import type { MemoryMetadata, MemoryQuery, MemoryResult } from '../types/index.js';
export interface VectorPoint {
    id: string;
    vector: number[];
    payload: Record<string, unknown>;
}
export interface SearchResult {
    id: string;
    score: number;
    payload: Record<string, unknown>;
}
export interface VectorStore {
    initialize(): Promise<void>;
    upsert(points: VectorPoint[]): Promise<void>;
    search(vector: number[], query: MemoryQuery): Promise<SearchResult[]>;
    delete(ids: string[]): Promise<void>;
    count(tenantId: string): Promise<number>;
    healthCheck(): Promise<boolean>;
    close?(): Promise<void>;
}
export declare class QdrantVectorStore implements VectorStore {
    private client;
    private collection;
    private dimension;
    constructor(url: string, collection: string, dimension: number, apiKey?: string);
    initialize(): Promise<void>;
    private convertToUuidFormat;
    upsert(points: VectorPoint[]): Promise<void>;
    search(vector: number[], query: MemoryQuery): Promise<SearchResult[]>;
    delete(ids: string[]): Promise<void>;
    count(tenantId: string): Promise<number>;
    healthCheck(): Promise<boolean>;
}
export declare class MemoryVectorStore {
    private store;
    private isInitialized;
    constructor(store: VectorStore);
    initialize(): Promise<void>;
    storeMemory(memory: MemoryMetadata, embedding: number[]): Promise<void>;
    storeMemories(memories: MemoryMetadata[], embeddings: number[][]): Promise<void>;
    searchMemories(queryEmbedding: number[], query: MemoryQuery): Promise<MemoryResult[]>;
    deleteMemories(ids: string[]): Promise<void>;
    getMemoryCount(tenantId: string): Promise<number>;
    healthCheck(): Promise<boolean>;
    close(): Promise<void>;
    getHealth(): Promise<{
        status: string;
        error?: string;
    }>;
    private ensureInitialized;
    private generateRelevanceReason;
}
/**
 * Simple in-memory vector store for BASIC tier - no external dependencies
 */
export declare class InMemoryVectorStore implements VectorStore {
    private vectors;
    initialize(): Promise<void>;
    upsert(points: VectorPoint[]): Promise<void>;
    search(vector: number[], query: MemoryQuery): Promise<SearchResult[]>;
    delete(ids: string[]): Promise<void>;
    count(tenantId: string): Promise<number>;
    healthCheck(): Promise<boolean>;
    close(): Promise<void>;
    private cosineSimilarity;
}
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