public static List <CardPack> GetCardPacks()
{
log.Info("ShopAdministration - GetCardPacks()");
List <CardPack> allCardPacks = null;
try
{
using (var context = new clonestoneEntities())
{
allCardPacks = context.AllCardPacks.OrderBy(x => x.NumberOfCards).ToList();
}
}
catch (Exception ex)
{
log.Error("ShopAdministration - GetCardPacks() - Exception", ex);
if (ex.InnerException != null)
{
log.Error("ShopAdministration - GetCardPacks() - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(allCardPacks);
}
public static Card GetCard(int id)
{
log.Info("CardAdministration - GetCard(id)");
Card card = null;
if (id < 1)
{
throw new ArgumentException("invalid card id", nameof(id));
}
try
{
using (var context = new clonestoneEntities())
{
card = context.AllCards.FirstOrDefault(x => x.ID == id);
}
}
catch (Exception ex)
{
log.Error("CardAdministration - GetCard(id) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("CardAdministration - GetCard(id) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(card);
}
/// <summary>
/// Returns login status for given credentials
/// </summary>
/// <param name="username">username to login</param>
/// <param name="password">password to login</param>
/// <exception cref="ArgumentException">in case any parameter is null or empty</exception>
/// <exception cref="Exception">in case of a database error</exception>
/// <returns>login status for given credentials</returns>
public static LoginResult Login(string username, string password)
{
log.Info("UserAdministration - Login");
LoginResult result = LoginResult.NotSet;
if (string.IsNullOrEmpty(username))
{
throw new ArgumentException($"{nameof(username)} is null or empty");
}
if (string.IsNullOrEmpty(password))
{
throw new ArgumentException($"{nameof(password)} is null or empty");
}
try
{
using (var context = new clonestoneEntities())
{
User user = context.AllUsers.FirstOrDefault(x => x.Username.Equals(username));
if (user != null)
{
byte[] hashedPassword = Tools.GetHash(password + user.UserSalt);
if (user.Password.SequenceEqual(hashedPassword))
{
result = LoginResult.Successful;
log.Debug($"User {username} logged in successfully");
}
else
{
result = LoginResult.InvalidPassword;
log.Warn($"User {username} entered invalid password");
}
}
else
{
result = LoginResult.InvalidUsername;
}
}
}
catch (Exception ex)
{
log.Error("UserAdministration - Login - Exception", ex);
if (ex.InnerException != null)
{
log.Error("UserAdministration - Login - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(result);
}
/// <summary>
/// returns a user object for a given username
/// </summary>
/// <param name="username">a non-empty, existing username</param>
/// <returns>user object for given username</returns>
/// <exception cref="Exception">in case of a common db error</exception>
/// <exception cref="ArgumentNullException">username is null or empty</exception>
/// <exception cref="ArgumentException">invalid username</exception>
public static User GetUser(string username)
{
log.Info("UserAdministration - GetUser(username)");
User currentUser = null;
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException(nameof(username));
}
try
{
/// open connection and keep it open for as long as needed
using (var context = new clonestoneEntities())
{
currentUser = context.AllUsers
/// therefore we should/could/may (as userstory indicates!)
/// eager load any navigation properties
.Include(x => x.UserRole)
.FirstOrDefault(x => x.Username.Equals(username));
if (currentUser == null)
{
throw new ArgumentException($"Invalid username {username}");
}
} /// connection will be close
/// so at this point LAZY LOADING is NOT available anymore!!
