name: Java CI

on:
  push:
    branches:
      - "*"
    tags:
      - "*"
  pull_request:
    branches:
      - "*"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: recursive
          fetch-depth: 0 # needed for versioning
      - name: Set up JDK 1.17
        uses: actions/setup-java@v1
        with:
          java-version: 17
      - uses: actions/cache@v2
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: "${{ runner.os }}-bluemap-${{ hashFiles('**/*.gradle*') }}"
          restore-keys: |
            ${{ runner.os }}-bluemap-
      - name: Build with Gradle
        run: ./gradlew clean test build
      - uses: actions/upload-artifact@v2
        with:
          name: artifacts
          path: build/release/*

  docker:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: recursive
          fetch-depth: 0
      - uses: actions/download-artifact@v3
        with:
          name: artifacts
          path: build/release
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      - name: Docker metadata
        id: metadata
        uses: docker/metadata-action@v4
        with:
          images: ghcr.io/${{ github.repository }}
          # Always tagged as the pushed branch (ex. master)
          # For releases: latest, full version and major version (ex. latest, v3.3 and v3)
          tags: |
            type=raw,value={{branch}}
            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/') }}
            type=raw,value={{tag}},enable=${{ startsWith(github.ref, 'refs/tags/') }}
            type=match,pattern=v\d+,group=0,enable=${{ startsWith(github.ref, 'refs/tags/') }}
          flavor: |
            latest=false
      - name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: .
          tags: ${{ steps.metadata.outputs.tags }}
          labels: ${{ steps.metadata.outputs.labels }}
          push: ${{ github.event_name != 'pull_request' }}
          cache-from: type=gha
          cache-to: type=gha,mode=max