import { NIMResCode } from './client_def';
import { NIMSessionType } from './session_def';
export interface SessionInfo {
    /** 会话ID */
    id_?: string;
    /** 会话类型 */
    type_?: NIMSessionType;
    /** 自定的扩展字段 */
    ext_?: string;
    /** 最后一条会话 json string */
    last_message_?: string;
    /** 最后更新时间戳 */
    update_time_?: number;
    /** 最后一条消息的类型 0表示普通消息，1表示消息撤回通知 */
    last_message_type_?: number;
}
export interface QuerySessionListResult {
    /** 返回的错误码 成功:200 */
    res_code?: NIMResCode;
    /** 会话列表 */
    session_list_?: Array<SessionInfo>;
    /**是否还有会话数据 */
    has_more_?: boolean;
}
export interface DeleteSessionItem {
    /** 要删除的会话类型 */
    delete_session_type?: number;
    /** 要删除的会话 ID */
    delete_session_id?: string;
}
export interface DeleteSessionParam {
    /** 要删除的会话列表 */
    delete_list_?: Array<DeleteSessionItem>;
}
export type QueryOnlineSessionInfoCallback = (rescode: NIMResCode, result: SessionInfo) => void;
export type QueryOnlineSessionListCallback = (result: QuerySessionListResult) => void;
export type UpdateOnlineSessionInfoCallback = (rescode: NIMResCode) => void;
export type DeleteOnlineSessionInfoCallback = (rescode: NIMResCode) => void;
export type OnlineSessionChangedCallback = (result: SessionInfo) => void;
export interface NIMOnlineSessionAPI {
    InitEventHandlers(): void;
    QuerySessionList(minTime: number, maxTime: number, needLastMsg: boolean, limit: number, cb: QueryOnlineSessionListCallback | null): void;
    QuerySession(to_type: NIMSessionType, session_id: string, cb: QueryOnlineSessionInfoCallback | null): void;
    UpdateSession(to_type: NIMSessionType, session_id: string, ext: string, cb: UpdateOnlineSessionInfoCallback | null): void;
    DeleteSession(param: DeleteSessionParam, cb: DeleteOnlineSessionInfoCallback | null): void;
}