import { PeerConnectionManagerOptions } from './peer-connection-manager';
import { IceServersProvider, TwinTransport, TurnServerConfig, PhygridDataChannel } from './types';
export interface DataChannelHandlerOptions extends Partial<PeerConnectionManagerOptions> {
    useStun?: boolean;
    stunServers?: string[];
    turnServers?: TurnServerConfig[];
    iceTransportPolicy?: RTCIceTransportPolicy;
    iceServersProvider?: IceServersProvider;
    peerId?: string;
    selfManagedSignaling?: boolean;
}
export declare class DataChannelHandler {
    private targetTwinId;
    private channelName;
    private isInitiator;
    private transport;
    private options;
    private peerId?;
    private selfManagedSignaling;
    private iceServersProvider?;
    private pcManager;
    private dataChannel;
    private isOpen;
    private isClosed;
    private isConnecting;
    private livenessInterval;
    private pcUnhealthySince;
    private messageListeners;
    private closeListeners;
    private onConnectedCallback?;
    private onDisconnectedCallback?;
    private onErrorCallback?;
    private onReconnectingCallback?;
    private onReconnectedCallback?;
    constructor(targetTwinId: string, isInitiator: boolean, transport: TwinTransport, options?: DataChannelHandlerOptions, channelName?: string);
    setCallbacks(callbacks: {
        onConnected?: () => void;
        onDisconnected?: () => void;
        onError?: (error: Error) => void;
        onReconnecting?: (attempt: number) => void;
        onReconnected?: (attempt: number) => void;
    }): void;
    connect(): Promise<PhygridDataChannel>;
    ingestSignalingMessage(message: any): Promise<void>;
    close(): void;
    private setupDataChannel;
    private attachDataChannelHandlers;
    private startLivenessMonitor;
    private stopLivenessMonitor;
    private checkLiveness;
    private handleMessage;
    private handlePeerConnected;
    private handlePeerDisconnected;
    private handleReconnected;
    private handleError;
    private notifyCloseListeners;
    private createPhygridDataChannel;
}
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