public Answer GetAnswer(string questionText, bool includeDebugInformation)
{
var stopWatch = new Stopwatch();
stopWatch.Start();
var question = new Question(questionText);
Answer answer = null;
var questionHandlerResolver = new QuestionHandlerResolver();
var questionHandler = questionHandlerResolver.FindQuestionHandlerThatCanAnswerTheQuestion(question);
try
{
if (questionHandler != null)
{
question.ResolveTokenValues();
answer = questionHandler.GetAnswer(question);
}
else
answer = new Answer(question, false, false, ErrorMessages.DidNotUnderstandQuestion);
}
catch(InvalidTokenValueException ex)
{
var errorMessage = ErrorMessages.DidNotUnderstandQuestion;
var understoodQuestion = questionHandler != null && questionHandler.UnderstoodQuestion;
if (understoodQuestion) errorMessage = ex.Message;
answer = new Answer(question, understoodQuestion, false, errorMessage);
}
if (includeDebugInformation)
{
answer.AddDebugInformation(question.DebugInformation);
answer.AddDebugInformation("Processing Time", String.Format("{0} ms", stopWatch.ElapsedMilliseconds.ToString()));
answer.AddDebugInformation("Tokens", answer.Question.FormatTextWithTokens());
answer.AddDebugInformation("Token Structure", answer.Question.FormatTokenStructure());
}
return answer;
}