public static BillingSystem Get()
{
if (_bs == null)
{
_bs = new BillingSystem();
}
return(_bs);
}
public AccountCredit(Terminal terminal, string firstName, string secondName)
{
Terminal = terminal;
FirstName = firstName;
SecondName = secondName;
Calls = new List <CallInfo>();
BillingSystem.Get().ChangeDateEvent += CheckBalance;
BlockForDebtEvent += Terminal.TerminalBlock;
UnBlockEvent += Terminal.TerminalUnBlock;
}
private void CheckBalance(object o, EventArgs e)
{
if (BillingSystem.Get().CurrentDate.Day == 1)
{
DateTime LastMonth = BillingSystem.Get().CurrentDate.AddMonths(-1);
LastMonthDebt = SumForPeriod(new DateTime(LastMonth.Year, LastMonth.Month, 1), new DateTime(LastMonth.Year, LastMonth.Month, BillingSystem.Get().CurrentDate.AddDays(-1).Day));
}
if (BillingSystem.Get().CurrentDate.Day == 25 && LastMonthDebt > 0)
{
BlockForDebtEvent?.Invoke(this, e);
}
}
public void SetTariff(double pricePerSecond, int freeMinutes)
{
if ((BillingSystem.Get().CurrentDate - DateSignTariff).Days > 30)
{
PricePerSecond = pricePerSecond;
FreeMinutes = freeMinutes;
DateSignTariff = BillingSystem.Get().CurrentDate;
}
else
{
Console.WriteLine("You have already changed tarif this month!");
}
}
