/**
 * Security Testing Framework для системы SFERA
 *
 * Комплексная система тестирования безопасности с поддержкой:
 * - Role-based access control тестирования
 * - Data filtering и изоляции участников
 * - Threat detection и alert системы
 * - Performance и penetration testing
 */

import { PrismaClient } from '@prisma/client'
import { GraphQLError } from 'graphql'

import { SupplyDataFilter } from '../supply-data-filter'
import { ParticipantIsolation } from '../participant-isolation'
import { CommercialDataAudit } from '../commercial-data-audit'
import { RealTimeSecurityAlerts } from '../real-time-security-alerts'
import { AutomatedThreatDetection } from '../automated-threat-detection'
import { SecurityLogger } from '../../../lib/security-logger'

/**
 * Типы тестов безопасности
 */
export enum SecurityTestType {
  ACCESS_CONTROL = 'ACCESS_CONTROL',
  DATA_FILTERING = 'DATA_FILTERING',
  PARTICIPANT_ISOLATION = 'PARTICIPANT_ISOLATION',
  THREAT_DETECTION = 'THREAT_DETECTION',
  AUDIT_COMPLIANCE = 'AUDIT_COMPLIANCE',
  PERFORMANCE = 'PERFORMANCE',
  PENETRATION = 'PENETRATION',
}

/**
 * Уровни серьезности уязвимостей
 */
export enum VulnerabilitySeverity {
  CRITICAL = 'CRITICAL',
  HIGH = 'HIGH',
  MEDIUM = 'MEDIUM',
  LOW = 'LOW',
  INFO = 'INFO',
}

/**
 * Типы ролей для тестирования
 */
export enum TestRole {
  SELLER = 'SELLER',
  WHOLESALE = 'WHOLESALE', 
  FULFILLMENT = 'FULFILLMENT',
  LOGIST = 'LOGIST',
  ADMIN = 'ADMIN',
  ANONYMOUS = 'ANONYMOUS',
}

/**
 * Результат теста безопасности
 */
export interface SecurityTestResult {
  testId: string
  testType: SecurityTestType
  testName: string
  role: TestRole
  passed: boolean
  severity: VulnerabilitySeverity
  description: string
  vulnerability?: {
    type: string
    impact: string
    recommendation: string
    evidence: Record<string, unknown>
  }
  performance?: {
    executionTime: number
    memoryUsage: number
    cpuUsage: number
  }
  timestamp: Date
  metadata: Record<string, unknown>
}

/**
 * Конфигурация тестового пользователя
 */
export interface TestUser {
  id: string
  organizationId: string
  organizationType: TestRole
  email: string
  permissions: string[]
  metadata: Record<string, unknown>
}

/**
 * Тестовые данные для проверки безопасности
 */
export interface TestData {
  supplyOrders: Array<{
    id: string
    organizationId: string
    fulfillmentCenterId: string
    logisticsPartnerId: string
    items: Array<{
      product: { organizationId: string }
      recipe: { 
        services: Array<{ price: number }>
        fulfillmentConsumables: Array<{ price: number }>
        sellerConsumables: Array<{ price: number }>
      }
    }>
    productPrice: number
    fulfillmentServicePrice: number
    logisticsPrice: number
  }>
  organizations: Array<{
    id: string
    type: TestRole
    name: string
  }>
  partnerships: Array<{
    organizationId: string
    partnerId: string
    type: string
    active: boolean
  }>
}

/**
 * Основной класс Security Testing Framework
 */
export class SecurityTestFramework {
  private testResults: SecurityTestResult[] = []
  private testUsers: Map<TestRole, TestUser> = new Map()
  private testData: TestData

  constructor(private prisma: PrismaClient) {
    this.initializeTestUsers()
    this.initializeTestData()
  }

  /**
   * Запуск всех тестов безопасности
   */
  async runAllTests(): Promise<SecurityTestResult[]> {
    this.testResults = []

    SecurityLogger.logSecurityInfo({
      message: 'Starting comprehensive security test suite',
      timestamp: new Date(),
    })

    // Последовательно запускаем все категории тестов
    await this.runAccessControlTests()
    await this.runDataFilteringTests()
    await this.runParticipantIsolationTests()
    await this.runThreatDetectionTests()
    await this.runAuditComplianceTests()
    await this.runPerformanceTests()

    const summary = this.generateTestSummary()
    
