/// <summary>
/// Gets a list of all products
/// </summary>
/// <returns>Returns all products and any active promotions</returns>
public List<ProductDTO> GetProducts()
{
var result = db.Products.OrderBy(p => p.Description);
List<ProductDTO> productsDTO = new List<ProductDTO>();
foreach(Product product in result.ToList())
{
// get the product DTO, and only return promotions that have not expired
ProductDTO productDTO = new ProductDTO
{
Code = product.Code,
Description = product.Description,
ProductTypeCode = product.ProductTypeCode,
Price = product.Price,
Promotions = ConvertPromotionList(product.Promotions.Where(p => p.EndDate == null).ToList())
};
productsDTO.Add(productDTO);
}
return productsDTO;
}
private decimal GetPrice(ProductDTO product, ref int productItemCount, ref bool promotionApplied, OrderDTO order)
{
// set the price (including a discount)
decimal price = product.Price;
if (product.Promotions.Count > 0)
{
// assume the service only return 1 active promotion
PromotionDTO promotion = product.Promotions.First();
if (promotion.PromotionCode == Constants.PromotionType.Discount)
{
// we reset the productItemCount once the promotion reaches the max apply to count
if (promotion.ApplyTo != null && productItemCount > promotion.Quantity + promotion.ApplyTo)
productItemCount = 1;
// set the price by the percentage discount
if (productItemCount > promotion.Quantity)
{
price = price * promotion.Amount;
promotionApplied = true;
}
}
else if (promotion.PromotionCode == Constants.PromotionType.Price && productItemCount == promotion.Quantity)
{
// for a price by a number of items, we set the price on the final item in the group, and set
// all other items in the group to a price of 0
for (int i = order.OrderItems.Count - 1; i >= order.OrderItems.Count - promotion.Quantity + 1; i--)
{
OrderItemDTO orderItemPriceAdjustment = order.OrderItems.ToList()[i];
orderItemPriceAdjustment.Price = 0;
orderItemPriceAdjustment.PromotionApplied = true;
}
price = promotion.Amount;
productItemCount = 0;
promotionApplied = true;
}
}
return price;
}
