import { CacheEntry, SemanticMatch } from '../types';
/**
 * Subconscious Semantic Engine
 * Provides semantic caching using ChromaDB and Ollama embeddings
 * Implements the "short-circuit" logic for instant task resolution
 */
export declare class SubconsciousEngine {
    private client;
    private collection;
    private isInitialized;
    private cacheHits;
    private cacheMisses;
    private dashboardWebSocket;
    constructor();
    /**
     * Initialize the engine and create/get collection
     */
    initialize(): Promise<void>;
    /**
     * Link dashboard websocket server for emitting cache events
     */
    setDashboardWebSocket(server: any): void;
    /**
     * Generate embedding using Ollama
     */
    private generateEmbedding;
    /**
     * Search for semantically similar cached responses
     * Returns the best match if similarity exceeds threshold
     */
    search(query: string): Promise<SemanticMatch | null>;
    /**
     * Store a new response in the semantic cache
     */
    store(entry: CacheEntry): Promise<void>;
    /**
     * Prune old entries if cache exceeds max size
     */
    private pruneIfNeeded;
    /**
     * Get cache statistics
     */
    getStats(): {
        cacheHits: number;
        cacheMisses: number;
        totalQueries: number;
        hitRate: string;
    };
    /**
     * Return cache entries for dashboard reporting.
     */
    getCacheEntries(limit?: number): Promise<{
        queryHash: string;
        query: string;
        hitCount: any;
        totalTokens: any;
        costSaved: number;
        lastHit: string;
    }[]>;
    /**
     * Get total cached entry count.
     */
    getCacheCount(): Promise<number>;
    /**
     * Record a cache hit in the stored metadata.
     */
    private recordCacheHit;
    /**
     * Clear all cache entries
     */
    clear(): Promise<void>;
    /**
     * Shutdown the engine
     */
    shutdown(): Promise<void>;
}
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