    SecurityLogger.logSecurityInfo({
      message: 'Security test suite completed',
      summary,
      timestamp: new Date(),
    })

    return this.testResults
  }

  /**
   * Запуск тестов для конкретной роли
   */
  async runRoleSpecificTests(role: TestRole): Promise<SecurityTestResult[]> {
    const roleTests = []

    SecurityLogger.logSecurityInfo({
      message: `Starting role-specific tests for ${role}`,
      role,
      timestamp: new Date(),
    })

    switch (role) {
      case TestRole.SELLER:
        roleTests.push(...await this.runSellerTests())
        break
      case TestRole.WHOLESALE:
        roleTests.push(...await this.runWholesaleTests())
        break
      case TestRole.FULFILLMENT:
        roleTests.push(...await this.runFulfillmentTests())
        break
      case TestRole.LOGIST:
        roleTests.push(...await this.runLogistTests())
        break
      default:
        throw new Error(`Unsupported test role: ${role}`)
    }

    return roleTests
  }

  /**
   * Запуск тестов контроля доступа
   */
  private async runAccessControlTests(): Promise<void> {
    const tests = [
      {
        name: 'Unauthorized GraphQL Access',
        role: TestRole.ANONYMOUS,
        test: () => this.testUnauthorizedAccess(),
      },
      {
        name: 'Cross-Role Data Access',
        role: TestRole.SELLER,
        test: () => this.testCrossRoleAccess(),
      },
      {
        name: 'Admin Privilege Escalation',
        role: TestRole.SELLER,
        test: () => this.testPrivilegeEscalation(),
      },
    ]

    for (const { name, role, test } of tests) {
      await this.runSingleTest({
        testName: name,
        testType: SecurityTestType.ACCESS_CONTROL,
        role,
        testFunction: test,
      })
    }
  }

  /**
   * Запуск тестов фильтрации данных
   */
  private async runDataFilteringTests(): Promise<void> {
    const tests = [
      {
        name: 'Price Data Filtering by Role',
        role: TestRole.WHOLESALE,
        test: () => this.testPriceDataFiltering(),
      },
      {
        name: 'Recipe Data Protection',
        role: TestRole.WHOLESALE,
        test: () => this.testRecipeDataProtection(),
      },
      {
        name: 'Commercial Confidentiality',
        role: TestRole.LOGIST,
        test: () => this.testCommercialConfidentiality(),
      },
    ]

    for (const { name, role, test } of tests) {
      await this.runSingleTest({
        testName: name,
        testType: SecurityTestType.DATA_FILTERING,
        role,
        testFunction: test,
      })
    }
  }

  /**
   * Запуск тестов изоляции участников
   */
  private async runParticipantIsolationTests(): Promise<void> {
    const tests = [
      {
        name: 'Organization Data Isolation',
        role: TestRole.SELLER,
        test: () => this.testOrganizationIsolation(),
      },
      {
        name: 'Partnership Validation',
        role: TestRole.SELLER,
        test: () => this.testPartnershipValidation(),
      },
      {
        name: 'Competitor Data Leakage',
        role: TestRole.WHOLESALE,
        test: () => this.testCompetitorDataLeakage(),
      },
    ]

    for (const { name, role, test } of tests) {
      await this.runSingleTest({
        testName: name,
        testType: SecurityTestType.PARTICIPANT_ISOLATION,
        role,
        testFunction: test,
      })
    }
  }

  /**
   * Запуск тестов обнаружения угроз
   */
  private async runThreatDetectionTests(): Promise<void> {
    const tests = [
      {
        name: 'Data Scraping Detection',
        role: TestRole.SELLER,
        test: () => this.testDataScrapingDetection(),
      },
      {
        name: 'Anomalous Access Patterns',
        role: TestRole.WHOLESALE,
        test: () => this.testAnomalousAccessDetection(),
      },
      {
        name: 'Insider Threat Detection',
        role: TestRole.FULFILLMENT,
        test: () => this.testInsiderThreatDetection(),
      },
    ]

    for (const { name, role, test } of tests) {
      await this.runSingleTest({
        testName: name,
        testType: SecurityTestType.THREAT_DETECTION,
        role,
        testFunction: test,
      })
    }
  }

