public override async Task CalculateAsync(CalculatorContext context, CalculatorDelegate next)
{
var product = context.Product;
if (product.ProductType != ProductType.GroupedProduct)
{
// Proceed with pipeline and omit this calculator, it is made for grouped products only.
await next(context);
return;
}
var options = context.Options;
if (options.IgnoreGroupedProducts)
{
await next(context);
return;
}
await EnsureAssociatedProductsAreLoaded(product, context);
if (context.AssociatedProducts.Count == 0)
{
// No children, get out.
return;
}
CalculatorContext lowestPriceCalculation = null;
if (options.DetermineLowestPrice && context.AssociatedProducts.Count > 1)
{
foreach (var associatedProduct in context.AssociatedProducts)
{
// Get the final price of associated product
var childCalculation = await CalculateChildPriceAsync(associatedProduct, context);
if (lowestPriceCalculation == null || childCalculation.FinalPrice < lowestPriceCalculation.FinalPrice)
{
// Set the lowest price calculation
lowestPriceCalculation = childCalculation;
}
}
lowestPriceCalculation.HasPriceRange = true;
}
else
{
// Get the final price of first associated product
lowestPriceCalculation = await CalculateChildPriceAsync(context.AssociatedProducts.First(), context);
}
// Copy data from child context to this context
lowestPriceCalculation.CopyTo(context);
}
