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VirtoCommerce.OrderModule.Data/Services/DefaultCustomerOrderTotalsCalculator.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| using System; | ||
| using System.Linq; | ||
| using VirtoCommerce.Domain.Order.Model; | ||
| using VirtoCommerce.Domain.Order.Services; | ||
| using VirtoCommerce.Platform.Core.Common; | ||
|
|
||
| namespace VirtoCommerce.OrderModule.Data.Services | ||
| { | ||
| /// <summary> | ||
| /// Respond for totals values calculation for Customer order and all nested objects | ||
| /// </summary> | ||
| public class DefaultCustomerOrderTotalsCalculator : ICustomerOrderTotalsCalculator | ||
| { | ||
| /// <summary> | ||
| /// Order subtotal discount | ||
| /// When a discount is applied to the cart subtotal, the tax calculation has already been applied, and is reflected in the tax subtotal. | ||
| /// Therefore, a discount applying to the cart subtotal will occur after tax. | ||
| /// For instance, if the cart subtotal is $100, and $15 is the tax subtotal, a cart - wide discount of 10 % will yield a total of $105($100 subtotal – $10 discount + $15 tax on the original $100). | ||
| /// </summary> | ||
| public virtual void CalculateTotals(CustomerOrder order) | ||
| { | ||
| if (order == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(order)); | ||
| } | ||
| //Calculate totals for line items | ||
| if (!order.Items.IsNullOrEmpty()) | ||
| { | ||
| foreach (var item in order.Items) | ||
| { | ||
| CalculateLineItemTotals(item); | ||
| } | ||
| } | ||
| //Calculate totals for shipments | ||
| if (!order.Shipments.IsNullOrEmpty()) | ||
| { | ||
| foreach (var shipment in order.Shipments) | ||
| { | ||
| CalculateShipmentTotals(shipment); | ||
| } | ||
| } | ||
| //Calculate totals for payments | ||
| if (!order.InPayments.IsNullOrEmpty()) | ||
| { | ||
| foreach (var payment in order.InPayments) | ||
| { | ||
| CalculatePaymentTotals(payment); | ||
| } | ||
| } | ||
|
|
||
| order.DiscountTotal = 0m; | ||
| order.DiscountTotalWithTax = 0m; | ||
| order.FeeTotal = order.Fee; | ||
| order.TaxTotal = 0m; | ||
|
|
||
| if (!order.Items.IsNullOrEmpty()) | ||
| { | ||
| order.SubTotal = order.Items.Sum(x => x.Price * x.Quantity); | ||
| order.SubTotalWithTax = order.Items.Sum(x => x.PriceWithTax * x.Quantity); | ||
| order.SubTotalTaxTotal += order.Items.Sum(x => x.TaxTotal); | ||
| order.SubTotalDiscount = order.Items.Sum(x => x.DiscountTotal); | ||
| order.SubTotalDiscountWithTax = order.Items.Sum(x => x.DiscountTotalWithTax); | ||
| order.DiscountTotal += order.Items.Sum(x => x.DiscountTotal); | ||
| order.DiscountTotalWithTax += order.Items.Sum(x => x.DiscountTotalWithTax); | ||
| order.FeeTotal += order.Items.Sum(x => x.Fee); | ||
| order.FeeTotalWithTax += order.Items.Sum(x => x.FeeWithTax); | ||
| order.TaxTotal += order.Items.Sum(x => x.TaxTotal); | ||
| } | ||
|
|
||
| if (!order.Shipments.IsNullOrEmpty()) | ||
| { | ||
| order.ShippingTotal = order.Shipments.Sum(x => x.Total); | ||
| order.ShippingTotalWithTax = order.Shipments.Sum(x => x.TotalWithTax); | ||
| order.ShippingSubTotal = order.Shipments.Sum(x => x.Price); | ||
| order.ShippingSubTotalWithTax = order.Shipments.Sum(x => x.PriceWithTax); | ||
| order.ShippingDiscountTotal = order.Shipments.Sum(x => x.DiscountAmount); | ||
| order.ShippingDiscountTotalWithTax = order.Shipments.Sum(x => x.DiscountAmountWithTax); | ||
| order.DiscountTotal += order.Shipments.Sum(x => x.DiscountAmount); | ||
| order.DiscountTotalWithTax += order.Shipments.Sum(x => x.DiscountAmountWithTax); | ||
| order.FeeTotal += order.Shipments.Sum(x => x.Fee); | ||
| order.FeeTotalWithTax += order.Shipments.Sum(x => x.FeeWithTax); | ||
