name: Backend CI

on:
  push:
    branches: [ main, develop ]
    paths:
      - 'backend/**'
  pull_request:
    branches: [ main, develop ]
    paths:
      - 'backend/**'

jobs:
  test:
    name: Run Maven Tests
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
      
    - name: Set up JDK 21
      uses: actions/setup-java@v4
      with:
        java-version: '21'
        distribution: 'temurin'
        cache: 'maven'
        
    - name: Cache Maven packages
      uses: actions/cache@v3
      with:
        path: ~/.m2
        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
        restore-keys: ${{ runner.os }}-m2
        
    - name: Run Maven tests
      working-directory: ./backend
      run: mvn test
      
    - name: Upload test results
      uses: actions/upload-artifact@v3
      if: always()
      with:
        name: backend-test-results
        path: backend/target/surefire-reports/
        retention-days: 7