1 files changed, 32 insertions, 0 deletions

diff --git a/app/services/concerns/issues/resolve_discussions.rb b/app/services/concerns/issues/resolve_discussions.rb
new file mode 100644
index 00000000000..297c7d696c3
--- /dev/null
+++ b/app/services/concerns/issues/resolve_discussions.rb
@@ -0,0 +1,32 @@
+module Issues
+  module ResolveDiscussions
+    attr_reader :merge_request_to_resolve_discussions_of_iid, :discussion_to_resolve_id
+
+    def filter_resolve_discussion_params
+      @merge_request_to_resolve_discussions_of_iid ||= params.delete(:merge_request_to_resolve_discussions_of)
+      @discussion_to_resolve_id ||= params.delete(:discussion_to_resolve)
+    end
+
+    def merge_request_to_resolve_discussions_of
+      return @merge_request_to_resolve_discussions_of if defined?(@merge_request_to_resolve_discussions_of)
+
+      @merge_request_to_resolve_discussions_of = MergeRequestsFinder.new(current_user, project_id: project.id).
+                                                     execute.
+                                                     find_by(iid: merge_request_to_resolve_discussions_of_iid)
+    end
+
+    def discussions_to_resolve
+      return [] unless merge_request_to_resolve_discussions_of
+
+      @discussions_to_resolve ||=
+        if discussion_to_resolve_id
+          discussion_or_nil = merge_request_to_resolve_discussions_of
+                                .find_diff_discussion(discussion_to_resolve_id)
+          Array(discussion_or_nil)
+        else
+          merge_request_to_resolve_discussions_of
+            .resolvable_discussions
+        end
+    end
+  end
+end