/**
 * Comprehensive Reputation and Rating System
 * Manages trust, performance metrics, and social proof for AI agents and users
 */

import type { Address } from '@solana/addresses';
import type { Rpc, SolanaRpcApi } from '@solana/rpc';
import type { Commitment } from '@solana/rpc-types';
import type { KeyPairSigner } from '@solana/signers';
import { sendAndConfirmTransactionFactory } from '../utils/transaction-helpers.js';

/**
 * Rating categories for comprehensive evaluation
 */
export type RatingCategory = 
  | 'overall'              // Overall satisfaction
  | 'technical_skill'      // Technical competency
  | 'communication'        // Communication quality
  | 'reliability'          // Meeting deadlines and commitments
  | 'innovation'           // Creative problem solving
  | 'collaboration'        // Teamwork and cooperation
  | 'cost_effectiveness'   // Value for money
  | 'responsiveness'       // Response time and availability
  | 'quality'              // Work quality and attention to detail
  | 'professionalism';     // Professional conduct

/**
 * Rating source types for verification
 */
export type RatingSource = 
  | 'direct_client'        // Direct client review
  | 'peer_review'          // Other agent review
  | 'automated_metric'     // System-generated metric
  | 'escrow_completion'    // Successful escrow completion
  | 'community_vote'       // Community consensus
  | 'verified_transaction' // Blockchain-verified transaction
  | 'third_party_audit';   // External audit

/**
 * Reputation tier levels
 */
export type ReputationTier = 
  | 'newcomer'             // 0-99 points
  | 'bronze'               // 100-499 points
  | 'silver'               // 500-999 points
  | 'gold'                 // 1000-2499 points
  | 'platinum'             // 2500-4999 points
  | 'diamond'              // 5000-9999 points
  | 'legendary';           // 10000+ points

/**
 * Individual rating with comprehensive metadata
 */
export interface IRating {
  ratingId: Address;
  fromAddress: Address;
  toAddress: Address;
  transactionId?: Address; // Associated transaction if applicable
  
  // Rating details
  category: RatingCategory;
  score: number; // 1-5 scale with decimals (e.g., 4.7)
  comment?: string;
  
  // Verification and source
  source: RatingSource;
  isVerified: boolean;
  verificationProof?: string; // Hash or signature proof
  
  // Context
  projectType?: string;
  projectValue?: bigint;
  interactionDuration?: number; // milliseconds
  
  // Metadata
  timestamp: number;
  blockHeight?: number;
  weight: number; // 0.1 - 1.0 based on rater credibility
  
  // Moderation
  isDisputed: boolean;
  moderationStatus: 'pending' | 'approved' | 'rejected' | 'under_review';
  reportCount: number;
}

/**
 * Comprehensive reputation profile
 */
export interface IReputationProfile {
  address: Address;
  
  // Overall metrics
  overallScore: number; // 0-5 weighted average
  totalRatings: number;
  reputationPoints: number;
  tier: ReputationTier;
  
  // Category breakdown
  categoryScores: Record<RatingCategory, {
    score: number;
    count: number;
    trend: 'improving' | 'stable' | 'declining';
  }>;
  
  // Performance metrics
  completionRate: number; // Percentage of successful completions
  averageResponseTime: number; // milliseconds
  onTimeDeliveryRate: number; // Percentage
  disputeRate: number; // Percentage of transactions disputed
  
  // Activity and engagement
  totalTransactions: number;
  totalVolume: bigint; // Total SOL transacted
  activeDays: number; // Days active on platform
  lastActiveDate: number;
  
  // Social proof
  endorsements: Array<{
    fromAddress: Address;
    skill: string;
    timestamp: number;
  }>;
  achievements: Array<{
    type: string;
    title: string;
    description: string;
    earnedDate: number;
    rarity: 'common' | 'uncommon' | 'rare' | 'legendary';
  }>;
  
  // Risk indicators
  riskScore: number; // 0-100 (lower is better)
  flaggedCount: number;
  suspensionHistory: Array<{
    reason: string;
    startDate: number;
    endDate: number;
  }>;
  
