devflow-ai/src/swarm/result-aggregator.ts

Enterprise-grade AI agent orchestration with swarm management UI dashboard

/**
 * Advanced Result Aggregation and Reporting System
 * 
 * This module provides comprehensive result aggregation, analysis, and reporting
 * capabilities for swarm operations. It collects outputs from multiple agents,
 * performs quality analysis, generates insights, and creates detailed reports.
 */

import { EventEmitter } from 'node:events';
import { performance } from 'node:perf_hooks';
import { Logger } from '../core/logger.js';
import { generateId } from '../utils/helpers.js';
import { MemoryManager } from '../memory/manager.js';
import {
  SwarmResults,
  SwarmMetrics,
  SwarmExecutionContext,
  TaskResult,
  SwarmTask,
  SwarmAgent,
  SwarmObjective,
  TaskDefinition,
  AgentState,
} from './types.js';

export interface AggregationConfig {
  enableQualityAnalysis: boolean;
  enableInsightGeneration: boolean;
  enableRecommendations: boolean;
  enableVisualization: boolean;
  qualityThreshold: number;
  confidenceThreshold: number;
  maxReportSize: number;
  reportFormats: string[];
  enableRealTimeUpdates: boolean;
  aggregationInterval: number;
}

export interface QualityMetrics {
  accuracy: number;
  completeness: number;
  consistency: number;
  relevance: number;
  timeliness: number;
  reliability: number;
  usability: number;
  overall: number;
}

export interface AggregatedResult {
  id: string;
  swarmId: string;
  timestamp: Date;
  
  // Raw data
  taskResults: Map<string, TaskResult>;
  agentOutputs: Map<string, any[]>;
  intermediateResults: any[];
  
  // Processed data
  consolidatedOutput: any;
  keyFindings: string[];
  insights: Insight[];
  recommendations: Recommendation[];
  
  // Quality assessment
  qualityMetrics: QualityMetrics;
  confidenceScore: number;
  reliabilityScore: number;
  
  // Metadata
  processingTime: number;
  dataPoints: number;
  sourcesCount: number;
  validationStatus: 'pending' | 'validated' | 'rejected';
}

export interface Insight {
  id: string;
  type: 'pattern' | 'trend' | 'anomaly' | 'correlation' | 'prediction';
  title: string;
  description: string;
  confidence: number;
  impact: 'low' | 'medium' | 'high' | 'critical';
  evidence: any[];
  metadata: {
    source: string[];
    methodology: string;
    timestamp: Date;
  };
}

export interface Recommendation {
  id: string;
  category: 'improvement' | 'optimization' | 'risk-mitigation' | 'next-steps';
  priority: 'low' | 'medium' | 'high' | 'critical';
  title: string;
  description: string;
  rationale: string;
  expectedImpact: string;
  estimatedEffort: 'low' | 'medium' | 'high';
  timeline: string;
  dependencies: string[];
  risks: string[];
}

export interface ResultReport {
  id: string;
  swarmId: string;
  executionSummary: ExecutionSummary;
  results: AggregatedResult;
  qualityAnalysis: QualityAnalysis;
  performance: PerformanceAnalysis;
  insights: Insight[];
  recommendations: Recommendation[];
  appendices: ReportAppendix[];
  metadata: {
    generatedAt: Date;
    version: string;
    format: string;
    size: number;
  };
}

export interface ExecutionSummary {
  objective: string;
  strategy: string;
  duration: number;
  tasksTotal: number;
  tasksCompleted: number;
  tasksFailed: number;
  agentsUsed: number;
  resourcesConsumed: Record<string, number>;
  successRate: number;
}

export interface QualityAnalysis {
  overallScore: number;
  dimensionScores: QualityMetrics;
  strengthAreas: string[];
  improvementAreas: string[];
  qualityGates: {
    name: string;
    status: 'passed' | 'failed' | 'warning';
    score: number;
    threshold: number;
  }[];
}

export interface PerformanceAnalysis {
  efficiency: number;
  throughput: number;
  latency: number;
  resourceUtilization: Record<string, number>;
  bottlenecks: string[];
  optimizationOpportunities: string[];
}

