private void InitEuroService()
{
var dateRateCurrencies = database.DateRateCurrencyRepository.GetWhere(d => d.MeasureDate == DateTime.Today).ToList();
if (dateRateCurrencies.Any())
{
foreach (DateRateCurrency dateRateCurrency in dateRateCurrencies)
{
EuroCurrencyRates.Add(new CurrencyRate(dateRateCurrency.Currency.Name, dateRateCurrency.Rate));
}
}
else
{
var currencies = CurrencyConverterService.GetCurrencyTags();
float rate;
string currencyName;
for (int i = 0; i < 33; i++)
{
currencyName = currencies[i];
rate = CSS.GetExchangeRate("eur", currencyName);
EuroCurrencyRates.Add(new CurrencyRate(currencyName, rate));
dateRateCurrencies.Add(new DateRateCurrency(DateTime.Today, rate, i + 1));
}
database.DateRateCurrencyRepository.AddRange(dateRateCurrencies);
database.Complete();
}
}
public List <CurrencyRate> GetCurrencyRates(string fromCurrency, float amount)
{
List <CurrencyRate> currencyRates = new List <CurrencyRate>();
float fromRate = EuroCurrencyRates.Find(cr => cr.Name == fromCurrency).Rate;
if (fromRate == 0)
{
return(null);
}
string toCurrency;
float toRate;
for (int i = 0; i < 33; i++)
{
toCurrency = EuroCurrencyRates[i].Name;
toRate = EuroCurrencyRates.Find(cr => cr.Name == toCurrency).Rate;
currencyRates.Add(new CurrencyRate(toCurrency, toRate / fromRate * amount));
}
return(currencyRates);
}
public float GetExchangeRateFromDatabase(string from, string to, float amount = 1)
{
if (to == null)
{
return(0);
}
// Convert Euro to Euro
if (from.ToLower() == to.ToLower())
{
return(amount);
}
try
{
// First Get the exchange rate of both currencies in euro
float fromRate = EuroCurrencyRates.Find(cr => cr.Name == from).Rate;
float toRate = EuroCurrencyRates.Find(cr => cr.Name == to).Rate;
// Convert Between Euro to Other Currency
if (from.ToLower() == "eur")
{
return(amount * toRate);
}
else if (to.ToLower() == "eur")
{
return(amount / fromRate);
}
else
{
// Calculate non EURO exchange rates From A to B
return((amount * toRate) / fromRate);
}
}
catch { return(0); }
}
private float calculateRate(string currency) => EuroCurrencyRates.Find(cr => cr.Name == currency).Rate;