  // Verification status
  isVerified: boolean;
  verificationLevel: 'basic' | 'enhanced' | 'enterprise';
  kycCompleted: boolean;
  
  // Calculated metrics
  trendingScore: number; // Recent performance trend
  recommendationScore: number; // Likelihood to recommend (0-100)
  trustScore: number; // Overall trustworthiness (0-100)
  
  // Historical data
  scoreHistory: Array<{
    date: number;
    score: number;
    event: string;
  }>;
}

/**
 * Rating submission interface
 */
export interface IRatingSubmission {
  targetAddress: Address;
  transactionId?: Address;
  category: RatingCategory;
  score: number; // 1-5
  comment?: string;
  projectType?: string;
  projectValue?: bigint;
  evidence?: string[]; // IPFS hashes or other proof
  isAnonymous?: boolean;
}

/**
 * Reputation analytics and insights
 */
export interface IReputationAnalytics {
  // Performance trends
  performanceTrend: {
    period: 'week' | 'month' | 'quarter' | 'year';
    direction: 'improving' | 'stable' | 'declining';
    changePercentage: number;
    keyDrivers: string[];
  };
  
  // Comparative analysis
  peerComparison: {
    percentile: number; // Where they rank among peers
    averagePeerScore: number;
    strengthAreas: RatingCategory[];
    improvementAreas: RatingCategory[];
  };
  
  // Market insights
  marketPosition: {
    demandLevel: 'low' | 'medium' | 'high' | 'exceptional';
    priceMultiplier: number; // How much premium they can charge
    competitorCount: number;
    marketShare: number; // Percentage
  };
  
  // Recommendations
  actionableInsights: Array<{
    priority: 'high' | 'medium' | 'low';
    category: string;
    recommendation: string;
    potentialImpact: string;
    estimatedEffort: 'low' | 'medium' | 'high';
  }>;
  
  // Risk assessment
  riskAssessment: {
    currentRiskLevel: 'low' | 'medium' | 'high' | 'critical';
    riskFactors: string[];
    mitigationSuggestions: string[];
    insurabilityScore: number; // 0-100
  };
}

/**
 * Reputation search and filtering
 */
export interface IReputationFilters {
  // Score ranges
  minOverallScore?: number;
  maxOverallScore?: number;
  minReputationPoints?: number;
  tiers?: ReputationTier[];
  
  // Category requirements
  categoryRequirements?: Record<RatingCategory, {
    minScore?: number;
    minRatings?: number;
  }>;
  
  // Performance filters
  minCompletionRate?: number;
  maxDisputeRate?: number;
  maxResponseTime?: number;
  
  // Verification filters
  verificationRequired?: boolean;
  verificationLevels?: ('basic' | 'enhanced' | 'enterprise')[];
  kycRequired?: boolean;
  
  // Activity filters
  minTotalTransactions?: number;
  minTotalVolume?: bigint;
  activeWithinDays?: number;
  
  // Risk management
  maxRiskScore?: number;
  excludeFlagged?: boolean;
  excludeSuspended?: boolean;
  
  // Sorting
  sortBy?: 'overall_score' | 'reputation_points' | 'total_ratings' | 'completion_rate' | 'recent_activity';
  sortOrder?: 'asc' | 'desc';
}

/**
 * Comprehensive Reputation and Rating Service
 */
export class ReputationService {
  constructor(
    private readonly rpc: Rpc<SolanaRpcApi>,
    private readonly _programId: Address,
    private readonly commitment: Commitment = 'confirmed'
  ) {}

  /**
   * Submit a rating for an agent or user
   */
  async submitRating(
    rater: KeyPairSigner,
    submission: IRatingSubmission
  ): Promise<{
    ratingId: Address;
    signature: string;
    impactOnScore: number;
  }> {
    try {
      console.log(`⭐ Submitting ${submission.category} rating of ${submission.score} for ${submission.targetAddress}`);

      // Validate rating submission
      this.validateRatingSubmission(submission);

      // Generate rating ID
      const ratingId = `rating_${Date.now()}_${Math.random().toString(36).substr(2, 9)}` as Address;

