name: Docker Image bauen & veröffentlichen

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

env:
  # Host der Gitea Container Registry (bei Bedarf als Repo-Variable REGISTRY überschreiben)
  REGISTRY: ${{ vars.REGISTRY || 'git.hexahost.dev' }}
  IMAGE_NAME: ${{ github.repository }}

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

    steps:
      - name: Repository auschecken
        uses: actions/checkout@v4

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

      - name: An Gitea Container Registry anmelden
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

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

      - name: Image bauen & pushen
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}