Refactor, add OrderManagement::Order::Updater#update_voucher

Move the logic to update a voucher and associated order to
`OrderManagement`

app/controllers/spree/orders_controller.rb

@@ -70,8 +70,7 @@ def update
         @order.recreate_all_fees! # Enterprise fees on line items and on the order itself
 
         # Re apply the voucher
-        VoucherAdjustmentsService.new(@order).update
-        @order.update_totals_and_states
+        OrderManagement::Order::Updater.new(@order).update_voucher
 
         if @order.complete?
           @order.update_payment_fees!

app/controllers/voucher_adjustments_controller.rb

@@ -72,8 +72,7 @@ def add_voucher_to_order(voucher)
     # calculate_voucher_adjustment
     clear_payments
 
-    VoucherAdjustmentsService.new(@order).update
-    @order.update_totals_and_states
+    OrderManagement::Order::Updater.new(@order).update_voucher
 
     true
   end

engines/order_management/app/services/order_management/order/updater.rb

@@ -161,6 +161,11 @@ def after_payment_update(payment)
         persist_totals
       end
 
+      def update_voucher
+        VoucherAdjustmentsService.new(order).update
+        update_totals_and_states
+      end
+
       private
 
       def cancel_payments_requiring_auth

engines/order_management/spec/services/order_management/order/updater_spec.rb

@@ -460,6 +460,26 @@ module Order
         end
       end
 
+      describe "#update_voucher" do
+        let(:voucher_service) { instance_double(VoucherAdjustmentsService) }
+
+        it "calls VoucherAdjustmentsService" do
+          expect(VoucherAdjustmentsService).to receive(:new).and_return(voucher_service)
+          expect(voucher_service).to receive(:update)
+
+          updater.update_voucher
+        end
+
+        it "calls update_totals_and_states" do
+          allow(VoucherAdjustmentsService).to receive(:new).and_return(voucher_service)
+          allow(voucher_service).to receive(:update)
+
+          expect(updater).to receive(:update_totals_and_states)
+
+          updater.update_voucher
+        end
+      end
+
       def update_order_quantity(order)
         order.line_items.first.update_attribute(:quantity, 2)
       end

spec/controllers/checkout_controller_spec.rb

@@ -507,8 +507,7 @@
         before do
           # Adding voucher to the order
           vine_voucher.create_adjustment(vine_voucher.code, order)
-          VoucherAdjustmentsService.new(order).update
-          order.update_totals_and_states
+          OrderManagement::Order::Updater.new(order).update_voucher
 
           allow(Vine::VoucherRedeemerService).to receive(:new).and_return(vine_voucher_redeemer)
         end

spec/lib/reports/sales_tax_totals_by_order_spec.rb

@@ -271,8 +271,7 @@
   def add_voucher(order, voucher)
     # Add voucher to the order
     voucher.create_adjustment(voucher.code, order)
-    VoucherAdjustmentsService.new(order).update
-    order.update_totals_and_states
+    OrderManagement::Order::Updater.new(order).update_voucher
 
     Orders::WorkflowService.new(order).complete!
   end

spec/requests/spree/admin/payments_spec.rb

@@ -366,7 +366,6 @@
 
   def add_voucher_to_order(voucher, order)
     voucher.create_adjustment(voucher.code, order)
-    VoucherAdjustmentsService.new(order).update
-    order.update_totals_and_states
+    OrderManagement::Order::Updater.new(order).update_voucher
   end
 end

spec/services/vine/voucher_redeemer_service_spec.rb

@@ -261,8 +261,7 @@
 
   def add_voucher(voucher)
     voucher.create_adjustment(voucher.code, order)
-    VoucherAdjustmentsService.new(order).update
-    order.update_totals_and_states
+    OrderManagement::Order::Updater.new(order).update_voucher
   end
 
   def mock_api_response(success:, data: nil, status: 200)

spec/system/admin/reports/revenues_by_hub_spec.rb

@@ -154,8 +154,6 @@ def apply_voucher(order, voucher)
     order.update_shipping_fees!
     order.update_order!
 
-    VoucherAdjustmentsService.new(order).update
-
-    order.update_totals_and_states
+    OrderManagement::Order::Updater.new(order).update_voucher
   end
 end

spec/system/consumer/checkout/payment_spec.rb

@@ -383,7 +383,6 @@
 
   def add_voucher_to_order(voucher, order)
     voucher.create_adjustment(voucher.code, order)
-    VoucherAdjustmentsService.new(order).update
-    order.update_totals_and_states
+    OrderManagement::Order::Updater.new(order).update_voucher
   end
 end

spec/system/consumer/checkout/summary_spec.rb

@@ -479,8 +479,7 @@ def confirmation_page_expect_paid(paid_state:, paid_amount:)
 
   def add_voucher_to_order(voucher, order)
     voucher.create_adjustment(voucher.code, order)
-    VoucherAdjustmentsService.new(order).update
-    order.update_totals_and_states
+    OrderManagement::Order::Updater.new(order).update_voucher
   end
 
   def set_up_order(balance, state)