import DataMessage from '../datamessage/DataMessage';
import RealtimeAttendeePositionInFrame from './RealtimeAttendeePositionInFrame';
import RealtimeVolumeIndicator from './RealtimeVolumeIndicator';
/**
 * [[RealtimeState]] stores all realtime persistent state.
 */
export default class RealtimeState {
    /**
     * Stores the attendee id of the current user
     */
    localAttendeeId: string | null;
    /**
     * Stores the external user id of the current user
     */
    localExternalUserId: string | null;
    /**
     * Callbacks to listen for attendee id changes
     */
    attendeeIdChangesCallbacks: ((attendeeId: string, present: boolean, externalUserId: string, dropped: boolean, posInFrame: RealtimeAttendeePositionInFrame | null) => void)[];
    /**
     * Stores whether the user can transition from muted to unmuted
     */
    canUnmute: boolean;
    /**
     * Callbacks to listen for changes to can-unmute local audio state
     */
    setCanUnmuteLocalAudioCallbacks: ((canUnmute: boolean) => void)[];
    /**
     * Stores whether the user is presently muted
     */
    muted: boolean;
    /**
     * Callbacks to listen for local audio mutes and unmutes
     */
    muteAndUnmuteLocalAudioCallbacks: ((muted: boolean) => void)[];
    /**
     * Stores the active audio input
     */
    audioInput: MediaStream | null;
    /**
     * Stores per-attendee id volume indicator state
     */
    volumeIndicatorState: {
        [key: string]: RealtimeVolumeIndicator;
    };
    /**
     * Stores attendee id to external user id mappings
     */
    attendeeIdToExternalUserId: {
        [attendeeId: string]: string;
    };
    /**
     * Stores per-attendee id callbacks called when volume indicators change
     */
    volumeIndicatorCallbacks: {
        [key: string]: ((attendeeId: string, volume: number | null, muted: boolean | null, signalStrength: number | null, externalUserId?: string) => void)[];
    };
    /**
     * Callbacks to listen for changes to local signal strength
     */
    localSignalStrengthChangeCallbacks: ((signalStrength: number) => void)[];
    /**
     * Callbacks to listen for fatal errors
     */
    fatalErrorCallbacks: ((error: Error) => void)[];
    /**
     * Callbacks to trigger when sending message
     */
    sendDataMessageCallbacks: ((topic: string, // eslint-disable-next-line @typescript-eslint/no-explicit-any
    data: Uint8Array | string | any, lifetimeMs?: number) => void)[];
    /**
     * Callbacks to listen for receiving message from data channel based on given topic
     */
    receiveDataMessageCallbacks: Map<string, ((dataMessage: DataMessage) => void)[]>;
}