private void OnLineItemChange(LineItemChangeType type, CartLineItem item)
{
_IsSaved = false;
if (OnChange != null)
{
OnChange(type, item);
}
}
/// <summary>
/// Deletes one <see ref="CartLineItem">Line Item </see> based on a variant id. If a line item was deleted, <c>true</c>
/// will be returned. If no line items were deleted, <c>false</c> will be returned.
/// </summary>
/// <param name="variantId">variant id used to delete a line item</param>
/// \code
/// // Example that deletes a line item based on variantId
/// Cart cart = ShopifyBuy.Client().Cart();
///
/// Debug.Log("Did delete? " + cart.LineItems.Delete(variantId));
/// \endcode
public bool Delete(string variantId)
{
int idxToDelete = LineItems.FindIndex(lineItem => lineItem.VariantId == variantId);
if (idxToDelete == -1)
{
return(false);
}
else
{
CartLineItem lineItemRemoved = LineItems[idxToDelete];
LineItems.RemoveAt(idxToDelete);
if (OnChange != null)
{
OnChange(LineItemChangeType.Remove, lineItemRemoved);
}
return(true);
}
}
/// <summary>
/// Adds or updates a line item using a <see ref="ProductVariant">ProductVariant </see>.
/// </summary>
/// <param name="variant"><see ref="ProductVariant">ProductVariant </see> whose id will be used to create or update a line item</param>
/// <param name="quantity">the number of items you'd like to order for variantId</param>
/// <param name="customAttributes">can be used to define extra information for this line item</param>
/// \code
/// // Example that updates the quantity of items to be purchased to 3.
/// // If no line item exists for `variantId`, then a new line item is created
/// Cart cart = ShopifyBuy.Client().Cart();
///
/// cart.LineItems.AddOrUpdate(variant, 3);
/// \endcode
public void AddOrUpdate(ProductVariant variant, long?quantity = null, Dictionary <string, string> customAttributes = null)
{
CartLineItem lineItem = Get(variant.id());
if (lineItem != null)
{
if (quantity != null && lineItem.Quantity != (long)quantity)
{
lineItem.Quantity = (long)quantity;
}
if (customAttributes != null)
{
lineItem.CustomAttributes = customAttributes;
}
}
else
{
if (quantity == null)
{
quantity = 1;
}
lineItem = new CartLineItem(
variant: variant,
onChange: OnLineItemChange,
quantity: (long)quantity,
customAttributes: customAttributes
);
LineItems.Add(lineItem);
if (OnChange != null)
{
OnChange(LineItemChangeType.Add, lineItem);
}
}
}