import BrowserSession from '../BrowserSession';
import { WebRTCStatsReporter } from '../util/debug';
import { PeerType } from './constants';
import { IVertoCallOptions } from './interfaces';
export declare type RestartIceResult = {
    started: boolean;
    reason?: string;
};
export default class Peer {
    type: PeerType;
    private options;
    instance: RTCPeerConnection;
    onSdpReadyTwice: ((data: RTCSessionDescription) => void) | null;
    statsReporter: WebRTCStatsReporter | null;
    isIceRestarting: boolean;
    iceDone: boolean;
    private _constraints;
    private _session;
    private _negotiating;
    private _prevConnectionState;
    private _restartedIceOnConnectionStateFailed;
    private _trickleIceSdpFn;
    private _registerPeerEvents;
    private _sleepWakeupIntervalId;
    private _iceGatheringSafetyTimeout;
    private _gatheredCandidatesCount;
    private static readonly ICE_GATHERING_SAFETY_TIMEOUT_MS;
    private _firstMediaTrackMarked;
    private _timingsCollected;
    private _iceRestartTimeoutId;
    private static readonly ICE_RESTART_TIMEOUT_MS;
    constructor(type: PeerType, options: IVertoCallOptions, session: BrowserSession, trickleIceSdpFn: (sdp: RTCSessionDescriptionInit) => void, registerPeerEvents: (instance: RTCPeerConnection) => void);
    finishIceRestart(): void;
    restartIce(): RestartIceResult;
    get isOffer(): boolean;
    get isAnswer(): boolean;
    get isDebugEnabled(): boolean;
    get debugOutput(): "socket" | "file";
    get restartedIceOnConnectionStateFailed(): boolean;
    isConnectionHealthy(): boolean;
    startNegotiation(): void;
    startTrickleIceNegotiation(): Promise<void>;
    private _emitNegotiationError;
    private _logTransceivers;
    private handleSignalingStateChangeEvent;
    private handleNegotiationNeededEvent;
    private handleTrackEvent;
    private handleConnectionStateChange;
    tryCollectTimings(): void;
    private createPeerConnection;
    private _handleIceConnectionStateChange;
    private _handleIceGatheringStateChange;
    incrementGatheredCandidates(): void;
    private _startIceGatheringSafetyTimeout;
    private _clearIceGatheringSafetyTimeout;
    init(): Promise<void>;
    private _getSenderByKind;
    private _checkMediaToNegotiate;
    private _createOffer;
    private _setRemoteDescription;
    private _createAnswer;
    private _setLocalDescription;
    private _setCodecs;
    private _sdpReady;
    private _retrieveLocalStream;
    private _isOffer;
    private _isAnswer;
    private _isTrickleIce;
    private _config;
    restartStatsReporter(): Promise<void>;
    close(): Promise<void>;
}