export interface ReportAppendix {
  title: string;
  type: 'data' | 'logs' | 'charts' | 'raw-output';
  content: any;
  size: number;
}

export class SwarmResultAggregator extends EventEmitter {
  private logger: Logger;
  private config: AggregationConfig;
  private memoryManager: MemoryManager;
  private activeAggregations: Map<string, AggregationSession> = new Map();
  private resultCache: Map<string, AggregatedResult> = new Map();
  private processingQueue: ProcessingQueue;

  constructor(
    config: Partial<AggregationConfig> = {},
    memoryManager: MemoryManager
  ) {
    super();
    
    this.logger = new Logger('SwarmResultAggregator');
    this.config = this.createDefaultConfig(config);
    this.memoryManager = memoryManager;
    this.processingQueue = new ProcessingQueue(this.config.aggregationInterval);

    this.setupEventHandlers();
  }

  /**
   * Initialize the result aggregator
   */
  async initialize(): Promise<void> {
    this.logger.info('Initializing swarm result aggregator...');

    try {
      await this.processingQueue.start();

      this.logger.info('Swarm result aggregator initialized successfully');
      this.emit('initialized');

    } catch (error) {
      this.logger.error('Failed to initialize result aggregator', error);
      throw error;
    }
  }

  /**
   * Shutdown the aggregator gracefully
   */
  async shutdown(): Promise<void> {
    this.logger.info('Shutting down swarm result aggregator...');

    try {
      // Complete active aggregations
      const completionPromises = Array.from(this.activeAggregations.values())
        .map(session => session.finalize());
      
      await Promise.allSettled(completionPromises);

      await this.processingQueue.stop();
      
      this.logger.info('Swarm result aggregator shut down successfully');
      this.emit('shutdown');

    } catch (error) {
      this.logger.error('Error during result aggregator shutdown', error);
      throw error;
    }
  }

  /**
   * Start aggregating results for a swarm execution
   */
  async startAggregation(context: SwarmExecutionContext): Promise<string> {
    const aggregationId = generateId('aggregation');
    
    this.logger.info('Starting result aggregation', {
      aggregationId,
      swarmId: context.swarmId.id,
      taskCount: context.tasks.size,
      agentCount: context.agents.size,
    });

    const session = new AggregationSession(
      aggregationId,
      context,
      this.config,
      this.logger,
      this.memoryManager
    );

    this.activeAggregations.set(aggregationId, session);

    // Start real-time processing if enabled
    if (this.config.enableRealTimeUpdates) {
      session.startRealTimeProcessing();
    }

    this.emit('aggregation:started', {
      aggregationId,
      swarmId: context.swarmId.id,
    });

    return aggregationId;
  }

  /**
   * Add task result to aggregation
   */
  async addTaskResult(
    aggregationId: string,
    taskId: string,
    result: TaskResult
  ): Promise<void> {
    const session = this.activeAggregations.get(aggregationId);
    if (!session) {
      throw new Error(`Aggregation session not found: ${aggregationId}`);
    }

    await session.addTaskResult(taskId, result);

    this.emit('result:added', {
      aggregationId,
      taskId,
      success: result.validated,
    });
  }

  /**
   * Add agent output to aggregation
   */
  async addAgentOutput(
    aggregationId: string,
    agentId: string,
    output: any
  ): Promise<void> {
    const session = this.activeAggregations.get(aggregationId);
    if (!session) {
      throw new Error(`Aggregation session not found: ${aggregationId}`);
    }

    await session.addAgentOutput(agentId, output);

    this.emit('output:added', {
      aggregationId,
      agentId,
    });
  }

  /**
   * Finalize aggregation and generate comprehensive results
   */
  async finalizeAggregation(
    aggregationId: string
  ): Promise<AggregatedResult> {
    const session = this.activeAggregations.get(aggregationId);
    if (!session) {
      throw new Error(`Aggregation session not found: ${aggregationId}`);
    }

    this.logger.info('Finalizing result aggregation', { aggregationId });

    try {
      const result = await session.finalize();
      
      // Cache result
      this.resultCache.set(aggregationId, result);

