package application.model
  
  import kotlin.properties.Delegates
  
  class ObservableState {
      val listeners: MutableList<StateListener> = mutableListOf()
  
      var state: State by Delegates.observable(
          initialValue = State.CLUSTERED_MESSAGES,
          onChange = { _, _, new ->
              run {
                  listeners.forEach {
                      it.onValueChanged(new)
                  }
              }
          }
      )
  }