import type { SearchResult } from '../types/index.js';
/**
 * TTL-based cache for search results
 */
export declare class SearchCache {
    private cache;
    private ttl;
    private maxSize;
    constructor(ttlSeconds?: number);
    /**
     * Generates a cache key from search parameters
     */
    private generateKey;
    /**
     * Gets search results from cache
     */
    get(query: string, searchType: string, area: string): SearchResult[] | null;
    /**
     * Sets search results in cache
     */
    set(query: string, searchType: string, area: string, results: SearchResult[]): void;
    /**
     * Removes expired entries from cache
     */
    private cleanup;
    /**
     * Clears all cache entries
     */
    clear(): void;
    /**
     * Gets the number of entries in cache
     */
    size(): number;
    /**
     * Checks if a search query is cached and valid
     */
    has(query: string, searchType: string, area: string): boolean;
}
//# sourceMappingURL=search-cache.d.ts.map