      // Store in memory
      await this.storeAggregatedResult(result);

      this.logger.info('Result aggregation finalized', {
        aggregationId,
        qualityScore: result.qualityMetrics.overall,
        confidenceScore: result.confidenceScore,
        insightCount: result.insights.length,
        recommendationCount: result.recommendations.length,
      });

      this.emit('aggregation:completed', {
        aggregationId,
        result,
      });

      return result;

    } finally {
      // Clean up session
      this.activeAggregations.delete(aggregationId);
    }
  }

  /**
   * Generate comprehensive report from aggregated results
   */
  async generateReport(
    aggregationId: string,
    format: 'json' | 'markdown' | 'html' | 'pdf' = 'json'
  ): Promise<ResultReport> {
    const result = this.resultCache.get(aggregationId);
    if (!result) {
      throw new Error(`Aggregated result not found: ${aggregationId}`);
    }

    this.logger.info('Generating result report', {
      aggregationId,
      format,
    });

    const report = await this.createReport(result, format);

    this.emit('report:generated', {
      aggregationId,
      reportId: report.id,
      format,
      size: report.metadata.size,
    });

    return report;
  }

  /**
   * Get current aggregation status
   */
  getAggregationStatus(aggregationId: string): {
    status: 'active' | 'completed' | 'not-found';
    progress?: number;
    results?: Partial<AggregatedResult>;
  } {
    const session = this.activeAggregations.get(aggregationId);
    
    if (session) {
      return {
        status: 'active',
        progress: session.getProgress(),
        results: session.getPartialResults(),
      };
    }

    const cachedResult = this.resultCache.get(aggregationId);
    if (cachedResult) {
      return {
        status: 'completed',
        progress: 100,
        results: cachedResult,
      };
    }

    return { status: 'not-found' };
  }

  /**
   * Get aggregator metrics
   */
  getMetrics(): {
    activeAggregations: number;
    completedAggregations: number;
    totalResults: number;
    averageQualityScore: number;
    averageConfidenceScore: number;
    processingThroughput: number;
  } {
    const completedResults = Array.from(this.resultCache.values());
    
    return {
      activeAggregations: this.activeAggregations.size,
      completedAggregations: this.resultCache.size,
      totalResults: completedResults.length,
      averageQualityScore: this.calculateAverageQuality(completedResults),
      averageConfidenceScore: this.calculateAverageConfidence(completedResults),
      processingThroughput: this.processingQueue.getThroughput(),
    };
  }

  // Private methods

  private async createReport(
    result: AggregatedResult,
    format: string
  ): Promise<ResultReport> {
    const reportId = generateId('report');
    const startTime = performance.now();

    // Get context from memory
    const contextData = await this.memoryManager.retrieve({
      namespace: `swarm:${result.swarmId}`,
      type: 'swarm-definition',
    });

    const context = contextData.length > 0 
      ? JSON.parse(contextData[0].content) 
      : {};

    // Generate report sections
    const executionSummary = this.generateExecutionSummary(result, context);
    const qualityAnalysis = this.generateQualityAnalysis(result);
    const performanceAnalysis = this.generatePerformanceAnalysis(result);
    const appendices = await this.generateAppendices(result);

    const processingTime = performance.now() - startTime;

    const report: ResultReport = {
      id: reportId,
      swarmId: result.swarmId,
      executionSummary,
      results: result,
      qualityAnalysis,
      performance: performanceAnalysis,
      insights: result.insights,
      recommendations: result.recommendations,
      appendices,
      metadata: {
        generatedAt: new Date(),
        version: '1.0.0',
        format,
        size: this.calculateReportSize(result, appendices),
      },
    };

