Move wholesale calculation for re-use

app/controllers/admin/dfc_product_imports_controller.rb

@@ -20,13 +20,11 @@ def index
 
       catalog_url = params.require(:catalog_url)
       catalog = DfcCatalog.load(spree_current_user, catalog_url)
-      broker = FdcOfferBroker.new(catalog)
+      catalog.apply_wholesale_values!
 
       # * First step: import all products for given enterprise.
       # * Second step: render table and let user decide which ones to import.
       imported = catalog.products.map do |subject|
-        adjust_to_wholesale_price(broker, subject)
-
         existing_variant = enterprise.supplied_variants.linked_to(subject.semanticId)
 
         if existing_variant
@@ -43,24 +41,5 @@ def index
       flash[:error] = e.message
       redirect_to admin_product_import_path
     end
-
-    private
-
-    def adjust_to_wholesale_price(broker, product)
-      transformation = broker.best_offer(product.semanticId)
-
-      return if transformation.factor == 1
-
-      wholesale_variant_price = transformation.offer.price
-
-      return unless wholesale_variant_price
-
-      offer = product.catalogItems&.first&.offers&.first
-
-      return unless offer
-
-      offer.price = wholesale_variant_price.dup
-      offer.price.value = offer.price.value.to_f / transformation.factor
-    end
   end
 end

engines/dfc_provider/app/services/dfc_catalog.rb

@@ -27,4 +27,30 @@ def item(semantic_id)
   def select_type(semantic_type)
     @graph.select { |i| i.semanticType == semantic_type }
   end
+
+  def apply_wholesale_values!
+    broker = FdcOfferBroker.new(self)
+    products.each do |product|
+      adjust_to_wholesale_price(broker, product)
+    end
+  end
+
+  private
+
+  def adjust_to_wholesale_price(broker, product)
+    transformation = broker.best_offer(product.semanticId)
+
+    return if transformation.factor == 1
+
+    wholesale_variant_price = transformation.offer.price
+
+    return unless wholesale_variant_price
+
+    offer = product.catalogItems&.first&.offers&.first
+
+    return unless offer
+
+    offer.price = wholesale_variant_price.dup
+    offer.price.value = offer.price.value.to_f / transformation.factor
+  end
 end