name: Docker Image bauen und veröffentlichen

on:
  push:
    tags: ["v*"]
  release:
    types: [published]
  workflow_dispatch: {}

env:
  REGISTRY: git.arnef.de
  IMAGE_NAME: arnef/nidus

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Repository auschecken
        uses: actions/checkout@v4

      - name: QEMU einrichten (für Cross-Platform-Builds)
        uses: docker/setup-qemu-action@v3

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

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

      - name: Metadaten (Tags/Labels) ermitteln
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=sha,prefix=,format=short

      - name: Image bauen und pushen (amd64 + arm64)
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Build-Umgebung aufräumen
        if: always()
        run: |
          docker buildx prune --all --force
          docker system prune --all --force --volumes