import { WsError } from './errors.js';
import type { OrderbookOptions, OrderbookEventMap } from './types/orderbook.js';
type SystemHandler<T> = (arg: T) => void;
type EventHandler<T> = (data: T) => void;
export declare class OrderbookWS {
    private readonly apiKey;
    private readonly obUrl;
    private readonly options;
    private socket;
    private tokenIds;
    private reconnectAttempts;
    private reconnectTimer;
    private intentionalClose;
    private connected;
    private handlers;
    private _onConnect;
    private _onDisconnect;
    private _onReconnect;
    private _onError;
    constructor(apiKey: string, obUrl: string, options?: OrderbookOptions);
    get isConnected(): boolean;
    onConnect(handler: SystemHandler<void>): this;
    onDisconnect(handler: SystemHandler<string>): this;
    onReconnect(handler: SystemHandler<number>): this;
    onError(handler: SystemHandler<WsError>): this;
    /** Register a handler for a specific event type. */
    on<K extends keyof OrderbookEventMap>(event: K, handler: EventHandler<OrderbookEventMap[K]>): this;
    /** Remove a handler. */
    off<K extends keyof OrderbookEventMap>(event: K, handler: EventHandler<OrderbookEventMap[K]>): this;
    /** Subscribe to orderbook updates for the given token IDs. */
    subscribe(tokenIds: string[]): Promise<void>;
    /** Unsubscribe from all markets. */
    unsubscribe(): void;
    /** Connect to the orderbook WebSocket. Called automatically on first subscribe. */
    connect(): Promise<void>;
    /** Close the connection. Stops auto-reconnect. */
    disconnect(): void;
    private _ensureConnected;
    private _connect;
    private _send;
    private _handleMessage;
    private _dispatchUpdate;
    private _scheduleReconnect;
}
export {};
//# sourceMappingURL=orderbook.d.ts.map