import { default as React, ReactNode } from 'react';
import { PerformanceObservatoryContext, PerformanceObservatoryContextValue } from '../contexts/PerformanceObservatoryContext';
import { VitalMetricEntry, VitalsSnapshot, BudgetViolation } from './vitals';
/**
 * Resource statistics
 */
interface ResourceStats {
    total: number;
    totalSize: number;
    totalDuration: number;
    byType: Record<string, {
        count: number;
        size: number;
        duration: number;
    }>;
    slowResources: PerformanceResourceTiming[];
}
/**
 * Long task entry
 */
interface LongTaskEntry {
    startTime: number;
    duration: number;
    name: string;
}
/**
 * Props for PerformanceObservatory
 */
export interface PerformanceObservatoryProps {
    /** Show in development only */
    devOnly?: boolean;
    /** Initial collapsed state */
    defaultCollapsed?: boolean;
    /** Position on screen */
    position?: 'bottom-right' | 'bottom-left' | 'top-right' | 'top-left';
    /** Enable analytics reporting */
    reportToAnalytics?: boolean;
    /** Analytics endpoint */
    analyticsEndpoint?: string;
    /** Sample rate for collection */
    sampleRate?: number;
    /** Enable debug mode */
    debug?: boolean;
    /** Custom z-index */
    zIndex?: number;
}
/**
 * Props for PerformanceProvider
 */
export interface PerformanceProviderProps {
    children: ReactNode;
    /** Collector configuration */
    reportToAnalytics?: boolean;
    analyticsEndpoint?: string;
    sampleRate?: number;
    debug?: boolean;
    /** Callback on metric update */
    onMetric?: (metric: VitalMetricEntry, snapshot: VitalsSnapshot) => void;
    /** Callback on budget violation */
    onViolation?: (violation: BudgetViolation) => void;
}
/**
 * Hook to access performance observatory context
 */
export declare function usePerformanceObservatory(): PerformanceObservatoryContextValue;
/**
 * Performance monitoring provider that collects Web Vitals and resource metrics
 */
export declare function PerformanceProvider({ children, reportToAnalytics, analyticsEndpoint, sampleRate, debug, onMetric, onViolation, }: PerformanceProviderProps): React.JSX.Element;
/**
 * Performance Observatory dashboard component
 *
 * @example
 * ```tsx
 * <PerformanceProvider>
 *   <App />
 *   <PerformanceObservatory devOnly position="bottom-right" />
 * </PerformanceProvider>
 * ```
 */
export declare function PerformanceObservatory({ devOnly, defaultCollapsed, position, zIndex, }: PerformanceObservatoryProps): React.JSX.Element | null;
export { PerformanceObservatoryContext, type PerformanceObservatoryContextValue, type ResourceStats, type LongTaskEntry, };