    // Store report
    await this.storeReport(report);

    return report;
  }

  private generateExecutionSummary(
    result: AggregatedResult,
    context: any
  ): ExecutionSummary {
    return {
      objective: context.description || 'Unknown objective',
      strategy: context.strategy || 'auto',
      duration: result.processingTime,
      tasksTotal: result.taskResults.size,
      tasksCompleted: Array.from(result.taskResults.values())
        .filter(r => r.validated).length,
      tasksFailed: Array.from(result.taskResults.values())
        .filter(r => !r.validated).length,
      agentsUsed: result.agentOutputs.size,
      resourcesConsumed: {},
      successRate: this.calculateSuccessRate(result),
    };
  }

  private generateQualityAnalysis(result: AggregatedResult): QualityAnalysis {
    const qualityGates = [
      {
        name: 'Accuracy',
        status: result.qualityMetrics.accuracy >= this.config.qualityThreshold ? 'passed' : 'failed',
        score: result.qualityMetrics.accuracy,
        threshold: this.config.qualityThreshold,
      },
      {
        name: 'Completeness',
        status: result.qualityMetrics.completeness >= this.config.qualityThreshold ? 'passed' : 'failed',
        score: result.qualityMetrics.completeness,
        threshold: this.config.qualityThreshold,
      },
      {
        name: 'Consistency',
        status: result.qualityMetrics.consistency >= this.config.qualityThreshold ? 'passed' : 'failed',
        score: result.qualityMetrics.consistency,
        threshold: this.config.qualityThreshold,
      },
    ] as any[];

    return {
      overallScore: result.qualityMetrics.overall,
      dimensionScores: result.qualityMetrics,
      strengthAreas: this.identifyStrengthAreas(result.qualityMetrics),
      improvementAreas: this.identifyImprovementAreas(result.qualityMetrics),
      qualityGates,
    };
  }

  private generatePerformanceAnalysis(result: AggregatedResult): PerformanceAnalysis {
    return {
      efficiency: this.calculateEfficiency(result),
      throughput: this.calculateThroughput(result),
      latency: this.calculateLatency(result),
      resourceUtilization: {},
      bottlenecks: this.identifyBottlenecks(result),
      optimizationOpportunities: this.identifyOptimizationOpportunities(result),
    };
  }

  private async generateAppendices(result: AggregatedResult): Promise<ReportAppendix[]> {
    const appendices: ReportAppendix[] = [];

    // Raw data appendix
    appendices.push({
      title: 'Raw Task Results',
      type: 'data',
      content: Array.from(result.taskResults.entries()),
      size: this.calculateContentSize(result.taskResults),
    });

    // Agent outputs appendix
    appendices.push({
      title: 'Agent Outputs',
      type: 'data',
      content: Array.from(result.agentOutputs.entries()),
      size: this.calculateContentSize(result.agentOutputs),
    });

    return appendices;
  }

  private async storeAggregatedResult(result: AggregatedResult): Promise<void> {
    await this.memoryManager.store({
      id: `aggregated-result:${result.id}`,
      agentId: 'result-aggregator',
      type: 'aggregated-result',
      content: JSON.stringify(result),
      namespace: `swarm:${result.swarmId}`,
      timestamp: result.timestamp,
      metadata: {
        type: 'aggregated-result',
        qualityScore: result.qualityMetrics.overall,
        confidenceScore: result.confidenceScore,
        dataPoints: result.dataPoints,
      },
    });
  }

  private async storeReport(report: ResultReport): Promise<void> {
    await this.memoryManager.store({
      id: `report:${report.id}`,
      agentId: 'result-aggregator',
      type: 'result-report',
      content: JSON.stringify(report),
      namespace: `swarm:${report.swarmId}`,
      timestamp: report.metadata.generatedAt,
      metadata: {
        type: 'result-report',
        format: report.metadata.format,
        size: report.metadata.size,
      },
    });
  }

  private calculateSuccessRate(result: AggregatedResult): number {
    const total = result.taskResults.size;
    const successful = Array.from(result.taskResults.values())
      .filter(r => r.validated).length;
    
    return total > 0 ? successful / total : 0;
  }

  private calculateEfficiency(result: AggregatedResult): number {
    // Placeholder calculation
    return 0.85;
  }

  private calculateThroughput(result: AggregatedResult): number {
    // Placeholder calculation
    return result.dataPoints / (result.processingTime / 1000);
  }

  private calculateLatency(result: AggregatedResult): number {
    // Placeholder calculation
    return result.processingTime / result.dataPoints;
  }

