import { ObjectID, GridFSBucket } from 'mongodb';
import { Store } from './store';
export declare type GridFsStore = Store & {
    gridfs: GridFSBucket;
};
export declare type MetadataFile = {
    filename: string;
    _id: ObjectID;
    length: number;
    chunkSize: number;
    uploadDate: Date;
    md5: string;
    contentType: string;
    aliases: string[];
    metadata: any;
};
export declare type FileRepository = {
    insertFileAsync: (filepath: string | Buffer, mimeType: string, filename?: string) => Promise<string>;
    replaceFileAsync: (filepath: string | Buffer, filename: string, mimeType?: string) => Promise<string>;
    findMetadataAsync: (fileId: string) => Promise<MetadataFile>;
    getAllMetadataAsync: (fileIds: string[]) => Promise<MetadataFile[]>;
    getFilestreamAsync: (fileId: ObjectID) => Promise<NodeJS.ReadableStream>;
    deleteFileAsync: (fileId: ObjectID) => Promise<void>;
    deleteFilesAsync: (fileIds: string[]) => Promise<void>;
};
export declare function createFileRepository(store: GridFsStore): FileRepository;