name: Build & Publish Backend
on: [push]
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Check out the repo
        uses: actions/checkout@v3

      - uses: https://github.com/dorny/paths-filter@v2
        id: changes
        with:
           filters: |
              backend:
                - 'backend/**'
              frontend:
                - 'frontend/**'

      # Frontend
      - name: "[Frontend] Docker meta"
        if: steps.changes.outputs.frontend == 'true'
        id: frontend-meta
        uses: https://github.com/docker/metadata-action@v4
        with:
          images: git.flokaiser.com/dhbw/cloud-computing-backend
          tags: |
             type=sha,enable=true,priority=100,prefix={{branch}}-,suffix=,format=short
             type=raw,value=latest,enable={{is_default_branch}}

      # Backend
      - name: "[Backend] Docker meta"
        if: steps.changes.outputs.backend == 'true'
        id: backend-meta
        uses: https://github.com/docker/metadata-action@v4
        with:
          images: git.flokaiser.com/dhbw/cloud-computing-backend
          tags: |
             type=sha,enable=true,priority=100,prefix={{branch}}-,suffix=,format=short
             type=raw,value=latest,enable={{is_default_branch}}

      - name: Get get-docker.sh
        run: curl -fsSL https://get.docker.com -o get-docker.sh

      - name: Install docker
        run: sh get-docker.sh
        
      - name: Login to Registry
        uses: docker/login-action@v2
        with:
          registry: git.flokaiser.com
          username: ${{ secrets.REGISTRY_USERNAME }}
          password: ${{ secrets.REGISTRY_TOKEN }}

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

      # Frontend
      - name: "[Frontend] Build and push"
        if: steps.changes.outputs.frontend == 'true'
        uses: docker/build-push-action@v4
        with:
          file: frontend/Dockerfile
          platforms: linux/amd64
          push: true
          tags: ${{ steps.frontend-meta.outputs.tags }}

      # Backend
      - name: "[Backend] Build and push"
        if: steps.changes.outputs.backend == 'true'
        uses: docker/build-push-action@v4
        with:
          file: backend/Dockerfile
          platforms: linux/amd64
          push: true
          tags: ${{ steps.backend-meta.outputs.tags }}