package cz.cuni.amis.pogamut.ut2004.communication.translator.observer.state;
   
   import cz.cuni.amis.fsm.FSMState;
   import cz.cuni.amis.fsm.FSMTransition;
   import cz.cuni.amis.fsm.IFSMState;
   import cz.cuni.amis.pogamut.base.communication.messages.InfoMessage;
   import cz.cuni.amis.pogamut.base.communication.translator.event.IWorldChangeEvent;
   import cz.cuni.amis.pogamut.ut2004.communication.messages.gbinfomessages.PathList;
   import cz.cuni.amis.pogamut.ut2004.communication.messages.gbinfomessages.PathListEnd;
  import cz.cuni.amis.pogamut.ut2004.communication.messages.gbinfomessages.PathListStart;
  import cz.cuni.amis.pogamut.ut2004.communication.translator.TranslatorContext;
  import cz.cuni.amis.pogamut.ut2004.communication.translator.observer.support.ObserverListState;
  import cz.cuni.amis.pogamut.ut2004.communication.translator.shared.events.Path;
  
  /**
   * Takes care of the path list. It stores them inside a List object and when END message comes it sends
   * them to the world view via Path event.
   * @author Jimmy
   */
  @FSMState(map = {
  					@FSMTransition(
  							state = ObserverRunningState.class,
  							symbol = {PathListEnd.class },
  							transition = {}
  					)
  				}
  )
  public class PathAcceptState extends ObserverListState<PathList, TranslatorContext> {
  
      private String pathId = null;
  
  	public PathAcceptState() {
  		super(PathListStart.class, PathList.class, PathListEnd.class);
  	}
  
      @Override
  	public void stateEntering(TranslatorContext context, IFSMState<InfoMessage, TranslatorContext> fromState, InfoMessage symbol) {
          super.stateEntering(context, fromState, symbol);
          pathId = ((PathListStart)symbol).getMessageId();
      }
  
  	@Override
  	public void stateLeaving(TranslatorContext context, IFSMState<InfoMessage, TranslatorContext> toState, InfoMessage symbol) {
  		super.stateLeaving(context, toState, symbol);
  		long simTime = 
  			(symbol instanceof IWorldChangeEvent ? ((IWorldChangeEvent)symbol).getSimTime() : 0);
  		context.getEventQueue().pushEvent(new Path(pathId, getList(), simTime));
  		getList().clear();
  	}
  }