  private identifyStrengthAreas(metrics: QualityMetrics): string[] {
    const strengths: string[] = [];
    const threshold = 0.8;

    if (metrics.accuracy >= threshold) strengths.push('High accuracy in results');
    if (metrics.completeness >= threshold) strengths.push('Comprehensive coverage');
    if (metrics.consistency >= threshold) strengths.push('Consistent output quality');
    if (metrics.timeliness >= threshold) strengths.push('Timely execution');
    if (metrics.reliability >= threshold) strengths.push('Reliable performance');

    return strengths;
  }

  private identifyImprovementAreas(metrics: QualityMetrics): string[] {
    const improvements: string[] = [];
    const threshold = 0.7;

    if (metrics.accuracy < threshold) improvements.push('Accuracy needs improvement');
    if (metrics.completeness < threshold) improvements.push('Coverage gaps identified');
    if (metrics.consistency < threshold) improvements.push('Output consistency issues');
    if (metrics.timeliness < threshold) improvements.push('Execution time optimization needed');
    if (metrics.reliability < threshold) improvements.push('Reliability concerns');

    return improvements;
  }

  private identifyBottlenecks(result: AggregatedResult): string[] {
    // Placeholder analysis
    return [
      'Agent coordination overhead',
      'Task dependency chains',
      'Resource contention',
    ];
  }

  private identifyOptimizationOpportunities(result: AggregatedResult): string[] {
    // Placeholder analysis
    return [
      'Parallel task execution',
      'Caching of intermediate results',
      'Agent specialization',
      'Load balancing improvements',
    ];
  }

  private calculateAverageQuality(results: AggregatedResult[]): number {
    if (results.length === 0) return 0;
    
    const total = results.reduce((sum, r) => sum + r.qualityMetrics.overall, 0);
    return total / results.length;
  }

  private calculateAverageConfidence(results: AggregatedResult[]): number {
    if (results.length === 0) return 0;
    
    const total = results.reduce((sum, r) => sum + r.confidenceScore, 0);
    return total / results.length;
  }

  private calculateContentSize(content: any): number {
    return JSON.stringify(content).length;
  }

  private calculateReportSize(result: AggregatedResult, appendices: ReportAppendix[]): number {
    let size = JSON.stringify(result).length;
    size += appendices.reduce((sum, a) => sum + a.size, 0);
    return size;
  }

  private createDefaultConfig(config: Partial<AggregationConfig>): AggregationConfig {
    return {
      enableQualityAnalysis: true,
      enableInsightGeneration: true,
      enableRecommendations: true,
      enableVisualization: false,
      qualityThreshold: 0.8,
      confidenceThreshold: 0.7,
      maxReportSize: 10 * 1024 * 1024, // 10MB
      reportFormats: ['json', 'markdown'],
      enableRealTimeUpdates: true,
      aggregationInterval: 5000, // 5 seconds
      ...config,
    };
  }

  private setupEventHandlers(): void {
    this.on('aggregation:started', (data) => {
      this.logger.info('Aggregation started', data);
    });

    this.on('aggregation:completed', (data) => {
      this.logger.info('Aggregation completed', {
        aggregationId: data.aggregationId,
        qualityScore: data.result.qualityMetrics.overall,
      });
    });

    this.on('report:generated', (data) => {
      this.logger.info('Report generated', data);
    });
  }
}

// Supporting classes

class AggregationSession {
  private id: string;
  private context: SwarmExecutionContext;
  private config: AggregationConfig;
  private logger: Logger;
  private memoryManager: MemoryManager;
  private taskResults: Map<string, TaskResult> = new Map();
  private agentOutputs: Map<string, any[]> = new Map();
  private startTime: Date;
  private isFinalized: boolean = false;

  constructor(
    id: string,
    context: SwarmExecutionContext,
    config: AggregationConfig,
    logger: Logger,
    memoryManager: MemoryManager
  ) {
    this.id = id;
    this.context = context;
    this.config = config;
    this.logger = logger;
    this.memoryManager = memoryManager;
    this.startTime = new Date();
  }

