Add some logic to check whether a saved card has been selected before making a request from Stripe

app/assets/javascripts/darkswarm/services/checkout.js.coffee

@@ -5,7 +5,7 @@ Darkswarm.factory 'Checkout', ($injector, CurrentOrder, ShippingMethods, StripeJ
     order: CurrentOrder.order
 
     purchase: ->
-      if @paymentMethod()?.method_type == 'stripe'
+      if @paymentMethod()?.method_type == 'stripe' && !@secrets.selected_card
         StripeJS.requestToken(@secrets, @submit)
       else
         @submit()
@@ -60,14 +60,21 @@ Darkswarm.factory 'Checkout', ($injector, CurrentOrder, ShippingMethods, StripeJ
         }
 
       if @paymentMethod()?.method_type == 'stripe'
-        angular.extend munged_order.payments_attributes[0], {
-          source_attributes:
-            gateway_payment_profile_id: @secrets.token
-            cc_type: @secrets.cc_type
-            last_digits: @secrets.card.last4
-            month: @secrets.card.exp_month
-            year: @secrets.card.exp_year
-        }
+        if @secrets.selected_card
+          angular.extend munged_order.payments_attributes[0], {
+            source_attributes:
+              id: @secrets.selected_card
+              type: 'Spree::CreditCard'
+          }
+        else
+          angular.extend munged_order.payments_attributes[0], {
+            source_attributes:
+              gateway_payment_profile_id: @secrets.token
+              cc_type: @secrets.cc_type
+              last_digits: @secrets.card.last4
+              month: @secrets.card.exp_month
+              year: @secrets.card.exp_year
+          }
 
       munged_order