require 'active_support/core_ext/module/attr_internal'

module MongoModel
  module Railties
    module ControllerRuntime
      extend ActiveSupport::Concern

    protected
      attr_internal :db_runtime

      def cleanup_view_runtime
        db_rt_before_render = MongoModel::LogSubscriber.reset_runtime
        runtime = super
        db_rt_after_render = MongoModel::LogSubscriber.reset_runtime
        self.db_runtime = db_rt_before_render + db_rt_after_render
        runtime - db_rt_after_render
      end

      def append_info_to_payload(payload)
        super
        payload[:db_runtime] = db_runtime
      end

      module ClassMethods
        def log_process_action(payload)
          messages, db_runtime = super, payload[:db_runtime]
          messages << ("MongoModel: %.1fms" % db_runtime.to_f) if db_runtime
          messages
        end
      end
    end
  end
end