package org.opentrafficsim.road.network.lane;
   
   import javax.naming.NamingException;
   
   import org.djunits.unit.AccelerationUnit;
   import org.djunits.unit.DirectionUnit;
   import org.djunits.unit.DurationUnit;
   import org.djunits.unit.LengthUnit;
   import org.djunits.unit.SpeedUnit;
  import org.djunits.value.vdouble.scalar.Acceleration;
  import org.djunits.value.vdouble.scalar.Direction;
  import org.djunits.value.vdouble.scalar.Duration;
  import org.djunits.value.vdouble.scalar.Length;
  import org.djunits.value.vdouble.scalar.Speed;
  import org.junit.Test;
  import org.opentrafficsim.core.dsol.OTSSimulatorInterface;
  import org.opentrafficsim.core.geometry.OTSGeometryException;
  import org.opentrafficsim.core.geometry.OTSLine3D;
  import org.opentrafficsim.core.geometry.OTSPoint3D;
  import org.opentrafficsim.core.gtu.GTUException;
  import org.opentrafficsim.core.gtu.GTUType;
  import org.opentrafficsim.core.network.NetworkException;
  import org.opentrafficsim.road.car.CarTest;
  import org.opentrafficsim.road.gtu.lane.LaneBasedIndividualGTU;
  import org.opentrafficsim.road.gtu.lane.tactical.following.FixedAccelerationModel;
  import org.opentrafficsim.road.gtu.lane.tactical.lanechangemobil.FixedLaneChangeModel;
  import org.opentrafficsim.road.network.OTSRoadNetwork;
  import org.opentrafficsim.road.network.factory.LaneFactory;
  
  import nl.tudelft.simulation.dsol.SimRuntimeException;
  import nl.tudelft.simulation.dsol.formalisms.eventscheduling.SimEventInterface;
  import nl.tudelft.simulation.dsol.simtime.SimTimeDoubleUnit;
  import nl.tudelft.simulation.dsol.simulators.DEVSSimulatorInterface;
  
  /**
   * Verify that GTUs register and unregister at the correct times and locations when following a curve.
   * <p>
   * Copyright (c) 2013-2020 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/docs/current/license.html">OpenTrafficSim License</a>.
   * <p>
   * @version $Revision$, $LastChangedDate$, by $Author$, initial version Jan 15, 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.citg.tudelft.nl">Guus Tamminga</a>
   */
  public class CurveTest
  {
  
      /**
       * Let GTUs drive through a curve and check (de-)registration times at each node.
       * @throws OTSGeometryException on error
       * @throws NamingException on error
       * @throws SimRuntimeException on error
       * @throws NetworkException on error
       * @throws GTUException on error
       */
      @Test
      public final void curveTest()
              throws OTSGeometryException, SimRuntimeException, NamingException, NetworkException, GTUException
      {
          final int laneCount = 1;
          OTSSimulatorInterface simulator = CarTest.makeSimulator();
          OTSRoadNetwork network = new OTSRoadNetwork("curve test network", true, simulator);
          GTUType gtuType = network.getGtuType(GTUType.DEFAULTS.CAR);
          LaneType laneType = network.getLaneType(LaneType.DEFAULTS.TWO_WAY_LANE);
          Speed speedLimit = new Speed(50, SpeedUnit.KM_PER_HOUR);
          OTSRoadNode origin = new OTSRoadNode(network, "origin", new OTSPoint3D(10, 10, 0), Direction.ZERO);
          OTSRoadNode curveStart = new OTSRoadNode(network, "curveStart", new OTSPoint3D(100, 10, 0), Direction.ZERO);
          OTSRoadNode curveEnd = new OTSRoadNode(network, "curveEnd", new OTSPoint3D(150, 60, 0), 
                  new Direction(90, DirectionUnit.EAST_DEGREE));
          OTSRoadNode destination = new OTSRoadNode(network, "destination", new OTSPoint3D(150, 150, 0),
                  new Direction(90, DirectionUnit.EAST_DEGREE));
          Lane[] straight1 = LaneFactory.makeMultiLane(network, "straight1", origin, curveStart, null, laneCount, laneType,
                  speedLimit, simulator);
          Lane[] straight2 = LaneFactory.makeMultiLane(network, "straight2", curveEnd, destination, null, laneCount, laneType,
                  speedLimit, simulator);
          OTSLine3D curveLine = LaneFactory.makeBezier(origin, curveStart, curveEnd, destination);
          Lane[] curve = LaneFactory.makeMultiLane(network, "bezier", curveStart, curveEnd, curveLine.getPoints(), laneCount,
                  laneType, speedLimit, simulator);
          Lane[][] laneSets = new Lane[][] {straight1, curve, straight2};
          Length initialPosition = new Length(5, LengthUnit.METER);
          Speed speed = new Speed(10, SpeedUnit.SI);
          for (int lane = 0; lane < laneCount; lane++)
          {
              // System.out.println("Lane is " + lane);
              double cumulativeLength = 0;
              for (Lane[] set : laneSets)
              {
                  cumulativeLength += set[lane].getLength().si;
                  double timeAtEnd = simulator.getSimulatorTime().si + (cumulativeLength - initialPosition.si) / speed.si;
                  System.out.println("lane " + set[lane] + " length is " + set[lane].getLength()
                          + " time for reference to get to end " + timeAtEnd);
              }
              LaneBasedIndividualGTU car = CarTest.makeReferenceCar("car", gtuType, straight1[lane], initialPosition, speed,
                      simulator,
                      new FixedAccelerationModel(new Acceleration(0, AccelerationUnit.SI), new Duration(25, DurationUnit.SI)),
                      new FixedLaneChangeModel(null), (OTSRoadNetwork) network);
              printEventList(simulator);
              System.out.println("STEP");
             simulator.step();
             printEventList(simulator);
             System.out.println("STEP");
             simulator.step();
             printEventList(simulator);
             // TODO finish writing this test
         }
     }
 
     /**
      * Print all scheduled events of an DEVSSimulatorInterface.TimeDoubleUnit.
      * @param simulator DEVSSimulatorInterface.TimeDoubleUnit; the DEVSSimulatorInterface.TimeDoubleUnit
      */
     public final void printEventList(final DEVSSimulatorInterface.TimeDoubleUnit simulator)
     {
         for (SimEventInterface<SimTimeDoubleUnit> se : simulator.getEventList())
         {
             System.out.println("se: " + se);
         }
 
     }
 
 }