public async Task <Result <Poll> > CreatePoll(IUnitOfWork unitOfWork, IPollRepository pollRepository, IUserRepository userRepository, NewPollDto newPollInfo)
{
Result <User> author = await userRepository.FindById(newPollInfo.AuthorId);
if (!author.IsSuccess)
{
return(Result.Map <Poll>(author));
}
Result validation = Validate(newPollInfo, author.Value.Nickname);
if (!validation.IsSuccess)
{
return(Result.Map <Poll>(validation));
}
Poll poll = new Poll(0, newPollInfo.AuthorId, newPollInfo.Question, false);
Result pollCreation = await pollRepository.Create(poll);
if (!pollCreation.IsSuccess)
{
return(Result.Map <Poll>(pollCreation));
}
foreach (string proposalText in newPollInfo.Proposals)
{
poll.AddProposal(proposalText);
}
Proposal noProposal = await pollRepository.GetNoProposal();
foreach (string guestNickname in newPollInfo.GuestNicknames)
{
Result <User> guest = await userRepository.FindByNickname(guestNickname);
if (!guest.IsSuccess)
{
return(Result.Map <Poll>(guest));
}
poll.AddGuest(guest.Value.UserId, noProposal);
}
await unitOfWork.SaveChanges();
return(Result.CreateSuccess(poll));
}
public Result Answer(int guestId, int proposalId)
{
Guest guest = _guests.SingleOrDefault(g => g.UserId == guestId);
if (guest == null)
{
return(Result.CreateError(Errors.UnknownGuest, UnknownGuestMsg));
}
if (guest.Vote.ProposalId != 0)
{
return(Result.CreateError(Errors.AlreadyAnswered, AlreadyAnsweredMsg));
}
Proposal proposal = _proposals.SingleOrDefault(p => p.ProposalId == proposalId);
if (proposal == null)
{
return(Result.CreateError(Errors.UnknownProposal, UnknownProposalMsg));
}
guest.Answer(proposal);
return(Result.CreateSuccess());
}
internal void OnDelete()
{
Poll = null;
Vote = null;
}
internal void Answer(Proposal proposal)
{
Vote = proposal;
proposal.OnChoose(this);
}
internal static Guest Create(int userId, Poll poll, Proposal vote)
=> new Guest(userId, poll.PollId)
{
Poll = poll, Vote = vote
};