Display credit used on the order confirmation page

app/controllers/spree/orders_controller.rb

@@ -29,7 +29,17 @@ module Spree
       hide_ofn_navigation(@order.distributor)
     end
 
-    def show; end
+    def show
+      credit_payment_method = @order.distributor.payment_methods.customer_credit
+      credit_payment = @order.payments.find_by(payment_method: credit_payment_method)
+      @paid_with_credit = credit_payment&.amount
+
+      @payment_total = if credit_payment.nil?
+                         @order.payment_total
+                       else
+                         @order.payment_total - @paid_with_credit
+                       end
+    end
 
     def empty
       if @order = current_order

app/views/spree/orders/_form.html.haml

@@ -48,9 +48,17 @@
             %h5
               = t :orders_form_total
           %td.text-right
-            %h5.order-total.grand-total= @order.display_total
+            %h5.order-total.grand-total= @order.display_total.to_html
           %td
 
+        - if @paid_with_credit.present?
+          %tr
+            %td.text-right{colspan: "3"}
+              %strong
+                = t :customer_credit
+            %td.text-right#customer-credit
+              %span.order-total= Spree::Money.new(-1 * @paid_with_credit).to_html
+
         - if @order.total_tax > 0
           %tr
             %td.text-right{colspan:"3"}

app/views/spree/orders/_totals_footer.html.haml

@@ -25,13 +25,21 @@
           = t :order_total_price
       %td.text-right.total
         %h5#order_total= order.display_total.to_html
+    - if @paid_with_credit.present?
+      %tr.total
+        %td.text-right{colspan: "3"}
+          %strong
+            = t :customer_credit
+        %td.text-right.total#customer-credit
+          %strong
+            = Spree::Money.new(-1 * @paid_with_credit).to_html
     %tr.total
       %td.text-right{colspan: "3"}
         %strong
           = t :order_amount_paid
-      %td.text-right.total{id: "amount-paid"}
+      %td.text-right.total#amount-paid
         %strong
-          = order.display_payment_total.to_html
+          = Spree::Money.new(@payment_total).to_html
   - if order.outstanding_balance.positive?
     %tr.total
       %td.text-right{colspan: "3"}

spec/system/consumer/checkout/summary_spec.rb

@@ -426,7 +426,8 @@ RSpec.describe "As a consumer, I want to checkout my order" do
             # TODO it should be displaying some kind indication it was paid with credit
             expect(page).to have_content "PAID"
             expect(page).to have_content "Paying via: Customer credit"
-            expect(page).to have_selector("#amount-paid", text: with_currency(10.00))
+            expect(page).to have_selector("#customer-credit", text: with_currency(-10.00))
+            expect(page).to have_selector("#amount-paid", text: with_currency(0.00))
           end
         end
 
@@ -469,9 +470,10 @@ RSpec.describe "As a consumer, I want to checkout my order" do
               expect(page).to have_content "NOT PAID"
               expect(page).to have_content "Paying via: #{payment_method.display_name}"
               within "#line-items" do
-                expect(page).to have_selector("#amount-paid", text: with_currency(2.00))
-                # actual order total is 10.00
+                expect(page).to have_selector("#customer-credit", text: with_currency(-2.00))
+                expect(page).to have_selector("#amount-paid", text: with_currency(0.00))
                 expect(page).to have_content("Balance Due")
+                # actual order total is 10.00
                 expect(page).to have_selector("#balance-due", text: with_currency(8.00))
               end
             end

spec/system/consumer/shopping/orders_spec.rb

@@ -196,6 +196,26 @@ RSpec.describe "Order Management" do
         expect(page).to have_content 'Cancelled'
         expect(order.reload).to be_canceled
       end
+
+      context "with customer credit" do
+        let(:credit_payment_method) { Spree::PaymentMethod.customer_credit }
+
+        it "displays the credit used" do
+          create(
+            :customer_account_transaction,
+            amount: 100, customer: order.customer,
+            payment_method: credit_payment_method
+          )
+          # Add credit payment
+          payment = order.payments.create!(payment_method: credit_payment_method,
+                                           amount: 2.00)
+          payment.internal_purchase!
+
+          visit order_path(order)
+
+          expect(page).to have_selector("#customer-credit", text: with_currency(-2.00))
+        end
+      end
     end
   end