public async Task StartVote(string questionTitle)
{
var currentQuestion = await _votingRepository.GetCurrentQuestion();
if (currentQuestion != null && !currentQuestion.HasFinished)
{
throw new InvalidOperationException("Cannot start a new vote, as there is already a vote in progress");
}
_votingRepository.AddQuestion(new Question {
Id = Guid.NewGuid(),
Title = questionTitle,
DateCreated = DateTimeOffset.Now,
HasFinished = false
});
await _unitOfWork.SaveChangesAsync();
Clients.All.voteStarted(questionTitle);
}
