/// <reference types="node" />
import { TypedEmitter } from 'tiny-typed-emitter';
import { SlingDisplayMessageType, SlingMessage, SlingNonFlushDisplayMessage, SlingOptionalIdMessage } from './slingProtocol';
export interface SlingClientOptions {
    /**
     * The WebSocket endpoint URL to connect to.
     */
    readonly websocketEndpoint: string;
    /**
     * The MQTT client ID for this client to use.
     */
    readonly clientId: string;
    /**
     * The MQTT client ID of the device.
     */
    readonly deviceId: string;
}
export declare type SlingClientDisplayValue = SlingNonFlushDisplayMessage['value'];
export interface SlingClientEvents {
    connect: () => void;
    error: (error: Error) => void;
    message: (message: SlingMessage) => void;
    statusChange: (isRunning: boolean) => void;
    monitor: (data: string[]) => void;
    prompt: (prompt: string) => void;
    promptDismiss: () => void;
    display: (message: SlingClientDisplayValue, type: Exclude<SlingDisplayMessageType, 'flush' | 'response'>) => void;
}
export declare class SlingClient extends TypedEmitter<SlingClientEvents> {
    readonly options: SlingClientOptions;
    private _mqttClient?;
    private _deviceStatus?;
    private _lastProcessedMessageId?;
    private _queuedMessages;
    private _seenHellos;
    private readonly _displayBuffer;
    private readonly _queuedFlushes;
    private _monitorData;
    constructor(options: SlingClientOptions);
    connect(): void;
    disconnect(): void;
    sendRun(code: Buffer): void;
    sendStop(): void;
    sendPing(): void;
    sendMessage(message: SlingOptionalIdMessage): void;
    private _handleConnect;
    private _handleMessage;
    private _processMessage;
    private _attemptFlush;
}