import SignalingClientObserver from '../signalingclientobserver/SignalingClientObserver';
import { SdkClientMetricFrame, SdkPingPongFrame } from '../signalingprotocol/SignalingProtocol.js';
import SignalingClientConnectionRequest from './SignalingClientConnectionRequest';
import SignalingClientJoin from './SignalingClientJoin';
import SignalingClientSubscribe from './SignalingClientSubscribe';
/**
 * [[SignalingClient]] is the top-level interface for opening a signaling connection over WebSocket.
 */
export default interface SignalingClient {
    /**
     * Adds an observer to the observer queue with immediate effect.
     *
     * @param {SignalingClientObserver} observer The observer to add to the queue.
     */
    registerObserver(observer: SignalingClientObserver): void;
    /**
     * Removes an observer from the observer queue with immediate effect.
     *
     * @param {SignalingClientObserver} observer The observer to remove from the queue.
     */
    removeObserver(observer: SignalingClientObserver): void;
    /**
     * Enqueues an attempt to open a signaling connection over WebSocket.
     *
     * Once initiated, a WebSocketConnecting event is sent to observers. If successful, a
     * WebSocketOpen event is sent out. If the connection could not be established for any reason,
     * a WebSocketFailed event is sent followed by WebSocketClosed event. If any existing connection
     * is open, then that is first closed (and the WebSocketClosed event is sent out) before the
     * open is tried.
     *
     * @param {SignalingClientConnectionRequest} request The request to enqueue.
     */
    openConnection(request: SignalingClientConnectionRequest): void;
    /**
     * Sends a ping or pong with an id.
     *
     * @param {SdkPingPongFrame} the ping or pong frame to send.
     * @return number the ms timestamp when the message was sent.
     */
    pingPong(pingPongFrame: SdkPingPongFrame): number;
    /**
     * Sends a join frame with the given settings.
     *
     * @param {SignalingClientJoin} settings How to configure the Join frame.
     */
    join(settings: SignalingClientJoin): void;
    /**
     * Sends a subscribe frame with the given settings.
     *
     * @param {SignalingClientSubscribe} settings How to configure the Subscribe frame.
     */
    subscribe(settings: SignalingClientSubscribe): void;
    /**
     * Sends a leave frame.
     */
    leave(): void;
    /**
     * Sends a client stats frame.
     */
    sendClientMetrics(clientMetricFrame: SdkClientMetricFrame): void;
    /**
     * Closes any existing connection.
     *
     * Prior to closing, it delivers a WebSocketClosing event. Upon receipt of the final
     * WebSocket close event, the connection request queue is serviced. If there is no connection
     * to close, this function just services the connection request queue and returns.
     */
    closeConnection(): void;
    /**
     * Mute or unmute the client
     *
     * @param {boolean} muted Whether the client is to be muted (true) or unmuted (false)
     */
    mute(muted: boolean): void;
    /**
     * Returns whether the client has a connection open in the ready state
     *
     * @return {boolean} Whether the client has a connection open in the ready state
     */
    ready(): boolean;
    /**
     * Sends a pause frame with the given stream ids.
     */
    pause(streamIds: number[]): void;
    /**
     * Sends a resume frame with the given stream ids.
     */
    resume(streamIds: number[]): void;
}