public async Task <IActionResult> PutQuestionVote(QuestionVoteViewModel model)
{
if (model.Vote != 1 && model.Vote != -1)
{
return(BadRequest());
}
var user = await userManager.FindByNameAsync(User.Identity.Name);
if (user == null)
{
return(Unauthorized());
}
var question = await _context.Questions.Where(x => x.ID == model.QuestionId).FirstOrDefaultAsync();
if (question == null)
{
return(NotFound());
}
var vote = await _context.QuestionVotes.Where(x => x.UserId == user.Id && x.QuestionId == model.QuestionId).FirstOrDefaultAsync();
if (vote == null)
{
return(NotFound("Question has not been voted on yet."));
}
if (vote.UserId != user.Id)
{
return(Unauthorized());
}
if (vote.Vote == model.Vote)
{
return(BadRequest($"The vote already is {vote.Vote}"));
}
var previousVote = vote.Vote;
vote.Vote = model.Vote;
if (previousVote == 1)
{
question.Upvotes -= 1;
question.Downvotes += 1;
}
else
{
question.Upvotes += 1;
question.Downvotes -= 1;
}
await _context.SaveChangesAsync();
return(NoContent());
}
public async Task <IActionResult> PostQuestionVote(QuestionVoteViewModel model)
{
var user = await userManager.FindByNameAsync(User.Identity.Name);
if (user == null)
{
return(Unauthorized());
}
var question = await _context.Questions.Where(x => x.ID == model.QuestionId).FirstOrDefaultAsync();
if (question == null)
{
return(NotFound());
}
var vote = await _context.QuestionVotes.Where(x => x.UserId == user.Id && x.QuestionId == model.QuestionId).FirstOrDefaultAsync();
if (vote != null)
{
return(BadRequest("Question has already been voted on."));
}
var questionVote = new QuestionVote
{
QuestionId = model.QuestionId,
UserId = user.Id,
Vote = model.Vote
};
_context.QuestionVotes.Add(questionVote);
if (model.Vote == 1)
{
question.Upvotes += 1;
}
else
{
question.Downvotes += 1;
}
await _context.SaveChangesAsync();
return(NoContent());
}
