// Institutional Verifier Service
// Verifies institutional type and legitimacy

export interface InstitutionalVerificationResult {
  verified: boolean;
  verifiedType: string;
  confidence: number;
  riskScore: number;
  details: {
    organizationName: string;
    registrationNumber?: string;
    licenseNumber?: string;
    regulatoryBody?: string;
    verificationMethod: string;
  };
  issues: string[];
}

export class InstitutionalVerifier {
  /**
   * Verify institutional type
   */
  async verify(
    organizationName: string,
    claimedType: string,
    preliminaryInfo: any
  ): Promise<InstitutionalVerificationResult> {
    // Integrate with regulatory databases, license verification systems
    // Framework in place - actual integration depends on available databases
    // For now, perform basic validation

    const issues: string[] = [];
    let verified = true;
    let confidence = 0.8; // Default confidence
    let riskScore = 30; // Default risk score

    // Basic validation
    if (!organizationName || organizationName.length < 3) {
      verified = false;
      issues.push('Organization name is invalid or too short');
      confidence = 0;
      riskScore = 100;
    }

    // Validate institutional type
    const validTypes = ['CentralBank', 'SettlementBank', 'CommercialBank', 'DFI', 'SpecialEntity'];
    if (!validTypes.includes(claimedType)) {
      verified = false;
      issues.push(`Invalid institutional type: ${claimedType}`);
      confidence = 0;
      riskScore = 100;
    }

    // Check for required documentation
    if (!preliminaryInfo?.registrationNumber && !preliminaryInfo?.licenseNumber) {
      issues.push('Missing registration or license information');
      confidence *= 0.7;
      riskScore += 20;
    }

    // Central Bank specific checks
    if (claimedType === 'CentralBank') {
      if (!preliminaryInfo?.regulatoryBody || !preliminaryInfo?.sovereignAuthority) {
        issues.push('Central Bank verification requires regulatory body and sovereign authority information');
        confidence *= 0.6;
        riskScore += 30;
      }
    }

    return {
      verified,
      verifiedType: verified ? claimedType : 'Unknown',
      confidence,
      riskScore: Math.min(100, riskScore),
      details: {
        organizationName,
        registrationNumber: preliminaryInfo?.registrationNumber,
        licenseNumber: preliminaryInfo?.licenseNumber,
        regulatoryBody: preliminaryInfo?.regulatoryBody,
        verificationMethod: preliminaryInfo?.verificationMethod === 'manual' ? 'manual' : 'automated',
      },
      issues,
    };
  }
}

export const institutionalVerifier = new InstitutionalVerifier();
