1 files changed, 44 insertions, 0 deletions
diff --git a/app/models/users/merge_request_interaction.rb b/app/models/users/merge_request_interaction.rb
new file mode 100644
index 00000000000..35d1d3206b5
--- /dev/null
+++ b/app/models/users/merge_request_interaction.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+module Users
+  class MergeRequestInteraction
+    def initialize(user:, merge_request:)
+      @user = user
+      @merge_request = merge_request
+    end
+
+    def declarative_policy_subject
+      merge_request
+    end
+
+    def can_merge?
+      merge_request.can_be_merged_by?(user)
+    end
+
+    def can_update?
+      user.can?(:update_merge_request, merge_request)
+    end
+
+    def review_state
+      reviewer&.state
+    end
+
+    def reviewed?
+      reviewer&.reviewed? == true
+    end
+
+    def approved?
+      merge_request.approvals.any? { |app| app.user_id == user.id }
+    end
+
+    private
+
+    def reviewer
+      @reviewer ||= merge_request.merge_request_reviewers.find { |r| r.user_id == user.id }
+    end
+
+    attr_reader :user, :merge_request
+  end
+end
+
+::Users::MergeRequestInteraction.prepend_if_ee('EE::Users::MergeRequestInteraction')