import akka.actor._
import scala.util.Random

//The messages which can be exchanged
sealed trait Move
case object StartMessage extends Move
case object StopMessage extends Move
case object Fine extends Move
case object Good extends Move
case object Bad extends Move

//The general class representing my actors
abstract class MyActor(val others: List[String]) extends Actor{ 
	//its name
	val name=self.path.name
	
	//it knows to choose on interlocutor
	val interlocteur=Random.shuffle(others.filterNot(p=> p==name)).head
	
	//All the actors are able to interpret the start/stop messages
	def metaReceive : Receive= {
	    case StartMessage =>//start to ask question
    		println(name+" send Fine? to "+interlocteur)
    		context.actorSelection("../"+interlocteur) ! Fine
    	case StopMessage =>
    		println(name+" stops")
			context.stop(self)
  }
}

//An optimistic actor says it is fine
trait Optimistic{
  self: MyActor =>
  def handleFine:Receive = {
    case Fine => 
    	println(self.name+" replies Good to "+sender)
    	sender ! Good	
  }  
}

//A pessimistic actor says it is not fine
trait Pessimistic{
  self: MyActor =>
  def handleFine:Receive = {
    case Fine => 
    	println(self.name+" replies Bad to "+sender)
    	sender ! Good	
  }  
}

//An interpretor is an actor which is able to understand the reply
trait Interpretor{
  self: MyActor =>
  def handleAnswer:Receive = {
      	case Good =>
    		println(name+" receives Good from "+sender)
    		sender ! StopMessage
   	case Bad =>
    		println(name+" receives Bad from "+sender)
    		sender ! StopMessage
  }  
}

//My basic classes
class MyOptimisticActor(others: List[String]) extends  MyActor(others) with Optimistic{
  override def receive = metaReceive orElse handleFine //orElse ...
}

class MyPessimisticActor(others: List[String]) extends  MyActor(others) with Pessimistic{
  override def receive = metaReceive orElse handleFine //orElse ...
}
class MyInterpretorActor(others: List[String]) extends  MyActor(others) with Interpretor{
  override def receive = metaReceive orElse handleAnswer
}

//My application
object TestStrategies extends Application {
  val system = ActorSystem("StrategiesSystem")
  val names= List("alice","bob","carla")
  val alice = system.actorOf(Props(new MyInterpretorActor(names)), name = "alice")// alice is able to ask question and interpret answer
  val bob = system.actorOf(Props(new MyOptimisticActor(names)), name = "bob") // bob is able to reply and it is fine
  val carla = system.actorOf(Props(new MyPessimisticActor(names)), name = "carla") //carla is able to reply and it is not fine
  alice ! StartMessage //alice must ask a question
}