import { PerformanceMetric, UsageMetric, PerformanceInsight, UsagePattern, SystemHealth } from '../utils/types.js';
import { AnalyticsStorage } from './storage.js';
/**
 * Metrics Collector
 * Collects and analyzes system performance and usage metrics
 */
export declare class MetricsCollector {
    private storage;
    private operationStartTimes;
    private systemStartTime;
    constructor(storage: AnalyticsStorage);
    /**
     * Start timing an operation
     */
    startOperation(operationId: string, operation: string): void;
    /**
     * End timing an operation and record performance metric
     */
    endOperation(operationId: string, operation: string, success: boolean, errorType?: string, metadata?: Record<string, any>): number;
    /**
     * Record a usage event
     */
    recordUsage(subagent: string, sessionId: string, operation: string, success: boolean, userContext?: {
        taskType?: string;
        urgency?: string;
        complexity?: 'low' | 'medium' | 'high';
    }): void;
    /**
     * Analyze performance trends for specific operations
     */
    analyzeOperationPerformance(operation: string, days?: number): PerformanceInsight;
    private createEmptyPerformanceInsight;
    private analyzeErrorPatterns;
    private generateOptimizationSuggestions;
    private calculatePerformanceTrend;
    /**
     * Analyze usage patterns for chatmodes
     */
    analyzeUsagePatterns(subagent?: string, days?: number): UsagePattern[];
    private analyzeSpecificSubagentUsage;
    private createEmptyUsagePattern;
    private findMode;
    /**
     * Get current system health metrics
     */
    getSystemHealth(): SystemHealth;
    private determineHealthStatus;
    /**
     * Get performance summary for all operations
     */
    getPerformanceSummary(days?: number): Record<string, PerformanceInsight>;
    /**
     * Export metrics for external analysis
     */
    exportMetrics(operation?: string, days?: number): {
        performance: PerformanceMetric[];
        usage: UsageMetric[];
        summary: any;
    };
}