/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */

package akka.remote.serialization

import language.postfixOps

import akka.serialization.SerializationExtension
import com.typesafe.config.ConfigFactory
import akka.testkit.AkkaSpec
import akka.actor.{ Actor, Address, Props, Deploy, OneForOneStrategy, SupervisorStrategy }
import akka.remote.{ DaemonMsgCreate, RemoteScope }
import akka.routing.{ RoundRobinPool, FromConfig }
import scala.concurrent.duration._

object DaemonMsgCreateSerializerSpec {
  class MyActor extends Actor {
    def receive = Actor.emptyBehavior
  }

  class MyActorWithParam(ignore: String) extends Actor {
    def receive = Actor.emptyBehavior
  }
}

@org.junit.runner.RunWith(classOf[org.scalatest.junit.JUnitRunner])
class DaemonMsgCreateSerializerSpec extends AkkaSpec {

  import DaemonMsgCreateSerializerSpec._
  val ser = SerializationExtension(system)
  val supervisor = system.actorOf(Props[MyActor], "supervisor")

  "Serialization" must {

    "resolve DaemonMsgCreateSerializer" in {
      ser.serializerFor(classOf[DaemonMsgCreate]).getClass should ===(classOf[DaemonMsgCreateSerializer])
    }

    "serialize and de-serialize DaemonMsgCreate with FromClassCreator" in {
      verifySerialization {
        DaemonMsgCreate(
          props = Props[MyActor],
          deploy = Deploy(),
          path = "foo",
          supervisor = supervisor)
      }
    }

    "serialize and de-serialize DaemonMsgCreate with FromClassCreator, with null parameters for Props" in {
      verifySerialization {
        DaemonMsgCreate(
          props = Props(classOf[MyActorWithParam], null),
          deploy = Deploy(),
          path = "foo",
          supervisor = supervisor)
      }
    }

    "serialize and de-serialize DaemonMsgCreate with function creator" in {
      verifySerialization {
        DaemonMsgCreate(
          props = Props(new MyActor),
          deploy = Deploy(),
          path = "foo",
          supervisor = supervisor)
      }
    }

    "serialize and de-serialize DaemonMsgCreate with Deploy and RouterConfig" in {
      verifySerialization {
        // Duration.Inf doesn't equal Duration.Inf, so we use another for test
        val supervisorStrategy = OneForOneStrategy(3, 10 seconds) {
          case _ ⇒ SupervisorStrategy.Escalate
        }
        val deploy1 = Deploy(
          path = "path1",
          config = ConfigFactory.parseString("a=1"),
          routerConfig = RoundRobinPool(nrOfInstances = 5, supervisorStrategy = supervisorStrategy),
          scope = RemoteScope(Address("akka", "Test", "host1", 1921)),
          dispatcher = "mydispatcher")
        val deploy2 = Deploy(
          path = "path2",
          config = ConfigFactory.parseString("a=2"),
          routerConfig = FromConfig,
          scope = RemoteScope(Address("akka", "Test", "host2", 1922)),
          dispatcher = Deploy.NoDispatcherGiven)
        DaemonMsgCreate(
          props = Props[MyActor].withDispatcher("my-disp").withDeploy(deploy1),
          deploy = deploy2,
          path = "foo",
          supervisor = supervisor)
      }
    }

    def verifySerialization(msg: DaemonMsgCreate): Unit = {
      assertDaemonMsgCreate(msg, ser.deserialize(ser.serialize(msg).get, classOf[DaemonMsgCreate]).get.asInstanceOf[DaemonMsgCreate])
    }

    def assertDaemonMsgCreate(expected: DaemonMsgCreate, got: DaemonMsgCreate): Unit = {
      // can't compare props.creator when function
      got.props.clazz should ===(expected.props.clazz)
      got.props.args.length should ===(expected.props.args.length)
      got.props.args zip expected.props.args foreach {
        case (g, e) ⇒
          if (e.isInstanceOf[Function0[_]]) ()
          else g should ===(e)
      }
      got.props.deploy should ===(expected.props.deploy)
      got.deploy should ===(expected.deploy)
      got.path should ===(expected.path)
      got.supervisor should ===(expected.supervisor)
    }

  }
}