import EventEmitter from "eventemitter3";
import PeerDataSocket from "./peer.data.socket";
import { PeerICEMsg } from "./types";
type ServerEvent = {
    connect: (socket: PeerDataSocket) => void;
    offer: (data: {
        data: any;
        dst: string;
    }) => void;
    answer: (data: {
        data: any;
        dst: string;
    }) => void;
    candidate: (data: {
        data: any;
        dst: string;
    }) => void;
};
/**
 * 连接握手
 */
export default class Negotiator extends EventEmitter<ServerEvent> {
    readonly socket: PeerDataSocket;
    readonly options: {
        negotiated: boolean;
    };
    private rtc;
    private provider;
    private dstPeer;
    private destroyed;
    private isAnswer;
    private candidates;
    private candidatesKeys;
    get peer(): string;
    constructor(socket: PeerDataSocket, options: {
        negotiated: boolean;
    });
    private startConnection;
    private send;
    close(): void;
    private clear;
    private initEvent;
    /**
     * 监听rtc事件
     */
    private _setupRtcEvent;
    /**
     *
     * @param dstPeerId 目标peer id
     */
    createOffer(dstPeerId: string): Promise<PeerICEMsg | undefined>;
    handleOffer({ data, dst }: {
        data: any;
        dst: any;
    }): Promise<PeerICEMsg | undefined>;
    handleAnswer({ dst, data }: {
        dst: any;
        data: any;
    }): Promise<void>;
    handleCandidate({ type, candidate }: {
        type: any;
        candidate: any;
    }): void;
    createDataChannel(): void;
}
export {};