import type { Room, RemoteParticipant } from 'livekit-client';
import type { ParticipantInfo, DataMessage } from './types';
export declare class PresenterManager {
    private currentPresenter;
    private room;
    private userRole;
    private localIdentity;
    private debug;
    constructor(debug?: boolean);
    setRoom(room: Room, userRole: 'teacher' | 'student', localIdentity: string): void;
    getCurrentPresenter(): string | null;
    isPresenter(identity: string): boolean;
    setPresenter(participantIdentity: string, participants: ParticipantInfo[]): Promise<void>;
    clearPresenter(): Promise<string | null>;
    handlePresenterMessage(message: DataMessage, participants: ParticipantInfo[]): {
        action: string;
        presenterIdentity: string | null;
        previousPresenter: string | null;
        isMe: boolean;
    } | null;
    handleTeacherChange(action: 'joined' | 'left'): Promise<void>;
    private sendDataMessage;
    syncPresenterForNewParticipant(): Promise<void>;
    canPublishMedia(userRole: 'teacher' | 'student' | null, localIdentity: string | null): boolean;
    shouldShowParticipantVideo(participant: RemoteParticipant, userRole: 'teacher' | 'student' | null, participantRole: 'teacher' | 'student'): boolean;
}