name: Build and Publish Docker Images

on:
  push:
    branches:
      - main
    tags:
      - "v*"
  workflow_dispatch:

env:
  REGISTRY: ${{ secrets.REGISTRY_URL }}
  NAMESPACE: ${{ secrets.REGISTRY_NAMESPACE || 'zebra-power' }}

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        service: [backend, frontend]
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

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

      - name: Log in to Docker Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USERNAME }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

      - name: Ensure repository exists
        run: |
          curl -f -X POST \
            -H "Authorization: token ${{ secrets.REGISTRY_PASSWORD }}" \
            -H "Content-Type: application/json" \
            -d '{"name":"zebra-power","private":false,"description":"Zebra Power Docker Images"}' \
            ${{ env.REGISTRY }}/api/v1/user/repos || echo "Repository may already exist"

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ secrets.REGISTRY_USERNAME }}/${{ env.NAMESPACE }}/zebra-${{ matrix.service }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=ref,event=tag
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha,prefix={{branch}}-,suffix=-{{date 'YYYYMMDD-HHmmss'}},enable={{is_default_branch}}

      - name: Build and push Docker image
        id: build
        uses: docker/build-push-action@v5
        with:
          context: ./${{ matrix.service }}
          dockerfile: ./${{ matrix.service }}/Dockerfile
          registry: ${{ env.REGISTRY }}
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          platforms: linux/amd64

      - name: Image digest
        run: echo "Image pushed with digest ${{ steps.build.outputs.digest }}"