package org.opentrafficsim.demo.conflict;
   
   import static org.opentrafficsim.core.gtu.GTUType.VEHICLE;
   
   import java.awt.Dimension;
   import java.net.URL;
   import java.rmi.RemoteException;
   
   import javax.naming.NamingException;
  
  import org.djunits.unit.DurationUnit;
  import org.djunits.unit.LengthUnit;
  import org.djunits.value.vdouble.scalar.Duration;
  import org.djunits.value.vdouble.scalar.Length;
  import org.djunits.value.vdouble.scalar.Time;
  import org.djutils.io.URLResource;
  import org.opentrafficsim.core.animation.gtu.colorer.DefaultSwitchableGTUColorer;
  import org.opentrafficsim.core.dsol.AbstractOTSModel;
  import org.opentrafficsim.core.dsol.OTSAnimator;
  import org.opentrafficsim.core.dsol.OTSSimulatorInterface;
  import org.opentrafficsim.core.network.NetworkException;
  import org.opentrafficsim.core.network.OTSNetwork;
  import org.opentrafficsim.demo.conflict.TJunctionDemo.TJunctionModel;
  import org.opentrafficsim.draw.core.OTSDrawingException;
  import org.opentrafficsim.draw.road.TrafficLightAnimation;
  import org.opentrafficsim.road.network.factory.xml.XmlNetworkLaneParser;
  import org.opentrafficsim.road.network.lane.CrossSectionLink;
  import org.opentrafficsim.road.network.lane.Lane;
  import org.opentrafficsim.road.network.lane.conflict.ConflictBuilder;
  import org.opentrafficsim.road.network.lane.object.trafficlight.SimpleTrafficLight;
  import org.opentrafficsim.road.network.lane.object.trafficlight.TrafficLightColor;
  import org.opentrafficsim.swing.gui.OTSAnimationPanel;
  import org.opentrafficsim.swing.gui.OTSSimulationApplication;
  
  import nl.tudelft.simulation.dsol.SimRuntimeException;
  
  /**
   * <p>
   * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
   * <p>
   * @version $Revision$, $LastChangedDate$, by $Author$, initial version 11 dec. 2016 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
   */
  public class TJunctionDemo extends OTSSimulationApplication<TJunctionModel>
  {
      /** */
      private static final long serialVersionUID = 20161211L;
  
      /**
       * Create a T-Junction demo.
       * @param title String; the title of the Frame
       * @param panel OTSAnimationPanel; the tabbed panel to display
       * @param model TJunctionModel; the model
       * @throws OTSDrawingException on animation error
       */
      public TJunctionDemo(final String title, final OTSAnimationPanel panel, final TJunctionModel model)
              throws OTSDrawingException
      {
          super(model, panel);
      }
  
      /**
       * Main program.
       * @param args String[]; the command line arguments (not used)
       */
      public static void main(final String[] args)
      {
          demo(true);
      }
  
      /**
       * Start the demo.
       * @param exitOnClose boolean; when running stand-alone: true; when running as part of a demo: false
       */
      public static void demo(final boolean exitOnClose)
      {
          try
          {
              OTSAnimator simulator = new OTSAnimator();
              final TJunctionModel junctionModel = new TJunctionModel(simulator);
              simulator.initialize(Time.ZERO, Duration.ZERO, Duration.createSI(3600.0), junctionModel);
              OTSAnimationPanel animationPanel = new OTSAnimationPanel(junctionModel.getNetwork().getExtent(),
                      new Dimension(800, 600), simulator, junctionModel, DEFAULT_COLORER, junctionModel.getNetwork());
              TJunctionDemo app = new TJunctionDemo("T-Junction demo", animationPanel, junctionModel);
              app.setExitOnClose(exitOnClose);
          }
          catch (SimRuntimeException | NamingException | RemoteException | OTSDrawingException exception)
          {
              exception.printStackTrace();
          }
      }
  
      /**
       * The simulation model.
       */
      static class TJunctionModel extends AbstractOTSModel
     {
         /** */
         private static final long serialVersionUID = 20161211L;
 
         /** The network. */
         private OTSNetwork network;
 
         /**
          * @param simulator OTSSimulatorInterface; the simulator for this model
          */
         TJunctionModel(final OTSSimulatorInterface simulator)
         {
             super(simulator);
         }
 
         /** {@inheritDoc} */
         @Override
         public void constructModel() throws SimRuntimeException
         {
             try
             {
                 URL url = URLResource.getResource("/conflict/TJunction.xml");
                 XmlNetworkLaneParser nlp = new XmlNetworkLaneParser(this.simulator, new DefaultSwitchableGTUColorer());
                 this.network = nlp.build(url, false);
 
                 // add conflicts
                 // ((CrossSectionLink) this.network.getLink("SCEC")).setPriority(Priority.STOP);
                 // ((CrossSectionLink) this.network.getLink("SCWC")).setPriority(Priority.STOP);
                 ConflictBuilder.buildConflicts(this.network, VEHICLE, this.simulator,
                         new ConflictBuilder.FixedWidthGenerator(new Length(2.0, LengthUnit.SI)));
 
                 // add trafficlight after
                 Lane lane = ((CrossSectionLink) this.network.getLink("ECE")).getLanes().get(0);
                 SimpleTrafficLight trafficLight =
                         new SimpleTrafficLight("light", lane, new Length(50.0, LengthUnit.SI), this.simulator);
 
                 try
                 {
                     new TrafficLightAnimation(trafficLight, this.simulator);
                 }
                 catch (RemoteException | NamingException exception)
                 {
                     throw new NetworkException(exception);
                 }
                 trafficLight.setTrafficLightColor(TrafficLightColor.RED);
                 changePhase(trafficLight);
 
             }
             catch (Exception exception)
             {
                 exception.printStackTrace();
             }
         }
 
         /**
          * Changes color of traffic light.
          * @param trafficLight SimpleTrafficLight; traffic light
          * @throws SimRuntimeException scheduling error
          */
         private void changePhase(final SimpleTrafficLight trafficLight) throws SimRuntimeException
         {
             switch (trafficLight.getTrafficLightColor())
             {
                 case RED:
                 {
                     trafficLight.setTrafficLightColor(TrafficLightColor.GREEN);
                     this.simulator.scheduleEventRel(new Duration(30.0, DurationUnit.SECOND), this, this, "changePhase",
                             new Object[] { trafficLight });
                     break;
                 }
                 case YELLOW:
                 {
                     trafficLight.setTrafficLightColor(TrafficLightColor.RED);
                     this.simulator.scheduleEventRel(new Duration(56.0, DurationUnit.SECOND), this, this, "changePhase",
                             new Object[] { trafficLight });
                     break;
                 }
                 case GREEN:
                 {
                     trafficLight.setTrafficLightColor(TrafficLightColor.YELLOW);
                     this.simulator.scheduleEventRel(new Duration(4.0, DurationUnit.SECOND), this, this, "changePhase",
                             new Object[] { trafficLight });
                     break;
                 }
                 default:
                 {
                     //
                 }
             }
         }
 
         /** {@inheritDoc} */
         @Override
         public OTSNetwork getNetwork()
         {
             return this.network;
         }
 
     }
 }