import { KeyPair, SessionCrypto } from '@tonconnect/protocol';
import { Storage } from '../utils/storage';
import EventEmitter from 'eventemitter3';
export declare class HttpBridge extends EventEmitter {
    #private;
    url: string;
    ttl: number;
    session: SessionCrypto;
    storage: Storage;
    eventSource?: EventSource;
    lastEventId?: string;
    targetClientId?: string;
    eventNamePrefix: string;
    constructor(options?: {
        url?: string;
        targetClientId?: string;
        onError?: (error: any) => void;
        onOpen?: () => void;
    });
    setSession(keyPair?: KeyPair): void;
    get clientId(): string;
    get requestId(): number;
    get isListening(): boolean;
    get lastEventIdKey(): string;
    setBridgeUrl(url: string): void;
    setLastEventId(lastEventId: string): void;
    setTargetClientId(targetClientId: string): void;
    sendMessage(id: string, message: unknown): Promise<import("axios").AxiosResponse<any, any>>;
    getEventNameForId(name: string): string;
    listen(options?: {
        onError?: (error: any) => void;
        onOpen?: () => void;
    }): void;
    on(event: string | symbol, listener: (...args: any[]) => void, options?: {
        autoListen?: boolean;
    }): this;
    once(event: string | symbol, listener: (...args: any[]) => void, options?: {
        autoListen?: boolean;
    }): this;
    close(): void;
    reset(): void;
}
export declare const httpBridge: HttpBridge;