public async Task <QuestionSubmissionChallengeDto> Handle(SubmitAnswerCommand request, CancellationToken cancellationToken)
{
var team = await _context.Teams.Include(t => t.QuestionSubmissions)
.Include(t => t.Users)
.FirstOrDefaultAsync(t => t.EventId == request.EventId &&
t.Users.Any(u => u.Id == _currentUserService.UserId), cancellationToken);
if (team == null)
{
throw new NotFoundException("Team was not found for current user");
}
var question = await _context.Questions.Include(q => q.Challenge)
.ThenInclude(c => c.Questions)
.FirstOrDefaultAsync(q => q.Id == request.QuestionId, cancellationToken);
var isCorrect = question.Answer == request.Answer;
// Create or update submission
var submissions = await _context.QuestionSubmissions.Where(qs => qs.QuestionId == request.QuestionId).ToListAsync(cancellationToken);
var calculatedPoints = isCorrect ? CalculatePoints(submissions, question.Point) : 0;
var submission = submissions.FirstOrDefault(qs => qs.TeamId == team.Id);
if (submission == null)
{
submission = QuestionSubmission.Create(request.QuestionId, team.Id, isCorrect, request.Answer, calculatedPoints);
await _context.QuestionSubmissions.AddAsync(submission, cancellationToken);
}
else
{
if (submission.IsCorrect)
{
return(_mapper.Map <QuestionSubmissionChallengeDto>(submission));
}
submission.Update(isCorrect, request.Answer, calculatedPoints);
}
if (submission.IsCorrect)
{
await UpdateTeamResultAsync(request.EventId, team, submission, question);
}
await _context.SaveChangesAsync(cancellationToken);
return(_mapper.Map <QuestionSubmissionChallengeDto>(submission));
}
