name: Build and Push Multi-Arch Docker Image

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ github.sha }}
            ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest