Authorities

import { attest } from "@attestprotocol/core";

await attest({
  to: "0x123...abcd",
  schema: "kyc-basic",
  data,
  authority: "0xauthorityAddress"
});

class AuthorityProfileManager {
  private sdk: StellarAttestSDK | SolanaAttestSDK;
  private metadataStore: MetadataStore;
  
  constructor(sdk: StellarAttestSDK | SolanaAttestSDK, metadataStore: MetadataStore) {
    this.sdk = sdk;
    this.metadataStore = metadataStore;
  }

  async createAuthorityProfile(profile: AuthorityProfile): Promise<string> {
    // Validate profile data
    this.validateProfile(profile);
    
    // Create profile metadata
    const profileData = {
      ...profile,
      authorityAddress: this.sdk.getPublicKey(),
      createdAt: Date.now(),
      version: '1.0',
      verified: false
    };
    
    // Store profile metadata
    const profileId = await this.metadataStore.store(profileData);
    
    // Create self-attestation for profile
    const profileAttestation = await this.sdk.attest({
      schemaUID: 'authority-profile-v1',
      subject: this.sdk.getPublicKey(),
      value: `profileId:${profileId},name:${profile.name.replace(/[^a-zA-Z0-9]/g, '_')},categories:${profile.categories.join('_')},verified:false,createdAt:${Math.floor(Date.now() / 1000)}`,
      reference: `profile-${profileId}`
    });
    
    if (profileAttestation.error) {
      throw new Error(`Profile attestation failed: ${profileAttestation.error}`);
    }
    
    return profileId;
  }

  async updateTrustScore(): Promise<number> {
    const metrics = await this.calculateTrustMetrics();
    const trustScore = this.computeTrustScore(metrics);
    
    // Create trust score attestation
    const trustAttestation = await this.sdk.attest({
      schemaUID: 'authority-trust-score-v1',
      subject: this.sdk.getPublicKey(),
      value: `score:${trustScore},attestationsIssued:${metrics.totalAttestations},revocationRate:${metrics.revocationRate},disputeRate:${metrics.disputeRate},uptime:${metrics.uptime},lastUpdated:${Math.floor(Date.now() / 1000)}`,
      reference: `trust-score-${Date.now()}`
    });
    
    if (trustAttestation.error) {
      throw new Error(`Trust score update failed: ${trustAttestation.error}`);
    }
    
    return trustScore;
  }

  private validateProfile(profile: AuthorityProfile): void {
    if (!profile.name || profile.name.length < 3) {
      throw new Error('Authority name must be at least 3 characters');
    }
    
    if (!profile.description || profile.description.length < 20) {
      throw new Error('Description must be at least 20 characters');
    }
    
    if (!profile.categories || profile.categories.length === 0) {
      throw new Error('At least one category must be specified');
    }
    
    if (profile.website && !this.isValidUrl(profile.website)) {
      throw new Error('Invalid website URL');
    }
  }

  private async calculateTrustMetrics(): Promise<TrustMetrics> {
    // Implementation would query historical attestation data
    return {
      totalAttestations: 0,
      revocationRate: 0,
      disputeRate: 0,
      uptime: 0.99,
      averageResponseTime: 2.5,
      clientSatisfaction: 4.8
    };
  }

  private computeTrustScore(metrics: TrustMetrics): number {
    let score = 100;
    
    // Penalize high revocation rate
    score -= metrics.revocationRate * 50;
    
    // Penalize high dispute rate
    score -= metrics.disputeRate * 30;
    
    // Penalize poor uptime
    score -= (1 - metrics.uptime) * 40;
    
    // Bonus for high volume
    if (metrics.totalAttestations > 1000) score += 5;
    if (metrics.totalAttestations > 10000) score += 10;
    
    return Math.max(0, Math.min(100, Math.round(score)));
  }
}

interface AuthorityProfile {
  name: string;
  description: string;
  website?: string;
  categories: string[];
  jurisdiction: string[];
  contactEmail?: string;
  businessLicense?: string;
  insurance?: {
    provider: string;
    policyNumber: string;
    coverage: number;
  };
  certifications?: string[];
}

interface TrustMetrics {
  totalAttestations: number;
  revocationRate: number;
  disputeRate: number;
  uptime: number;
  averageResponseTime: number;
  clientSatisfaction: number;
}

// Best practice: Use hardware wallet or HSM
const signer = new HardwareWalletSigner({
  derivationPath: "m/44'/501'/0'/0'",
  device: 'ledger'
});

const sdk = await AttestSDK.initializeStellar({
  secretKeyOrCustomSigner: signer,
  publicKey: authorityPublicKey,
  url: RPC_URL
});

// Multi-sig authority setup
const multiSigAuthority = {
  signers: [
    { publicKey: 'signer1_pub', weight: 1 },
    { publicKey: 'signer2_pub', weight: 1 },
    { publicKey: 'signer3_pub', weight: 1 }
  ],
  threshold: 2 // Require 2 of 3 signatures
};

// Create delegated signer
const delegatedSigner = {
  address: 'delegate_address',
  permissions: ['kyc-basic', 'age-verification'],
  expiresAt: Date.now() + 30 * 24 * 60 * 60 * 1000 // 30 days
};

interface AuthorityReputation {
  totalAttestations: number;
  activeAttestations: number;
  revocationRate: number;
  disputeRate: number;
  averageRating: number;
  verificationLevel: 'basic' | 'verified' | 'professional' | 'institutional';
  specializations: string[];
}

// 1. Verify subject identity/claims
const verificationResult = await verifySubject(subjectAddress, claimData);

// 2. Create attestation if verified
if (verificationResult.verified) {
  const attestation = await sdk.attest({
    schemaUID: 'kyc-basic-v1',
    subject: subjectAddress,
    value: 'verified:true,level:basic,score:85,timestamp:1704067200',
    reference: `verification-${Date.now()}`
  });
}

// 3. Store verification records
await storeVerificationRecord(attestation.data);

// Batch attestation issuance
const subjects = [
  { address: '0x123...', data: 'verified:true,score:90' },
  { address: '0x456...', data: 'verified:true,score:85' },
  { address: '0x789...', data: 'verified:true,score:92' }
];

const attestations = await Promise.all(
  subjects.map(subject => 
    sdk.attest({
      schemaUID: 'verification-v1',
      subject: subject.address,
      value: subject.data,
      reference: `batch-${Date.now()}`
    })
  )
);

// Revoke attestation
const revocation = await sdk.revokeAttestation({
  schemaUID: 'kyc-basic-v1',
  subject: subjectAddress,
  reference: 'original-reference'
});

// Best practice: Log revocation reason
await logRevocation({
  attestationId: revocation.data.attestationUID,
  reason: 'Failed re-verification',
  timestamp: Date.now()
});

Authority → Attestation → Subject

Authority A ─┐
Authority B ─┼→ Combined Attestation → Subject
Authority C ─┘

Root Authority
    ├── Regional Authority A
    │   ├── Local Verifier 1
    │   └── Local Verifier 2
    └── Regional Authority B
        ├── Local Verifier 3
        └── Local Verifier 4

Authority A ↔ Authority B
    ↕           ↕
Authority D ↔ Authority C

// Fee configuration
const authorityFees = {
  'kyc-basic': 10, // $10 USD equivalent
  'kyc-enhanced': 50, // $50 USD equivalent
  'professional-cert': 100, // $100 USD equivalent
};

// Check fee before attestation
async function processAttestation(schemaType: string, payment: number) {
  const requiredFee = authorityFees[schemaType];
  
  if (payment >= requiredFee) {
    // Process attestation
    return await issueAttestation(schemaType);
  } else {
    throw new Error(`Insufficient payment. Required: ${requiredFee}`);
  }
}

// Authority staking requirement
const stakingRequirements = {
  basic: 1000, // 1,000 tokens
  verified: 10000, // 10,000 tokens
  professional: 50000, // 50,000 tokens
  institutional: 100000 // 100,000 tokens
};

// Revenue distribution
const feeDistribution = {
  authority: 0.70, // 70% to issuing authority
  protocol: 0.20, // 20% to protocol treasury
  referrer: 0.10 // 10% to referrer (if any)
};

