name: Java Maven Build, Test, and Publish

on: 
  push:
    branches:
      - feature*
      - develop
      - '*-image-auto-publish'
    tags: [ 'v*.*.*' ]

env:
  # Use docker.io for Docker Hub if empty
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  #IMAGE_NAME: ${{ github.repository }}
  IMAGE_NAME: ${{ github.repository_owner }}/dataone-index-worker

jobs:
  maven-build:
    name: Maven Build and Test
    runs-on: ubuntu-latest
    outputs:
      version: ${{ steps.get_version.outputs.version }}
    steps:
      - uses: actions/checkout@v3
      - name: Set up JDK
        uses: actions/setup-java@v3
        with:
          java-version: '17'
          distribution: 'temurin'
          cache: 'maven'

      - name: Extract Maven project version
        run: echo "version="$(mvn -q -Dexec.executable=echo -Dexec.args='${project.version}' --non-recursive exec:exec) >> $GITHUB_OUTPUT
        id: get_version
      #- name: Show extracted Maven project version
        #run: echo "Version from pom: " ${{ steps.get_version.outputs.version }}

      - name: Build and Test
        run: mvn --batch-mode --update-snapshots test
      - name: Package
        run: mvn --batch-mode --update-snapshots -DskipTests=true package
      - uses: actions/cache@v3
        with:
          path: .
          key: builddir-${{ github.run_id }}

  docker-publish:
    name: Docker Build and Publish
    if: github.ref_name == 'develop' || github.ref_name == 'v*.*.*'
    needs: maven-build
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - uses: actions/cache@v3
        with:
          path: .
          key: builddir-${{ github.run_id }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
            
      # Login against a Docker registry except on PR
      # https://github.com/docker/login-action
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      # Extract metadata (tags, labels) for Docker
      # https://github.com/docker/metadata-action
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

      # Build and push Docker image with Buildx (don't push on PR)
      # https://github.com/docker/build-push-action
      - name: Build and push Docker image
        uses: docker/build-push-action@v3
        with:
          context: .
          file: docker/Dockerfile
          build-args: TAG=${{needs.maven-build.outputs.version}}
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}