pipeline {
    agent any

    stages {
        stage('Build') {
            steps {
                script {
                    sh """
                    docker buildx build -t helloworld 
                    """
                    }
            }
        }
    }

    post {
        failure {
            script {
                // Get the last successful build number
                def jobName = env.JOB_NAME
                def lastSuccessfulBuild = Jenkins.instance.getItemByFullName(jobName).getLastSuccessfulBuild()

                if (lastSuccessfulBuild) {
                    // Redeploy the last successful build
                    echo "Redeploying build #${lastSuccessfulBuild.number}..."
                    echo "last build was ${lastSuccessfulBuild.number}"
                    // You can call your deployment script or steps here
                    // Example: sh "deploy-script.sh ${lastSuccessfulBuild.number}"
                } else {
                    error "No successful build found to deploy."
                }
            }
        }
    }
}