/// <reference types="node" />
import { errorCode, targetType } from './constant';
import { EventEmitter } from 'events';
import { ScpClient } from '.';
import { CheckResult, ErrorCustom } from './types';
/**
 * Generate a new Error object with a reformatted error message which
 * is a little more informative and useful to users.
 *
 * @param {Error|string} err - The Error object the new error will be based on
 * @param {number} retryCount - For those functions which use retry. Number of
 *                              attempts to complete before giving up
 * @returns {Error} New error with custom error message
 */
export declare function formatError(err: ErrorCustom | string, name?: string, eCode?: errorCode, retryCount?: number): ErrorCustom;
/**
 * Tests an error to see if it is one which has already been customised
 * by this module or not. If not, applies appropriate customisation.
 *
 * @param {Error} err - an Error object
 * @param {String} name - name to be used in customised error message
 * @param {Function} reject - If defined, call this function instead of
 *                            throwing the error
 * @throws {Error}
 */
export declare function handleError(err: ErrorCustom, name: string, reject: (e: any) => void): void;
/**
 * Remove all ready, error and end listeners.
 *
 * @param {Emitter} emitter - The emitter object to remove listeners from
 */
/**
 * Simple default error listener. Will reformat the error message and
 * throw a new error.
 *
 * @param {Error} err - source for defining new error
 * @throws {Error} Throws new error
 */
export declare function makeErrorListener(reject: (e: any) => void, client: ScpClient, name: string): (err: Error) => void;
export declare function makeEndListener(client: ScpClient): () => void;
export declare function makeCloseListener(client: ScpClient, reject?: (e: any) => void, name?: string): () => void;
/**
 * @async
 *
 * Tests to see if a path identifies an existing item. Returns either
 * 'd' = directory, 'l' = sym link or '-' regular file if item exists. Returns
 * false if it does not
 *
 * @param {String} localPath
 * @returns {Boolean | String}
 */
export declare function localExists(localPath: string): Promise<string>;
/**
 * Used by checkRemotePath and checkLocalPath to help ensure consistent
 * error messages.
 *
 * @param {Error} err - original error
 * @param {String} testPath - path associated with the error
 * @returns {Object} with properties of 'msg' and 'code'.
 */
export declare function classifyError(err: ErrorCustom, testPath: string): {
    msg: string;
    code: string;
};
export declare function localAccess(localPath: string, mode: number): Promise<CheckResult>;
export declare function checkLocalReadFile(localPath: string, localType: string): Promise<CheckResult>;
export declare function checkLocalReadDir(localPath: string, localType: string): Promise<CheckResult>;
export declare function checkLocalWriteFile(localPath: string, localType: string): Promise<CheckResult>;
export declare function checkLocalWriteDir(localPath: string, localType: string): Promise<CheckResult>;
export declare function checkLocalPath(lPath: string, target?: targetType): Promise<CheckResult>;
export declare function normalizeRemotePath(client: ScpClient, aPath: string): Promise<string>;
export declare function checkReadObject(aPath: string, type: string): {
    path: string;
    type: string;
    valid: boolean;
    msg: string | undefined;
    code: errorCode | undefined;
};
export declare function checkReadFile(aPath: string, type: string): {
    path: string;
    type: string;
    valid: boolean;
    msg: string;
    code: errorCode;
} | {
    path: string;
    type: string;
    valid: boolean;
    msg?: undefined;
    code?: undefined;
};
export declare function checkReadDir(aPath: string, type: string): {
    path: string;
    type: string;
    valid: boolean;
    msg: string;
    code: errorCode;
} | {
    path: string;
    type: string;
    valid: boolean;
    msg?: undefined;
    code?: undefined;
};
export declare function checkWriteFile(client: ScpClient, aPath: string, type: string): Promise<{
    path: string;
    type: string;
    valid: boolean;
    msg: string;
    code: errorCode;
} | {
    path: string;
    type: boolean;
    valid: boolean;
    msg: string;
    code: errorCode;
} | {
    path: string;
    type: string;
    valid: boolean;
    msg?: undefined;
    code?: undefined;
}>;
export declare function checkWriteDir(client: ScpClient, aPath: string, type: string): Promise<{
    path: string;
    type: string;
    valid: boolean;
    msg: string;
    code: errorCode;
} | {
    path: string;
    type: string;
    valid: boolean;
    msg?: undefined;
    code?: undefined;
} | {
    path: string;
    type: boolean;
    valid: boolean;
    msg: string;
    code: errorCode;
}>;
export declare function checkWriteObject(aPath: string, type: string): {
    path: string;
    type: string;
    valid: boolean;
};
export declare function checkRemotePath(client: ScpClient, rPath: string, target?: targetType): Promise<{
    path: string;
    type: boolean;
    valid: boolean;
    msg: string;
    code: errorCode;
} | {
    path: string;
    type: string;
    valid: boolean;
}>;
/**
 * Check to see if there is an active sftp connection
 *
 * @param {Object} client - current sftp object
 * @param {String} name - name given to this connection
 * @param {Function} reject - if defined, call this rather than throw
 *                            an error
 * @returns {Boolean} True if connection OK
 * @throws {Error}
 */
export declare function haveConnection(client: ScpClient, name: string, reject?: (e: any) => void): boolean;
export declare function dumpListeners(emitter: EventEmitter): void;
export declare function hasListener(emitter: EventEmitter, eventName: string, listenerName: string): boolean;
export declare function joinRemote(client: ScpClient, ...args: string[]): string;