public string MakeSelection(Product product)
{
string response = "";
//Would ideally be something nicer than name comparison. Id etc
var vendingProduct = Products.First(a => a.Name == product.Name);
if (vendingProduct.Stock > 1)
{
if (Tender.Sum(a => a.Value) >= product.Price)
{
//this name search is being done twice and is horrible. would change
//along with removing stock from product etc
_productHandler.SelectProduct(Products.First(a => a.Name == product.Name));
var change = _coinHandler.MakeChange(product.Price, Tender);
response = "THANK YOU";
var amountCharged = RemoveCoins(change, Tender);
ChangeInMachine.AddRange(amountCharged);
_coinHandler.ReturnCoins(change);
Tender = new List <Coin>();
}
else
{
response = product.Price.ToString();
}
}
else
{
if (ButtonCounter == 0)
{
ButtonCounter += 1;
return("SOLD OUT");
}
else
{
ButtonCounter = 0;
var remaining = Tender.Sum(a => a.Value);
if (remaining > 0)
{
return(remaining.ToString());
}
else
{
return("INSERT COIN");
}
}
}
return(response);
}