pipeline {
    agent any

    environment {
        REGISTRY = "myharbor.local:80"
        APP_NAME = "ecommerce-app" 
        IMAGE_NAME = "ecommerce-backend"
        IMAGE_TAG = "${REGISTRY}/library/${IMAGE_NAME}:${env.BRANCH_NAME}-${env.BUILD_NUMBER}"
        NAMESPACE = "ecommerce"
        // Explicitly tell the docker wrapper where to find the daemon you just started
        BUILDKIT_HOST = "unix:///run/buildkit/buildkitd.sock"
    }

    stages {
        stage('Checkout') {
            steps {
                checkout scm
            }
        }

        stage('Build Image') {
            steps {
                script {
                    // Check if the socket you just created is actually visible to the Jenkins agent
                    sh """
                    if [ -S /run/buildkit/buildkitd.sock ]; then
                        echo "BuildKit socket found! Proceeding with build..."
                    else
                        echo "BuildKit socket NOT found at /run/buildkit/buildkitd.sock"
                        echo "Listing /run to find correct path:"
                        ls -R /run
                        exit 1
                    fi
                    """
                    
                    // Build using the socket
                    sh "docker build -t ${IMAGE_TAG} ."
                }
            }
        }

        stage('Push to Harbor') {
            steps {
                script {
                    withCredentials([usernamePassword(credentialsId: 'harbor-creds', passwordVariable: 'PASS', usernameVariable: 'USER')]) {
                        sh "docker login ${REGISTRY} -u ${USER} -p ${PASS}"
                        sh "docker push ${IMAGE_TAG}"
                    }
                }
            }
        }

        stage('Inject to K8s Cache') {
            steps {
                script {
                    // This is crucial: inject into the k8s namespace
                    sh "docker save ${IMAGE_TAG} | sudo ctr -n k8s.io images import -"
                }
            }
        }

        stage('Deploy to K8s') {
            steps {
                script {
                    withCredentials([file(credentialsId: 'k8s-config', variable: 'KUBECONFIG')]) {
                        sh """
                        kubectl --kubeconfig=${KUBECONFIG} patch deployment ${APP_NAME} -n ${NAMESPACE} --patch \
                        '{"spec": {"template": {"spec": {"containers": [{"name": "${APP_NAME}", "image": "${IMAGE_TAG}", "imagePullPolicy": "Never"}]}}}}'
                        """
                        sh "kubectl --kubeconfig=${KUBECONFIG} rollout status deployment/${APP_NAME} -n ${NAMESPACE}"
                    }
                }
            }
        }
    }
}