/**
 * lazy-render-server
 * Backend helpers for lazy-render
 *
 * Provides:
 * - Cursor-based pagination
 * - Batch optimization
 * - API performance helpers
 * - Caching utilities
 * - Database adapters
 */
export * from './adapters';
export * from './cursorPagination';
export { paginationMiddleware } from './middleware';
export { rateLimiter } from './middleware/rate-limiter';
export interface PaginationParams {
    page: number;
    limit: number;
    cursor?: string;
    sortBy?: string;
    sortOrder?: 'asc' | 'desc';
}
export interface PaginatedResponse<T> {
    data: T[];
    pagination: {
        page: number;
        limit: number;
        total: number;
        totalPages: number;
        hasMore: boolean;
        nextCursor?: string;
        prevCursor?: string;
    };
    meta?: {
        sortBy?: string;
        sortOrder?: 'asc' | 'desc';
        timestamp: string;
    };
}
/**
 * Calculate pagination metadata
 */
export declare function calculatePagination<T>(items: T[], page: number, limit: number, total: number, options?: {
    sortBy?: string;
    sortOrder?: 'asc' | 'desc';
}): PaginatedResponse<T>;
/**
 * Validate pagination parameters
 */
export declare function validatePaginationParams(params: PaginationParams): {
    page: number;
    limit: number;
    cursor?: string;
    sortBy?: string;
    sortOrder: 'asc' | 'desc';
    errors: string[];
};
/**
 * Batch data into chunks
 */
export declare function batchData<T>(data: T[], batchSize: number): T[][];
/**
 * Cursor-based pagination helper
 */
export declare function createCursor(page: number, limit: number): string;
/**
 * Decode cursor
 */
export declare function decodeCursor(cursor: string): {
    page: number;
    limit: number;
} | null;
/**
 * Cache helper with TTL
 */
export declare class Cache<T> {
    private cache;
    private defaultTTL;
    constructor(defaultTTL?: number);
    set(key: string, value: T, ttl?: number): void;
    get(key: string): T | null;
    delete(key: string): boolean;
    clear(): void;
    size(): number;
}
declare const _default: {
    calculatePagination: typeof calculatePagination;
    validatePaginationParams: typeof validatePaginationParams;
    batchData: typeof batchData;
    createCursor: typeof createCursor;
    decodeCursor: typeof decodeCursor;
    Cache: typeof Cache;
};
export default _default;