1 files changed, 44 insertions, 0 deletions
diff --git a/app/models/solidus_subscriptions/promotion/rules/subscription_creation_order.rb b/app/models/solidus_subscriptions/promotion/rules/subscription_creation_order.rb
new file mode 100644
index 0000000..1b44125
--- /dev/null
+++ b/app/models/solidus_subscriptions/promotion/rules/subscription_creation_order.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+module SolidusSubscriptions
+  module Promotion
+    module Rules
+      class SubscriptionCreationOrder < ::Spree::PromotionRule
+        # Promotion can be applied to an entire order. Will only be true
+        # for Spree::Order
+        #
+        # @param promotable [Object] Any object which could have this
+        #   promotion rule applied to it.
+        #
+        # @return [Boolean]
+        def applicable?(promotable)
+          promotable.is_a? ::Spree::Order
+        end
+
+        # An order is eligible if it contains a line item with an associates
+        # subscription_line_item.  This rule applies to order and so its eligibility
+        # will always be considered against an order. Will only return true for
+        # orders containing Spree::Line item with associated subscription_line_items
+        #
+        # @param order [Spree::Order] The order which could have this rule applied
+        #   to it.
+        #
+        # @return [Boolean]
+        def eligible?(order, **_options)
+          order.subscription_line_items.any?
+        end
+
+        # Certain actions create adjustments on line items. In this case, only
+        # line items with associated subscription_line_items are eligible to be
+        # adjusted. Will only return true # if :line_item has an associated
+        # subscription.
+        #
+        # @param line_item [Spree::LineItem] The line item which could be adjusted
+        #   by the promotion.
+        def actionable?(line_item)
+          line_item.subscription_line_items.present?
+        end
+      end
+    end
+  end
+end