1 files changed, 65 insertions, 0 deletions
diff --git a/app/finders/merge_request/metrics_finder.rb b/app/finders/merge_request/metrics_finder.rb
new file mode 100644
index 00000000000..d93e53d1636
--- /dev/null
+++ b/app/finders/merge_request/metrics_finder.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+class MergeRequest::MetricsFinder
+  include Gitlab::Allowable
+
+  def initialize(current_user, params = {})
+    @current_user = current_user
+    @params = params
+  end
+
+  def execute
+    return klass.none if target_project.blank? || user_not_authorized?
+
+    items = init_collection
+    items = by_target_project(items)
+    items = by_merged_after(items)
+    items = by_merged_before(items)
+
+    items
+  end
+
+  private
+
+  attr_reader :current_user, :params
+
+  def by_target_project(items)
+    items.by_target_project(target_project)
+  end
+
+  def by_merged_after(items)
+    return items unless merged_after
+
+    items.merged_after(merged_after)
+  end
+
+  def by_merged_before(items)
+    return items unless merged_before
+
+    items.merged_before(merged_before)
+  end
+
+  def user_not_authorized?
+    !can?(current_user, :read_merge_request, target_project)
+  end
+
+  def init_collection
+    klass.all
+  end
+
+  def klass
+    MergeRequest::Metrics
+  end
+
+  def target_project
+    params[:target_project]
+  end
+
+  def merged_after
+    params[:merged_after]
+  end
+
+  def merged_before
+    params[:merged_before]
+  end
+end