pipeline {
    agent any

    environment {
        DOCKER_REGISTRY = 'your-registry'
        IMAGE_NAME = 'family-accounting'
        IMAGE_TAG = "${BUILD_NUMBER}"
        CONTAINER_NAME = 'family_accounting_backend'
        DEPLOY_DIR = '/opt/family-accounting'
    }

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

        stage('Build Docker Image') {
            steps {
                script {
                    docker.build("${DOCKER_REGISTRY}/${IMAGE_NAME}:${IMAGE_TAG}", "-f backend/Dockerfile backend/")
                }
            }
        }

        stage('Push to Registry') {
            steps {
                script {
                    docker.withRegistry("https://${DOCKER_REGISTRY}", 'docker-registry-credentials') {
                        docker.image("${DOCKER_REGISTRY}/${IMAGE_NAME}:${IMAGE_TAG}").push()
                        docker.image("${DOCKER_REGISTRY}/${IMAGE_NAME}:${IMAGE_TAG}").push('latest')
                    }
                }
            }
        }

        stage('Deploy via SSH') {
            steps {
                sshagent(['deploy-server-key']) {
                    sh """
                        ssh -o StrictHostKeyChecking=no deploy@your-server << 'EOF'
                            cd ${DEPLOY_DIR}
                            export TAG=${IMAGE_TAG}
                            export REGISTRY=${DOCKER_REGISTRY}
                            docker compose pull backend
                            docker compose up -d backend
                            docker image prune -f
                        EOF
                    """
                }
            }
        }

        stage('Health Check') {
            steps {
                script {
                    sleep(10)
                    sh "curl -f http://your-server:3000/api/hello || exit 1"
                }
            }
        }

        stage('Cleanup') {
            steps {
                script {
                    sh """
                        docker image prune -f --filter "until=24h"
                        # 保留最近5个镜像
                        docker images ${DOCKER_REGISTRY}/${IMAGE_NAME} --format '{{.ID}}' | tail -n +6 | xargs -r docker rmi
                    """
                }
            }
        }
    }

    post {
        success {
            echo 'Deployment successful!'
        }
        failure {
            echo 'Deployment failed!'
        }
    }
}