name: Docker Image CI

on:
  push:
    branches:
      - "main"

jobs:
  docker:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout code
      uses: actions/checkout@v4

    # Authenticate to the container registry
    - name: Login to Docker Hub
      uses: docker/login-action@v3
      with:
        username: ${{ vars.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_PAT }}

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

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

    # Build and push Docker image with Buildx
    - name: Build and push
      id: build-and-push
      uses: docker/build-push-action@v6
      with:
        sbom: true
        provenance: true
        platforms: linux/arm64,linux/amd64
        tags: graystorm/amcrest2mqtt:latest
        push: true
        cache-from: type=gha
        cache-to: type=gha,mode=max