/*!
 * @package @coolgk/utils
 * @version 3.1.4
 * @link https://github.com/coolgk/node-utils
 * @license MIT
 * @author Daniel Gong <daniel.k.gong@gmail.com>
 *
 * Copyright (c) 2017 Daniel Gong <daniel.k.gong@gmail.com>. All rights reserved.
 * Licensed under the MIT License.
 */

/// <reference types="csv-stringify" />
/*!
 *  Copyright (c) 2017 Daniel Gong <daniel.k.gong@gmail.com>. All rights reserved.
 *  Licensed under the MIT License.
 */
import csvParse = require('csv-parse');
import csvStringify = require('csv-stringify');
import { generateFile, ITmpConfig } from '@coolgk/tmp';
import { Cursor } from 'mongodb';
export interface ICsvConfig {
    readonly generateFile?: typeof generateFile;
    readonly csvStringify?: typeof csvStringify;
    readonly csvParse?: typeof csvParse;
    readonly tmpConfig?: ITmpConfig;
}
export interface ICsvReadConfig {
    columns?: string[];
    limit?: number;
    delimiter?: string;
}
export interface ICsvWriteConfig {
    columns?: string[];
    delimiter?: string;
    filepath?: string;
    formatter?: (data: {
        [propName: string]: any;
    } | any[]) => string[];
}
export interface IReadFileResponse {
    forEach: (callback: (row: any, index: number) => void, endCallback: (rowCount: number) => void) => void;
}
export declare class Csv {
    private _csvParse;
    private _csvStringify;
    private _generateFile;
    private _tmpConfig;
    constructor(options?: ICsvConfig);
    parse(value: string, options?: ICsvReadConfig): Promise<any[]>;
    readFile(file: string, options?: ICsvReadConfig): IReadFileResponse;
    createFile(data: any[] | Cursor, options?: ICsvWriteConfig): Promise<string>;
    private _writeCsvStream(writableStream, rowData, options, isHeader?);
}
export default Csv;