import akka.actor.{ ActorRef, ActorSystem, Props, Actor, Inbox }
import scala.concurrent.Future
import scala.concurrent.ExecutionContext.Implicits.global

case class TestRange(candidate: Long, start: Long, stop: Long)
case class FinishedNoneFound(start: Long, stop: Long)
case class Found(divisor: Long)

class TesterWorker extends Actor {
  def receive = {
    case TestRange(candidate, start, stop) => {
      println(s"testing range ${start} to ${stop}")
      val originalSender = sender
      val futResult = Future { (start to stop) find (d => (candidate % d) == 0) }

      futResult map {
        case None => originalSender ! FinishedNoneFound(start, stop)
        case Some(d) => originalSender ! Found(d)
      }
    }
  }
}