| order.TaxTotal += order.Shipments.Sum(x => x.TaxTotal); | ||
| } | ||
|
|
||
| if (!order.InPayments.IsNullOrEmpty()) | ||
| { | ||
| order.PaymentTotal = order.InPayments.Sum(x => x.Total); | ||
| order.PaymentTotalWithTax = order.InPayments.Sum(x => x.TotalWithTax); | ||
| order.PaymentSubTotal = order.InPayments.Sum(x => x.Price); | ||
| order.PaymentSubTotalWithTax = order.InPayments.Sum(x => x.PriceWithTax); | ||
| order.PaymentDiscountTotal = order.InPayments.Sum(x => x.DiscountAmount); | ||
| order.PaymentDiscountTotalWithTax = order.InPayments.Sum(x => x.DiscountAmountWithTax); | ||
| order.DiscountTotal += order.InPayments.Sum(x => x.DiscountAmount); | ||
| order.DiscountTotalWithTax += order.InPayments.Sum(x => x.DiscountAmountWithTax); | ||
| order.TaxTotal += order.InPayments.Sum(x => x.TaxTotal); | ||
| } | ||
|
|
||
| var taxFactor = 1 + order.TaxPercentRate; | ||
| order.FeeWithTax = order.Fee * taxFactor; | ||
| order.FeeTotalWithTax = order.FeeTotal * taxFactor; | ||
| order.DiscountTotal += order.DiscountAmount; | ||
| order.DiscountTotalWithTax += order.DiscountAmount * taxFactor; | ||
| //Subtract from order tax total self discount tax amount | ||
| order.TaxTotal -= order.DiscountAmount * order.TaxPercentRate; | ||
| order.Total = order.SubTotal + order.ShippingSubTotal + order.TaxTotal + order.PaymentSubTotal + order.FeeTotal - order.DiscountTotal; | ||
| } | ||
|
|
||
| protected virtual void CalculatePaymentTotals(PaymentIn payment) | ||
| { | ||
| if (payment == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(payment)); | ||
| } | ||
| var taxFactor = 1 + payment.TaxPercentRate; | ||
| payment.Total = payment.Price - payment.DiscountAmount; | ||
| payment.TotalWithTax = payment.Total * taxFactor; | ||
| payment.PriceWithTax = payment.Price * taxFactor; | ||
| payment.DiscountAmountWithTax = payment.DiscountAmount * taxFactor; | ||
| payment.TaxTotal = payment.Total * payment.TaxPercentRate; | ||
| } | ||
|
|
||
| protected virtual void CalculateShipmentTotals(Shipment shipment) | ||
| { | ||
| if (shipment == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(shipment)); | ||
| } | ||
| var taxFactor = 1 + shipment.TaxPercentRate; | ||
| shipment.PriceWithTax = shipment.Price * taxFactor; | ||
| shipment.DiscountAmountWithTax = shipment.DiscountAmount * taxFactor; | ||
| shipment.FeeWithTax = shipment.Fee * taxFactor; | ||
| shipment.Total = shipment.Price + shipment.Fee - shipment.DiscountAmount; | ||
| shipment.TotalWithTax = shipment.PriceWithTax + shipment.FeeWithTax - shipment.DiscountAmountWithTax; | ||
| shipment.TaxTotal = shipment.Total * shipment.TaxPercentRate; | ||
| } | ||
|
|
||
| protected virtual void CalculateLineItemTotals(LineItem lineItem) | ||
| { | ||
| if (lineItem == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(lineItem)); | ||
| } | ||
| var taxFactor = 1 + lineItem.TaxPercentRate; | ||
| lineItem.PriceWithTax = lineItem.Price * taxFactor; | ||
| lineItem.PlacedPrice = lineItem.Price - lineItem.DiscountAmount; | ||
| lineItem.ExtendedPrice = lineItem.PlacedPrice * lineItem.Quantity; | ||
| lineItem.DiscountAmountWithTax = lineItem.DiscountAmount * taxFactor; | ||
| lineItem.DiscountTotal = lineItem.DiscountAmount * Math.Max(1, lineItem.Quantity); | ||
| lineItem.FeeWithTax = lineItem.Fee * taxFactor; | ||
| lineItem.PlacedPriceWithTax = lineItem.PlacedPrice * taxFactor; | ||
| lineItem.ExtendedPriceWithTax = lineItem.PlacedPriceWithTax * lineItem.Quantity; | ||
| lineItem.DiscountTotalWithTax = lineItem.DiscountAmountWithTax * Math.Max(1, lineItem.Quantity); | ||
| lineItem.TaxTotal = (lineItem.ExtendedPrice + lineItem.Fee) * lineItem.TaxPercentRate; | ||
| } | ||
| } | ||
| } |
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