public override async Task OnDisconnectedAsync(Exception?exception)
{
string user = _sessionService.GetUserNameByConnectionId(Context.ConnectionId);
var activeFriends = _friendsService.GetActiveFriendByUserName(user);
if (activeFriends != null)
{
await Clients.Clients(activeFriends).NotificationFriendChangeStatus(user, false);
}
_sessionService.CloseSessionUser(user);
await base.OnDisconnectedAsync(exception);
}