import { Channel, NormalChannelInfo, UpdatableChannelDataStore } from '../channel';
import { UpdatableChatListStore } from '../chat';
import { OpenChannel, OpenChannelInfo } from '../openlink';
import { NormalChannelUserInfo, OpenChannelUserInfo } from '../user';
export interface ClientDataLoadResult<T> {
    value: T;
    /**
     * true if value is not loaded or should be updated.
     */
    shouldUpdate: boolean;
}
export declare type AsyncClientDataLoadResult<T> = Promise<ClientDataLoadResult<T>>;
/**
 * Load various client data from memory or disk file
 */
export interface ClientDataLoader {
    loadChatListStore(channel: Channel): AsyncClientDataLoadResult<UpdatableChatListStore>;
    loadNormalChannelStore(channel: Channel, lastUpdate?: number): AsyncClientDataLoadResult<UpdatableChannelDataStore<NormalChannelInfo, NormalChannelUserInfo>>;
    loadOpenChannelStore(channel: OpenChannel, lastUpdate?: number): AsyncClientDataLoadResult<UpdatableChannelDataStore<OpenChannelInfo, OpenChannelUserInfo>>;
}