import type { Participant, Room, ChatMessage } from '@cc-livekit/livekit-client';
import { BehaviorSubject } from 'rxjs';
/** @public */
export type { ChatMessage };
/** @public */
export interface ReceivedChatMessage extends ChatMessage {
    from?: Participant;
}
export interface LegacyChatMessage extends ChatMessage {
    ignore?: boolean;
}
export interface LegacyReceivedChatMessage extends ReceivedChatMessage {
    ignore?: boolean;
}
/**
 * @public
 * @deprecated the new chat API doesn't rely on encoders and decoders anymore and uses a dedicated chat API instead
 */
export type MessageEncoder = (message: LegacyChatMessage) => Uint8Array;
/**
 * @public
 * @deprecated the new chat API doesn't rely on encoders and decoders anymore and uses a dedicated chat API instead
 */
export type MessageDecoder = (message: Uint8Array) => LegacyReceivedChatMessage;
/** @public */
export type ChatOptions = {
    /** @deprecated the new chat API doesn't rely on encoders and decoders anymore and uses a dedicated chat API instead */
    messageEncoder?: (message: LegacyChatMessage) => Uint8Array;
    /** @deprecated the new chat API doesn't rely on encoders and decoders anymore and uses a dedicated chat API instead */
    messageDecoder?: (message: Uint8Array) => LegacyReceivedChatMessage;
    /** @deprecated the new chat API doesn't rely on topics anymore and uses a dedicated chat API instead */
    channelTopic?: string;
    /** @deprecated the new chat API doesn't rely on topics anymore and uses a dedicated chat API instead */
    updateChannelTopic?: string;
};
export declare function setupChat(room: Room, options?: ChatOptions): {
    messageObservable: import("rxjs").Observable<ReceivedChatMessage[]>;
    isSendingObservable: BehaviorSubject<boolean>;
    send: (message: string) => Promise<ChatMessage>;
    update: (message: string, originalMessageOrId: string | ChatMessage) => Promise<{
        readonly message: string;
        readonly editTimestamp: number;
        readonly id: string;
        readonly timestamp: number;
        readonly attachedFiles?: Array<File>;
    }>;
};
//# sourceMappingURL=chat.d.ts.map