name: Docker
on:
  push:
    branches: [ main, sandbox ]
    # Publish semver tags as releases.
    tags: [ 'v*.*.*' ]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  docker:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
#      - name: "Populate frontend version information"
#        run: "cd webapp/frontend && ./git.version.sh"
#      - name: "Generate frontend & version information"
#        uses: addnab/docker-run-action@v3
#        with:
#          image: node:lts
#          options: -v ${{ github.workspace }}:/work
#          run: |
#            cd /work
#            make binary-frontend && echo "print contents of /work/dist" && ls -alt /work/dist
#      - name: Set up QEMU
#        uses: docker/setup-qemu-action@v2
#        with:
#          platforms: 'arm64,arm'
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v4
        with:
          tags: |
            type=ref,enable=true,event=branch
            type=ref,enable=true,event=tag
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        uses: docker/build-push-action@v3
        with:
#          platforms: linux/amd64,linux/arm64
          context: .
          file: Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
#          cache-from: type=gha
#          cache-to: type=gha,mode=max