public void Open(Bank bank, AccountType accountType, decimal sum)
{
Account newAccount = accountType switch
{
AccountType.Ordinary => new DemandAccount(sum, 1),
AccountType.Deposit => new DepositAccount(sum, 40),
_ => throw new ArgumentOutOfRangeException(nameof(accountType))
};
_accountStorage.Add(bank, newAccount);
_output.OutputMessage(newAccount.OpenText);
}
}