public Customer AddCustomer(string nickname, DateTime dateOfBirth)
{
if (!_emptyNicknameValidator.Validate(nickname))
return null;
if (!_duplicatedNicknameValidator.Validate(nickname, _nicknames))
return null;
var newCustomer = new Customer(nickname, dateOfBirth);
_customers.Add(newCustomer);
return newCustomer;
}
public Customer AddCustomer(string nickname, DateTime dateOfBirth, string email)
{
if (!_emptyNicknameValidator.Validate(nickname))
return null;
if (!_duplicatedNicknameValidator.Validate(nickname, _nicknames))
return null;
var newCustomer = new Customer(nickname, dateOfBirth, email, SystemTime.Today());
//var newCustomer = new Customer(nickname, dateOfBirth, email, _systemClock.Today(), _systemClock);
_customers.Add(newCustomer);
_messageGateway.Send(newCustomer.Email, string.Format("Dear {0}, welcome to the bank.", newCustomer.Nickname));
return newCustomer;
}