name: Build and publish Docker image

on:
  push:
    branches:
      - dev
      - master
    tags:
      - '*.*.*'
  workflow_dispatch:

env:
  IMAGE_NAME: rocky-dev

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

    permissions:
      contents: read
      packages: write

    steps:
      - name: Get Registry
        id: registry
        run: |
          # Use RUNNER_REGISTRY environment variable
          if [ ! -z "${RUNNER_REGISTRY}" ]; then
            REGISTRY="${RUNNER_REGISTRY}"
          else
            echo "ERROR: RUNNER_REGISTRY environment variable not set"
            echo "Please add RUNNER_REGISTRY to your runner's environment variables"
            exit 1
          fi
          
          echo "registry=${REGISTRY}" >> $GITHUB_OUTPUT
          echo "Using registry: ${REGISTRY}"

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

      - name: Log in to registry
        uses: docker/login-action@v3
        with:
          registry: ${{ steps.registry.outputs.registry }}
          username: ${{ vars.USERNAME }}
          password: ${{ secrets.PASS }}

      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ steps.registry.outputs.registry }}/${{ vars.USERNAME }}/${{ env.IMAGE_NAME }}
          tags: |
            # Only tag with version and latest on tag push
            type=semver,pattern={{version}},enable=${{ startsWith(github.ref, 'refs/tags/') }}
            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/') }}
            # Optionally, tag dev/master builds with branch name (for testing)
            type=ref,event=branch,enable=${{ !startsWith(github.ref, 'refs/tags/') }}

      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max