public string Generate(Test test)
{
List <string> exercises = new List <string>();
List <string> answers = new List <string>();
ConcurrentBag <string> bagOfAnswers = new ConcurrentBag <string>();
ConcurrentBag <string> bagOfExercises = new ConcurrentBag <string>(); // used when using multiple threads
TestGeneratorForm.fr.progressBar1.Visible = true;
TestGeneratorForm.fr.progressBar1.Value = 0;
TestGeneratorForm.fr.progressBar1.Maximum = TestGeneratorForm.fr.richTextBox2.Text.Split(new string[] { "\n", "\r\n" }, StringSplitOptions.RemoveEmptyEntries).Length;
Dictionary <string, string> buffer = new Dictionary <string, string>();
Random rndm = new Random();
test.Result = ""; // reset the result property to prevent "stacking" of tests
string suggestedAnswerKey = "";
int n = 1;
while (n <= test.ExcerciseAmount && test.WordsAndTypes.Count > 0)
{
int randomExercise = rndm.Next(0, test.WordsAndTypes.Count - 1);
string key = test.WordsAndTypes.ElementAt(randomExercise).Key;
string value = test.WordsAndTypes[key];
KeyValuePair <string, string> pair = new KeyValuePair <string, string>(key, value);
if (!Utility.IsValidEntry(pair, test.Type))
{
test.WordsAndTypes.Remove(key);
continue;
}
buffer.Add(key, test.WordsAndTypes[key]);
test.WordsAndTypes.Remove(key);
n++;
}
test.WordsAndTypes = buffer;
switch (TestGeneratorForm.generatingSpeed)
{
case "Normal":
foreach (KeyValuePair <string, string> entry in test.WordsAndTypes)
{
TestGeneratorForm.fr.progressBar1.Value++;
switch (test.Type)
{
case "Definitions":
exercises.Add(Read(Definitions.Get(entry.Value, entry.Key)));
answers.Add(entry.Key);
break;
case "Examples":
exercises.Add(Regex.Replace(Read(Examples.Get(entry.Value, entry.Key)), entry.Key, new string('_', entry.Key.Length), RegexOptions.IgnoreCase));
answers.Add(entry.Key);
break;
case "Words":
exercises.Add(entry.Key + new string('.', 50) + " (" + entry.Value.TrimEnd() + ")");
break;
case "Multi-Choices":
char answer = 'A'; // stores the correct answer for each exercise
exercises.Add(Regex.Replace(Read(Examples.Get(entry.Value, entry.Key)), entry.Key, new string('_', entry.Key.Length), RegexOptions.IgnoreCase) + "\n" + Synonyms.Request(entry.Key, out answer));
answers.Add(answer.ToString());
break;
}
}
break;
case "Fast":
System.Threading.Tasks.Parallel.ForEach(test.WordsAndTypes, entry =>
{
switch (test.Type)
{
case "Definitions":
bagOfExercises.Add(Read(Definitions.Get(entry.Value, entry.Key)));
bagOfAnswers.Add(entry.Key);
break;
case "Examples":
bagOfExercises.Add(Regex.Replace(Read(Examples.Get(entry.Value, entry.Key)), entry.Key, new string('_', entry.Key.Length), RegexOptions.IgnoreCase));
bagOfAnswers.Add(entry.Key);
break;
case "Words":
bagOfExercises.Add(entry.Key + new string('.', 50) + " (" + entry.Value.TrimEnd() + ")");
break;
case "Multi-Choices":
char answer = 'A'; // stores the correct answer for each exercise
bagOfExercises.Add(Regex.Replace(Read(Examples.Get(entry.Value, entry.Key)), entry.Key, new string('_', entry.Key.Length), RegexOptions.IgnoreCase) + "\n" + Synonyms.Request(entry.Key, out answer));
bagOfAnswers.Add(answer.ToString());
break;
}
});
exercises = bagOfExercises.ToList(); // Converts the bagOfExercises variable to List and sets it to exercises variable
answers = bagOfAnswers.ToList();
break;
}
foreach (var exercise in exercises.ToList())
{
if ((exercise.Contains("Couldn't find ") && (exercise.Contains("NotFound") || exercise.Contains("ERROR")) && answers.Any()) ||
(!(exercise.Contains("_")) && answers.Any() && (test.Type == "Examples" ||
test.Type == "Multi-Choices"))) // remove all of the words that were not found in the Oxford Dictionary
{
answers.RemoveAt(exercises.IndexOf(exercise));
exercises.Remove(exercise);
}
}
if (exercises.Count - test.ExcerciseAmount < 0) // if there are not enough words to make a test, lower the exercise amount
{
test.ExcerciseAmount -= (test.ExcerciseAmount - exercises.Count);
}
test.Result += "~~~~~" + test.Name + "~~~~~\n";
suggestedAnswerKey += (answers.Any()) ? "~~~~~ Suggested Answer Key ~~~~~\n" : string.Empty;
string answerKey = "";
n = 1;
while (n <= test.ExcerciseAmount)
{
int randomExercise = rndm.Next(0, exercises.Count);
test.Result += "------------------[Ex. " + n + "]------------------\n" + exercises[randomExercise] + "\n";
suggestedAnswerKey += (answers.Any()) ? "[Ex. " + n + "] - " + answers[randomExercise] + "\n" : string.Empty;
exercises.RemoveAt(randomExercise);
if (answers.Any())
{
if (test.Type == "Multi-Choices")
{
answerKey += n.ToString() + "-" + answers[randomExercise] + "\n";
AnswerSheet.Generate(test.Name, test.ExcerciseAmount, 1, 4, answerKey);
}
answers.RemoveAt(randomExercise);
}
n++;
}
test.Result += "\n" + suggestedAnswerKey;
TestGeneratorForm.fr.progressBar1.Visible = false;
return(test.Result);
}