      // Calculate the weight of this rating based on rater's credibility
      const raterCredibility = await this.calculateRaterCredibility(rater.address);
      const ratingWeight = Math.min(Math.max(raterCredibility / 100, 0.1), 1.0);

      // In a real implementation, this would call a submitRating smart contract instruction
      const mockInstruction = {
        programAddress: this._programId,
        accounts: [
          { address: ratingId, role: 'writable' as const },
          { address: submission.targetAddress, role: 'writable' as const },
          { address: rater.address, role: 'writable_signer' as const },
        ],
        data: new Uint8Array([1, 2, 3]) // Mock instruction data
      };

      const sendTransactionFactory = sendAndConfirmTransactionFactory('https://api.devnet.solana.com');
      const result = await sendTransactionFactory([mockInstruction], [rater]);
      const signature = result.signature;

      // Calculate the impact on target's overall score
      const impactOnScore = await this.calculateScoreImpact(submission.targetAddress, submission.score, ratingWeight);

      console.log('✅ Rating submitted successfully:', { 
        ratingId, 
        signature, 
        weight: ratingWeight,
        impact: impactOnScore 
      });

      return { ratingId, signature, impactOnScore };
    } catch (error) {
      throw new Error(`Rating submission failed: ${String(error)}`);
    }
  }

  /**
   * Get comprehensive reputation profile for an address
   */
  async getReputationProfile(address: Address): Promise<IReputationProfile> {
    try {
      console.log(`📊 Retrieving reputation profile for: ${address}`);

      // In a real implementation, this would fetch from blockchain and compute aggregates
      const profile = await this.generateReputationProfile(address);
      
      console.log(`✅ Reputation profile retrieved: ${profile.overallScore}/5 (${profile.tier})`);
      return profile;
    } catch (error) {
      throw new Error(`Failed to get reputation profile: ${String(error)}`);
    }
  }

  /**
   * Get detailed ratings for an address with filtering
   */
  async getRatings(
    address: Address,
    filters: {
      categories?: RatingCategory[];
      sources?: RatingSource[];
      minScore?: number;
      maxScore?: number;
      limit?: number;
      offset?: number;
    } = {}
  ): Promise<{
    ratings: IRating[];
    totalCount: number;
    averageScore: number;
    distribution: Record<number, number>; // Score distribution (1-5)
  }> {
    try {
      console.log(`📋 Getting ratings for ${address} with filters:`, filters);

      // Get all ratings for the address
      const allRatings = await this.getAllRatings(address);
      
      // Apply filters
      let filteredRatings = this.applyRatingFilters(allRatings, filters);
      
      // Apply pagination
      const limit = filters.limit || 50;
      const offset = filters.offset || 0;
      const paginatedRatings = filteredRatings.slice(offset, offset + limit);
      
      // Calculate statistics
      const averageScore = filteredRatings.length > 0 
        ? filteredRatings.reduce((sum, r) => sum + r.score, 0) / filteredRatings.length 
        : 0;
      
      const distribution = this.calculateScoreDistribution(filteredRatings);

      return {
        ratings: paginatedRatings,
        totalCount: filteredRatings.length,
        averageScore,
        distribution,
      };
    } catch (error) {
      throw new Error(`Failed to get ratings: ${String(error)}`);
    }
  }

  /**
   * Search agents by reputation criteria
   */
  async searchByReputation(
    filters: IReputationFilters = {},
    limit: number = 50
  ): Promise<{
    profiles: IReputationProfile[];
    totalCount: number;
    searchMetadata: {
      executionTime: number;
      qualityScore: number;
      averageScore: number;
    };
  }> {
    const startTime = Date.now();
    
    try {
      console.log('🔍 Searching agents by reputation criteria:', filters);

      // Get all reputation profiles (in production, this would use efficient indexing)
      const allProfiles = await this.getAllReputationProfiles(1000);
      
      // Apply filters
      const filteredProfiles = this.applyReputationFilters(allProfiles, filters);
      
      // Sort results
      const sortedProfiles = this.sortReputationResults(filteredProfiles, filters);
      
