public Account(ICustomer customer, AccountType type = AccountType.Normal, float balance = 0.0F, DateTime closeDate = default(DateTime), IInterestRate state = null, float allowedDebit = 250.00F)
{
AccountId = customer.NewAccountId();
CustomerId = customer.CustomerId;
Balance = balance;
OpenDate = DateTime.Now;
CloseDate = closeDate;
History = new List<IOperationHistory>();
AllowedDebit = allowedDebit;
Debits = 0.0F;
Type = type;
State = state ?? new Normal(this);
State.Check();
}