCKER_USERNAME }}/${GITHUB_REPOSITORY#*/}
          VERSION=$(node -e "console.log(require('./package.json').version);")

          TAGS="${DOCKER_IMAGE}:${VERSION},${DOCKER_IMAGE}:latest"

          # Set output parameters.
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=docker_image::${DOCKER_IMAGE}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@master
        with:
          platforms: all

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@master

      - name: Available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}

      - name: Login to DockerHub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Build
        uses: docker/build-push-action@v2
        with:
          builder: ${{ steps.buildx.outputs.name }}
          context: .
          file: ./Dockerfile
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.prep.outputs.tags }}