name: Docker Images bauen und pushen

on:
  push:
    branches:
      - release
    tags:
      - "v*"

env:
  REGISTRY: git.cynfo.net
  IMAGE_BACKEND: git.cynfo.net/christian/rmm2/backend
  IMAGE_FRONTEND: git.cynfo.net/christian/rmm2/frontend

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

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

      - name: Login in Gitea Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ secrets.REGISTRY_USER }}
          password: ${{ secrets.REGISTRY_PASSWORD }}

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

      - name: Image-Tag bestimmen
        id: meta
        run: |
          if [[ "${{ github.ref }}" == refs/tags/* ]]; then
            TAG="${{ github.ref_name }}"
          else
            TAG="latest"
          fi
          echo "tag=${TAG}" >> $GITHUB_OUTPUT

      - name: Backend bauen und pushen
        uses: docker/build-push-action@v5
        with:
          context: ./backend
          push: true
          tags: |
            ${{ env.IMAGE_BACKEND }}:${{ steps.meta.outputs.tag }}
            ${{ env.IMAGE_BACKEND }}:latest
          cache-from: type=registry,ref=${{ env.IMAGE_BACKEND }}:buildcache
          cache-to: type=registry,ref=${{ env.IMAGE_BACKEND }}:buildcache,mode=max

      - name: Frontend bauen und pushen
        uses: docker/build-push-action@v5
        with:
          context: ./frontend
          push: true
          tags: |
            ${{ env.IMAGE_FRONTEND }}:${{ steps.meta.outputs.tag }}
            ${{ env.IMAGE_FRONTEND }}:latest
          # BACKEND_HOST ist zur Laufzeit nicht bekannt — wird im Compose via Env gesetzt
          # Wer eigene Images braucht: docker compose build
          cache-from: type=registry,ref=${{ env.IMAGE_FRONTEND }}:buildcache
          cache-to: type=registry,ref=${{ env.IMAGE_FRONTEND }}:buildcache,mode=max