  /**
   * Запуск тестов соблюдения аудита
   */
  private async runAuditComplianceTests(): Promise<void> {
    const tests = [
      {
        name: 'Audit Log Completeness',
        role: TestRole.SELLER,
        test: () => this.testAuditLogCompleteness(),
      },
      {
        name: 'Security Alert Generation',
        role: TestRole.WHOLESALE,
        test: () => this.testSecurityAlertGeneration(),
      },
      {
        name: 'Compliance Reporting',
        role: TestRole.FULFILLMENT,
        test: () => this.testComplianceReporting(),
      },
    ]

    for (const { name, role, test } of tests) {
      await this.runSingleTest({
        testName: name,
        testType: SecurityTestType.AUDIT_COMPLIANCE,
        role,
        testFunction: test,
      })
    }
  }

  /**
   * Запуск performance тестов
   */
  private async runPerformanceTests(): Promise<void> {
    const tests = [
      {
        name: 'Security Filtering Performance',
        role: TestRole.SELLER,
        test: () => this.testSecurityFilteringPerformance(),
      },
      {
        name: 'Threat Detection Latency',
        role: TestRole.WHOLESALE,
        test: () => this.testThreatDetectionLatency(),
      },
      {
        name: 'Concurrent Access Handling',
        role: TestRole.FULFILLMENT,
        test: () => this.testConcurrentAccessHandling(),
      },
    ]

    for (const { name, role, test } of tests) {
      await this.runSingleTest({
        testName: name,
        testType: SecurityTestType.PERFORMANCE,
        role,
        testFunction: test,
      })
    }
  }

  /**
   * Выполнение отдельного теста
   */
  private async runSingleTest(params: {
    testName: string
    testType: SecurityTestType
    role: TestRole
    testFunction: () => Promise<{ passed: boolean; vulnerability?: any; performance?: any; evidence?: any }>
  }): Promise<void> {
    const testId = `${params.testType}_${params.role}_${Date.now()}`
    const startTime = Date.now()
    
    try {
      SecurityLogger.logSecurityInfo({
        message: `Running test: ${params.testName}`,
        testId,
        role: params.role,
        type: params.testType,
      })

      const result = await params.testFunction()
      const executionTime = Date.now() - startTime

      const testResult: SecurityTestResult = {
        testId,
        testType: params.testType,
        testName: params.testName,
        role: params.role,
        passed: result.passed,
        severity: result.vulnerability ? this.determineSeverity(result.vulnerability) : VulnerabilitySeverity.INFO,
        description: result.passed ? 'Test passed successfully' : 'Security vulnerability detected',
        vulnerability: result.vulnerability,
        performance: result.performance || {
          executionTime,
          memoryUsage: process.memoryUsage().heapUsed,
          cpuUsage: process.cpuUsage().system,
        },
        timestamp: new Date(),
        metadata: {
          evidence: result.evidence || {},
          testFunction: params.testFunction.name,
        },
      }

      this.testResults.push(testResult)

      if (!result.passed) {
        SecurityLogger.logSecurityAlert({
          id: `vulnerability-${testId}`,
          type: 'SECURITY_TEST_FAILED',
          severity: testResult.severity as any,
          userId: this.testUsers.get(params.role)?.id || 'test-user',
          message: `Security test failed: ${params.testName}`,
          metadata: testResult,
          timestamp: new Date(),
          resolved: false,
        })
      }

    } catch (error) {
      const testResult: SecurityTestResult = {
        testId,
        testType: params.testType,
        testName: params.testName,
        role: params.role,
        passed: false,
        severity: VulnerabilitySeverity.HIGH,
        description: `Test execution failed: ${(error as Error).message}`,
        timestamp: new Date(),
        metadata: {
          error: (error as Error).message,
          stack: (error as Error).stack,
        },
      }

      this.testResults.push(testResult)

      SecurityLogger.logSecurityError(error as Error, {
        operation: 'securityTest',
        testId,
        testName: params.testName,
        role: params.role,
      })
    }
  }

