public async Task <double> GetTotalAmountAfterDiscountsAsync(CartDTO cart)
{
double totalAmountWithoutDiscounts = 0;
IList <CartDetailDTO> cartDetailDTOs = await GetCartDetailsAsync(cart.CartId);
foreach (CartDetailDTO item in cartDetailDTOs)
{
totalAmountWithoutDiscounts += (await _productEFService.GetProductAsync(item.ProductId)).Price * item.ProductQuantity;
}
return(totalAmountWithoutDiscounts - (await GetCampaignDiscountAsync(cart)) - (await GetCouponDiscountAsync(cart)));
}
public async Task <double> CalculateDeliveryCostAndCountAsync(int cartId, double costPerDelivery, double costPerProduct, double fixedCost)
{
Cart cart = new Cart(_cartEFService, _mapper, _productEFService, _categoryEFService);
IList <CartDetailDTO> cartDetailDTOs = await cart.GetCartDetailsAsync(cartId);
int numberOfDeliveries = cartDetailDTOs.Select(async cd => (await _productEFService.GetProductAsync(cd.ProductId)).CategoryId).Distinct().Count();
double deliveryCost = (costPerDelivery * numberOfDeliveries) + (costPerProduct * cartDetailDTOs.Select(cd => cd.ProductId).Distinct().Count()) + fixedCost;
deliveryCost = Math.Round(deliveryCost, 2);
DeliveryDTO deliveryDTO = new DeliveryDTO()
{
CartId = cartId,
Cost = deliveryCost
};
await _deliveryEFService.AddDeliveryAsync(_mapper.Map <DeliveryModel>(deliveryDTO));
return(deliveryCost);
}
public async Task <ProductDTO> GetProductAsync(int productId)
{
return(_mapper.Map <ProductDTO>(await _productEFService.GetProductAsync(productId)));
}
