Call VariantTagRulesFilterer when variant_tag feature is enabled

We only support either inventory or variant_tag feature, with the later
taking precedence if both are turned on.

app/services/order_cycles/distributed_products_service.rb

@@ -118,13 +118,22 @@ module OrderCycles
     end
 
     def variants
-      options[:inventory_enabled] ? stocked_variants_and_overrides : stocked_variants
+      return tag_rule_filtered_variants if options[:variant_tag_enabled]
+
+      return stocked_variants_and_overrides if options[:inventory_enabled]
+
+      stocked_variants
     end
 
     def stocked_variants
       Spree::Variant.joins(:stock_items).where(query_stock)
     end
 
+    def tag_rule_filtered_variants
+      VariantTagRulesFilterer.new(distributor:, customer:,
+                                  variants_relation: stocked_variants).call
+    end
+
     def stocked_variants_and_overrides
       stocked_variants = Spree::Variant.
         joins("LEFT OUTER JOIN variant_overrides ON variant_overrides.variant_id = spree_variants.id

spec/services/order_cycles/distributed_products_service_spec.rb

@@ -68,6 +68,20 @@ RSpec.describe OrderCycles::DistributedProductsService do
 
           expect(products_relation).not_to include product
         end
+
+        context "with variant_tag enabled" do
+          subject(:products_relation) {
+            described_class.new(
+              distributor, order_cycle, customer, variant_tag_enabled: true
+            ).products_relation
+          }
+
+          it "calls VariantTagRulesFilterer" do
+            expect(VariantTagRulesFilterer).to receive(:new).and_call_original
+
+            products_relation
+          end
+        end
       end
 
       context "with variant overrides" do
@@ -81,6 +95,12 @@ RSpec.describe OrderCycles::DistributedProductsService do
           create(:variant_override, hub: distributor, variant:, count_on_hand: 0)
         }
 
+        it "calls ProductTagRulesFilterer" do
+          expect(ProductTagRulesFilterer).to receive(:new).and_call_original
+
+          products_relation
+        end
+
         it "does not return product when an override is out of stock" do
           expect(products_relation).not_to include product
         end