/**
 * Performance Analytics Engine
 * Tracks render time, memory usage, and network performance
 */
export interface PerformanceMetrics {
    renderTime: {
        average: number;
        min: number;
        max: number;
        count: number;
    };
    memoryUsage: {
        current: number;
        peak: number;
        trend: 'increasing' | 'stable' | 'decreasing';
    };
    networkPerformance: {
        averageLatency: number;
        averageSpeed: number;
        failedRequests: number;
    };
    scrollPerformance: {
        averageFPS: number;
        droppedFrames: number;
        jankCount: number;
    };
}
export declare class PerformanceAnalytics {
    private renderTimeHistory;
    private memoryHistory;
    private networkLatencyHistory;
    private frameTimestamps;
    private droppedFrames;
    private jankCount;
    private readonly MAX_HISTORY;
    private readonly JANK_THRESHOLD;
    /**
     * Track render time for an item
     */
    trackRenderTime(renderTime: number): void;
    /**
     * Track memory usage
     */
    trackMemoryUsage(memoryMB: number): void;
    /**
     * Track network request latency
     */
    trackNetworkLatency(latency: number): void;
    /**
     * Track frame timing for FPS calculation
     */
    trackFrame(): void;
    /**
     * Get current FPS
     */
    getCurrentFPS(): number;
    /**
     * Get comprehensive performance metrics
     */
    getMetrics(): PerformanceMetrics;
    /**
     * Get average from array
     */
    private getAverage;
    /**
     * Get trend from array
     */
    private getTrend;
    /**
     * Reset all metrics
     */
    reset(): void;
    /**
     * Get performance score (0-100)
     */
    getPerformanceScore(): number;
    /**
     * Get optimization recommendations
     */
    getRecommendations(): string[];
}
export default PerformanceAnalytics;
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