import cliProgress from 'cli-progress';
import type { IProgress, IProgressItem } from '../types';
export declare class ProgressBar {
    bookPath: string;
    progressFilePath: string;
    progressInfo: IProgress;
    curr: number;
    total: number;
    isDownloadInterrupted: boolean;
    bar: cliProgress.SingleBar | null;
    completePromise: Promise<void> | null;
    incremental: boolean;
    disableProgressJSON: boolean;
    constructor(bookPath: string, total: number, incremental?: boolean, disableProgressJSON?: boolean);
    init(): Promise<void>;
    getProgress(): Promise<IProgress>;
    updateProgress(progressItem: IProgressItem, isSuccess: boolean): Promise<void>;
    pause(): void;
    continue(): void;
    clearLine(line: number): void;
}