public MessageHub(IMessageRepository messageRepository,
IMapper mapper, IUserRepository userRepository,
IHubContext <PrescenceHub> prescenceHub, PrescenceTracker tracker)
{
_tracker = tracker;
_prescenceHub = prescenceHub;
_userRepository = userRepository;
_mapper = mapper;
_messageRepository = messageRepository;
}
public PrescenceHub(PrescenceTracker tracker)
{
_tracker = tracker;
}