public bool CheckCapabilities(string currency, CurrencyCapabilities capabilitiesToCheck)
{
if (null == currency)
{
throw new ArgumentNullException(nameof(currency));
}
if (CurrencyCapabilities.None == capabilitiesToCheck)
{
return(true);
}
if (!_currencyRegister.TryGetValue(currency, out var capabilities))
{
Logger.ErrorFormat("Currency {0} not supported.", currency);
return(false);
}
foreach (var flag in GetFlags(capabilitiesToCheck))
{
if (!capabilities.HasFlag(flag))
{
return(false);
}
}
return(true);
}
private static IEnumerable <CurrencyCapabilities> GetFlags(CurrencyCapabilities flags)
{
foreach (CurrencyCapabilities singleFlag in Enum.GetValues(typeof(CurrencyCapabilities)))
{
if (flags.HasFlag(singleFlag))
{
yield return(singleFlag);
}
}
}
public IEnumerable <string> SelectCurrencies(CurrencyCapabilities currencyCapabilities)
{
var currencies = new List <string>();
foreach (string currency in _currencyRegister.Keys)
{
if (CurrencyCapabilities.None != currencyCapabilities)
{
if (!CheckCapabilities(currency, currencyCapabilities))
{
continue;
}
}
currencies.Add(currency);
}
return(currencies);
}
public static List <AccountDropDownListItemTemplate> BuildCurrencyDropDownListItemTemplates(
IUnityContainer container, CurrencyCapabilities currencyCapabilities)
{
if (null == container)
{
throw new ArgumentNullException(nameof(container));
}
var currencyService = container.Resolve <ICurrencyService>();
var currencies = currencyService.SelectCurrencies(currencyCapabilities);
var result = new List <AccountDropDownListItemTemplate>();
foreach (var currency in currencies)
{
var currencyWithPrefix = currencyService.AddPrefix(currency);
result.Add(new AccountDropDownListItemTemplate(currencyWithPrefix));
}
return(result);
}
