name: Publish Docker image

on:
  pull_request:
  push:
    branches:
      - master

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub
    if: github.event.pull_request.draft == false

    runs-on: ubuntu-latest
    env:
      COMMIT_SHA: ${{ github.sha }}
    strategy:
      matrix:
        config:
          - { tag: "main", dockerfile: ".devops/main.Dockerfile", platform: "linux/amd64,linux/arm64" }
          - { tag: "main-cuda", dockerfile: ".devops/main-cuda.Dockerfile", platform: "linux/amd64" }

    steps:
      - name: Check out the repo
        uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push Docker image (versioned)
        if: github.event_name == 'push'
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: ${{ matrix.config.platforms }}
          tags: "ghcr.io/${{ github.repository }}:${{ matrix.config.tag }}-${{ env.COMMIT_SHA }}"
          file: ${{ matrix.config.dockerfile }}

      - name: Build and push Docker image (tagged)
        uses: docker/build-push-action@v4
        with:
          context: .
          push: ${{ github.event_name == 'push' }}
          platforms: ${{ matrix.config.platforms }}
          tags: "ghcr.io/${{ github.repository }}:${{ matrix.config.tag }}"
          file: ${{ matrix.config.dockerfile }}