import * as fs from 'fs-extra';
import * as path from 'path';
import type { FileNameFormatterFn, RollingFileSyncWriteStreamOptions, FileNameParserFn } from './types';
type RollingFileSyncWriteStreamConfigs = Omit<Required<RollingFileSyncWriteStreamOptions>, 'pattern'> & {
    pattern?: string;
};
export declare class RollingFileWriteSyncStream {
    currentFileStream: fs.WriteStream;
    fileNameFormatter: FileNameFormatterFn;
    fileNameParser: FileNameParserFn;
    fileObject: path.ParsedPath;
    filePath: string;
    filename: string;
    state: {
        currentDate?: string;
        currentSize: number;
    };
    options: RollingFileSyncWriteStreamConfigs;
    constructor(filePath: string, options: RollingFileSyncWriteStreamOptions);
    _setExistingSizeAndDate(): void;
    private _parseOption;
    write(chunk: any, encoding: BufferEncoding): void;
    private _shouldRoll;
    private _dateChanged;
    private _tooBig;
    private _roll;
    private _getExistingFiles;
    private mkdirSync;
    private _touchFile;
}
export {};