  async addTaskResult(taskId: string, result: TaskResult): Promise<void> {
    this.taskResults.set(taskId, result);
    
    this.logger.debug('Task result added to aggregation', {
      aggregationId: this.id,
      taskId,
      validated: result.validated,
    });
  }

  async addAgentOutput(agentId: string, output: any): Promise<void> {
    if (!this.agentOutputs.has(agentId)) {
      this.agentOutputs.set(agentId, []);
    }
    
    this.agentOutputs.get(agentId)!.push(output);
    
    this.logger.debug('Agent output added to aggregation', {
      aggregationId: this.id,
      agentId,
    });
  }

  startRealTimeProcessing(): void {
    // Implementation for real-time processing
    this.logger.debug('Started real-time processing', { aggregationId: this.id });
  }

  getProgress(): number {
    const totalExpected = this.context.tasks.size;
    const completed = this.taskResults.size;
    
    return totalExpected > 0 ? (completed / totalExpected) * 100 : 0;
  }

  getPartialResults(): Partial<AggregatedResult> {
    return {
      id: this.id,
      swarmId: this.context.swarmId.id,
      timestamp: this.startTime,
      taskResults: this.taskResults,
      agentOutputs: this.agentOutputs,
      dataPoints: this.taskResults.size + this.agentOutputs.size,
      sourcesCount: this.agentOutputs.size,
    };
  }

  async finalize(): Promise<AggregatedResult> {
    if (this.isFinalized) {
      throw new Error('Session already finalized');
    }

    this.logger.info('Finalizing aggregation session', {
      aggregationId: this.id,
      taskResults: this.taskResults.size,
      agentOutputs: this.agentOutputs.size,
    });

    const processingStartTime = performance.now();

    // Consolidate outputs
    const consolidatedOutput = this.consolidateOutputs();
    
    // Extract key findings
    const keyFindings = this.extractKeyFindings();
    
    // Generate insights
    const insights = this.config.enableInsightGeneration 
      ? await this.generateInsights() 
      : [];
    
    // Generate recommendations
    const recommendations = this.config.enableRecommendations 
      ? await this.generateRecommendations() 
      : [];
    
    // Calculate quality metrics
    const qualityMetrics = this.config.enableQualityAnalysis 
      ? this.calculateQualityMetrics() 
      : this.getDefaultQualityMetrics();
    
    // Calculate confidence score
    const confidenceScore = this.calculateConfidenceScore();
    
    const processingTime = performance.now() - processingStartTime;

    const result: AggregatedResult = {
      id: this.id,
      swarmId: this.context.swarmId.id,
      timestamp: this.startTime,
      taskResults: this.taskResults,
      agentOutputs: this.agentOutputs,
      intermediateResults: [],
      consolidatedOutput,
      keyFindings,
      insights,
      recommendations,
      qualityMetrics,
      confidenceScore,
      reliabilityScore: this.calculateReliabilityScore(),
      processingTime,
      dataPoints: this.taskResults.size + this.agentOutputs.size,
      sourcesCount: this.agentOutputs.size,
      validationStatus: 'validated',
    };

    this.isFinalized = true;
    return result;
  }

  private consolidateOutputs(): any {
    // Placeholder implementation
    const outputs: any[] = [];
    
    // Add task results
    for (const result of this.taskResults.values()) {
      if (result.output) {
        outputs.push(result.output);
      }
    }
    
    // Add agent outputs
    for (const agentOutputList of this.agentOutputs.values()) {
      outputs.push(...agentOutputList);
    }
    
    return {
      summary: 'Consolidated output from all agents and tasks',
      data: outputs,
      timestamp: new Date(),
    };
  }

  private extractKeyFindings(): string[] {
    // Placeholder implementation
    return [
      'All primary objectives were addressed',
      'High quality outputs achieved across agents',
      'Effective coordination and collaboration',
      'No critical issues identified',
    ];
  }

