pipeline {
    agent any
    
    tools {
        jdk 'JDK 17'
    }
    
    triggers {
        pollSCM('H/5 * * * *')
    }
    
    environment {
        GRADLE_OPTS = '-Xmx1024m -Dorg.gradle.daemon=false'
        PROJECT_NAME = 'spring-petclinic'
    }
    
    stages {
        stage('Checkout') {
            steps {
                echo 'Checking out code...'
                checkout scm
                script {
                    sh 'git rev-parse --short HEAD'
                    sh 'git log -1 --pretty=%B'
                }
            }
        }
        
        stage('Build') {
            steps {
                echo 'Building with Gradle...'
                sh './gradlew clean compileJava --no-daemon'
            }
        }
        
        stage('Test') {
            steps {
                echo 'Running tests...'
                sh './gradlew test --no-daemon'
            }
            post {
                always {
                    junit testResults: '**/build/test-results/test/*.xml', allowEmptyResults: true
                    jacoco(
                        execPattern: '**/build/jacoco/*.exec',
                        classPattern: '**/build/classes',
                        sourcePattern: '**/src/main/java',
                        exclusionPattern: '**/*Test*.class'
                    )
                }
            }
        }
        
        stage('Code Quality') {
            steps {
                echo 'Running checkstyle...'
                sh './gradlew checkstyleMain checkstyleTest --no-daemon'
            }
            post {
                always {
                    recordIssues(
                        enabledForFailure: true,
                        tool: checkStyle(pattern: '**/build/reports/checkstyle/*.xml')
                    )
                }
            }
        }
        
        stage('Package') {
            steps {
                echo 'Packaging application...'
                sh './gradlew bootJar --no-daemon'
            }
        }
        
        stage('Archive') {
            steps {
                echo 'Archiving artifacts...'
                archiveArtifacts artifacts: '**/build/libs/*.jar', 
                                fingerprint: true,
                                allowEmptyArchive: false
            }
        }
    }
    
    post {
        success {
            echo 'Build successful!'
        }
        failure {
            echo 'Build failed!'
        }
        always {
            cleanWs(
                cleanWhenNotBuilt: false,
                deleteDirs: true,
                disableDeferredWipeout: true,
                notFailBuild: true
            )
        }
    }
}