pipeline {
    agent any

    tools {
        maven 'Maven3'
    }

    environment {
        SCANNER_HOME = tool 'SonarScanner'
    }

    stages {
        stage('Build Backend') {
            steps {
                dir('backend') {
                    sh 'mvn -version'
                    sh 'mvn clean package -DskipTests'
                }
            }
        }

        stage('Check target classes') {
            steps {
                sh 'ls -la backend/target/classes'
            }
        }

        stage('Sonar Scan') {
            steps {
                withSonarQubeEnv('sonarqube') {
                    sh '''
                        $SCANNER_HOME/bin/sonar-scanner
                    '''
                }
            }
        }
    }
}