public virtual void AddItem(Shop shop, Product product, IEnumerable<Variation> variations)
{
ShoppingBasket shoppingBasket = GetCurrentShoppingBasketInternal(shop, true);
// If card is already in basket, just increment quantity, otherwise create a new item.
ShoppingBasketItem item = shoppingBasket.GetChildren<ShoppingBasketItem>().SingleOrDefault(i => i.Product == product && ((variations == null && i.Variations == null) || EnumerableUtility.Equals(i.Variations, variations)));
if (item == null)
{
VariationPermutation variationPermutation = null;
if (variations != null && variations.Any())
{
variationPermutation = new VariationPermutation();
foreach (Variation variation in variations)
variationPermutation.Variations.Add(variation);
}
item = new ShoppingBasketItem { Product = product, VariationPermutation = variationPermutation, Quantity = 1 };
item.AddTo(shoppingBasket);
}
else
{
item.Quantity += 1;
}
_persister.Save(shoppingBasket);
}
private static IEnumerable<IEnumerable<Variation>> GetPermutations(Product product)
{
VariationSetContainer variationSets = product.CurrentCategory.Shop.VariationsSet;
if (variationSets == null)
return null;
List<List<Variation>> inputVariationSets = new List<List<Variation>>();
foreach (VariationSet set in variationSets.Sets)
{
List<Variation> inputVariations = new List<Variation>();
foreach (Variation variation in set.Variations)
inputVariations.Add(variation);
inputVariationSets.Add(inputVariations);
}
return CartesianProductUtility.Combinations(inputVariationSets[0], inputVariationSets[1]);
}
private static bool HasPermutation(Product product, IEnumerable<Variation> permutation)
{
return product.VariationConfigurations.Any(vc => vc.Available
&& EnumerableUtility.Equals(vc.Permutation.Variations.Cast<Variation>(), permutation));
}
public virtual void UpdateQuantity(Shop shop, Product product, VariationPermutation variationPermutation, int newQuantity)
{
if (newQuantity < 0)
throw new ArgumentOutOfRangeException("newQuantity", "Quantity must be greater than or equal to 0.");
ShoppingBasket shoppingBasket = GetCurrentShoppingBasketInternal(shop, true);
ShoppingBasketItem item = shoppingBasket.GetChildren<ShoppingBasketItem>().SingleOrDefault(i => i.Product == product && i.VariationPermutation == variationPermutation);
if (item == null)
return;
if (newQuantity == 0)
{
shoppingBasket.Children.Remove(item);
_persister.Delete(item);
}
else
item.Quantity = newQuantity;
_persister.Save(shoppingBasket);
}
public virtual void RemoveItem(Shop shop, Product product, VariationPermutation variationPermutation)
{
UpdateQuantity(shop, product, variationPermutation, 0);
}
public virtual bool IsValidVariationPermutation(Product product, IEnumerable<Variation> variations)
{
if ((variations == null || !variations.Any()) && (product.VariationConfigurations == null || !product.VariationConfigurations.Any()))
return true;
return product.VariationConfigurations.Any(vc => vc.Available
&& EnumerableUtility.EqualsIgnoringOrder(vc.Permutation.Variations.Cast<Variation>(), variations));
}