public void Transfer(BankAccount fromAccount,
BankAccount toAccount,
decimal transferAmount,
Currency transferCurrency)
{
if (transferAmount <= 0)
{
throw new ApplicationException("transfer amount must be positive");
}
else if (transferAmount == 0)
{
throw new ApplicationException("invalid transfer amount");
}
else if (fromAccount.IsFrozen || toAccount.IsFrozen)
{
throw new ApplicationException("account is frozen");
}
if (fromAccount.Amount < transferAmount)
{
throw new ApplicationException("insufficient funds");
}
if (fromAccount.Currency == toAccount.Currency)
{
fromAccount.Amount -= transferAmount;
toAccount.Amount += transferAmount;
}
else
{
var fromAmount = fromAccount.Currency == transferCurrency
? transferAmount
: _currencyService
.ConvertByAlex(transferCurrency, transferAmount, fromAccount.Currency);
var toAmount = toAccount.Currency == transferCurrency
? transferAmount
: _currencyService
.ConvertByAlex(transferCurrency, transferAmount, toAccount.Currency);
fromAccount.Amount -= fromAmount;
toAccount.Amount += toAmount;
}
var transaction = CreateTransaction(transferAmount, transferCurrency, fromAccount, toAccount);
fromAccount.OutcomingTransactions.Add(transaction);
toAccount.IncomingTransactions.Add(transaction);
_transactionBankRepository.Save(transaction);
_bankAccountRepository.Save(fromAccount);
_bankAccountRepository.Save(toAccount);
}
public IActionResult ChangeCurrency(string accountNumber, string amount, string currency)
{
var account = _accountRepository.Get(accountNumber);
var currencyFrom = (Currency)Enum.Parse(typeof(Currency), currency);
//var money = _currencyService.ConvertByAlex(currencyFrom,
var money = _currencyService.ConvertByAlex((Currency)Enum.Parse(typeof(Currency), currency),
Convert.ToDecimal(amount), account.Currency);
return(Json(new
{
money = money.ToString(),
currency = AttributeService.GetDisplayValue(account.Currency)
}));
}
public string GetJsonAsTransferResult(long fromAccountId, string toAccountNumber, decimal transferAmount)
{
var fromAccount = _bankAccountRepository?.Get(fromAccountId);
var toAccount = _bankAccountRepository?.Get(toAccountNumber);
if (fromAccount == null || toAccount == null || fromAccount == toAccount)
{
return(JsonConvert.SerializeObject("wrong account"));
}
else if (transferAmount > fromAccount.Amount)
{
return(JsonConvert.SerializeObject("wrong amount"));
}
_transactionService.Transfer(fromAccount, toAccount, transferAmount);
var newAmount = fromAccount.Currency == toAccount.Currency
? transferAmount
:_currencyService
.ConvertByAlex(fromAccount.Currency, transferAmount, toAccount.Currency);
return(JsonConvert.SerializeObject(newAmount));
}
