// Regulatory Compliance Checker Service
// Validates regulatory compliance

import { ComplianceCheckResult, SanctionsCheckDetails, AMLKYCDetails, PreliminaryInfo } from '../types/common.types';

export interface RegulatoryComplianceResult {
  compliant: boolean;
  riskScore: number;
  checks: {
    sanctions: ComplianceCheckResult;
    aml: ComplianceCheckResult;
    kyc: ComplianceCheckResult;
    licensing: ComplianceCheckResult;
  };
  issues: string[];
}

export class RegulatoryComplianceChecker {
  /**
   * Check regulatory compliance
   */
  async check(
    jurisdiction: string,
    organizationName: string,
    preliminaryInfo: PreliminaryInfo
  ): Promise<RegulatoryComplianceResult> {
    // TODO: Integrate with OFAC, EU sanctions, UN sanctions databases
    // TODO: Integrate with AML/KYC verification systems
    // For now, perform basic checks

    const issues: string[] = [];
    let compliant = true;
    let riskScore = 20; // Default risk score

    // Sanctions check
    const { sanctionsService } = await import('@/core/iru/compliance/sanctions.service');
    const sanctionsResult = await sanctionsService.checkSanctions({
      entityName: organizationName,
      entityType: 'organization',
      jurisdiction,
    });
    
    const sanctionsCheck = {
      passed: !sanctionsResult.match,
      details: sanctionsResult,
    };
    
    if (!sanctionsCheck.passed) {
      compliant = false;
      issues.push('Organization or jurisdiction appears on sanctions list');
      riskScore = 100;
    }

    // AML/KYC check
    const { amlKycService } = await import('@/core/iru/compliance/aml-kyc.service');
    const amlKycResult = await amlKycService.verifyEntity({
      entityName: organizationName,
      entityType: 'organization',
      jurisdiction,
      identifiers: preliminaryInfo?.identifiers || {},
    });
    
    const amlCheck = {
      passed: amlKycResult.verified && amlKycResult.riskLevel !== 'high',
      details: amlKycResult,
    };
    
    const kycCheck = {
      passed: amlKycResult.verified,
      details: amlKycResult,
    };
    
    if (!amlCheck.passed) {
      issues.push('AML compliance concerns identified');
      riskScore += 30;
    }

    if (!kycCheck.passed) {
      issues.push('KYC verification incomplete');
      riskScore += 20;
    }

    // Licensing check
    const licensingCheck = await this.checkLicensing(jurisdiction, organizationName, preliminaryInfo);
    if (!licensingCheck.passed) {
      issues.push('Valid license or registration not verified');
      riskScore += 25;
    }

    if (riskScore > 70) {
      compliant = false;
    }

    return {
      compliant,
      riskScore: Math.min(100, riskScore),
      checks: {
        sanctions: sanctionsCheck,
        aml: amlCheck,
        kyc: kycCheck,
        licensing: licensingCheck,
      },
      issues,
    };
  }

  private async checkSanctions(jurisdiction: string, organizationName: string): Promise<any> {
    // TODO: Integrate with sanctions databases
    return {
      passed: true,
      details: {
        checked: true,
        sources: ['OFAC', 'EU', 'UN'],
        matches: [],
      },
    };
  }

  private async checkAML(organizationName: string, preliminaryInfo: PreliminaryInfo): Promise<ComplianceCheckResult> {
    // TODO: Integrate with AML verification
    return {
      passed: true,
      details: {
        checked: true,
        riskLevel: 'low',
      },
    };
  }

  private async checkKYC(organizationName: string, preliminaryInfo: PreliminaryInfo): Promise<ComplianceCheckResult> {
    // TODO: Integrate with KYC verification
    const hasRequiredInfo =
      preliminaryInfo?.registrationNumber || preliminaryInfo?.licenseNumber;

    return {
      passed: hasRequiredInfo,
      details: {
        checked: true,
        verified: hasRequiredInfo,
      },
    };
  }

  private async checkLicensing(
    jurisdiction: string,
    organizationName: string,
    preliminaryInfo: PreliminaryInfo
  ): Promise<ComplianceCheckResult> {
    // TODO: Integrate with licensing databases
    const hasLicense = preliminaryInfo?.licenseNumber || preliminaryInfo?.registrationNumber;

    return {
      passed: hasLicense,
      details: {
        checked: true,
        verified: hasLicense,
        licenseNumber: preliminaryInfo?.licenseNumber,
        registrationNumber: preliminaryInfo?.registrationNumber,
      },
    };
  }
}

export const regulatoryComplianceChecker = new RegulatoryComplianceChecker();
