import { AssetType, CacheEntry } from '../types.mjs';

/**
 * Utility functions for cache operations
 */

/**
 * Determine the asset type from a URL or content type
 * @param url URL of the asset
 * @param contentType Optional content type
 * @returns Asset type
 */
declare function determineAssetType(url: string, contentType?: string): AssetType;
/**
 * Check if an asset should be cached based on its type and size
 * @param url URL of the asset
 * @param size Size of the asset in bytes
 * @param contentType Optional content type
 * @param maxSize Maximum size for cacheable assets
 * @returns Whether the asset should be cached
 */
declare function shouldCacheAsset(url: string, size: number, contentType?: string, maxSize?: number): boolean;
/**
 * Create a cache entry for an asset
 * @param data Asset data
 * @param url URL of the asset
 * @param contentType Optional content type
 * @param options Cache options
 * @returns Cache entry
 */
declare function createCacheEntry<T>(data: T, url: string, contentType?: string, options?: {
    ttl?: number;
    tags?: string[];
    version?: string;
}): CacheEntry<T>;
/**
 * Check if a cache entry has expired
 * @param entry Cache entry
 * @returns Whether the entry has expired
 */
declare function hasExpired(entry: CacheEntry<any>): boolean;
/**
 * Format a size in bytes to a human-readable string
 * @param bytes Size in bytes
 * @returns Human-readable size string
 */
declare function formatSize(bytes: number): string;
/**
 * Log a debug message if debug mode is enabled
 * @param message Message to log
 * @param args Additional arguments
 */
declare function debugLog(message: string, ...args: any[]): void;

export { createCacheEntry, debugLog, determineAssetType, formatSize, hasExpired, shouldCacheAsset };