      // Apply limit
      const limitedProfiles = sortedProfiles.slice(0, limit);
      
      const executionTime = Date.now() - startTime;
      const averageScore = limitedProfiles.length > 0 
        ? limitedProfiles.reduce((sum, p) => sum + p.overallScore, 0) / limitedProfiles.length 
        : 0;

      return {
        profiles: limitedProfiles,
        totalCount: filteredProfiles.length,
        searchMetadata: {
          executionTime,
          qualityScore: this.calculateSearchQuality(limitedProfiles, filters),
          averageScore,
        },
      };
    } catch (error) {
      throw new Error(`Reputation search failed: ${String(error)}`);
    }
  }

  /**
   * Generate comprehensive reputation analytics
   */
  async getReputationAnalytics(address: Address): Promise<IReputationAnalytics> {
    try {
      console.log(`📈 Generating reputation analytics for: ${address}`);

      const profile = await this.getReputationProfile(address);
      const recentRatings = await this.getRecentRatings(address, 30); // Last 30 days
      const peerProfiles = await this.getPeerProfiles(address);

      // Calculate performance trend
      const performanceTrend = this.calculatePerformanceTrend(profile, recentRatings);
      
      // Peer comparison analysis
      const peerComparison = this.calculatePeerComparison(profile, peerProfiles);
      
      // Market position analysis
      const marketPosition = this.analyzeMarketPosition(profile, peerProfiles);
      
      // Generate actionable insights
      const actionableInsights = this.generateActionableInsights(profile, recentRatings, peerComparison);
      
      // Risk assessment
      const riskAssessment = this.assessRisks(profile, recentRatings);

      return {
        performanceTrend,
        peerComparison,
        marketPosition,
        actionableInsights,
        riskAssessment,
      };
    } catch (error) {
      throw new Error(`Analytics generation failed: ${String(error)}`);
    }
  }

  /**
   * Endorse someone's skills
   */
  async endorseSkill(
    endorser: KeyPairSigner,
    targetAddress: Address,
    skill: string,
    evidence?: string
  ): Promise<{
    endorsementId: Address;
    signature: string;
  }> {
    try {
      console.log(`👍 Endorsing ${skill} for ${targetAddress}`);

      const endorsementId = `endorsement_${Date.now()}_${Math.random().toString(36).substr(2, 9)}` as Address;

      // In a real implementation, this would call an endorsement smart contract instruction
      const mockInstruction = {
        programAddress: this._programId,
        accounts: [
          { address: endorsementId, role: 'writable' as const },
          { address: targetAddress, role: 'writable' as const },
          { address: endorser.address, role: 'writable_signer' as const },
        ],
        data: new Uint8Array([4, 5, 6]) // Mock instruction data
      };

      const sendTransactionFactory = sendAndConfirmTransactionFactory('https://api.devnet.solana.com');
      const result = await sendTransactionFactory([mockInstruction], [endorser]);
      const signature = result.signature;

      console.log('✅ Skill endorsed:', { endorsementId, signature });
      return { endorsementId, signature };
    } catch (error) {
      throw new Error(`Skill endorsement failed: ${String(error)}`);
    }
  }

  /**
   * Report inappropriate rating or behavior
   */
  async reportRating(
    reporter: KeyPairSigner,
    ratingId: Address,
    reason: 'spam' | 'fake' | 'inappropriate' | 'malicious' | 'other',
    details?: string
  ): Promise<{
    reportId: Address;
    signature: string;
  }> {
    try {
      console.log(`🚨 Reporting rating ${ratingId} for: ${reason}`);

      const reportId = `report_${Date.now()}_${Math.random().toString(36).substr(2, 9)}` as Address;

      // In a real implementation, this would call a report smart contract instruction
      const mockInstruction = {
        programAddress: this._programId,
        accounts: [
          { address: reportId, role: 'writable' as const },
          { address: ratingId, role: 'writable' as const },
          { address: reporter.address, role: 'writable_signer' as const },
        ],
        data: new Uint8Array([7, 8, 9]) // Mock instruction data
      };

      const sendTransactionFactory = sendAndConfirmTransactionFactory('https://api.devnet.solana.com');
      const result = await sendTransactionFactory([mockInstruction], [reporter]);
      const signature = result.signature;

      console.log('✅ Rating reported:', { reportId, signature });
      return { reportId, signature };
    } catch (error) {
      throw new Error(`Rating report failed: ${String(error)}`);
    }
  }

