public ShoppingCartService(IProductService productService, IDeliveryCostCalculatorService deliveryCostCalculatorService, ICampaignService campaignService)
{
ProductService = productService;
DeliveryCostCalculatorService = deliveryCostCalculatorService;
CampaignService = campaignService;
cart = new Models.ShoppingCart();
}
public double CalculateDeliveryCost(Models.ShoppingCart cart)
{
if (!cart.Items.Any())
{
return(0);
}
var numberOfDeliveries = cart.Items.Select(i => i.Product.CategoryTitle).Distinct().Count();
var numberOfProducts = cart.Items.Select(i => i.Product.Title).Distinct().Count();
return((numberOfDeliveries * CostPerDelivery) + (numberOfProducts * CostPerProduct) + FixedCost);
}