private static Question LoadQuestion(string questionDirectoryPath)
{
var question = new Question();
foreach (var answerFilePath in Directory.GetFiles(questionDirectoryPath, "Answer*.cs"))
{
var answerLines = File.ReadLines(answerFilePath).ToList();
var answer = new Answer();
var correctAnswerLine = answerLines.FirstOrDefault(x => x.Contains("[CorrectAnswer"));
if (correctAnswerLine != null)
{
answer.IsCorrect = true;
question.Difficulty = ParseDifficulty(correctAnswerLine);
}
TrimToClass(answerLines);
LoadHighlightedSectionIndexes(answerLines, answer);
answer.Text = string.Join(Environment.NewLine, answerLines);
question.Answers.Add(answer);
}
question.ShuffleAnswers();
question.MarkdownHelpContent = LoadHelpContent(questionDirectoryPath);
return question;
}
private void SelectAnswer(Answer answer)
{
_selectedAnswer = answer;
Quiz.CurrentQuestion.SelectedAnswer = answer;
var canContinue = Quiz.MoveToNextQuestion();
if (!canContinue)
{
GoToNext();
return;
}
OnPropertyChanged();
}
private static int[] GetHighlightedLines(Answer answer)
{
var lineCount = answer.HighlightedSectionEndIndex - answer.HighlightedSectionBeginIndex + 1;
return Enumerable.Range(answer.HighlightedSectionBeginIndex + 1, lineCount).ToArray();
}
private static void LoadHighlightedSectionIndexes(List<string> answerLines, Answer answer)
{
answer.HighlightedSectionBeginIndex = answerLines.FindIndex(x => x.Contains("// begin"));
answerLines.RemoveAt(answer.HighlightedSectionBeginIndex);
answer.HighlightedSectionEndIndex = answerLines.FindIndex(x => x.Contains("// end")) - 1;
answerLines.RemoveAt(answer.HighlightedSectionEndIndex + 1);
}