  /**
   * Get leaderboard of top-rated agents
   */
  async getLeaderboard(
    category: RatingCategory | 'overall' = 'overall',
    timeframe: 'week' | 'month' | 'quarter' | 'year' | 'all' = 'month',
    limit: number = 100
  ): Promise<Array<{
    address: Address;
    score: number;
    rank: number;
    tier: ReputationTier;
    totalRatings: number;
    trend: 'up' | 'down' | 'stable';
  }>> {
    try {
      console.log(`🏆 Getting ${category} leaderboard for ${timeframe} (top ${limit})`);

      const allProfiles = await this.getAllReputationProfiles(1000);
      
      // Filter by timeframe if applicable
      const filteredProfiles = this.filterByTimeframe(allProfiles, timeframe);
      
      // Sort by specified category
      const sortedProfiles = filteredProfiles.sort((a, b) => {
        const scoreA = category === 'overall' ? a.overallScore : a.categoryScores[category]?.score || 0;
        const scoreB = category === 'overall' ? b.overallScore : b.categoryScores[category]?.score || 0;
        return scoreB - scoreA;
      });

      // Create leaderboard entries
      return sortedProfiles.slice(0, limit).map((profile, index) => ({
        address: profile.address,
        score: category === 'overall' ? profile.overallScore : profile.categoryScores[category]?.score || 0,
        rank: index + 1,
        tier: profile.tier,
        totalRatings: profile.totalRatings,
        trend: this.calculateTrend(profile),
      }));
    } catch (error) {
      throw new Error(`Leaderboard generation failed: ${String(error)}`);
    }
  }

  /**
   * Private helper methods
   */
  
  private validateRatingSubmission(submission: IRatingSubmission): void {
    if (submission.score < 1 || submission.score > 5) {
      throw new Error('Rating score must be between 1 and 5');
    }
    
    if (submission.comment && submission.comment.length > 500) {
      throw new Error('Comment must be 500 characters or less');
    }
    
    if (submission.projectValue && submission.projectValue < 0n) {
      throw new Error('Project value cannot be negative');
    }
  }

  private async calculateRaterCredibility(raterAddress: Address): Promise<number> {
    // In a real implementation, this would calculate based on rater's own reputation
    // For now, simulate based on hash of address
    const hash = raterAddress.split('').reduce((acc, char) => acc + char.charCodeAt(0), 0);
    return 50 + (hash % 50); // 50-100 credibility score
  }

  private async calculateScoreImpact(targetAddress: Address, newScore: number, weight: number): Promise<number> {
    // Simulate calculating the impact of a new rating on overall score
    const currentProfile = await this.generateReputationProfile(targetAddress);
    const totalWeight = currentProfile.totalRatings + weight;
    const newAverage = (currentProfile.overallScore * currentProfile.totalRatings + newScore * weight) / totalWeight;
    return newAverage - currentProfile.overallScore;
  }

  private async generateReputationProfile(address: Address): Promise<IReputationProfile> {
    // Generate mock reputation profile
    const hash = address.split('').reduce((acc, char) => acc + char.charCodeAt(0), 0);
    const overallScore = 3.0 + (hash % 200) / 100; // 3.0-5.0 range
    const totalRatings = Math.floor(hash % 100) + 10;
    const reputationPoints = Math.floor(overallScore * totalRatings * 10);
    
    const tier: ReputationTier = 
      reputationPoints >= 10000 ? 'legendary' :
      reputationPoints >= 5000 ? 'diamond' :
      reputationPoints >= 2500 ? 'platinum' :
      reputationPoints >= 1000 ? 'gold' :
      reputationPoints >= 500 ? 'silver' :
      reputationPoints >= 100 ? 'bronze' : 'newcomer';

    const categoryScores: Record<RatingCategory, any> = {} as any;
    const categories: RatingCategory[] = [
      'overall', 'technical_skill', 'communication', 'reliability', 
      'innovation', 'collaboration', 'cost_effectiveness', 'responsiveness',
      'quality', 'professionalism'
    ];
    
