name: docker publish

permissions:
  contents: read

on:
  workflow_dispatch:
  push:
    tags:
      - 'v*'

env:
  REGISTRY: ghcr.io
  IMAGE_NAME_FRONTEND: ${{ github.repository }}-frontend
  IMAGE_NAME_BACKEND: ${{ github.repository }}-backend
  IMAGE_NAME_COMBINED: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-24.04
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Log in to the Container registry
        uses: docker/login-action@v4.2.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for frontend Docker image
        id: meta_frontend
        uses: docker/metadata-action@v6
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_FRONTEND }}

      - name: Extract metadata (tags, labels) for backend Docker image
        id: meta_backend
        uses: docker/metadata-action@v6
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_BACKEND }}

      - name: Extract metadata (tags, labels) for combined Docker image
        id: meta_combined
        uses: docker/metadata-action@v6
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_COMBINED }}

      - name: Build and push frontend Docker image
        uses: docker/build-push-action@v7.2.0
        with:
          context: frontend
          push: true
          file: frontend/Dockerfile
          tags: ${{ steps.meta_frontend.outputs.tags }}
          labels: ${{ steps.meta_frontend.outputs.labels }}
          platforms: linux/amd64,linux/arm64/v8

      - name: Build and push backend Docker image
        uses: docker/build-push-action@v7.2.0
        with:
          context: backend
          push: true
          file: backend/Dockerfile
          tags: ${{ steps.meta_backend.outputs.tags }}
          labels: ${{ steps.meta_backend.outputs.labels }}
          platforms: linux/amd64,linux/arm64/v8

      - name: Build and push combined Docker image
        uses: docker/build-push-action@v7.2.0
        with:
          context: ./
          push: true
          file: Dockerfile
          tags: ${{ steps.meta_combined.outputs.tags }}
          labels: ${{ steps.meta_combined.outputs.labels }}
          platforms: linux/amd64,linux/arm64/v8