public Contract(ISubscriber subscriber, TariffType type, DateTime dateOfConclusion)
{
Subscriber = subscriber;
DateOfConclusion = dateOfConclusion;
Number = Rnd.Next(100, 999);
Tariff = new TariffPlane(type);
_lastTariffUpdateDate = DateTime.Now.Date;
}
public bool ChangeTariff(TariffType tariffType, DateTime lastDate)
{
if (DateTime.Now.AddMonths(-1).Date < lastDate)
{
return(false);
}
_lastTariffUpdateDate = DateTime.Now.Date;
Tariff = new TariffPlane(tariffType);
return(true);
}