    categories.forEach(category => {
      const categoryHash = (hash + category.length) % 100;
      categoryScores[category] = {
        score: 3.0 + categoryHash / 50, // 3.0-5.0 range
        count: Math.floor(categoryHash / 10) + 1,
        trend: categoryHash % 3 === 0 ? 'improving' : categoryHash % 3 === 1 ? 'stable' : 'declining',
      };
    });

    return {
      address,
      overallScore,
      totalRatings,
      reputationPoints,
      tier,
      categoryScores,
      completionRate: 85 + (hash % 15), // 85-100%
      averageResponseTime: Math.floor(hash % 3600000), // 0-1 hour
      onTimeDeliveryRate: 75 + (hash % 25), // 75-100%
      disputeRate: (hash % 10), // 0-10%
      totalTransactions: Math.floor(hash % 500) + 10,
      totalVolume: BigInt(Math.floor(hash % 10000000000)),
      activeDays: Math.floor(hash % 365) + 30,
      lastActiveDate: Date.now() - (hash % 86400000),
      endorsements: [],
      achievements: [],
      riskScore: hash % 30, // 0-30 (low risk)
      flaggedCount: hash % 3,
      suspensionHistory: [],
      isVerified: hash % 3 === 0,
      verificationLevel: hash % 3 === 0 ? 'enhanced' : 'basic',
      kycCompleted: hash % 2 === 0,
      trendingScore: 60 + (hash % 40), // 60-100
      recommendationScore: 70 + (hash % 30), // 70-100
      trustScore: 80 + (hash % 20), // 80-100
      scoreHistory: [],
    };
  }

  private async getAllRatings(address: Address): Promise<IRating[]> {
    // Simulate getting all ratings for an address
    const ratingCount = Math.floor(Math.random() * 50) + 10;
    return Array.from({ length: ratingCount }, (_, i) => {
      const categories: RatingCategory[] = [
        'overall', 'technical_skill', 'communication', 'reliability'
      ];
      const sources: RatingSource[] = [
        'direct_client', 'peer_review', 'escrow_completion', 'verified_transaction'
      ];
      
      return {
        ratingId: `rating_${i + 1}_${Date.now()}` as Address,
        fromAddress: `rater_${i + 1}` as Address,
        toAddress: address,
        category: categories[i % categories.length],
        score: 3 + Math.random() * 2, // 3-5 range
        source: sources[i % sources.length],
        isVerified: Math.random() > 0.3,
        timestamp: Date.now() - Math.random() * 86400000 * 30, // Last 30 days
        weight: 0.5 + Math.random() * 0.5, // 0.5-1.0
        isDisputed: Math.random() > 0.95,
        moderationStatus: 'approved',
        reportCount: 0,
      };
    });
  }

  private applyRatingFilters(ratings: IRating[], filters: any): IRating[] {
    return ratings.filter(rating => {
      if (filters.categories && !filters.categories.includes(rating.category)) return false;
      if (filters.sources && !filters.sources.includes(rating.source)) return false;
      if (filters.minScore && rating.score < filters.minScore) return false;
      if (filters.maxScore && rating.score > filters.maxScore) return false;
      return true;
    });
  }

  private calculateScoreDistribution(ratings: IRating[]): Record<number, number> {
    const distribution: Record<number, number> = { 1: 0, 2: 0, 3: 0, 4: 0, 5: 0 };
    ratings.forEach(rating => {
      const roundedScore = Math.round(rating.score);
      distribution[roundedScore] = (distribution[roundedScore] || 0) + 1;
    });
    return distribution;
  }

  private async getAllReputationProfiles(limit: number): Promise<IReputationProfile[]> {
    // Simulate getting all reputation profiles
    return Array.from({ length: Math.min(limit, 100) }, (_, i) => 
      this.generateReputationProfile(`agent_${i + 1}_${Date.now()}` as Address)
    ).map(async profile => await profile).reduce(async (acc, profile) => {
      const profiles = await acc;
      profiles.push(await profile);
      return profiles;
    }, Promise.resolve([] as IReputationProfile[]));
  }

  private applyReputationFilters(profiles: IReputationProfile[], filters: IReputationFilters): IReputationProfile[] {
    return profiles.filter(profile => {
      // Score filters
      if (filters.minOverallScore && profile.overallScore < filters.minOverallScore) return false;
      if (filters.maxOverallScore && profile.overallScore > filters.maxOverallScore) return false;
      if (filters.minReputationPoints && profile.reputationPoints < filters.minReputationPoints) return false;
      if (filters.tiers && !filters.tiers.includes(profile.tier)) return false;
      
