/**
 * @license
 * Copyright 2025 OSAgent OC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { MemoryCollection, VectorDocument, VectorSearchResult, VectorSearchOptions, CollectionStats, VectorMemoryConfig, EpisodeMemoryEntry, DecisionMemoryEntry, CodePatternEntry, ProblemSolutionEntry } from './types.js';
/**
 * Vector Memory Service
 *
 * Provides semantic search and storage using ChromaDB.
 * Integrates with EmbeddingService for text-to-vector conversion.
 *
 * Collections:
 * - episodes: Session history and interactions
 * - decisions: Architecture and design decisions
 * - code_patterns: Learned coding patterns
 * - problems_solutions: Bug fixes and solutions
 */
export declare class VectorMemoryService {
    private client;
    private collections;
    private embeddingService;
    private readonly chromaUrl;
    private readonly distanceFunction;
    private initialized;
    constructor(config?: VectorMemoryConfig);
    /**
     * Initialize connection to ChromaDB and create collections
     */
    initialize(): Promise<boolean>;
    /**
     * Check if ChromaDB is available
     */
    isAvailable(): Promise<boolean>;
    /**
     * Add a document to a collection
     */
    add(collectionName: MemoryCollection, document: VectorDocument): Promise<void>;
    /**
     * Add multiple documents to a collection
     */
    addBatch(collectionName: MemoryCollection, documents: VectorDocument[]): Promise<void>;
    /**
     * Search for similar documents
     */
    search(collectionName: MemoryCollection, query: string, options?: VectorSearchOptions): Promise<VectorSearchResult[]>;
    /**
     * Get a document by ID
     */
    get(collectionName: MemoryCollection, id: string): Promise<VectorDocument | null>;
    /**
     * Delete a document by ID
     */
    delete(collectionName: MemoryCollection, id: string): Promise<void>;
    /**
     * Update a document
     */
    update(collectionName: MemoryCollection, document: VectorDocument): Promise<void>;
    /**
     * Get collection statistics
     */
    getStats(collectionName: MemoryCollection): Promise<CollectionStats>;
    /**
     * Clear all documents from a collection
     */
    clear(collectionName: MemoryCollection): Promise<void>;
    /**
     * Add an episode to memory
     */
    addEpisode(episode: EpisodeMemoryEntry): Promise<void>;
    /**
     * Search for similar episodes
     */
    searchEpisodes(query: string, limit?: number): Promise<VectorSearchResult[]>;
    /**
     * Add a decision to memory
     */
    addDecision(decision: DecisionMemoryEntry): Promise<void>;
    /**
     * Add a code pattern to memory
     */
    addCodePattern(pattern: CodePatternEntry): Promise<void>;
    /**
     * Add a problem-solution to memory
     */
    addProblemSolution(entry: ProblemSolutionEntry): Promise<void>;
    /**
     * Ensure service is initialized before operations
     */
    private ensureInitialized;
}
export declare function getDefaultVectorMemoryService(config?: VectorMemoryConfig): VectorMemoryService;