public async Task <LearningList> HandleGeneration(Dictionary dictionary)
{
var items = await _context.Items
.Where(i => i.DictionaryId == dictionary.Id)
.ToListAsync();
if (items.Count < 10)
{
throw new RestException(HttpStatusCode.BadRequest, ErrorType.NotEnoughItemsForLearningListGeneration);
}
var list = LearningListGenerator.Generate(items, dictionary.PreferredLearningListSize);
var learningList = new LearningList
{
DictionaryId = dictionary.Id,
Size = list.Count,
CreationDate = DateTime.Now,
CorrectAnswersToItemCompletion = dictionary.CorrectAnswersToItemCompletion,
IsHardModeEnabled = dictionary.IsHardModeEnabled,
LearningItems = list
};
return(learningList);
}
public void Delete(LearningModel l)
{
LearningList.Remove(l);
for (int i = 0; i < LearningList.Count; i++)
{
LearningList[i].Number = i + 1;
}
}
public static bool IsLearningListOutdated(LearningList learningList)
{
var creationDate = learningList.CreationDate;
var now = DateTime.Now;
if (creationDate.Day == now.Day)
{
return(false);
}
return(true);
}
public async Task Remove(LearningList learningList)
{
_context.LearningItems.RemoveRange(learningList.LearningItems);
_context.LearningLists.Remove(learningList);
var success = await _context.SaveChangesAsync() > 0;
if (!success)
{
throw new RestException(HttpStatusCode.InternalServerError, ErrorType.SavingChangesError);
}
}
public void Add(LearningModel l)
{
LearningList.Add(l);
l.Number = LearningList.Count;
}
public static void ProcessItemAnswer(Dictionary dictionary, LearningList list, LearningItem learningItem,
bool isAnswerCorrect)
{
var item = learningItem.Item;
item.TotalRepeatsCount++;
if (isAnswerCorrect)
{
item.CorrectAnswersCount++;
if (item.IsLearned)
{
item.LastLearnedRepeatDate = DateTime.Now;
item.LearnedRepeatsCount++;
return;
}
if (item.CorrectAnswersToCompletionCount != list.CorrectAnswersToItemCompletion &&
list.TimesCompleted != 1)
{
item.CorrectAnswersToCompletionCount++;
}
if (item.CorrectAnswersToCompletionCount == list.CorrectAnswersToItemCompletion)
{
if (item.IsStarred)
{
dictionary.StarredItemsCount--;
}
item.IsLearned = true;
item.IsStarred = false;
item.GoesForNextDay = false;
item.LastLearnedRepeatDate = DateTime.Now;
item.LearnedRepeatsCount++;
if (item.Type == ItemType.Word)
{
dictionary.LearnedWordsCount++;
}
else
{
dictionary.LearnedPhrasesCount++;
}
}
}
else
{
item.GoesForNextDay = true;
item.IsLearned = false;
item.LastLearnedRepeatDate = null;
item.LearnedRepeatsCount = 0;
if (list.IsHardModeEnabled)
{
item.CorrectAnswersToCompletionCount = 0;
}
else
{
item.CorrectAnswersToCompletionCount--;
}
}
}