      // Performance filters
      if (filters.minCompletionRate && profile.completionRate < filters.minCompletionRate) return false;
      if (filters.maxDisputeRate && profile.disputeRate > filters.maxDisputeRate) return false;
      if (filters.maxResponseTime && profile.averageResponseTime > filters.maxResponseTime) return false;
      
      // Verification filters
      if (filters.verificationRequired && !profile.isVerified) return false;
      if (filters.kycRequired && !profile.kycCompleted) return false;
      
      // Activity filters
      if (filters.minTotalTransactions && profile.totalTransactions < filters.minTotalTransactions) return false;
      if (filters.minTotalVolume && profile.totalVolume < filters.minTotalVolume) return false;
      if (filters.activeWithinDays) {
        const daysSinceActive = (Date.now() - profile.lastActiveDate) / (24 * 60 * 60 * 1000);
        if (daysSinceActive > filters.activeWithinDays) return false;
      }
      
      // Risk filters
      if (filters.maxRiskScore && profile.riskScore > filters.maxRiskScore) return false;
      if (filters.excludeFlagged && profile.flaggedCount > 0) return false;
      if (filters.excludeSuspended && profile.suspensionHistory.length > 0) return false;
      
      return true;
    });
  }

  private sortReputationResults(profiles: IReputationProfile[], filters: IReputationFilters): IReputationProfile[] {
    const sortedProfiles = [...profiles];
    
    switch (filters.sortBy) {
      case 'overall_score':
        sortedProfiles.sort((a, b) => b.overallScore - a.overallScore);
        break;
      case 'reputation_points':
        sortedProfiles.sort((a, b) => b.reputationPoints - a.reputationPoints);
        break;
      case 'total_ratings':
        sortedProfiles.sort((a, b) => b.totalRatings - a.totalRatings);
        break;
      case 'completion_rate':
        sortedProfiles.sort((a, b) => b.completionRate - a.completionRate);
        break;
      case 'recent_activity':
        sortedProfiles.sort((a, b) => b.lastActiveDate - a.lastActiveDate);
        break;
      default:
        sortedProfiles.sort((a, b) => b.overallScore - a.overallScore);
    }
    
    if (filters.sortOrder === 'asc') {
      sortedProfiles.reverse();
    }
    
    return sortedProfiles;
  }

  private calculateSearchQuality(profiles: IReputationProfile[], filters: IReputationFilters): number {
    if (profiles.length === 0) return 0;
    
    const avgScore = profiles.reduce((sum, p) => sum + p.overallScore, 0) / profiles.length;
    const diversityBonus = Math.min(profiles.length / 50, 1) * 10;
    const qualityBonus = avgScore >= 4.0 ? 15 : avgScore >= 3.5 ? 10 : 5;
    
    return Math.min(Math.round(avgScore * 20 + diversityBonus + qualityBonus), 100);
  }

  private async getRecentRatings(address: Address, days: number): Promise<IRating[]> {
    const allRatings = await this.getAllRatings(address);
    const cutoffTime = Date.now() - (days * 24 * 60 * 60 * 1000);
    return allRatings.filter(rating => rating.timestamp >= cutoffTime);
  }

  private async getPeerProfiles(address: Address): Promise<IReputationProfile[]> {
    // Get similar profiles for comparison
    const allProfiles = await this.getAllReputationProfiles(50);
    return allProfiles.filter(profile => profile.address !== address).slice(0, 20);
  }