  private async generateInsights(): Promise<Insight[]> {
    // Placeholder implementation
    return [
      {
        id: generateId('insight'),
        type: 'pattern',
        title: 'Consistent High Performance',
        description: 'All agents maintained high performance throughout execution',
        confidence: 0.9,
        impact: 'medium',
        evidence: [],
        metadata: {
          source: ['agent-metrics', 'task-results'],
          methodology: 'Statistical analysis',
          timestamp: new Date(),
        },
      },
      {
        id: generateId('insight'),
        type: 'trend',
        title: 'Improving Efficiency Over Time',
        description: 'Task completion times decreased as agents learned',
        confidence: 0.8,
        impact: 'high',
        evidence: [],
        metadata: {
          source: ['performance-metrics'],
          methodology: 'Trend analysis',
          timestamp: new Date(),
        },
      },
    ];
  }

  private async generateRecommendations(): Promise<Recommendation[]> {
    // Placeholder implementation
    return [
      {
        id: generateId('recommendation'),
        category: 'optimization',
        priority: 'medium',
        title: 'Implement Agent Specialization',
        description: 'Specialize agents for specific task types to improve efficiency',
        rationale: 'Analysis shows certain agents perform better on specific task types',
        expectedImpact: '15-20% improvement in task completion time',
        estimatedEffort: 'medium',
        timeline: '2-3 weeks',
        dependencies: ['agent-profiling-system'],
        risks: ['Reduced flexibility in task assignment'],
      },
      {
        id: generateId('recommendation'),
        category: 'improvement',
        priority: 'high',
        title: 'Add Result Validation Layer',
        description: 'Implement automated validation of task results',
        rationale: 'Some inconsistencies detected in output quality',
        expectedImpact: 'Improved result reliability and user confidence',
        estimatedEffort: 'high',
        timeline: '4-6 weeks',
        dependencies: ['validation-framework'],
        risks: ['Increased processing overhead'],
      },
    ];
  }

  private calculateQualityMetrics(): QualityMetrics {
    // Placeholder implementation with realistic calculations
    const successfulTasks = Array.from(this.taskResults.values())
      .filter(r => r.validated).length;
    const totalTasks = this.taskResults.size;
    
    const baseAccuracy = totalTasks > 0 ? successfulTasks / totalTasks : 1;
    
    return {
      accuracy: baseAccuracy,
      completeness: Math.min(baseAccuracy + 0.1, 1),
      consistency: Math.min(baseAccuracy + 0.05, 1),
      relevance: Math.min(baseAccuracy + 0.02, 1),
      timeliness: 0.9, // Placeholder
      reliability: baseAccuracy,
      usability: 0.85, // Placeholder
      overall: (baseAccuracy + 0.9 + 0.85) / 3,
    };
  }

  private getDefaultQualityMetrics(): QualityMetrics {
    return {
      accuracy: 0.8,
      completeness: 0.8,
      consistency: 0.8,
      relevance: 0.8,
      timeliness: 0.8,
      reliability: 0.8,
      usability: 0.8,
      overall: 0.8,
    };
  }

  private calculateConfidenceScore(): number {
    // Base confidence on data availability and quality
    const dataAvailability = this.taskResults.size / Math.max(this.context.tasks.size, 1);
    const resultQuality = Array.from(this.taskResults.values())
      .reduce((sum, r) => sum + (r.validated ? 1 : 0), 0) / Math.max(this.taskResults.size, 1);
    
    return Math.min((dataAvailability + resultQuality) / 2, 1);
  }

  private calculateReliabilityScore(): number {
    // Placeholder implementation
    return 0.9;
  }
}

class ProcessingQueue {
  private interval: number;
  private isRunning: boolean = false;
  private throughputCounter: number = 0;
  private intervalHandle?: NodeJS.Timeout;

  constructor(interval: number) {
    this.interval = interval;
  }

  async start(): Promise<void> {
    if (this.isRunning) return;

    this.isRunning = true;
    this.intervalHandle = setInterval(() => {
      // Process queued items
      this.throughputCounter++;
    }, this.interval);
  }

  async stop(): Promise<void> {
    if (!this.isRunning) return;

    this.isRunning = false;
    if (this.intervalHandle) {
      clearInterval(this.intervalHandle);
    }
  }

  getThroughput(): number {
    return this.throughputCounter;
  }
}

export default SwarmResultAggregator;