// Compliance checklist
const complianceChecks = {
  dataMinimization: true, // Only collect necessary data
  userConsent: true, // Explicit consent for attestations
  dataRetention: 365, // Days to retain records
  encryptionRequired: true, // Encrypt sensitive data
  auditTrail: true // Maintain verification logs
};

import { StellarAttestSDK, SolanaAttestSDK } from '@attestprotocol/sdk';

class EnterpriseKYCAuthority {
  private sdk: StellarAttestSDK | SolanaAttestSDK;
  private complianceLogger: ComplianceLogger;
  private encryptionService: EncryptionService;
  
  constructor(
    sdk: StellarAttestSDK | SolanaAttestSDK,
    complianceLogger: ComplianceLogger,
    encryptionService: EncryptionService
  ) {
    this.sdk = sdk;
    this.complianceLogger = complianceLogger;
    this.encryptionService = encryptionService;
  }

  async performKYCVerification(
    userData: KYCUserData
  ): Promise<KYCVerificationResult> {
    const sessionId = `kyc-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
    
    try {
      // 1. Log verification start for audit trail
      await this.complianceLogger.logEvent({
        type: 'kyc_verification_started',
        sessionId,
        userAddress: userData.walletAddress,
        timestamp: Date.now()
      });

      // 2. Perform comprehensive KYC checks
      const verificationResults = await this.executeKYCChecks(userData);
      
      // 3. Calculate risk score
      const riskScore = this.calculateRiskScore(verificationResults);
      
      // 4. Determine KYC level based on checks
      const kycLevel = this.determineKYCLevel(verificationResults, riskScore);
      
      if (verificationResults.passed && riskScore <= 25) {
        // 5. Create attestation for successful verification
        const attestationData = `verified:true,level:${kycLevel},riskScore:${riskScore},country:${userData.country},pepCheck:${verificationResults.pepCheck},sanctionsCheck:${verificationResults.sanctionsCheck},documentVerification:${verificationResults.documentVerification},timestamp:${Math.floor(Date.now() / 1000)}`;
        
        const attestation = await this.sdk.attest({
          schemaUID: 'kyc-enhanced-v1',
          subject: userData.walletAddress,
          value: attestationData,
          reference: sessionId
        });
        
        if (attestation.error) {
          throw new Error(`Attestation creation failed: ${attestation.error}`);
        }
        
        // 6. Store encrypted compliance records
        const encryptedKYCData = await this.encryptionService.encrypt({
          ...verificationResults,
          userData: this.sanitizeUserData(userData),
          riskScore,
          sessionId
        });
        
        await this.storeComplianceRecord({
          sessionId,
          attestationUID: attestation.data,
          encryptedData: encryptedKYCData,
          kycLevel,
          riskScore,
          timestamp: Date.now()
        });
        
        // 7. Log successful verification
        await this.complianceLogger.logEvent({
          type: 'kyc_verification_completed',
          sessionId,
          userAddress: userData.walletAddress,
          kycLevel,
          riskScore,
          attestationUID: attestation.data,
          timestamp: Date.now()
        });
        
        return {
          success: true,
          sessionId,
          attestationUID: attestation.data,
          kycLevel,
          riskScore,
          expiresAt: Date.now() + (365 * 24 * 60 * 60 * 1000) // 1 year
        };
      } else {
        // Handle failed verification
        await this.complianceLogger.logEvent({
          type: 'kyc_verification_failed',
          sessionId,
          userAddress: userData.walletAddress,
          reason: verificationResults.failureReason,
          riskScore,
          timestamp: Date.now()
        });
        
        return {
          success: false,
          sessionId,
          reason: verificationResults.failureReason,
          riskScore,
          requiredActions: verificationResults.requiredActions
        };
      }
    } catch (error) {
      // Log error for audit trail
      await this.complianceLogger.logEvent({
        type: 'kyc_verification_error',
        sessionId,
        userAddress: userData.walletAddress,
        error: error.message,
        timestamp: Date.now()
      });
      
      throw error;
    }
  }

  async revokeKYCAttestation(
    userAddress: string,
    reason: string
  ): Promise<void> {
    const revocationId = `revoke-${Date.now()}`;
    
