public static UserCollection InitializeUserCollection()
{
UserCollection usercollection = new UserCollection();
AUser AdminUser = new AUser("guy", "library", true);
AUser CustomerUser = new AUser("sela", "sela123", false);
AUser CustomerUser2 = new AUser("user", "Aa123456", false);
usercollection.Users.Add(AdminUser);
usercollection.Users.Add(CustomerUser);
return(usercollection);
}
public async void UserBorrowItem(AbstractItem item, AUser user)
{
try
{
if (item.IsBorrowed)
{
throw new InvalidOperationException("Item is already borrowed! try a different one.");
}
user.Borrowed.Add(item);
item.IsBorrowed = true;
}
catch (InvalidOperationException)
{
await new MessageDialog("Item is already borrowed! try a different one.").ShowAsync();
}
}
public async void UserReturnItem(AbstractItem item, AUser user)
{
try
{
if (!item.IsBorrowed)
{
throw new InvalidOperationException("Item is already returned and in library!");
}
else
{
user.Borrowed.Remove(item);
item.IsBorrowed = false;
}
}
catch (InvalidOperationException)
{
await new MessageDialog("Item is already returned and in library!").ShowAsync();
}
}
public AUser VerifyUser(string username, string password)
{
AUser loginUser = FindUser(username);
return(loginUser);
}
public void AddUser(AUser user)
{
Users.Add(user);
}