export interface VirtualizePlugin {
    name: string;
    version: string;
    hooks?: {
        beforeRender?: (items: any[]) => any[];
        afterRender?: (elements: HTMLElement[]) => void;
        onScroll?: (offset: number) => void;
        onMeasurement?: (index: number, size: number) => void;
    };
    methods?: Record<string, (...args: any[]) => any>;
}
export declare class PluginManager {
    private plugins;
    /**
     * Register a plugin
     */
    register(plugin: VirtualizePlugin): void;
    /**
     * Unregister a plugin
     */
    unregister(name: string): void;
    /**
     * Get registered plugins
     */
    getPlugins(): VirtualizePlugin[];
    /**
     * Call plugin hook
     */
    callHook(hookName: keyof NonNullable<VirtualizePlugin['hooks']>, ...args: any[]): Promise<any[]>;
    /**
     * Call plugin method
     */
    callMethod(pluginName: string, methodName: string, ...args: any[]): any;
}
export declare enum LayoutType {
    LIST = "list",// Traditional 1D list
    GRID = "grid",// Traditional grid
    MASONRY = "masonry",// Pinterest-style masonry
    WATERFALL = "waterfall",// ✨ NEW - Waterfall/cascade
    FEED = "feed",// ✨ NEW - Social media feed
    TIMELINE = "timeline"
}
export interface LayoutConfig {
    type: LayoutType;
    columnCount?: number;
    gapSize?: number;
    itemAspectRatio?: number;
    maxWidth?: number;
    minItemSize?: number;
}
/**
 * Waterfall Layout - Multi-column layout with items filling shortest column
 * Perfect for: Image galleries, product showcases
 */
export declare class WaterfallLayout {
    private columns;
    private gapSize;
    private columnHeights;
    constructor(columns: number, gapSize?: number);
    /**
     * Get position for item
     */
    getItemPosition(_: number, itemHeight: number, width: number): {
        x: number;
        y: number;
        column: number;
    };
    /**
     * Get total height needed
     */
    getTotalHeight(): number;
    /**
     * Reset layout
     */
    reset(): void;
}
/**
 * Feed Layout - Social media feed style (variable width, full-width items)
 * Perfect for: Social feeds, blogs, news
 */
export declare class FeedLayout {
    private itemHeights;
    private itemOffsets;
    private totalHeight;
    /**
     * Record item height
     */
    recordItemHeight(index: number, height: number): void;
    /**
     * Get item offset and height
     */
    getItemDimensions(index: number): {
        offset: number;
        height: number;
    };
    /**
     * Update all offsets
     */
    private updateOffsets;
    /**
     * Get total height
     */
    getTotalHeight(): number;
}
/**
 * Vue 3 Adapter
 */
export declare const createVueVirtualList: () => {
    name: string;
    template: string;
    props: {
        items: ArrayConstructor;
        height: {
            type: NumberConstructor;
            default: number;
        };
        width: {
            type: NumberConstructor;
            default: number;
        };
        estimatedItemSize: {
            type: NumberConstructor;
            default: number;
        };
    };
};
/**
 * Svelte Component
 */
export declare const SvelteVirtualList = "\n<script>\n    import { useVirtualList } from 'virtualize';\n\n    export let items = [];\n    export let height = 400;\n    export let width = 300;\n    export let estimatedItemSize = 50;\n\n    let containerRef;\n    const { virtualItems, getItemStyle } = useVirtualList({\n        items,\n        containerHeight: height,\n        estimatedItemSize,\n    });\n</script>\n\n<div\n    bind:this={containerRef}\n    class=\"virtualize-container\"\n    style=\"height: {height}px; width: {width}px; overflow: auto;\"\n>\n    {#each $virtualItems as virtualItem (virtualItem.key)}\n        <div style={getItemStyle(virtualItem.index, virtualItem.size)}>\n            <slot item={virtualItem.data} index={virtualItem.index} />\n        </div>\n    {/each}\n</div>\n\n<style>\n    .virtualize-container {\n        position: relative;\n        border: 1px solid #ccc;\n    }\n</style>\n";
export interface AnalyticsEvent {
    type: string;
    timestamp: number;
    data: any;
}
export declare class AdvancedAnalytics {
    private events;
    private sessionStart;
    private maxEvents;
    /**
     * Track event
     */
    trackEvent(type: string, data: any): void;
    /**
     * Get session duration
     */
    getSessionDuration(): number;
    /**
     * Get analytics report
     */
    getReport(): {
        sessionDuration: number;
        totalEvents: number;
        eventBreakdown: Record<string, number>;
        timeline: AnalyticsEvent[];
    };
    /**
     * Get event breakdown
     */
    private getEventBreakdown;
    /**
     * Send analytics to server
     */
    sendAnalytics(endpoint: string): Promise<void>;
    /**
     * Export analytics as CSV
     */
    exportAsCSV(): string;
}
/**
 * Example: Analytics Plugin
 */
export declare const AnalyticsPlugin: VirtualizePlugin;
/**
 * Example: Logger Plugin
 */
export declare const LoggerPlugin: VirtualizePlugin;
/**
 * Example: Custom Plugin
 */
export declare function createCustomPlugin(options: any): VirtualizePlugin;
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