pipeline {
    agent any

    parameters {
        string(
                name: 'BRANCH',
                defaultValue: 'dev',
                description: 'Ветка для деплоя'
        )

        string(
                name: 'SERVER',
                defaultValue: '92.242.61.23',
                description: 'Сервер для деплоя'
        )
    }

    stages {
        stage('Git pull') {
            steps {
                script {
                    checkout([
                            $class: 'GitSCM',
                            branches: [[name: params.BRANCH]],
                            userRemoteConfigs: [[
                                                        url: 'https://code.3err0.ru/backdev/no-copy.git',
                                                        credentialsId: 'nx-jen'
                                                ]]
                    ])
                }
            }
        }

        stage('Deploy with docker-compose') {
            steps {
                script {
                    withCredentials([
                            usernamePassword(
                                    credentialsId: 'server-root-password',
                                    usernameVariable: 'SSH_USER',
                                    passwordVariable: 'SSH_PASS'
                            )
                    ]) {
                        sh """
                            echo "Deploying branch: ${params.BRANCH}"
                            
                            echo "Copying files to server..."
                            sshpass -p '$SSH_PASS' ssh $SSH_USER@$SERVER "mkdir -p /opt/deployments/${params.BRANCH}"
                            sshpass -p '$SSH_PASS' scp -r ./* $SSH_USER@$SERVER:/opt/deployments/${params.BRANCH}/
                            
                            sshpass -p '$SSH_PASS' ssh $SSH_USER@$SERVER "
                                cd /opt/deployments/${params.BRANCH}
                                
                                echo 'Step 1: Checking current state...'
                                
                                # Смотрим что запущено
                                docker ps --filter 'name=postgres|app-backend' --format 'table {{.Names}}\\t{{.Image}}\\t{{.Status}}\\t{{.Ports}}'
                                
                                echo 'Step 2: Force cleanup old application...'
                                
                                # Принудительно удаляем старый контейнер и образ
                                docker stop app-backend 2>/dev/null || echo 'App not running'
                                docker rm app-backend 2>/dev/null || echo 'App not found'
                                docker rmi app-backend:latest 2>/dev/null || echo 'Image not found'
                                
                                # Удаляем все образы app-backend
                                docker images --filter 'reference=app-backend*' -q | xargs -r docker rmi 2>/dev/null || echo 'No images to remove'
                                
                                echo 'Step 3: Verify copied files...'
                                echo 'Files in directory:'
                                ls -la
                                echo ''
                                echo 'Checking Java sources:'
                                find . -name '*.java' | head -2
                                
                                echo 'Step 4: Check if PostgreSQL is running...'
                                if ! docker ps | grep -q postgres; then
                                    echo 'Starting PostgreSQL...'
                                    docker-compose up -d db
                                    sleep 10
                                else
                                    echo 'PostgreSQL already running'
                                fi
                                
                                echo 'Step 5: Build application with forced rebuild...'
                                echo 'Checking Dockerfile exists:'
                                ls -la Dockerfile 2>/dev/null || echo 'Dockerfile not found, creating simple one'
                                
                                # Если нет Dockerfile, создаем простой
                                if [ ! -f Dockerfile ]; then
                                    echo 'Creating simple Dockerfile...'
                                    cat > Dockerfile << 'EOF'
FROM eclipse-temurin:21-jre
WORKDIR /app
COPY . /app/
CMD ["java", "-jar", "app.jar"]
EOF
                                fi
                                
                                # Собираем с подробным выводом
                                echo 'Building Docker image...'
                                docker build --no-cache --progress=plain -t app-backend:latest . 2>&1 | tail -50
                                
                                echo 'Step 6: Verify new image...'
                                echo 'Current app-backend images:'
                                docker images | grep app-backend
                                
                                echo 'Image creation time:'
                                docker inspect app-backend:latest --format='{{.Created}}' 2>/dev/null || echo 'Cannot inspect image'
                                
                                echo 'Step 7: Starting application with alias...'
                                docker run -d \\
                                  --name app-backend \\
                                  --network app-network \\
                                  --network-alias app \\
                                  -p 80:8080 \\
                                  -e POSTGRES_DB=no_copy_ \\
                                  -e POSTGRES_USER=postgres \\
                                  -e POSTGRES_PASSWORD=postgres \\
                                  -e POSTGRES_PORT=5432 \\
                                  -e POSTGRES_HOST=db \\
                                  --restart unless-stopped \\
                                  app-backend:latest
                                
                                echo 'Step 8: Checking deployment...'
                                sleep 10
                                
                                echo 'Containers status:'
                                docker ps --filter 'name=postgres|app-backend' --format 'table {{.Names}}\\t{{.Image}}\\t{{.Status}}\\t{{.CreatedAt}}'
                                
                                echo 'Checking image inside container:'
                                docker exec app-backend ls -la /app/ 2>/dev/null || echo 'Cannot check container files'
                                
                                echo 'Application logs (last 10 lines):'
                                docker logs --tail=10 app-backend 2>/dev/null || echo 'Logs not available yet'
                                
                                echo 'Step 9: Health check...'
                                if docker ps | grep -q app-backend; then
                                    echo 'Container is running'
                                    echo 'Testing application health...'
                                    for i in {1..5}; do
                                        if curl -s -f http://localhost:80/health > /dev/null 2>&1; then
                                            echo 'Health check passed'
                                            echo 'Deployment successful'
                                            echo 'Application URL: http://${params.SERVER}:80'
                                            exit 0
                                        fi
                                        echo 'Waiting for application to start... attempt ' \$i
                                        sleep 5
                                    done
                                    
                                    echo 'Health check failed, but container is running'
                                    echo 'Application might be starting slowly'
                                    echo 'Application URL: http://${params.SERVER}:80'
                                else
                                    echo 'Application failed to start'
                                    docker logs app-backend
                                    exit 1
                                fi
                            "
                        """
                    }
                }
            }
        }
    }

    post {
        success {
            echo "Deployment successful"
            echo "Application URL: http://${params.SERVER}:80"
        }
        failure {
            echo "Deployment failed for branch ${params.BRANCH}"
        }
        always {
            echo "Deployment process finished"
        }
    }
}