name: Test CI Runner Image
on:
  push:
    branches: [test, main]
  workflow_dispatch:

jobs:
  validate:
    runs-on: ubuntu-latest
    container:
      image: 192.168.0.100:8928/hithomelabs/ci-runner:latest
    steps:
      - uses: actions/checkout@v4

      - name: Install JDK (musl-native, Alpine package)
        run: |
          apk add --no-cache openjdk17-jdk
          echo "JAVA_HOME=/usr/lib/jvm/java-17-openjdk" >> "$GITHUB_ENV"

      - name: Verify tools
        run: |
          echo "=== Java (should be JDK 17) ==="
          java -version
          echo "=== Docker ==="
          docker --version
          echo "=== Git ==="
          git --version
          echo "=== Node.js ==="
          node --version

      - name: Gradle build
        run: ./gradlew build

      - name: Test Docker CLI (socket mount)
        run: |
          echo "FROM alpine:latest" > Dockerfile.test
          docker build -t test-image . -f Dockerfile.test
          docker rmi test-image
          rm Dockerfile.test