  /**
   * Инициализация тестовых пользователей
   */
  private initializeTestUsers(): void {
    this.testUsers.set(TestRole.SELLER, {
      id: 'test-seller-001',
      organizationId: 'seller-org-001',
      organizationType: TestRole.SELLER,
      email: 'test.seller@example.com',
      permissions: ['READ_OWN_SUPPLIES', 'CREATE_SUPPLY_ORDER'],
      metadata: { testUser: true },
    })

    this.testUsers.set(TestRole.WHOLESALE, {
      id: 'test-wholesale-001', 
      organizationId: 'wholesale-org-001',
      organizationType: TestRole.WHOLESALE,
      email: 'test.wholesale@example.com',
      permissions: ['READ_OWN_PRODUCTS', 'APPROVE_ORDERS'],
      metadata: { testUser: true },
    })

    this.testUsers.set(TestRole.FULFILLMENT, {
      id: 'test-fulfillment-001',
      organizationId: 'fulfillment-org-001', 
      organizationType: TestRole.FULFILLMENT,
      email: 'test.fulfillment@example.com',
      permissions: ['READ_ASSIGNED_ORDERS', 'VIEW_RECIPES'],
      metadata: { testUser: true },
    })

    this.testUsers.set(TestRole.LOGIST, {
      id: 'test-logist-001',
      organizationId: 'logist-org-001',
      organizationType: TestRole.LOGIST,
      email: 'test.logist@example.com', 
      permissions: ['READ_LOGISTICS_INFO', 'UPDATE_DELIVERY_STATUS'],
      metadata: { testUser: true },
    })

    this.testUsers.set(TestRole.ANONYMOUS, {
      id: 'anonymous',
      organizationId: '',
      organizationType: TestRole.ANONYMOUS,
      email: '',
      permissions: [],
      metadata: { testUser: true },
    })
  }

  /**
   * Инициализация тестовых данных
   */
  private initializeTestData(): void {
    this.testData = {
      supplyOrders: [
        {
          id: 'order-001',
          organizationId: 'seller-org-001',
          fulfillmentCenterId: 'fulfillment-org-001',
          logisticsPartnerId: 'logist-org-001',
          productPrice: 1000,
          fulfillmentServicePrice: 200,
          logisticsPrice: 100,
          items: [
            {
              product: { organizationId: 'wholesale-org-001' },
              recipe: {
                services: [{ price: 100 }],
                fulfillmentConsumables: [{ price: 50 }],
                sellerConsumables: [{ price: 30 }],
              },
            },
          ],
        },
        {
          id: 'order-002',
          organizationId: 'seller-org-002', // Другой селлер
          fulfillmentCenterId: 'fulfillment-org-002',
          logisticsPartnerId: 'logist-org-002',
          productPrice: 2000,
          fulfillmentServicePrice: 400,
          logisticsPrice: 200,
          items: [
            {
              product: { organizationId: 'wholesale-org-002' },
              recipe: {
                services: [{ price: 200 }],
                fulfillmentConsumables: [{ price: 100 }],
                sellerConsumables: [{ price: 60 }],
              },
            },
          ],
        },
      ],
      organizations: [
        { id: 'seller-org-001', type: TestRole.SELLER, name: 'Test Seller 1' },
        { id: 'seller-org-002', type: TestRole.SELLER, name: 'Test Seller 2' },
        { id: 'wholesale-org-001', type: TestRole.WHOLESALE, name: 'Test Wholesale 1' },
        { id: 'wholesale-org-002', type: TestRole.WHOLESALE, name: 'Test Wholesale 2' },
        { id: 'fulfillment-org-001', type: TestRole.FULFILLMENT, name: 'Test Fulfillment 1' },
        { id: 'fulfillment-org-002', type: TestRole.FULFILLMENT, name: 'Test Fulfillment 2' },
        { id: 'logist-org-001', type: TestRole.LOGIST, name: 'Test Logist 1' },
        { id: 'logist-org-002', type: TestRole.LOGIST, name: 'Test Logist 2' },
      ],
      partnerships: [
        {
          organizationId: 'seller-org-001',
          partnerId: 'wholesale-org-001',
          type: 'SUPPLIER',
          active: true,
        },
        {
          organizationId: 'seller-org-001',
          partnerId: 'fulfillment-org-001',
          type: 'FULFILLMENT',
          active: true,
        },
        // Партнерство отсутствует между seller-org-001 и wholesale-org-002
      ],
    }
  }

