1 files changed, 21 insertions, 0 deletions

diff --git a/app/services/discussions/unresolve_service.rb b/app/services/discussions/unresolve_service.rb
new file mode 100644
index 00000000000..fbd96ceafe7
--- /dev/null
+++ b/app/services/discussions/unresolve_service.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module Discussions
+  class UnresolveService < Discussions::BaseService
+    include Gitlab::Utils::StrongMemoize
+
+    def initialize(discussion, user)
+      @discussion = discussion
+      @user = user
+
+      super
+    end
+
+    def execute
+      @discussion.unresolve!
+
+      Gitlab::UsageDataCounters::MergeRequestActivityUniqueCounter
+        .track_unresolve_thread_action(user: @user)
+    end
+  end
+end