    // Find existing KYC attestation
    const existing = await this.sdk.fetchAttestation({
      schemaUID: 'kyc-enhanced-v1',
      subject: userAddress
    });
    
    if (!existing.data || existing.data.revoked) {
      throw new Error('No active KYC attestation found for user');
    }
    
    // Revoke the attestation
    const revocation = await this.sdk.revokeAttestation({
      schemaUID: 'kyc-enhanced-v1',
      subject: userAddress,
      reference: existing.data.reference
    });
    
    if (revocation.error) {
      throw new Error(`Revocation failed: ${revocation.error}`);
    }
    
    // Log revocation for compliance
    await this.complianceLogger.logEvent({
      type: 'kyc_attestation_revoked',
      revocationId,
      userAddress,
      originalReference: existing.data.reference,
      reason,
      revokedBy: this.sdk.getPublicKey(),
      timestamp: Date.now()
    });
  }

  private async executeKYCChecks(userData: KYCUserData): Promise<KYCCheckResults> {
    const checks = await Promise.allSettled([
      this.performDocumentVerification(userData.documents),
      this.performPEPCheck(userData.personalInfo),
      this.performSanctionsCheck(userData.personalInfo),
      this.performAddressVerification(userData.address),
      this.performBiometricVerification(userData.biometrics)
    ]);
    
    return {
      documentVerification: checks[0].status === 'fulfilled' && checks[0].value.passed,
      pepCheck: checks[1].status === 'fulfilled' && checks[1].value.cleared,
      sanctionsCheck: checks[2].status === 'fulfilled' && checks[2].value.cleared,
      addressVerification: checks[3].status === 'fulfilled' && checks[3].value.verified,
      biometricVerification: checks[4].status === 'fulfilled' && checks[4].value.matched,
      passed: checks.every(check => check.status === 'fulfilled' && check.value.passed),
      failureReason: checks.find(check => check.status === 'rejected')?.reason,
      requiredActions: checks
        .filter(check => check.status === 'rejected')
        .map(check => check.reason)
    };
  }

  private calculateRiskScore(results: KYCCheckResults): number {
    let score = 0;
    
    if (!results.documentVerification) score += 30;
    if (!results.pepCheck) score += 25;
    if (!results.sanctionsCheck) score += 40;
    if (!results.addressVerification) score += 15;
    if (!results.biometricVerification) score += 20;
    
    return Math.min(score, 100);
  }

  private determineKYCLevel(results: KYCCheckResults, riskScore: number): string {
    if (riskScore <= 10 && results.biometricVerification) {
      return 'enhanced';
    } else if (riskScore <= 25 && results.documentVerification) {
      return 'standard';
    } else {
      return 'basic';
    }
  }
}

interface KYCUserData {
  walletAddress: string;
  personalInfo: {
    firstName: string;
    lastName: string;
    dateOfBirth: string;
    nationality: string;
  };
  documents: {
    passportId?: string;
    drivingLicense?: string;
    nationalId?: string;
  };
  address: {
    street: string;
    city: string;
    country: string;
    postalCode: string;
  };
  biometrics?: {
    faceImage: string;
    fingerprint?: string;
  };
  country: string;
}

interface KYCCheckResults {
  documentVerification: boolean;
  pepCheck: boolean;
  sanctionsCheck: boolean;
  addressVerification: boolean;
  biometricVerification: boolean;
  passed: boolean;
  failureReason?: string;
  requiredActions?: string[];
}

interface KYCVerificationResult {
  success: boolean;
  sessionId: string;
  attestationUID?: string;
  kycLevel?: string;
  riskScore: number;
  expiresAt?: number;
  reason?: string;
  requiredActions?: string[];
}

class DAOGovernanceAuthority {
  private sdk: StellarAttestSDK | SolanaAttestSDK;
  private governanceContract: string;
  private minimumQuorum: number;
  
  constructor(
    sdk: StellarAttestSDK | SolanaAttestSDK,
    governanceContract: string,
    minimumQuorum: number = 0.1
  ) {
    this.sdk = sdk;
    this.governanceContract = governanceContract;
    this.minimumQuorum = minimumQuorum;
  }

  async processMembershipProposal(
    proposalId: string,
    candidateAddress: string
  ): Promise<MembershipResult> {
    // 1. Verify proposal exists and passed
    const proposal = await this.getProposal(proposalId);
    if (!proposal) {
      throw new Error(`Proposal ${proposalId} not found`);
    }
    
    if (!this.hasProposalPassed(proposal)) {
      throw new Error('Proposal has not passed required thresholds');
    }
    
