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 -o StrictHostKeyChecking=no $SSH_USER@$SERVER "mkdir -p /opt/deployments/${params.BRANCH}"
                            sshpass -p '$SSH_PASS' scp -r -o StrictHostKeyChecking=no ./* $SSH_USER@$SERVER:/opt/deployments/${params.BRANCH}/
                            
                            sshpass -p '$SSH_PASS' ssh -o StrictHostKeyChecking=no $SSH_USER@$SERVER "
                                cd /opt/deployments/${params.BRANCH}
                                
                                echo '========================================'
                                echo 'Step 1: Checking current state...'
                                echo '========================================'
                                
                                docker ps --filter 'name=postgres|app-backend|storage|grafana|prometheus|loki|tempo|alloy' --format 'table {{.Names}}\\t{{.Image}}\\t{{.Status}}'
                                
                                echo '========================================'
                                echo 'Step 2: Setup environment for compatibility...'
                                echo '========================================'
                                
                                docker network create app-network 2>/dev/null || echo 'Network app-network already exists'
                                
                                echo 'COMPOSE_COMPATIBILITY=true' > .env
                                
                                echo '========================================'
                                echo 'Step 3: Force cleanup old application...'
                                echo '========================================'
                                
                                docker-compose --compatibility down 2>/dev/null || echo 'No previous compose stack'
                                
                                docker images --filter 'reference=*app-backend*' -q | xargs -r docker rmi -f 2>/dev/null || echo 'No images to remove'
                                
                                echo '========================================'
                                echo 'Step 4: Verify files and fix compose...'
                                echo '========================================'
                                
                                if [ ! -f docker-compose.yaml ]; then
                                    echo 'ERROR: docker-compose.yaml not found!'
                                    ls -la
                                    exit 1
                                fi
                                
                                echo 'Checking docker-compose.yaml syntax...'
                                docker-compose --compatibility config 2>&1 | head -20 || echo 'Config check output'
                                
                                echo '========================================'
                                echo 'Step 5: Start infrastructure services...'
                                echo '========================================'
                                
                                echo 'Starting PostgreSQL with resource limits...'
                                docker-compose --compatibility up -d db
                                
                                echo 'Starting storage service...'
                                docker-compose --compatibility up -d storage
                                
                                echo 'Waiting for PostgreSQL to be ready...'
                                for i in {1..30}; do
                                    if docker-compose --compatibility exec db pg_isready -U postgres 2>/dev/null; then
                                        echo 'PostgreSQL is ready'
                                        break
                                    fi
                                    echo 'Waiting... attempt ' \$i
                                    sleep 2
                                done
                                
                                echo '========================================'
                                echo 'Step 6: Build application image...'
                                echo '========================================'
                                
                                if [ ! -f Dockerfile ]; then
                                    echo 'ERROR: Dockerfile not found!'
                                    exit 1
                                fi
                                
                                echo 'Building Docker image...'
                                docker build --no-cache -t app-backend:latest . 2>&1 | tail -30
                                
                                echo 'Image created successfully'
                                docker images app-backend:latest --format 'table {{.Repository}}\\t{{.Tag}}\\t{{.Size}}\\t{{.CreatedAt}}'
                                
                                echo '========================================'
                                echo 'Step 7: Start application with resource limits...'
                                echo '========================================'
                                
                                docker volume create uploads_data 2>/dev/null || echo 'Volume uploads_data already exists'
                                
                                echo 'Starting main application...'
                                docker-compose --compatibility up -d app
                                
                                echo 'Waiting for application to start...'
                                sleep 15
                                
                                echo '========================================'
                                echo 'Step 8: Start monitoring stack...'
                                echo '========================================'
                                
                                docker-compose --compatibility up -d grafana prometheus loki tempo alloy
                                
                                echo '========================================'
                                echo 'Step 9: Verify deployment...'
                                echo '========================================'
                                
                                echo 'All containers status:'
                                docker-compose --compatibility ps
                                
                                echo ''
                                echo 'Resource limits check:'
                                echo 'App backend limits:'
                                docker inspect app-backend --format='{{.HostConfig.Memory}} {{.HostConfig.CpuQuota}} {{.HostConfig.CpuPeriod}}' 2>/dev/null || echo 'Cannot inspect'
                                
                                echo ''
                                echo 'PostgreSQL limits:'
                                docker inspect postgres --format='{{.HostConfig.Memory}} {{.HostConfig.CpuQuota}} {{.HostConfig.CpuPeriod}}' 2>/dev/null || echo 'Cannot inspect'
                                
                                echo ''
                                echo 'Container resource usage:'
                                docker stats --no-stream --format 'table {{.Name}}\\t{{.CPUPerc}}\\t{{.MemUsage}}\\t{{.MemPerc}}' postgres app-backend storage 2>/dev/null || echo 'Stats not available'
                                
                                echo '========================================'
                                echo 'Step 10: Health checks...'
                                echo '========================================'
                                
                                echo 'Application health check...'
                                for i in {1..10}; do
                                    if curl -s -f http://localhost:80/health 2>/dev/null; then
                                        echo '✓ Application health check PASSED'
                                        break
                                    elif [ \$i -eq 10 ]; then
                                        echo '✗ Application health check FAILED'
                                        echo 'Last logs:'
                                        docker-compose --compatibility logs --tail=20 app
                                    else
                                        echo 'Waiting for application... attempt ' \$i
                                        sleep 5
                                    fi
                                done
                                
                                echo 'Checking monitoring services...'
                                if curl -s -f http://localhost:3000/api/health 2>/dev/null; then
                                    echo '✓ Grafana is healthy'
                                else
                                    echo '⚠ Grafana may be starting'
                                fi
                                
                                if curl -s -f http://localhost:9090/-/healthy 2>/dev/null; then
                                    echo '✓ Prometheus is healthy'
                                fi
                                
                                echo '========================================'
                                echo 'Deployment Summary:'
                                echo '========================================'
                                echo 'Application URL: http://${params.SERVER}:80'
                                echo 'Grafana: http://${params.SERVER}:3000 (admin/admin)'
                                echo 'Prometheus: http://${params.SERVER}:9090'
                                echo 'Loki: http://${params.SERVER}:3100'
                                echo ''
                                echo 'To view logs: docker-compose logs -f app'
                                echo 'To view all containers: docker-compose ps'
                                echo 'To stop: docker-compose down'
                                echo '========================================'
                            "
                        """
                    }
                }
            }
        }
    }

    post {
        success {
            echo "Deployment successful"
            echo "Application URL: http://${params.SERVER}:80"
            echo "Grafana: http://${params.SERVER}:3000"
            echo "Prometheus: http://${params.SERVER}:9090"
        }
        failure {
            echo "Deployment failed for branch ${params.BRANCH}"
        }
        always {
            echo "Deployment process finished"
        }
    }
}