public void Can_Get_Rates_From_Nbrb()
{
var client = new NBRBServiceClient();
var rates = client.GetLatestRates();
client.Dispose();
Assert.IsNotNull(rates);
Assert.IsTrue(rates.Count > 0);
}
public void Can_Get_Rates_From_Nbrb()
{
var client = new NBRBServiceClient();
var rates = client.GetLatestRates();
client.Dispose();
Assert.IsNotNull(rates);
Assert.IsTrue(rates.Count > 0);
}
public void UpdateRates()
{
var nationalBankClient = new NBRBServiceClient();
try
{
var now = DateTime.UtcNow;
var currencies = _deps.Currencies.FindAll();
var nationalCurrency = currencies.First(x => x.ISOName == _settings.NationalCurrency);
var foreignCurrencies = currencies.Except(new[] {nationalCurrency}).ToList();
var nationalBankRates = nationalBankClient.GetLatestRates()
.Where(x => foreignCurrencies.Any(f => f.ISOName == x.Conversion.To))
.ToList();
var commercialRates = nationalBankRates
.Select(x => _deps.ExchangeRateCalculator.CalculateFromNationalBankRate(x.Conversion.To, x.Rate, now))
.ToDictionary(x => x.Foreign.ISOName, x => x);
var foreignCurrenciesIds = foreignCurrencies.Select(x => x.ISOName).ToList();
var pairs = from id1 in foreignCurrenciesIds
from id2 in foreignCurrenciesIds
select new {id1, id2};
var crossConversions = pairs.Where(x => x.id1 != x.id2)
.Select(x => new CurrencyConversion(x.id1, x.id2))
.OrderBy(x => _settings.GetPriority(x.From))
.DistinctBy(x => x.ExchangeRateKey)
.ToList();
var crossRates = crossConversions
.Select(x => _deps.ExchangeRateCalculator.CalculateCrossRate(commercialRates[x.From],commercialRates[x.To], now))
.ToList();
var allRates = commercialRates.Values.Concat(crossRates).ToList();
allRates.ForEach(_deps.ExchangeRates.Save);
Commit();
}
catch (Exception ex)
{
throw new ServiceException("Can't update currency rates.", ex);
}
finally
{
nationalBankClient.Dispose();
}
}
