public ActionResult Register(RegisterViewModel viewModel)
{
using (CryptoWalletDBContext ctx = new CryptoWalletDBContext())
{
CryptoWalletDB.Domain.User user = new CryptoWalletDB.Domain.User();
if( ctx.Users.AsNoTracking().FirstOrDefault(u => u.Email == viewModel.Email) ==null)
{
ModelState.AddModelError("", "The email already exist!");
if (ctx.Users.AsNoTracking().FirstOrDefault(u => u.Email == viewModel.Name) == null)
{
ModelState.AddModelError("", "The name already exist!");
}
}
return View(viewModel);
}
user.Email = viewModel.Email;
user.Name = viewModel.Name;
user.Password = viewModel.Password;
ctx.Users.Add(user);
ctx.SaveChanges();
}
public ActionResult Deposit(DepositViewModel viewModel)
{
if (ModelState.IsValid)
{
using (CryptoWalletDBContext ctx = new CryptoWalletDBContext())
{
User currentUser = ctx.Users.AsNoTracking().FirstOrDefault(u => u.Email == User.Identity.Name);
UserBankAccount eurAccount = ctx.UsersBankAccounts.FirstOrDefault(u => u.Currency == "EUR" && u.UserId == currentUser.UserId);
if (eurAccount == null)
{
eurAccount = new UserBankAccount
{
Currency = "EUR",
UserId = currentUser.UserId,
Amount = 0
};
ctx.UsersBankAccounts.Add(eurAccount);
}
eurAccount.Amount += viewModel.Amount;
ctx.SaveChanges();
UserTransaction transaction = new UserTransaction
{
Amount = viewModel.Amount,
FromAccountId = eurAccount.AccountId,
ToAccountId = eurAccount.AccountId,
TransactionDate = DateTime.Now
};
ctx.UsersTransactions.Add(transaction);
ctx.SaveChanges();
}
return(RedirectToAction("Index"));
}
return(View(viewModel));
}
public ActionResult Convert(ConvertViewModel viewModel)
{
if (ModelState.IsValid)
{
using (CryptoWalletDBContext ctx = new CryptoWalletDBContext())
{
User CurrentUser = ctx.Users.AsNoTracking().FirstOrDefault(u => u.Email == User.Identity.Name);
UserBankAccount toAccount = ctx.UsersBankAccounts.FirstOrDefault(u => u.Currency == viewModel.IntoCurrency && u.UserId == CurrentUser.UserId);
UserBankAccount fromAccount = ctx.UsersBankAccounts.FirstOrDefault(u => u.Currency == viewModel.Currency && u.UserId == CurrentUser.UserId);
if (toAccount.Currency == fromAccount.Currency)
{
ModelState.AddModelError("", "Choose other currency!");
SetupConvertViewModel(viewModel);
return(View(viewModel));
}
if (fromAccount.Amount < viewModel.Amount)
{
ModelState.AddModelError("", "Insufficient funds!");
SetupConvertViewModel(viewModel);
return(View(viewModel));
}
ExchangeService cryptoExchange = new ExchangeService();
List <CurrencyRate> currencyRates = cryptoExchange.GetConversionRate(findCurrency(viewModel.Currency), new Currency[] { Currency.USD, Currency.GBP, Currency.BTC, Currency.XRP, Currency.EUR });
decimal rate = currencyRates.FirstOrDefault(u => u.Currency.ToString() == viewModel.IntoCurrency).Rate;
fromAccount.Amount -= viewModel.Amount;
toAccount.Amount += (viewModel.Amount * rate);
UserTransaction transaction = new UserTransaction
{
Amount = viewModel.Amount,
ToAccountId = toAccount.AccountId,
FromAccountId = fromAccount.AccountId,
TransactionDate = DateTime.Now,
TransactionRate = (decimal)rate,
ToAccount = toAccount,
FromAccount = fromAccount
};
ctx.UsersTransactions.Add(transaction);
ctx.SaveChanges();
return(RedirectToAction("Index"));
}
}
SetupConvertViewModel(viewModel);
return(View(viewModel));
}
public ActionResult Send(SendViewModel viewModel)
{
if (ModelState.IsValid)
{
using (CryptoWalletDBContext ctx = new CryptoWalletDBContext())
{
User fromUser = ctx.Users.AsNoTracking().FirstOrDefault(u => u.Email == User.Identity.Name);
User toUser = ctx.Users.AsNoTracking().FirstOrDefault(u => u.Email == viewModel.ToUserEmail);
if (toUser != null)
{
if (fromUser.UserId == toUser.UserId)
{
ModelState.AddModelError("", "You can not send yourself!");
SetupSendViewModel(viewModel);
return(View(viewModel));
}
UserBankAccount toAccount = ctx.UsersBankAccounts.FirstOrDefault(u => u.Currency == viewModel.Currency && u.UserId == toUser.UserId);
UserBankAccount fromAccount = ctx.UsersBankAccounts.FirstOrDefault(u => u.Currency == viewModel.Currency && u.UserId == fromUser.UserId);
if (toAccount == null)
{
ModelState.AddModelError("", "The receiver does not have an account!");
SetupSendViewModel(viewModel);
return(View(viewModel));
}
if (fromAccount.Amount > viewModel.Amount)
{
fromAccount.Amount -= viewModel.Amount;
toAccount.Amount += viewModel.Amount;
UserTransaction transaction = new UserTransaction
{
Amount = viewModel.Amount,
ToAccountId = toAccount.AccountId,
FromAccountId = fromAccount.AccountId,
TransactionDate = DateTime.Now,
TransactionRate = 1,
ToAccount = toAccount,
FromAccount = fromAccount
};
ctx.UsersTransactions.Add(transaction);
ctx.SaveChanges();
return(RedirectToAction("Index"));
}
else
{
ModelState.AddModelError("", "Insufficient funds!");
SetupSendViewModel(viewModel);
return(View(viewModel));
}
}
else
{
ModelState.AddModelError("", "Invalid friend's email!");
SetupSendViewModel(viewModel);
return(View(viewModel));
}
}
}
SetupSendViewModel(viewModel);
return(View(viewModel));
}