  /**
   * Определение уровня серьезности уязвимости
   */
  private determineSeverity(vulnerability: any): VulnerabilitySeverity {
    if (vulnerability.type?.includes('DATA_LEAK') || vulnerability.type?.includes('ACCESS_BYPASS')) {
      return VulnerabilitySeverity.CRITICAL
    }
    if (vulnerability.type?.includes('PRIVILEGE_ESCALATION') || vulnerability.type?.includes('AUTH_BYPASS')) {
      return VulnerabilitySeverity.HIGH
    }
    if (vulnerability.type?.includes('INFORMATION_DISCLOSURE')) {
      return VulnerabilitySeverity.MEDIUM
    }
    return VulnerabilitySeverity.LOW
  }

  /**
   * Генерация сводки результатов тестов
   */
  private generateTestSummary(): any {
    const summary = {
      total: this.testResults.length,
      passed: this.testResults.filter(r => r.passed).length,
      failed: this.testResults.filter(r => !r.passed).length,
      bySeverity: {} as Record<string, number>,
      byType: {} as Record<string, number>,
      byRole: {} as Record<string, number>,
      vulnerabilities: this.testResults.filter(r => r.vulnerability).length,
      avgExecutionTime: 0,
    }

    // Группировка по серьезности
    this.testResults.forEach(result => {
      summary.bySeverity[result.severity] = (summary.bySeverity[result.severity] || 0) + 1
      summary.byType[result.testType] = (summary.byType[result.testType] || 0) + 1
      summary.byRole[result.role] = (summary.byRole[result.role] || 0) + 1
    })

    // Средний time выполнения
    const totalTime = this.testResults.reduce((sum, r) => sum + (r.performance?.executionTime || 0), 0)
    summary.avgExecutionTime = totalTime / this.testResults.length

    return summary
  }

  // Заглушки для тестовых методов - будут реализованы в отдельных файлах
  private async testUnauthorizedAccess(): Promise<any> { return { passed: true } }
  private async testCrossRoleAccess(): Promise<any> { return { passed: true } }
  private async testPrivilegeEscalation(): Promise<any> { return { passed: true } }
  private async testPriceDataFiltering(): Promise<any> { return { passed: true } }
  private async testRecipeDataProtection(): Promise<any> { return { passed: true } }
  private async testCommercialConfidentiality(): Promise<any> { return { passed: true } }
  private async testOrganizationIsolation(): Promise<any> { return { passed: true } }
  private async testPartnershipValidation(): Promise<any> { return { passed: true } }
  private async testCompetitorDataLeakage(): Promise<any> { return { passed: true } }
  private async testDataScrapingDetection(): Promise<any> { return { passed: true } }
  private async testAnomalousAccessDetection(): Promise<any> { return { passed: true } }
  private async testInsiderThreatDetection(): Promise<any> { return { passed: true } }
  private async testAuditLogCompleteness(): Promise<any> { return { passed: true } }
  private async testSecurityAlertGeneration(): Promise<any> { return { passed: true } }
  private async testComplianceReporting(): Promise<any> { return { passed: true } }
  private async testSecurityFilteringPerformance(): Promise<any> { return { passed: true } }
  private async testThreatDetectionLatency(): Promise<any> { return { passed: true } }
  private async testConcurrentAccessHandling(): Promise<any> { return { passed: true } }
  private async runSellerTests(): Promise<SecurityTestResult[]> { return [] }
  private async runWholesaleTests(): Promise<SecurityTestResult[]> { return [] }
  private async runFulfillmentTests(): Promise<SecurityTestResult[]> { return [] }
  private async runLogistTests(): Promise<SecurityTestResult[]> { return [] }

  /**
   * Получение результатов тестов
   */
  getTestResults(): SecurityTestResult[] {
    return this.testResults
  }

  /**
   * Получение результатов по типу теста
   */
  getTestResultsByType(type: SecurityTestType): SecurityTestResult[] {
    return this.testResults.filter(result => result.testType === type)
  }

  /**
   * Получение результатов по роли
   */
  getTestResultsByRole(role: TestRole): SecurityTestResult[] {
    return this.testResults.filter(result => result.role === role)
  }

  /**
   * Получение только неуспешных тестов
   */
  getFailedTests(): SecurityTestResult[] {
    return this.testResults.filter(result => !result.passed)
  }

  /**
   * Получение уязвимостей критического уровня
   */
  getCriticalVulnerabilities(): SecurityTestResult[] {
    return this.testResults.filter(result => 
      !result.passed && result.severity === VulnerabilitySeverity.CRITICAL
    )
  }
}