/// <summary>
/// Deletes the basket and all elements inside the basket.
/// Returns BasketDeleteResult.NotFound In case the basket with the passed Id is non existent
/// </summary>
/// <param name="basketId">The basket identifier.</param>
/// <returns>BasketDeleteResult.</returns>
public BasketDeleteResult DeleteBasketAndAllElements(int basketId)
{
var basket = Baskets.FirstOrDefault(i => i.BasketId == basketId);
if (basket == null)
{
return(BasketDeleteResult.NotFound);
}
else
{
var products = BasketProducts.FirstOrDefault(i => i.BasketId == basketId);
if (products != null)
{
BasketProducts.RemoveRange(products);
}
Baskets.Remove(basket);
SaveChanges();
}
return(BasketDeleteResult.Ok);
}
/// <summary>
/// Adds the passed product into the basket with the specified ID.
/// If the basket with tha ID is null a new basket it will be automatically created before adding the item
/// </summary>
/// <param name="basketItem">The basket item.</param>
/// <param name="basketId">The basket identifier.</param>
public void AddProduct(BasketItem basketItem, int basketId)
{
var basket = Baskets.FirstOrDefault(i => i.BasketId == basketId);
if (basket == null)
{
CreateNewBasket(basketId);
}
basketItem.BasketId = basketId;
BasketItem existingItem = BasketProducts.FirstOrDefault(i => i.ProductId == basketItem.ProductId && i.BasketId == basketId);
if (existingItem == null)
{
BasketProducts.Add(basketItem);
}
else
{
existingItem.Quantity += basketItem.Quantity;
}
UpdateBasketProperty(basketItem, basketId);
UpdateProductStockQuantity(basketItem, null);
SaveChanges();
}
/// <summary>
/// Modifies the quantity of the passed basket item.
/// </summary>
/// <param name="id">The identifier of the item you want to modify.</param>
/// <param name="basketItem">The new basket item.</param>
/// <returns>ProductInjuryResult.</returns>
public ProductInjuryResult ModifyCartItem(int id, BasketItem basketItem)
{
BasketItem existingItem = BasketProducts.FirstOrDefault(i => i.Id == id);
if (existingItem == null)
{
return(ProductInjuryResult.NotFound);
}
var newQuantity = basketItem.Quantity - existingItem.Quantity;
if (newQuantity > 0)
{
var result = CheckProduct(basketItem.ProductId, newQuantity);
if (result != ProductInjuryResult.Ok)
{
return(result);
}
}
existingItem.Quantity = basketItem.Quantity;
UpdateProductStockQuantity(basketItem, newQuantity);
SaveChanges();
return(ProductInjuryResult.Ok);
}