public void AddProduct(Guid productId, int quantity)
{
if (_status != Enums.ShoppingCartStatus.ShoppingCart)
{
throw new Exception("Shopping cart checkedout. Can not add product");
}
if (quantity <= 0)
{
throw new Exception("You must input Quantity of product");
}
var id = Guid.Parse(Id);
Product product;
using (var db = new CoreEcommerceDbContext())
{
product = db.Products.SingleOrDefault(i => i.Id == productId);
}
if (product == null)
{
throw new Exception("Your selected product was not exist");
}
long total = 0;
int tempQuantity = 0;
var shoppingCartItems = _items.Where(i => i.ProductId == productId).ToList();
if (shoppingCartItems.Count > 0)
{
total = shoppingCartItems.Sum(i => i.Quantity * i.UnitPrice);
tempQuantity = shoppingCartItems.Sum(i => i.Quantity);
}
tempQuantity = tempQuantity + quantity;
var pp = ProductPromotionServices.CalculateDiscount(productId, tempQuantity);
long productDiscount = 0;
Guid productPromotionId = Guid.Empty;
if (pp != null)
{
productDiscount = pp.DiscountValue;
productPromotionId = pp.Id;
}
else
{
productDiscount = 0;
}
total = total + (quantity * product.Price) - productDiscount;
ApplyChange(new ShoppingCartAddedProduct(id, productId, tempQuantity, product.Price, total, DateTime.Now));
ApplyChange(new ShoppingCartItemAppliedProductPromotion(id, productId, productPromotionId, quantity, productDiscount));
}
private static void PreCalculateShoppingCart(Guid shoppingCartId, Guid productId, int productQuantity)
{
var hubContext = GlobalHost.ConnectionManager.GetHubContext <SystemNotificationHub>();
var msg = string.Empty;
var pp = ProductPromotionServices.CalculateDiscount(productId, productQuantity);
var ooDiscount = OrderPromotionServices.CalculateForDiscount(shoppingCartId);
var ooShipping = OrderPromotionServices.CalculateForShipping(shoppingCartId);
using (var db = new CoreEcommerceDbContext())
{
if (pp != null)
{
msg += db.ContentLanguages.GetValue(pp.Id, "Description");
}
if (ooDiscount != null)
{
msg += "<br>" + db.ContentLanguages.GetValue(ooDiscount.Id, "Description");
}
if (ooShipping != null)
{
msg += "<br>" + db.ContentLanguages.GetValue(ooShipping.Id, "Description");
}
}
if (!string.IsNullOrEmpty(msg))
{
hubContext.Clients.All.shoppingCartMessage(new NotificationMessage()
{
DataType = "ShoppingCart",
DataJson = JsonConvert.SerializeObject(new
{
Id = shoppingCartId,
ProductId = productId,
ActionType = "PreCalculateShoppingCart",
Message = msg
})
});
}
hubContext.Clients.All.shoppingCartMessage(new NotificationMessage()
{
DataType = "ShoppingCart",
DataJson = JsonConvert.SerializeObject(new
{
Id = shoppingCartId,
ActionType = "RefreshShoppingCart",
Message = msg
})
});
}
