import type { AppClient, CellId } from "@holochain/client";
import { EntryHash } from "@holochain/client";
import { FileMetadata } from "./types";
export declare class FileStorageClient {
    client: AppClient;
    roleName: string;
    zomeName: string;
    cellId: CellId | undefined;
    /**
     * @param client connection to the holochain backend
     * @param roleName
     * @param zomeName the zome name of the file_storage zome in the given cell
     * @param cellId optional cellId parameter for use when client is associated with a clone-cell
     */
    constructor(client: AppClient, roleName: string, zomeName?: string, cellId?: CellId | undefined);
    /**
     * Upload a file to the file_storage zome, splitting it into chunks
     *
     * @param file file to split and upload
     * @param chunkSize chunk size to split the file, default 256 KB
     */
    uploadFile(file: File, onProgress?: undefined | ((percentatgeProgress: number, bytesSent: number) => void), chunkSize?: number): Promise<EntryHash>;
    /**
     * Downloads the whole file with the given hash
     * @param fileHash
     * @param local whether to only check locally (default: true). Set to false to fetch from network.
     */
    downloadFile(fileHash: EntryHash, local?: boolean): Promise<File>;
    /**
     * Gets only the metadata of the file with the given hash
     * This is specially useful if you want to fetch the chunks one by one
     * @param fileHash the hash of the file
     * @param local whether to only check locally (default: true). Set to false to fetch from network.
     */
    getFileMetadata(fileHash: EntryHash, local?: boolean): Promise<FileMetadata>;
    /**
     * Fetch the chunk identified with the given hash
     * This is useful if used with the chunk hashes received with `getFileMetadata`
     * @param fileChunkHash
     * @param local whether to only check locally (default: true). Set to false to fetch from network.
     */
    fetchChunk(fileChunkHash: EntryHash, local?: boolean): Promise<Blob>;
    /** Private helpers */
    private _splitFile;
    private _createChunk;
    private _callZome;
}