double? EenCalculate()
{
var tariffs = new TariffsManager().GetCurrentTariff(new ServiceManager().GetServiceId("ElectricPower"));
int dif;
if (!int.TryParse(DifferenceEEn.Text, out dif))
return null;
if (dif <= 100)
{
return dif * tariffs.Price;
}
return (dif - 100) * tariffs.Overexpenditure + 100 * tariffs.Price;
}
double? HovCalculate()
{
int difG, difH;
var tariff = new TariffsManager().GetCurrentTariff(new ServiceManager().GetServiceId("ColdWater"));
if (!int.TryParse(DifferenceGov.Text, out difG) ||
!int.TryParse(DifferenceHov.Text, out difH))
return null;
return (difG + difH) * tariff.Price;
}
double? KanCalculate()
{
int difG, difK;
var tariff = new TariffsManager().GetCurrentTariff(new ServiceManager().GetServiceId("WateDrain"));
if (!int.TryParse(DifferenceGov.Text, out difG) ||
!int.TryParse(DifferenceKan.Text, out difK))
return null;
return (difG + difK) * tariff.Price;
}
double? GovCalculate()
{
int dif;
var tariff = new TariffsManager().GetCurrentTariff(new ServiceManager().GetServiceId("HotWater"));
if (!int.TryParse(DifferenceGov.Text, out dif))
return null;
return dif * tariff.Price;
}