// GET: Index
public ActionResult Index(int?deckId)
{
int id = 0;
//REMOVE OPTIONAL AFTER TESTING - Jon
if (!deckId.HasValue)
{
id = 1;
}
else
{
id = deckId.Value;
}
// Get Data for view model
DeckItem deck = _db.GetDeck(id);
deck.Cards = _db.GetAllCardsForDeck(id);
StudyDeck studyDeck = new StudyDeck
{
Deck = deck
};
bool sessionStarted = StartStudyDeckSession(studyDeck);
//Add data to view model
StudyIndexViewModel IndexView = new StudyIndexViewModel
{
StudyDeck = studyDeck,
SessionStarted = sessionStarted
};
return(View("Index", IndexView));
}
/// <summary>
/// Returns active study session for a deck. If no active session, returns CurrentCard property as -1
/// </summary>
/// <param name="deckName">Name of deck to be studied</param>
/// <returns>Session deck if session exists. Blank StudyDeck with CurrentCard at -1 if session does not exist</returns>
private StudyDeck GetActiveStudyDeckSession(string deckName)
{
StudyDeck result = new StudyDeck();
if (Session["StudyDeck" + deckName] != null)
{
result = Session["StudyDeck" + deckName] as StudyDeck;
result.CurrentCard = -1;
}
return(result);
}
/// <summary>
/// Update a studyDeck in the session
/// </summary>
/// <param name="studyDeck">StudyDeckObject with update data</param>
/// <returns>true if session existed, false if there is no session</returns>
private bool UpdateStudyDeckSession(StudyDeck studyDeck)
{
bool sessionExists = true;
if (Session["StudyDeck" + studyDeck.Deck.Name] == null)
{
sessionExists = false; // <-- no session exists
}
else
{
Session["StudyDeck" + studyDeck.Deck.Name] = false;
}
return(sessionExists);
}
/// <summary>
/// Attempt to start a study session for a deck.
/// </summary>
/// <param name="studyDeck">StudyDeck Object to be studied</param>
/// <returns>true if there is no existing session for deck, false is session already exists</returns>
private bool StartStudyDeckSession(StudyDeck studyDeck)
{
bool noExistingSessionForDeck = true;;
if (Session["StudyDeck" + studyDeck.Deck.Name] == null)
{
Session["StudyDeck" + studyDeck.Deck.Name] = studyDeck; // <-- saves the Study deck to the session
}
else
{
noExistingSessionForDeck = false;
}
return(noExistingSessionForDeck);
}
/// <summary>
/// Returns active study session for a deck. If no active session, returns CurrentCard property as -1
/// </summary>
/// <param name="deckName">Name of deck to be studied</param>
/// <returns>Session deck if session exists. Blank StudyDeck with CurrentCard at -1 if session does not exist</returns>
private StudyDeck GetActiveStudyDeckSession(int deckId)
{
StudyDeck result = new StudyDeck();
if (Session["StudyDeck" + deckId] != null)
{
result = Session["StudyDeck" + deckId] as StudyDeck;
}
else
{
result.CurrentCard = -1;
}
return(result);
}
//Get: StudyCard
public ActionResult StudyCard(int deckId)
{
StudyDeck studyDeck = GetActiveStudyDeckSession(deckId);
StudyCardViewModel viewModel = new StudyCardViewModel
{
Card = studyDeck.Deck.Cards[studyDeck.CurrentCard],
CardNumber = studyDeck.CurrentCard + 1,
TotalCardNumber = studyDeck.Deck.Cards.Count(),
DeckName = studyDeck.Deck.Name,
DeckId = studyDeck.Deck.Id
};
return(View("StudyCard", viewModel));
}
//Get: StudyResult
public ActionResult StudyResult(int deckId)
{
StudyDeck studyDeck = GetActiveStudyDeckSession(deckId);
StudyResultViewModel viewModel = new StudyResultViewModel
{
DeckName = studyDeck.Deck.Name,
NumberCorrect = studyDeck.NumberCorrect,
PercentScore = studyDeck.ScoreString,
TotalCards = studyDeck.Deck.Cards.Count,
DeckId = deckId
};
EndCurrentStudyDeckSession(deckId);
return(View("StudyResult", viewModel));
}
public ActionResult StudyCard(int deckId, bool isRight)
{
string action = "StudyCard";
StudyDeck studyDeck = GetActiveStudyDeckSession(deckId);
if (!studyDeck.CurrentCardIsLast)
{
int cardNumber = NextCardInStudyDeckSession(deckId, isRight);
}
else
{
action = "StudyResult";
if (isRight)
{
studyDeck.NumberCorrect++;
}
}
return(RedirectToAction(action, "Study", new { deckId = deckId }));
}
/// <summary>
/// Add 1 to Current Card in the deck Session. Also adds 1 to NumberCorrect if correct.
/// </summary>
/// <param name="deckName">Name of Deck in Session</param>
/// <param name="wasRight">Whether or not question was answered correctly</param>
/// <returns>new CurrentCard value, returns -1 if no Session exists</returns>
private int NextCardInStudyDeckSession(string deckName, bool wasRight)
{
int nextCardId = -1;
//Get Deck from session
StudyDeck currentStudyDeck = GetActiveStudyDeckSession(deckName);
if (currentStudyDeck.CurrentCard != -1)
{
//Add 1 to current card
currentStudyDeck.CurrentCard++;
nextCardId = currentStudyDeck.CurrentCard;
//Add to NumberCorrect if right
if (wasRight)
{
currentStudyDeck.NumberCorrect++;
}
//Update session with current card
UpdateStudyDeckSession(currentStudyDeck);
}
return(nextCardId);
}