    // 2. Calculate membership parameters
    const membershipData = await this.calculateMembershipParameters(
      candidateAddress,
      proposal
    );
    
    // 3. Create membership attestation
    const attestationData = `daoAddress:${this.governanceContract},memberSince:${Math.floor(Date.now() / 1000)},role:${membershipData.role},votingPower:${membershipData.votingPower},proposalsCreated:0,proposalsVoted:0,delegatedVotes:0,reputation:${membershipData.initialReputation},lastActive:${Math.floor(Date.now() / 1000)}`;
    
    const attestation = await this.sdk.attest({
      schemaUID: 'dao-governance-v1',
      subject: candidateAddress,
      value: attestationData,
      reference: `proposal-${proposalId}`
    });
    
    if (attestation.error) {
      throw new Error(`Membership attestation failed: ${attestation.error}`);
    }
    
    // 4. Update DAO member registry
    await this.updateMemberRegistry({
      address: candidateAddress,
      proposalId,
      attestationUID: attestation.data,
      membershipData,
      approvedAt: Date.now()
    });
    
    return {
      success: true,
      memberAddress: candidateAddress,
      attestationUID: attestation.data,
      membershipData,
      approvedBy: proposalId
    };
  }

  async updateMemberActivity(
    memberAddress: string,
    activityData: MemberActivity
  ): Promise<void> {
    // Get current membership attestation
    const currentAttestation = await this.sdk.fetchAttestation({
      schemaUID: 'dao-governance-v1',
      subject: memberAddress
    });
    
    if (!currentAttestation.data || currentAttestation.data.revoked) {
      throw new Error('No active DAO membership found');
    }
    
    // Parse current data
    const currentData = this.parseAttestationData(currentAttestation.data.value);
    
    // Update activity metrics
    const updatedData = {
      ...currentData,
      proposalsCreated: parseInt(currentData.proposalsCreated) + activityData.proposalsCreated,
      proposalsVoted: parseInt(currentData.proposalsVoted) + activityData.proposalsVoted,
      reputation: this.calculateNewReputation(currentData, activityData),
      lastActive: Math.floor(Date.now() / 1000)
    };
    
    // Create updated attestation
    const newAttestationData = Object.entries(updatedData)
      .map(([key, value]) => `${key}:${value}`)
      .join(',');
    
    const newAttestation = await this.sdk.attest({
      schemaUID: 'dao-governance-v1',
      subject: memberAddress,
      value: newAttestationData,
      reference: `activity-update-${Date.now()}`
    });
    
    if (newAttestation.error) {
      throw new Error(`Activity update failed: ${newAttestation.error}`);
    }
    
    // Revoke previous attestation
    await this.sdk.revokeAttestation({
      schemaUID: 'dao-governance-v1',
      subject: memberAddress,
      reference: currentAttestation.data.reference
    });
  }

  private async getProposal(proposalId: string): Promise<Proposal | null> {
    // Implementation depends on governance system
    // This would typically query the DAO's governance contract
    return null; // Placeholder
  }

  private hasProposalPassed(proposal: Proposal): boolean {
    const quorumMet = proposal.totalVotes >= (proposal.totalMembers * this.minimumQuorum);
    const majoritySupport = proposal.yesVotes > proposal.noVotes;
    const votingPeriodEnded = Date.now() > proposal.votingEndsAt;
    
    return quorumMet && majoritySupport && votingPeriodEnded;
  }

  private parseAttestationData(value: string): Record<string, string> {
    const pairs = value.split(',');
    const result: Record<string, string> = {};
    
