import { MilvusClient } from '@zilliz/milvus2-sdk-node';
import type { Chunk } from './chunker.js';
export declare function getMilvusClient(): MilvusClient;
export declare function ensureCollection(): Promise<void>;
/** Pair chunks with their embeddings, dropping any chunk whose embedding failed (null). */
export declare function pairEmbedded(chunks: Chunk[], embeddings: (number[] | null)[]): {
    kept: [Chunk, number[]][];
    skipped: Chunk[];
};
export declare function upsertChunks(chunks: Chunk[], embeddings: (number[] | null)[]): Promise<void>;
export declare function deleteByFilePaths(filePaths: string[]): Promise<void>;
export interface SearchResult {
    filePath: string;
    symbolName: string;
    chunkType: string;
    startLine: number;
    endLine: number;
    content: string;
    score: number;
    module: string;
    language: string;
}
export interface SearchFilters {
    module?: string;
    language?: string;
    chunkType?: string;
    /** Path patterns to leave out (see ignore.ts). */
    ignore?: readonly string[];
}
export declare function searchChunks(queryEmbedding: number[], topK?: number, filters?: SearchFilters): Promise<SearchResult[]>;
export declare function getCollectionStats(): Promise<{
    count: number;
}>;
export declare function dropCollection(): Promise<void>;