/// <summary>
/// This method process an exam.
/// </summary>
/// <param name="examResult">List<ExamResult></param>
/// <returns>Boolean</returns>
public async Task <bool> ProcessExamResult(List <ExamResult> examResult)
{
// gets list of questions and answer for the current examId from the database
var examId = examResult.First().ExamId;
var currentQuestions = await _askMeRepository.GetExamQuestions(examId);
// creates variables to store total success, total failed
var totalSuccess = 0;
var totalFailed = 0;
// iterates exam result sent and compare it if the answers are success
foreach (var question in examResult)
{
var isQuestionSuccess = true;
var currentQuestion = currentQuestions.Questions.FirstOrDefault(q => q.Id == question.QuestionId);
foreach (var answer in question.Answers)
{
var currentAnswer = currentQuestion.Answers.FirstOrDefault(a => a.Id == answer.AnswerId);
if (answer.AnswerValue != currentAnswer.IsAccepted)
{
isQuestionSuccess = false;
}
}
_ = isQuestionSuccess ? ++totalSuccess : ++totalFailed;
}
// saves the results in the database
var result = new Result
{
ExamId = examId,
TotalFailed = totalFailed,
TotalSuccess = totalSuccess
};
return(await _askMeRepository.AddResults(result));
}
public async Task <ExamQuestions> GetExamQuestions(int examId)
{
return(await _askMeRepository.GetExamQuestions(examId));
}