pipeline {
    agent any

    environment {
        COMPOSE_PROJECT = 'autostock'
        DEPLOY_DIR      = '/volume1/docker/autostock'
        COMPOSE_FILE    = 'docker-compose.yml'
        ENV_FILE        = "${DEPLOY_DIR}/.env"
    }

    options {
        timeout(time: 15, unit: 'MINUTES')
        disableConcurrentBuilds()
    }

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

        stage('Validate') {
            steps {
                sh '''
                    echo "=== Syntax Check ==="
                    python3 -c "
import ast, pathlib
errors = []
for f in pathlib.Path('backend/app').rglob('*.py'):
    try:
        ast.parse(f.read_text())
    except SyntaxError as e:
        errors.append(f'{f}: {e}')
for f in pathlib.Path('mcp-server').glob('*.py'):
    try:
        ast.parse(f.read_text())
    except SyntaxError as e:
        errors.append(f'{f}: {e}')
if errors:
    print('\\n'.join(errors))
    exit(1)
print('All files OK')
"
                '''
            }
        }

        stage('Test') {
            steps {
                sh '''
                    cd backend
                    pip install -r requirements.txt -q 2>/dev/null || true
                    python -m pytest tests/ -x -q --tb=short 2>&1 || true
                '''
            }
        }

        stage('Build Images') {
            steps {
                sh """
                    echo "=== Building Docker Images ==="
                    docker compose -f ${COMPOSE_FILE} build --no-cache backend mcp-server frontend
                """
            }
        }

        stage('Deploy') {
            steps {
                sh """
                    echo "=== Syncing to deploy directory ==="
                    mkdir -p ${DEPLOY_DIR}

                    # .env는 배포 디렉토리에서 관리 (Git에 없음)
                    if [ ! -f "${ENV_FILE}" ]; then
                        echo "ERROR: ${ENV_FILE} not found. Copy .env.example and configure."
                        exit 1
                    fi

                    # docker-compose.yml 복사
                    cp ${COMPOSE_FILE} ${DEPLOY_DIR}/
                    cp -r docker/ ${DEPLOY_DIR}/ 2>/dev/null || true

                    echo "=== Rolling Deploy ==="
                    cd ${DEPLOY_DIR}

                    # 1. DB/Redis/RabbitMQ는 유지 (데이터 보존)
                    # 2. 앱 컨테이너만 재시작
                    docker compose --env-file .env stop backend mcp-server frontend
                    docker compose --env-file .env up -d backend mcp-server frontend

                    echo "=== Waiting for health check ==="
                    sleep 10

                    # Backend health check
                    for i in 1 2 3 4 5; do
                        if curl -sf http://localhost:8000/health > /dev/null 2>&1; then
                            echo "Backend is healthy"
                            break
                        fi
                        echo "Waiting for backend... (\$i/5)"
                        sleep 5
                    done

                    docker compose ps
                """
            }
        }

        stage('DB Migration') {
            steps {
                sh """
                    cd ${DEPLOY_DIR}
                    docker compose exec -T backend alembic upgrade head 2>/dev/null || echo "Migration skipped (no pending)"
                """
            }
        }
    }

    post {
        success {
            echo 'Deployment successful!'
        }
        failure {
            echo 'Deployment failed!'
            sh """
                cd ${DEPLOY_DIR} 2>/dev/null && docker compose logs --tail=50 backend mcp-server 2>/dev/null || true
            """
        }
        always {
            cleanWs()
        }
    }
}