name: Build Docker Image for Raspberry Pi

on:
  push:
    branches:
      - main
      - master
      - develop
    tags:
      - 'v*'
  pull_request:
    branches:
      - main
      - master

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2
        with:
          platforms: linux/arm/v6,linux/arm/v7,linux/arm64

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

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: |
            gitea.home-nas-ds.org/${{ github.repository }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Login to Gitea Container Registry
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v2
        with:
          registry: gitea.home-nas-ds.org
          username: ${{ github.actor }}
          password: ${{ secrets.REGISTRY_TOKEN }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile.multiarch
          platforms: linux/arm/v6,linux/arm/v7,linux/arm64
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            BUILD_DATE=${{ github.event.repository.updated_at }}
            VERSION=${{ steps.meta.outputs.version }}
            VCS_REF=${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

      - name: Image digest
        run: echo ${{ steps.meta.outputs.tags }}