declare namespace Chat {
  type Message = {
    type: string;
    sub_type?: string;
    text: string;
    user_id?: string;
    source_url?: string;
    file_id?: string;
  };

  type ChannelType = {
    action: string;
    room_id: string;
    data: any;
  };

  type RoomRecord = {
    created_at: string;
    from_user_avatar: string;
    from_user_id: string;
    from_user_name: string;
    id: string;
    message: Message[];
    room_id: string;
    to_user_ids: string[];
  };

  type RoomInfo = {
    allow_user_ids: string[];
    creator: string;
    creator_id: string;
    id: string;
    name: string;
    org_id: string;
    created_at: string;
    record: RoomRecord[];
    updated_at: string;
    updated_by: string;
    last_record:
      | {
          id: string;
          room_id: string;
          created_at: string;
          from_user_id: string;
          message: Message[];
          room_id: string;
          to_user_id: string;
        }
      | undefined;
  };

  type RoomChannelInfo = {
    id: string;
    op: string;
    room: RoomInfo;
  };

  type Room = {
    onlineUserIDs: string[];
    records: RoomRecord[];
    room: RoomInfo | undefined;
  };
}