chore: fix code complexity

enterprise/app/controllers/api/v1/accounts/applied_slas_controller.rb

@@ -17,12 +17,28 @@ class Api::V1::Accounts::AppliedSlasController < Api::V1::Accounts::EnterpriseAc
   private
 
   def set_sla_responses
+    @sla_responses = filtrate(initial_query)
+                     .filter_by_created_at(range)
+                     .filter_by_inbox_id(params[:inbox_id])
+                     .filter_by_team_id(params[:team_id])
+                     .filter_by_sla_policy_id(params[:sla_policy_id])
+  end
+
+  def initial_query
     base_query = Current.account.applied_slas.left_joins(:conversation)
-    base_query = base_query.where(conversations: { cached_label_list: params[:label_list] }) if params[:label_list].present?
-    base_query = base_query.where(conversations: { assigned_agent_id: params[:user_ids] }) if params[:assigned_agent_id].present?
-    @sla_responses = filtrate(base_query).filter_by_created_at(range)
-                                         .filter_by_inbox_id(params[:inbox_id])
-                                         .filter_by_team_id(params[:team_id])
-                                         .filter_by_sla_policy_id(params[:sla_policy_id])
+    base_query = filter_by_label_list(base_query)
+    filter_by_assigned_agent_id(base_query)
+  end
+
+  def filter_by_label_list(query)
+    return query if params[:label_list].blank?
+
+    query.where(conversations: { cached_label_list: params[:label_list] })
+  end
+
+  def filter_by_assigned_agent_id(query)
+    return query if params[:assigned_agent_id].blank?
+
+    query.where(conversations: { assigned_agent_id: params[:user_ids] })
   end
 end