public virtual async Task <ICollection <ShippingMethod> > GetAvailableShippingMethodsAsync()
{
var availableShippingMethods = new List <ShippingMethod>();
// TODO: Remake with shipmentId
var serviceModels = await _cartApi.CartModuleGetShipmentMethodsAsync(_cart.Id);
foreach (var serviceModel in serviceModels)
{
availableShippingMethods.Add(serviceModel.ToWebModel(_cart.Currency));
}
//Evaluate tax for shipping methods
var taxEvalContext = _cart.ToTaxEvalContext();
taxEvalContext.Lines.Clear();
taxEvalContext.Lines.AddRange(availableShippingMethods.Select(x => x.ToTaxLine()));
var taxResult = await _commerceApi.CommerceEvaluateTaxesAsync(_cart.StoreId, taxEvalContext);
if (taxResult != null)
{
var taxRates = taxResult.Select(x => x.ToWebModel(_cart.Currency)).ToList();
foreach (var shippingMethod in availableShippingMethods)
{
shippingMethod.ApplyTaxRates(taxRates);
}
}
//Evaluate promotions for shipping methods
var promoEvalContext = _cart.ToPromotionEvaluationContext();
await _promotionEvaluator.EvaluateDiscountsAsync(promoEvalContext, availableShippingMethods);
return(availableShippingMethods);
}
private async Task ValidateShipmentsAsync(ShoppingCart cart)
{
var workContext = _workContextFactory();
foreach (var shipment in cart.Shipments.ToArray())
{
shipment.ValidationErrors.Clear();
var availableShippingMethods = await _cartApi.CartModuleGetShipmentMethodsAsync(cart.Id);
if (availableShippingMethods.Count == 0)
{
shipment.ValidationWarnings.Add(new ShippingUnavailableError());
break;
}
if (!string.IsNullOrEmpty(shipment.ShipmentMethodCode))
{
var existingShippingMethod = availableShippingMethods.Select(sm => sm.ToWebModel(cart.Currency)).FirstOrDefault(sm => shipment.HasSameMethod(sm));
if (existingShippingMethod == null)
{
shipment.ValidationWarnings.Add(new ShippingUnavailableError());
break;
}
if (existingShippingMethod != null)
{
if (existingShippingMethod.Price != shipment.ShippingPrice &&
(cart.ValidationType == ValidationType.PriceAndQuantity || cart.ValidationType == ValidationType.Price))
{
shipment.ValidationWarnings.Add(new ShippingPriceError(shipment.ShippingPrice));
cart.Shipments.Clear();
cart.Shipments.Add(existingShippingMethod.ToShipmentModel(cart.Currency));
}
}
}
}
}