LineItem.cs

using System;
using System.Collections.Generic;
using System.Linq;
using VirtoCommerce.CoreModule.Core.Common;
using VirtoCommerce.CoreModule.Core.Tax;
using VirtoCommerce.Platform.Core.Common;
using VirtoCommerce.Platform.Core.DynamicProperties;
using VirtoCommerce.Platform.Core.Swagger;

namespace VirtoCommerce.OrdersModule.Core.Model
{
    [SwaggerSchemaId("OrderLineItem")]
    public class LineItem : AuditableEntity, IHasOuterId, IHasTaxDetalization, ISupportCancellation, IHasDimension,
        IHasDynamicProperties, ITaxable, IHasDiscounts, ICloneable, IHasFeesDetalization
    {
        /// <summary>
        /// Price id
        /// </summary>
        public string PriceId { get; set; }

        public string Currency { get; set; }

        /// <summary>
        ///  unit price without discount and tax
        /// </summary>
        public decimal Price { get; set; }

        public virtual decimal PriceWithTax { get; set; }

        public decimal ListTotal { get; set; }
        public decimal ListTotalWithTax { get; set; }

        /// <summary>
        /// Resulting price with discount for one unit
        /// </summary>
        public virtual decimal PlacedPrice { get; set; }

        public virtual decimal PlacedPriceWithTax { get; set; }

        public virtual decimal ExtendedPrice { get; set; }

        public virtual decimal ExtendedPriceWithTax { get; set; }

        /// <summary>
        /// Gets the value of the single qty line item discount amount
        /// </summary>
        public virtual decimal DiscountAmount { get; set; }

        /// <summary>
        /// Indicates whether the discount amount per item was rounded according to the currency settings.
        /// If false, DiscountAmount and PlacedPrice should not be visible to the customer, as these values may be incorrect;
        /// in this case, DiscountTotal and ExtendedPrice should be used.
        /// </summary>
        public bool IsDiscountAmountRounded { get; set; }

        public virtual decimal DiscountAmountWithTax { get; set; }

        public decimal DiscountTotal { get; set; }

        public decimal DiscountTotalWithTax { get; set; }

        //Any extra Fee 
        public virtual decimal Fee { get; set; }

        public virtual decimal FeeWithTax { get; set; }

        #region ITaxable Members

        /// <summary>
        /// Tax category or type
        /// </summary>
        public string TaxType { get; set; }

        public decimal TaxTotal { get; set; }

        public decimal TaxPercentRate { get; set; }

        #endregion

        /// <summary>
        /// Reserve quantity
        /// </summary>
        public int ReserveQuantity { get; set; }
        public int Quantity { get; set; }

        public string ProductId { get; set; }
        public string Sku { get; set; }
        public string ProductType { get; set; }
        public string CatalogId { get; set; }
        public string CategoryId { get; set; }

        public string Name { get; set; }
        public string ProductOuterId { get; set; }
        public string Comment { get; set; }
        public string Status { get; set; }

        public string ImageUrl { get; set; }

        public bool? IsGift { get; set; }
        public string ShippingMethodCode { get; set; }
        public string FulfillmentLocationCode { get; set; }
        public string FulfillmentCenterId { get; set; }
        public string FulfillmentCenterName { get; set; }

        public string OuterId { get; set; }
        public ICollection<FeeDetail> FeeDetails { get; set; }

        public string VendorId { get; set; }

        public bool IsConfigured { get; set; }

        #region IHaveDimension Members

        public string WeightUnit { get; set; }
        public decimal? Weight { get; set; }

        public string MeasureUnit { get; set; }
        public decimal? Height { get; set; }
        public decimal? Length { get; set; }
        public decimal? Width { get; set; }

        #endregion

        #region ISupportCancelation Members

        public bool IsCancelled { get; set; }
        public DateTime? CancelledDate { get; set; }
        public string CancelReason { get; set; }

        #endregion

        #region IHasDynamicProperties Members
        public string ObjectType => typeof(LineItem).FullName;
        public ICollection<DynamicObjectProperty> DynamicProperties { get; set; }

        #endregion

        #region IHasDiscounts

        public ICollection<Discount> Discounts { get; set; }

        #endregion

        #region IHaveTaxDetalization Members

        public ICollection<TaxDetail> TaxDetails { get; set; }

        #endregion

        #region Configuration Items

        public ICollection<ConfigurationItem> ConfigurationItems { get; set; }

        #endregion

        public virtual void ReduceDetails(string responseGroup)
        {
            // Reduce details according to the response group
            var orderResponseGroup = EnumUtility.SafeParseFlags(responseGroup, CustomerOrderResponseGroup.Full);

            if (!orderResponseGroup.HasFlag(CustomerOrderResponseGroup.WithDiscounts))
            {
                Discounts = null;
            }

            if (!orderResponseGroup.HasFlag(CustomerOrderResponseGroup.WithPrices))
            {
                DiscountAmount = 0m;
                DiscountAmountWithTax = 0m;
                DiscountTotal = 0m;
                DiscountTotalWithTax = 0m;
                ExtendedPrice = 0m;
                ExtendedPriceWithTax = 0m;
                Fee = 0m;
                FeeWithTax = 0m;
                ListTotal = 0m;
                ListTotalWithTax = 0m;
                PlacedPrice = 0m;
                PlacedPriceWithTax = 0m;
                Price = 0m;
                PriceWithTax = 0m;
                TaxPercentRate = 0m;
                TaxTotal = 0m;
            }
        }

        public virtual void RestoreDetails(LineItem item)
        {
            DiscountAmount = item.DiscountAmount;
            DiscountAmountWithTax = item.DiscountAmountWithTax;
            DiscountTotal = item.DiscountTotal;
            DiscountTotalWithTax = item.DiscountTotalWithTax;
            ExtendedPrice = item.ExtendedPrice;
            ExtendedPriceWithTax = item.ExtendedPriceWithTax;
            Fee = item.Fee;
            FeeWithTax = item.FeeWithTax;
            ListTotal = item.ListTotal;
            ListTotalWithTax = item.ListTotalWithTax;
            PlacedPrice = item.PlacedPrice;
            PlacedPriceWithTax = item.PlacedPriceWithTax;
            Price = item.Price;
            PriceWithTax = item.PriceWithTax;
            TaxPercentRate = item.TaxPercentRate;
            TaxTotal = item.TaxTotal;
        }

        #region ICloneable members

        public virtual object Clone()
        {
            var result = MemberwiseClone() as LineItem;

            if (DynamicProperties != null)
            {
                result.DynamicProperties = new List<DynamicObjectProperty>(DynamicProperties.Select(x => x.Clone() as DynamicObjectProperty));
            }

            if (Discounts != null)
            {
                result.Discounts = new List<Discount>(Discounts.Select(x => x.Clone() as Discount));
            }

            if (TaxDetails != null)
            {
                result.TaxDetails = new List<TaxDetail>(TaxDetails.Select(x => x.Clone() as TaxDetail));
            }

            if (FeeDetails != null)
            {
                result.FeeDetails = new List<FeeDetail>(FeeDetails.Select(x => x.Clone() as FeeDetail));
            }

            return result;
        }

        #endregion
    }
}