public async Task <GetExchangeRatesQueryResult> Handle(GetExchangeRatesQuery request, CancellationToken cancellationToken)
{
var eurRate = await _currencyExchangeAdapter.GetExchangeRate(AccountCurrency.UAH, AccountCurrency.EUR);
var usdRate = await _currencyExchangeAdapter.GetExchangeRate(AccountCurrency.UAH, AccountCurrency.USD);
return(new GetExchangeRatesQueryResult
{
Rates = new CurrencyRateDto[]
{
new CurrencyRateDto
{
Currency = AccountCurrency.EUR.ToString(),
Rate = eurRate.Value
},
new CurrencyRateDto
{
Currency = AccountCurrency.USD.ToString(),
Rate = usdRate.Value
}
}
});
}
public async Task <BuyCurrencyResult> Handle(BuyCurrencyCommand request, CancellationToken cancellationToken)
{
var baseAccount = await _accountRepository.FindAsync(request.AccountId);
var currencyAccount = await _accountRepository.FindAsync(request.CurrencyAccountId);
var exchangeBaseAccount = SystemAccount.FromCurrency(baseAccount.Currency);
var exchangeCurrencyAccount = SystemAccount.FromCurrency(currencyAccount.Currency);
var exchangeRate = await _currencyExchangeAdapter.GetExchangeRate(currencyAccount.Currency, baseAccount.Currency);
var baseAmount = request.Amount * exchangeRate;
var debitBaseAccount = baseAccount.Transfer(exchangeBaseAccount, baseAmount.Value, $"Buy {request.Amount} {currencyAccount.Currency.ToString()} operation");
var creditCurrencyAccount = exchangeCurrencyAccount.Transfer(currencyAccount, request.Amount, $"Buy {request.Amount} {currencyAccount.Currency.ToString()} operation");
await _accountTransactionRepository.SaveAsync(debitBaseAccount);
await _accountTransactionRepository.SaveAsync(creditCurrencyAccount);
return(new BuyCurrencyResult());
}