}
catch (Exception ex)
{
log.Error("UserAdministration - GetUser(username) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("UserAdministration - GetUser(username) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(currentUser);
}
/// <summary>
/// Returns a list of deckCards assigned to a given idDeck
/// </summary>
/// <param name="idDeck"></param>
/// <returns></returns>
public static List <DeckCard> GetCardsInDeck(int idDeck)
{
log.Info("DeckAdministration - GetCardsInDeck(idDeck)");
List <DeckCard> deckCards = null;
if (idDeck < 1)
{
throw new ArgumentException("Invalid idDeck");
}
try
{
using (var context = new clonestoneEntities())
{
Deck deck = context.AllDecks
.Include(x => x.AllDeckCards) /// eager loading of deckCards
.Include(x => x.AllDeckCards.Select(y => y.Card)) /// eager loading of cards
.FirstOrDefault(x => x.ID == idDeck);
if (deck == null)
{
throw new ArgumentException("Invalid idDeck");
}
deckCards = deck.AllDeckCards.ToList();
}
}
catch (Exception ex)
{
log.Error("DeckAdministration -GetDeckCardsForDeck(idDeck) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("DeckAdministration - GetDeckCardsForDeck(idDeck) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(deckCards);
}
public static List <Deck> GetUserDecks(string username)
{
log.Info("DeckAdministration - GetUserDecks(username)");
List <Deck> userDecks = null;
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException(nameof(username));
}
try
{
using (var context = new clonestoneEntities())
{
User user = context.AllUsers
.Include(x => x.AllDecks)
.Include(x => x.AllDecks.Select(y => y.AllDeckCards))
.FirstOrDefault(x => x.Username.Equals(username));
if (user == null)
{
throw new ArgumentException("Invalid username", nameof(username));
}
userDecks = user.AllDecks.ToList();
}
}
catch (Exception ex)
{
log.Error("DeckAdministration - GetUserDecks(username) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("DeckAdministration - GetUserDecks(username) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(userDecks);
}
/// <summary>
/// Returns a user role for a given username
/// </summary>
/// <param name="username">a non-empty username</param>
/// <returns>user role of given username</returns>
/// <exception cref="Exception">in case of a database error</exception>
/// <exception cref="ArgumentNullException">if username is null or empty</exception>
/// <exception cref="ArgumentException">if username is unknown</exception>
public static UserRole GetUserRole(string username)
{
log.Info("RolesAdministration - GetUserRoles(username)");
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException(nameof(username));
}
UserRole userRole = null;
try
{
using (var context = new clonestoneEntities())
{
User currentUser = context.AllUsers.FirstOrDefault(x => x.Username.Equals(username));
if (currentUser != null)
{
userRole = currentUser.UserRole;
}
else
{
throw new ArgumentException($"Invalid username {username}");
}
}
}
catch (Exception ex)
{
log.Error("RolesAdministration - GetUserRoles(username) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("RolesAdministration - GetUserRoles(username) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(userRole);
}
public static bool AddCardToDeck(int idDeck, int idCard)
{
log.Info("DeckAdministration - AddCardToDeck(idDeck, idCard)");
bool result = false;
if (idDeck < 1)
{
throw new ArgumentException("Invalid idDeck");
}
if (idCard < 1)
{
throw new ArgumentException("Invalid idCard");
}
try
{
using (var context = new clonestoneEntities())
{
Deck deck = context.AllDecks.FirstOrDefault(x => x.ID == idDeck);
if (deck == null)
{
throw new ArgumentException("Invalid idDeck");
}
Card card = context.AllCards.FirstOrDefault(x => x.ID == idCard);
if (card == null)
{
throw new ArgumentException("Invalid idCard");
}
/// check if card is already present in deck
DeckCard deckCard = deck.AllDeckCards.FirstOrDefault(x => x.ID_Card == idCard);
/// if so
if (deckCard != null)
{
/// increase number
deckCard.NumberOfCards++;
}
else
{
/// else, add new entry
deckCard = new DeckCard()
{
Card = card,
Deck = deck
};
deck.AllDeckCards.Add(deckCard);
}
context.SaveChanges();
result = true;
}
}
catch (Exception ex)
{
