import { HMSConfigInitialSettings, HMSICEServer } from '@100mslive/hms-video-store';
import { hooksErrHandler } from './types';
export interface usePreviewInput {
    /**
     * name of user who is joining, this is only required if join is called
     */
    name?: string;
    /**
     * app side authentication token
     */
    token: string;
    /**
     * any extra metadata info for the peer
     */
    metadata?: string;
    /**
     * function to handle errors happening during preview
     */
    handleError?: hooksErrHandler;
    initEndpoint?: string;
    /**
     * initial settings for audio/video and device to be used.
     */
    initialSettings?: HMSConfigInitialSettings;
    /**
     * Enable to get a network quality score while in preview. The score ranges from -1 to 5.
     * -1 when we are not able to connect to 100ms servers within an expected time limit
     * 0 when there is a timeout/failure when measuring the quality
     * 1-5 ranges from poor to good quality.
     */
    captureNetworkQualityInPreview?: boolean;
    asRole?: string;
    /**
     * if this flag is enabled, the SDK takes care of unsubscribing to the video when it goes out of view.
     * Additionally if simulcast is enabled, it takes care of auto managing simulcast layers based on the
     * dimensions of the video element to conserve bandwidth.
     */
    autoManageVideo?: boolean;
    /**
     * if this flag is enabled, wake lock will be acquired automatically(if supported) when joining the room, so the device
     * will be kept awake.
     */
    autoManageWakeLock?: boolean;
    /**
     * use custom STUN/TURN servers for media connection (advanced)
     */
    iceServers?: HMSICEServer[];
}
export interface usePreviewResult {
    /**
     * enable the join button for the user only when this is true
     */
    enableJoin: boolean;
    /**
     * call this function to join the room
     */
    join: () => Promise<void>;
    /**
     * once the user has joined the room, till leave happens this flag will be true. It can be used
     * to decide to show between preview form and conferencing component/video tiles.
     */
    isConnected: boolean;
    /**
     * call this function to join the room
     */
    preview: () => Promise<void>;
}
/**
 * This hook can be used to build a preview UI component, this lets you call preview every time the passed in
 * token changes. This hook is best used in combination with useDevices for changing devices, useAVToggle for
 * muting/unmuting and useAudioLevelStyles for showing mic audio level to the user.
 * Any device change or mute/unmute will be carried across to join.
 */
export declare const usePreviewJoin: ({ name, token, metadata, handleError, initEndpoint, initialSettings, captureNetworkQualityInPreview, asRole, autoManageVideo, autoManageWakeLock, iceServers, }: usePreviewInput) => usePreviewResult;