Add more information to return items

app/serializers/spree/wombat/return_item_serializer.rb

@@ -5,10 +5,11 @@ module Wombat
     class ReturnItemSerializer < ActiveModel::Serializer
       attributes :return_authorization_id, :product_id, :exchange_product_id,
         :reception_status, :acceptance_status, :pre_tax_amount, :included_tax_total,
-        :additional_tax_total
+        :additional_tax_total, :order_number, :created_at, :reimbursed_at, :reimbursed,
+        :store
 
       def product_id
-        object.inventory_unit.variant.sku
+        inventory_unit.variant.sku
       end
 
       def exchange_product_id
@@ -18,6 +19,36 @@ def exchange_product_id
       def return_authorization_id
         object.return_authorization.try(:number)
       end
+
+      def order_number
+        order.number
+      end
+
+      def reimbursed_at
+        reimbursement.try(:created_at)
+      end
+
+      def reimbursed
+        !!reimbursement
+      end
+
+      def store
+        order.store.code
+      end
+
+      private
+
+      def inventory_unit
+        object.inventory_unit
+      end
+
+      def reimbursement
+        object.reimbursement
+      end
+
+      def order
+        inventory_unit.order
+      end
     end
   end
 end

spec/serializers/spree/wombat/return_item_serializer_spec.rb

@@ -47,6 +47,47 @@ module Wombat
           return_item.additional_tax_total = 5.0.to_d
           expect(serialized_return_item[:additional_tax_total]).to eq "5.0"
         end
+
+        it "sets the id" do
+          return_item.save!
+          expect(serialized_return_item[:id]).to eq return_item.id
+        end
+
+        it 'sets the order number' do
+          return_item.save!
+          expect(serialized_return_item[:order_number]).to eq return_item.inventory_unit.order.number
+        end
+
+        it 'sets the created_at' do
+          return_item.save!
+          expect(serialized_return_item[:created_at]).to eq return_item.created_at.as_json
+        end
+
+        context 'is reimbursed' do
+          it 'sets reimbursed to true' do
+            return_item.build_reimbursement
+            expect(serialized_return_item[:reimbursed]).to eq true
+          end
+
+          it 'sets reimbursed_at' do
+            return_item.create_reimbursement
+            expect(serialized_return_item[:reimbursed_at]).to eq return_item.reimbursement.created_at.as_json
+          end
+        end
+
+        context 'is not reimbursed' do
+          it 'sets reimbursed to false' do
+            expect(serialized_return_item[:reimbursed]).to eq false
+          end
+
+          it 'does not set reimbursed_at' do
+            expect(serialized_return_item[:reimbursed_at]).to eq nil
+          end
+        end
+
+        it "sets the order's store as the store code" do
+          expect(serialized_return_item[:store]).to eq return_item.inventory_unit.order.store.code
+        end
       end
     end
   end