import type { Corestore, Hypercore, ReplicationStream, HyperDBInstance } from './db-types.js';
import type { LoggerInterface } from '@qvac/logging';
import { BaseDBAdapter } from './BaseDBAdapter.js';
import { HyperDBStorage, type HyperDBStorageInput } from './HyperDBStorage.js';
import type { LRUCache } from '../../utils/helper.js';
import type { EmbeddedDoc, HyperDBAdapterConfig, ReindexOpts, ReindexResult, SaveEmbeddingsOpts, SaveEmbeddingsResult, SearchParams, SearchResult } from '../../types.js';
export interface HyperDBAdapterInput extends HyperDBStorageInput {
    NUM_CENTROIDS?: number;
    BUCKET_SIZE?: number;
    centroidsTable?: string;
    invertedIndexTable?: string;
}
export declare class HyperDBAdapter extends BaseDBAdapter {
    protected readonly storage: HyperDBStorage;
    NUM_CENTROIDS: number;
    BUCKET_SIZE: number;
    centroidsTable: string;
    invertedIndexTable: string;
    centroids: number[][];
    constructor(config?: HyperDBAdapterInput);
    get store(): Corestore | null;
    get db(): HyperDBInstance | null;
    get dbName(): string;
    get BATCH_SIZE(): number;
    get PROGRESS_INTERVAL(): number;
    get CACHE_SIZE(): number;
    get documentsTable(): string;
    get vectorsTable(): string;
    get configTable(): string;
    get hypercore(): Hypercore | null;
    get documentCache(): LRUCache<string, string>;
    get vectorCache(): LRUCache<string, number[]>;
    get logger(): LoggerInterface;
    get core(): Hypercore | null;
    saveEmbeddings(embeddedDocs: EmbeddedDoc[], opts?: SaveEmbeddingsOpts): Promise<SaveEmbeddingsResult[]>;
    deleteEmbeddings(ids: string[]): Promise<boolean>;
    search(query: string, queryVector: number[], params?: SearchParams): Promise<SearchResult[]>;
    reindex(opts?: ReindexOpts): Promise<ReindexResult>;
    _open(): Promise<void>;
    _close(): Promise<void>;
    getConfig(): Promise<HyperDBAdapterConfig | null>;
    replicateWith(otherHypercore: Hypercore): Promise<{
        stream1: ReplicationStream;
        stream2: ReplicationStream;
        destroy: () => void;
    }>;
    private _writeBucketUpdates;
    private _pruneBuckets;
    private _kMeans;
    private _findTopNCentroids;
    private _initialize;
    private _checkIsInitialized;
    private _updateBuckets;
    private _getBucket;
    private _progressiveCentroidExpansion;
}