import type { JanusJS } from 'janus-gateway-ts';
import type { Readable, Updater, Writable } from 'svelte/store';
import type { PluginHandle, Event } from '../../attach';
import type { OneOf } from '../../utils/typing';
export declare type RoomId = number;
export declare type RoomPin = string | undefined;
export declare type UserName = string;
export declare type DisplayName = string | undefined;
/**
 * The properties exposed when the component attached
 */
export declare type AttachEvent = {
    on: Event;
    send: Send;
    peers: Readable<Peers>;
};
/**
 * The structure of messages received from TextRoom
 */
export declare type Message = {
    textroom: string;
    transaction: string;
    participants?: Participant[];
    join?: string;
    leave?: string;
    room?: number;
    from?: string;
    date?: string;
    text?: string;
    username?: string;
    display?: string;
};
/**
 * The anatomy of a participant
 */
export declare type Participant = {
    username: UserName;
    display: DisplayName;
};
/**
 * The data we're holding regarding a participant
 */
export declare type PeerModelMeta = Participant & {
    [key: string]: unknown;
};
/**
 * What do we know about our neighbours, really?
 */
export declare type PeerModel = {
    meta: Writable<PeerModelMeta>;
    ended?: true;
};
/**
 * Peers get indexed by their username
 */
export declare type Peers = Record<string, PeerModel>;
/**
 * Our payload must contain a text string, and then either one or neither of `to` or `tos`,
 * which are the username or usernames of recipients, respectively.
 */
export declare type Payload = {
    text: string;
} & Partial<OneOf<[{
    to: string;
}, {
    tos: string[];
}]>>;
/**
 * The signature of sending a data message
 */
export declare type Send = (payload: Payload) => void;
/**
 * For a given opaqueId, generate a new plugin handle conforming to the TextRoom spec
 */
export declare type InitTextRoom = (opaqueId: string) => Promise<PluginHandle<{
    room: number;
    send: Send;
    initParticipants?: Participant[];
}>>;
declare type ConnectParams = {
    room: number;
    pin?: string | undefined;
    username: string;
    display?: string;
};
export declare function connect(janus: JanusJS.Janus, { room, pin, username, display }: ConnectParams): InitTextRoom;
/**
 * Helper function for updating a store of Peers, inserting the given participants into the store
 */
export declare function putPeers(participants: Participant[]): Updater<Peers>;
/**
 * Helper function for updating a store of Peers, removing a particular peer because they have 'ended'.
 *
 * This behaviour is distinctly different from VideoRoom - here, we can simply delete the participant.
 */
export declare function markAsEnded(username: string): Updater<Peers>;
export { default as TextRoom } from './index.svelte';