public Result Execute(RefillBalanceInput input)
{
Result <MoneyToCharge> moneyToCharge = MoneyToCharge.Create(input.MoneyAmount);
Result <Customer> customer = _customerRepository.Get(input.CustomerId).ToResult("Customer doesn't exist.");
return(Result.Combine(moneyToCharge, customer)
.OnSuccess(() => customer.Value.AddBalance(moneyToCharge.Value.Value).ToResult("For increment the current balance the value at increment must be greater than 100"))
.OnSuccess(() => _paymentGateway.Charge(customer.Value.BillingInfo, moneyToCharge.Value.Value))
.OnSuccess(() => _uow.Commit().OnFailure(() => _paymentGateway.Rollback()))
.OnBoth(() => _log.Info("RefillBalanceCommand has been executed.")));
}