pipeline {
    agent any
    
    environment {
        APP_NAME = 'devops-test'
        VERSION = '1.0.0'
    }
    
    stages {
        stage('Checkout') {
            steps {
                echo "📦 Cloning repository..."
                checkout scm
            }
        }
        
        stage('Validate') {
            steps {
                echo "🔍 Validating scripts..."
                sh 'ls -la'
                sh 'chmod +x app.sh'
                sh 'bash -n app.sh'  // Syntax check
            }
        }
        
        stage('Test') {
            steps {
                echo "🧪 Running tests..."
                sh './app.sh'
            }
        }
        
        stage('Build Info') {
            steps {
                echo "📊 Build Information:"
                echo "  App: ${APP_NAME}"
                echo "  Version: ${VERSION}"
                echo "  Build: ${BUILD_NUMBER}"
                echo "  Branch: ${GIT_BRANCH}"
            }
        }
    }
    
    post {
        success {
            echo "✅ Pipeline completed successfully!"
        }
        failure {
            echo "❌ Pipeline failed!"
        }
        always {
            echo "🏁 Pipeline finished at ${new Date()}"
        }
    }
}