name: CI/CD
on:
  push:
    branches:
      - dev
      - main
  pull_request:
    branches:
      - main
env:
  JAVA_VERSION: "21"
jobs:
  backend-unit-tests:
    name: Backend Unit Tests
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: backend
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up JDK ${{ env.JAVA_VERSION }}
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: ${{ env.JAVA_VERSION }}
      - name: Make Gradle wrapper executable
        run: chmod +x gradlew
      - name: Run unit tests
        run: ./gradlew test
  deploy:
    name: Deploy
    needs: backend-unit-tests
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up JDK ${{ env.JAVA_VERSION }}
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: ${{ env.JAVA_VERSION }}
      - name: Build boot jar
        working-directory: backend
        run: |
          chmod +x gradlew
          ./gradlew bootJar
      - name: Stage jar for Docker
        working-directory: backend
        run: |
          BOOT_JAR=$(find build/libs -name "*.jar" ! -name "*-plain.jar" | head -n 1)
          cp "$BOOT_JAR" app.jar
      - name: Login to Docker registry
        run: |
          echo "${{ secrets.REGISTRY_PASSWORD }}" | \
            docker login git.${{ secrets.DOMAIN }} \
            -u "${{ secrets.REGISTRY_USER }}" \
            --password-stdin
      - name: Build Docker image
        run: |
          docker build \
            -t git.${{ secrets.DOMAIN }}/${{ secrets.REGISTRY_USER }}/etf-oglasi-server:latest \
            backend/
      - name: Push Docker image
        run: |
          docker push \
            git.${{ secrets.DOMAIN }}/${{ secrets.REGISTRY_USER }}/etf-oglasi-server:latest
      - name: Deploy to VPS
        run: |
          mkdir -p ~/.ssh
          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/key
          chmod 600 ~/.ssh/key
          ssh-keyscan -H "${{ secrets.DEPLOY_HOST }}" >> ~/.ssh/known_hosts


          ssh -i ~/.ssh/key \
            "${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }}" \
            "mkdir -p ~/programs/etf-oglasi-server/config"


          ssh -i ~/.ssh/key \
            "${{ secrets.DEPLOY_USER }}@${{ secrets.DEPLOY_HOST }}" \
            "cd ~/programs/etf-oglasi-server && docker compose pull && docker compose up -d"