public async Task DownVote(int linkId, string userId)
{
var link = await _linksRepository.GetById(linkId);
if (await _votesRepository.AlreadyVoted(linkId, userId))
{
var vote = await _votesRepository.GetByLinkId(linkId);
switch (vote.VoteType)
{
// Down - return
case VoteType.Down: return;
// Up - none vote
case VoteType.Up:
{
vote.VoteType = VoteType.NonVote;
link.Ups--;
break;
}
// none vote - down
case VoteType.NonVote:
{
vote.VoteType = VoteType.Down;
link.Downs++;
break;
}
}
// TODO: Save vote and link to database
await _linksRepository.Update(link);
await _votesRepository.Update(vote);
}
else
{
// create new down vote
var user = await _userRepository.GetById(userId);
var newVote = new Vote(link, user, VoteType.Down);
link.Downs++;
await _votesRepository.Add(newVote);
await _linksRepository.Update(link);
}
}