name: Build and Push Docker Image

on:
  push:
    branches:
      - main
      - master
  workflow_dispatch:

env:
  REGISTRY: git.purepixel.ch
  IMAGE: git.purepixel.ch/adminpepe/lageplan

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

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

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE }}
          tags: |
            type=raw,value=latest
            type=sha,prefix=,suffix=,format=short

      - name: Build and push
        id: docker_build
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          # provenance/sbom aus: spart zusätzlichen Attestation-Export
          provenance: false
          sbom: false
          cache-from: type=registry,ref=${{ env.IMAGE }}:cache
          # mode=min statt max: exportiert nur die finalen Schichten → auf langsamem
          # NAS-Speicher spart das ~12 Min Cache-Export. Der teure Rechenaufwand
          # (npm ci, next build) wird ohnehin über BuildKit-Cache-Mounts abgedeckt.
          cache-to: type=registry,ref=${{ env.IMAGE }}:cache,mode=min