log.Error("DeckAdministration - AddCardToDeck(idDeck, idCard) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("DeckAdministration - AddCardToDeck(idDeck, idCard) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(result);
}
/// <summary>
/// Returns a list of UserCards available for a given idDeck
/// </summary>
/// <param name="idDeck"></param>
/// <returns></returns>
/// <exception cref="Exception">in case db access fails</exception>
public static List <UserCard> GetCardsForDeck(string username, int idDeck)
{
log.Info("DeckAdministration - GetDeckCards(username, idDeck)");
List <UserCard> userCards = null;
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException(nameof(username));
}
if (idDeck < 1)
{
throw new ArgumentException("Invalid idDeck");
}
try
{
using (var context = new clonestoneEntities())
{
User user = context.AllUsers
.Include(x => x.AllUserCards)
.Include(x => x.AllUserCards.Select(y => y.Card))
.FirstOrDefault(x => x.Username.Equals(username));
if (user == null)
{
throw new ArgumentException("Invalid username");
}
/// get ALL cards assigned to this user
userCards = user.AllUserCards.ToList();
/// get deck for given idDeck
Deck deck = context.AllDecks.FirstOrDefault(x => x.ID == idDeck);
if (deck == null)
{
throw new ArgumentException("Invalid idDeck");
}
/// iterate over all userCards
foreach (var userCard in userCards)
{
/// check if current userCard is already present in current deck
DeckCard deckCard = deck.AllDeckCards.FirstOrDefault(x => x.ID_Card == userCard.ID_Card);
/// if card is already in deck
if (deckCard != null)
{
/// decrease number of cards available
userCard.NumberOfCards -= deckCard.NumberOfCards;
}
}
/// return only those cards, whose number is greater than 0
userCards = userCards.Where(x => x.NumberOfCards > 0).ToList();
}
}
catch (Exception ex)
{
log.Error("DeckAdministration - GetDeckCards(username, idDeck) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("DeckAdministration - GetDeckCards(username, idDeck) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(userCards);
}
public static bool RemoveCardFromDeck(int idDeck, int idCard)
{
log.Info("DeckAdministration - RemoveCardFromDeck(idDeck, idCard)");
bool result = false;
if (idDeck < 1)
{
throw new ArgumentException("Invalid idDeck");
}
if (idCard < 1)
{
throw new ArgumentException("Invalid idCard");
}
try
{
using (var context = new clonestoneEntities())
{
Deck deck = context.AllDecks.FirstOrDefault(x => x.ID == idDeck);
if (deck == null)
{
throw new ArgumentException("Invalid idDeck");
}
Card card = context.AllCards.FirstOrDefault(x => x.ID == idCard);
if (card == null)
{
throw new ArgumentException("Invalid idCard");
}
/// get existing deckCard
DeckCard deckCard = deck.AllDeckCards.FirstOrDefault(x => x.ID_Card == idCard);
/// if so
if (deckCard != null)
{
/// decrease number
deckCard.NumberOfCards--;
/// remove entry if necessary
if (deckCard.NumberOfCards == 0)
{
deck.AllDeckCards.Remove(deckCard);
}
}
context.SaveChanges();
result = true;
}
}
catch (Exception ex)
{
log.Error("DeckAdministration - RemoveCardFromDeck(idDeck, idCard) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("DeckAdministration - RemoveCardFromDeck(idDeck, idCard) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(result);
}
/// <summary>
/// Registers a new user in data storage
/// adds three static user decks with randomized deck names
/// returns true if successful, otherelse false
/// throws exception on invalid data
/// </summary>
/// <param name="firstName"></param>
/// <param name="lastName"></param>
/// <param name="gamerTag"></param>
/// <param name="username"></param>
/// <param name="password"></param>
/// <param name="avatar"></param>
/// <returns></returns>
/// <exception cref="ArgumentException">invalid data within parameters</exception>
/// <exception cref="Exception">in case of a database error</exception>
public static RegisterResult Register(string firstName, string lastName, string gamerTag, string username, string password)
{
log.Info("UserAdministration - Register");
RegisterResult result = RegisterResult.NotSet;
if (string.IsNullOrEmpty(firstName))
{
throw new ArgumentException($"{nameof(firstName)} is null or empty");
}
if (string.IsNullOrEmpty(lastName))
{
throw new ArgumentException($"{nameof(lastName)} is null or empty");
}
if (string.IsNullOrEmpty(gamerTag))
