import java.util._

class Player(val name:String){

        private var money = 10000

        def removeMoney(cnt:Int) = {
                        if(money < cnt)
                                false
                        else{
                                money -= cnt
                                true
                        }
        }

        def addMoney(cnt:Int){
                       money += cnt
        }

        def getMoney = {
            // this synchronized
            money
        }
}

class SuperEvent {
        private val participants = new ArrayList[Player]
        private val limit = 10

        def register(player:Player){
                        if(player removeMoney 1000){ //wpisowe
                                if(participants.size == limit)
                                        unregister(participants.get(0))
                                participants add player

                        }
        }

        def getTotalMoney = {
            var money = 0
            participants foreach {
                pl => money += pl.getMoney
            }
            money
        }

        def unregister(player: Player){
                        if(participants contains player){
                                participants remove player
                                player addMoney 1000   // zwraca wpisowe
                        }
        }
}

class World{
        val players = new HashMap[Int, ObjRef[Player]]
        val event = new ObjRef[SuperEvent](new SuperEvent)
        def getPlayer(id:Int):ObjRef[Player] = {
                        players get id
        }
}
class RequestRegister{
        val world:World // wstrzykniete

        val playerId = 0 // przecytane z sieci

        def runImp{
                val eventRef = world.event
                val playerRef = world.getPlayer(playerId)
                TaskExecutor.executeTask(eventRef, playerRef, toDo)
        }
        def toDo(event:SuperEvent, player:Player) {
                val result = event register player
                result match {
                    case true, money:Int => player.sendMessage("Udalo ci sie zarajestrowac a wszyscy maja w sumie "+money+" kasy")
                    case false => player.sendMessage("Nie udalo ci sie zarejestrowac")
                }
        }
}

class RequestUnRegister{
        val world:World // wstrzykniete

        val playerId = 0 // przecytane z sieci

        def runImp{
                val eventRef = world.event
                val playerRef = world.getPlayer(playerId)
                TaskExecutor.executeTask(eventRef, playerRef, toDo)

        }
        def toDo(event:SuperEvent, player:Player) {
               event unregister player
        }
}

class RequestDisplayMoneyInEvent{
        val world:World // wstrzykniete

        val playerId = 0 // przecytane z sieci

        def runImp{
                val eventRef = world.event
                val playerRef = world.getPlayer(playerId)
                //chce wyslac do player wynik event.getTotalMoney

        }

}