  private calculatePerformanceTrend(profile: IReputationProfile, recentRatings: IRating[]): IReputationAnalytics['performanceTrend'] {
    const recentAvg = recentRatings.length > 0 
      ? recentRatings.reduce((sum, r) => sum + r.score, 0) / recentRatings.length 
      : profile.overallScore;
    
    const changePercentage = ((recentAvg - profile.overallScore) / profile.overallScore) * 100;
    
    return {
      period: 'month',
      direction: changePercentage > 5 ? 'improving' : changePercentage < -5 ? 'declining' : 'stable',
      changePercentage,
      keyDrivers: ['Recent client feedback', 'Project completion rate', 'Response time improvements'],
    };
  }

  private calculatePeerComparison(profile: IReputationProfile, peers: IReputationProfile[]): IReputationAnalytics['peerComparison'] {
    const scores = peers.map(p => p.overallScore).sort((a, b) => a - b);
    const percentile = (scores.filter(s => s <= profile.overallScore).length / scores.length) * 100;
    const averagePeerScore = scores.reduce((sum, s) => sum + s, 0) / scores.length;
    
    return {
      percentile,
      averagePeerScore,
      strengthAreas: ['technical_skill', 'quality', 'reliability'],
      improvementAreas: ['communication', 'responsiveness'],
    };
  }

  private analyzeMarketPosition(profile: IReputationProfile, peers: IReputationProfile[]): IReputationAnalytics['marketPosition'] {
    const topPerformers = peers.filter(p => p.overallScore >= 4.5).length;
    const demandLevel = profile.overallScore >= 4.5 ? 'high' : profile.overallScore >= 4.0 ? 'medium' : 'low';
    
    return {
      demandLevel,
      priceMultiplier: 1.0 + (profile.overallScore - 3.0) * 0.5, // 1.0x to 2.0x
      competitorCount: peers.length,
      marketShare: (profile.totalTransactions / peers.reduce((sum, p) => sum + p.totalTransactions, 0)) * 100,
    };
  }

  private generateActionableInsights(
    profile: IReputationProfile, 
    recentRatings: IRating[], 
    peerComparison: any
  ): IReputationAnalytics['actionableInsights'] {
    const insights: IReputationAnalytics['actionableInsights'] = [];
    
    if (profile.averageResponseTime > 3600000) { // > 1 hour
      insights.push({
        priority: 'high',
        category: 'responsiveness',
        recommendation: 'Improve response time to under 1 hour to increase ratings',
        potentialImpact: '+0.3 to +0.5 points in overall score',
        estimatedEffort: 'medium',
      });
    }
    
    if (profile.completionRate < 90) {
      insights.push({
        priority: 'high',
        category: 'reliability',
        recommendation: 'Focus on project completion rate to build trust',
        potentialImpact: '+0.2 to +0.4 points in reliability score',
        estimatedEffort: 'high',
      });
    }
    
    return insights;
  }

  private assessRisks(profile: IReputationProfile, recentRatings: IRating[]): IReputationAnalytics['riskAssessment'] {
    const recentDisputes = recentRatings.filter(r => r.isDisputed).length;
    const riskLevel = 
      profile.riskScore > 70 || recentDisputes > 2 ? 'critical' :
      profile.riskScore > 50 || recentDisputes > 1 ? 'high' :
      profile.riskScore > 30 ? 'medium' : 'low';
    
    return {
      currentRiskLevel: riskLevel,
      riskFactors: profile.riskScore > 50 ? ['High dispute rate', 'Low completion rate'] : ['Minor rating fluctuations'],
      mitigationSuggestions: ['Improve communication', 'Set clearer expectations', 'Provide regular updates'],
      insurabilityScore: Math.max(0, 100 - profile.riskScore),
    };
  }

  private filterByTimeframe(profiles: IReputationProfile[], timeframe: string): IReputationProfile[] {
    // For mock implementation, return all profiles
    // In real implementation, would filter based on timeframe
    return profiles;
  }

  private calculateTrend(profile: IReputationProfile): 'up' | 'down' | 'stable' {
    // Simulate trend calculation
    return profile.trendingScore > 80 ? 'up' : profile.trendingScore < 60 ? 'down' : 'stable';
  }
}