{
throw new ArgumentException($"{nameof(gamerTag)} is null or empty");
}
if (string.IsNullOrEmpty(username))
{
throw new ArgumentException($"{nameof(username)} is null or empty");
}
if (string.IsNullOrEmpty(password))
{
throw new ArgumentException($"{nameof(password)} is null or empty");
}
try
{
using (var context = new clonestoneEntities())
{
User user = context.AllUsers.FirstOrDefault(x => x.Username.Equals(username));
if (user != null)
{
result = RegisterResult.UsernameExists;
log.Debug($"Username {username} exists");
}
else
{
string userSalt = Tools.GenerateSalt(128);
user = new User()
{
FirstName = firstName,
LastName = lastName,
GamerTag = gamerTag,
Username = username, // = email
Password = Tools.GetHash(password + userSalt),
UserSalt = userSalt,
ID_UserRole = UserRole.PLAYER
};
for (int i = 0; i < User.MAX_DECK; i++)
{
Deck userDeck = new Deck()
{
Name = $"{gamerTag}'s {Deck.GetRandomizedDeckName}",
User = user
};
context.AllDecks.Add(userDeck);
//user.AllDecks.Add(userDeck);
}
context.AllUsers.Add(user);
context.SaveChanges();
result = RegisterResult.Successful;
log.Debug($"Username {username} registered!");
}
}
}
catch (Exception ex)
{
log.Error("UserAdministration - Register - Exception", ex);
if (ex.InnerException != null)
{
log.Error("UserAdministration - Register - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(result);
}
/// <summary>
/// creates a pack with a number of cards
/// cards will be chosen at random
/// random cards may be duplicates
/// assign cards to user
/// decrease money of user by price of pack
/// add new virtual purchase entry
/// </summary>
/// <param name="idCardPack"></param>
/// <param name="username"></param>
/// <returns></returns>
public static BuyResult BuyPack(int idCardPack, string username)
{
log.Info("ShopAdministration - BuyPack(idCardPack, username)");
BuyResult result = BuyResult.Success;
if (idCardPack <= 0)
{
throw new ArgumentException("Invalid Value", nameof(idCardPack));
}
if (string.IsNullOrEmpty(username))
{
throw new ArgumentNullException(nameof(username));
}
try
{
using (var context = new clonestoneEntities())
{
User user = context.AllUsers.FirstOrDefault(x => x.Username == username);
if (user == null)
{
throw new ArgumentException("Invalid value", nameof(username));
}
CardPack cardPack = context.AllCardPacks.FirstOrDefault(x => x.ID == idCardPack);
if (cardPack == null)
{
throw new ArgumentException("Invalid value", nameof(idCardPack));
}
if (user.AmountMoney < cardPack.Price)
{
log.Debug($"User {username} has not enough money for Pack {idCardPack}");
result = BuyResult.NotEnoughMoney;
}
else
{
log.Debug($"Reduce money of user by {cardPack.Price}");
user.AmountMoney -= cardPack.Price;
VirtualPurchase purchase = new VirtualPurchase()
{
ID_CardPack = idCardPack,
ID_User = user.ID,
NumberOfPacks = 1,
PurchaseDate = DateTime.Now
};
context.AllVirtualPurchases.Add(purchase);
log.Debug($"Added new VirtualPurchas for user {username}");
int count = context.AllCards.Count();
log.Debug($"Start creating random cards for pack {idCardPack}");
/// create cards at random
for (int numberOfCard = 0; numberOfCard < cardPack.NumberOfCards; numberOfCard++)
{
/// get a valid idCard (generated by random)
Card randomCard = context.AllCards.OrderBy(x => x.ID).Skip(RandomNumberGenerator.Next(0, count)).Take(1).Single();
log.Debug($"\tRandomCard {randomCard.Name} (ID: {randomCard.ID})");
/// save new card to userCards
/// if card is already an userCard
/// increase number
UserCard userCard = user.AllUserCards.Where(x => x.ID_Card == randomCard.ID).FirstOrDefault();
if (userCard != null)
{
log.Debug($"\t\tUserCard already exists - increase numberOfCards");
userCard.NumberOfCards++;
}
else /// else - add new userCard
{
log.Debug($"\t\tAdd NEW UserCard");
userCard = new UserCard()
{
ID_User = user.ID,
ID_Card = randomCard.ID,
NumberOfCards = 1
};
context.AllUserCards.Add(userCard);
}
}
context.SaveChanges();
log.Debug($"Finished adding random cards!");
}
}
}
catch (Exception ex)
{
log.Error("ShopAdministration - BuyPack(idCardPack, username) - Exception", ex);
if (ex.InnerException != null)
{
log.Error("ShopAdministration - BuyPack(idCardPack, username) - Exception (inner)", ex.InnerException);
}
Debugger.Break();
throw ex;
}
return(result);
}
