import { BSDeliveryWsOptions, MessageHandler, SendHandler } from './types';
declare class BigStateWsDeliveryClient {
    private baseUrl;
    private _apiKey;
    private _token;
    private socket;
    private reconnectCount;
    private maxReconnectCount;
    private messages;
    private messageHandlers;
    private timerId;
    private disconnectRequestedByUser;
    /** First unintentional close since last successful open — start of rapid-reconnect clock. */
    private outageStartedAtMs;
    /** Rapid phase: exponentially growing spaced delay until WS_MAX_RECONNECT_DELAY_MS */
    private aggressiveCurrentDelayMs;
    private rapidReconnectBaseMs;
    /** Long phase: nth schedule after the rapid window waits `n × linearReconnectStepMs`. */
    private linearReconnectStepMs;
    private reconnectBackoffAttempt;
    private debugLog?;
    constructor(data: BSDeliveryWsOptions);
    set apiKey(value: string);
    set token(value: string);
    private get authKey();
    onOpenSocket(send: SendHandler, objects: string[]): void;
    addDeliveries(deliveries: string[]): void;
    setDeliveries(deliveries: string[]): void;
    clearDeliveries(): void;
    addMessageHandler(handler: MessageHandler): void;
    setMessageHandlers(handlers: MessageHandler[]): void;
    removeMessageHandler(handler: MessageHandler): void;
    clearMessageHandlers(): void;
    disconnect(): void;
    private scheduleReconnectAfterClose;
    private trace;
    private scheduleAggressiveBackoff;
    private scheduleLinearBackoff;
    retry(error: any): void;
    openSocket(): void;
    private handleNotification;
    private closeSocketAndTimers;
    isSocketConnected(): boolean;
}
export default BigStateWsDeliveryClient;