GetStatsRequestActor.scala

class GetStatsRequestActor(
    ctx: RequestContext,
    statsActor: ActorRef)(implicit override val json4sFormats: Formats)
  extends Actor
  with Json4sSupport {

  statsActor ! StatsActor.GetState

  context.setReceiveTimeout(2.seconds)

  override def receive = {
    case stats: Stats =>
      val rollsCounts = stats.rollsCounts
        .map(RollCount.tupled)
        .toSeq
        .sortBy(_.rollsCount)
        .reverse
      ctx.complete(StatsResponseData(rollsCounts))
      context stop self
    case ReceiveTimeout =>
      ctx.complete(StatusCodes.RequestTimeout)
      context stop self
  }

}