public async Task <CheckResultModel> Check(Guid testId, Guid questionId, ICollection <Guid> answersId)
{
var test = await _httpService.GetTestByIdAsync(testId);
if (test.QuestionsIds.Contains(questionId) == false)
{
throw new ArgumentException();
}
var question = await _httpService.GetQuestionByIdAsync(questionId);
foreach (var id in question.AnswersIds)
{
if (question.AnswersIds.Contains(id) == false)
{
throw new ArgumentException();
}
}
var requestedAnswers = new List <Answer>();
foreach (var id in answersId)
{
requestedAnswers.Add(await _httpService.GetAnswerByIdAsync(id));
}
bool result = requestedAnswers.Count == question.AnswersIds.Count;
foreach (var b in requestedAnswers)
{
if (b.IsCorrect == false)
{
result = false;
break;
}
}
var answers = new List <Answer>();
foreach (var id in question.AnswersIds)
{
var res = await _httpService.GetAnswerByIdAsync((Guid)id);
answers.Add(res);
}
return(new CheckResultModel
{
Correct = result,
CorrectAnswers = answers
.Where(x => x.IsCorrect)
.ToList()
});
}