    pairs.forEach(pair => {
      const [key, val] = pair.split(':');
      result[key] = val;
    });
    
    return result;
  }
}

interface MemberActivity {
  proposalsCreated: number;
  proposalsVoted: number;
  delegatedVotes?: number;
  contributionScore?: number;
}

interface MembershipResult {
  success: boolean;
  memberAddress: string;
  attestationUID: string;
  membershipData: any;
  approvedBy: string;
}

interface Proposal {
  id: string;
  totalVotes: number;
  yesVotes: number;
  noVotes: number;
  totalMembers: number;
  votingEndsAt: number;
}

interface AuthorityMetrics {
  attestationsIssued: {
    total: number;
    daily: number;
    weekly: number;
    monthly: number;
  };
  revocationRate: number;
  averageProcessingTime: number;
  revenueGenerated: number;
  activeUsers: number;
  schemaUsage: Record<string, number>;
}

class AuthorityPerformanceMonitor {
  private metrics: Map<string, AuthorityMetrics> = new Map();
  private analyticsService: AnalyticsService;
  
  constructor(analyticsService: AnalyticsService) {
    this.analyticsService = analyticsService;
  }

  async trackAttestationMetrics(
    authorityAddress: string,
    attestation: AttestationEvent
  ): Promise<void> {
    const startTime = Date.now();
    
    try {
      // Track individual attestation
      await this.analyticsService.track({
        event: 'attestation_issued',
        properties: {
          authorityAddress,
          schemaUID: attestation.schemaUID,
          processingTime: attestation.processingTime,
          subject: attestation.subject,
          success: true,
          timestamp: Date.now()
        }
      });
      
      // Update running metrics
      await this.updateRunningMetrics(authorityAddress, {
        attestationsIssued: 1,
        totalProcessingTime: attestation.processingTime,
        successfulOperations: 1,
        timestamp: Date.now()
      });
      
    } catch (error) {
      // Track failure
      await this.analyticsService.track({
        event: 'attestation_failed',
        properties: {
          authorityAddress,
          schemaUID: attestation.schemaUID,
          error: error.message,
          timestamp: Date.now()
        }
      });
      
      await this.updateRunningMetrics(authorityAddress, {
        failedOperations: 1,
        timestamp: Date.now()
      });
    }
  }

  async generatePerformanceReport(
    authorityAddress: string,
    timeRange: TimeRange
  ): Promise<PerformanceReport> {
    const metrics = await this.analyticsService.query({
      authorityAddress,
      startTime: timeRange.start,
      endTime: timeRange.end
    });
    
    return {
      authorityAddress,
      timeRange,
      totalAttestations: metrics.attestationsIssued,
      successRate: metrics.successfulOperations / (metrics.successfulOperations + metrics.failedOperations),
      averageProcessingTime: metrics.totalProcessingTime / metrics.attestationsIssued,
      revocationRate: metrics.revocations / metrics.attestationsIssued,
      schemaUsage: metrics.schemaBreakdown,
      errorBreakdown: metrics.errorTypes,
      recommendations: this.generateRecommendations(metrics)
    };
  }

  private generateRecommendations(metrics: any): string[] {
    const recommendations = [];
    
    if (metrics.averageProcessingTime > 5000) {
      recommendations.push('Consider optimizing attestation processing pipeline');
    }
    
    if (metrics.successRate < 0.95) {
      recommendations.push('Investigate and resolve recurring error patterns');
    }
    
    if (metrics.revocationRate > 0.05) {
      recommendations.push('Review verification procedures to reduce revocations');
    }
    
    return recommendations;
  }
}

interface AttestationEvent {
  schemaUID: string;
  subject: string;
  processingTime: number;
  reference: string;
}

interface TimeRange {
  start: number;
  end: number;
}

interface PerformanceReport {
  authorityAddress: string;
  timeRange: TimeRange;
  totalAttestations: number;
  successRate: number;
  averageProcessingTime: number;
  revocationRate: number;
  schemaUsage: Record<string, number>;
  errorBreakdown: Record<string, number>;
  recommendations: string[];
}