use MarkPositionCacheAtTimePoint also for target time estimation

Change-Id: Ia496ea6eeac44cb8adde7de5d065a5b155c56c0f

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/TrackedLeg.java

@@ -164,7 +164,8 @@ public interface TrackedLeg extends Serializable {
      * is not available
      * @throws NoWindException no wind available. unable to determine legtypes for given timepoint
      */
-    Duration getEstimatedTimeToComplete(PolarDataService polarDataService, TimePoint timepoint) throws NotEnoughDataHasBeenAddedException, NoWindException;
+    Duration getEstimatedTimeToComplete(PolarDataService polarDataService, TimePoint timepoint, MarkPositionAtTimePointCache markPositionCache)
+            throws NotEnoughDataHasBeenAddedException, NoWindException;
 
     /**
      * Computes the windward distance (for upwind/downwind legs) or the along-course distance (for reaching legs) at a reference time point

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/TrackedLegImpl.java

@@ -513,8 +513,10 @@ public class TrackedLegImpl implements TrackedLeg {
     }
 
     @Override
-    public Duration getEstimatedTimeToComplete(PolarDataService polarDataService, TimePoint timepoint)
+    public Duration getEstimatedTimeToComplete(PolarDataService polarDataService, TimePoint timepoint, MarkPositionAtTimePointCache markPositionCache)
             throws NotEnoughDataHasBeenAddedException, NoWindException {
+        assert timepoint.equals(markPositionCache.getTimePoint());
+        assert getTrackedRace() == markPositionCache.getTrackedRace();
         Position centralPosition = trackedRace.getCenterOfCourse(timepoint);
         Wind wind = trackedRace.getWind(centralPosition, timepoint, getTrackedRace().getWindSources(WindSourceType.TRACK_BASED_ESTIMATION));
         Position from = trackedRace.getApproximatePosition(leg.getFrom(), timepoint);

java/com.sap.sailing.domain/src/com/sap/sailing/domain/tracking/impl/TrackedRaceImpl.java

@@ -3896,8 +3896,9 @@ public abstract class TrackedRaceImpl extends TrackedRaceWithWindEssentials impl
             throw new NotEnoughDataHasBeenAddedException("Target time estimation failed. No polar service available.");
         }
         Duration durationOfAllLegs = Duration.NULL;
+        final MarkPositionAtTimePointCache markPositionCache = new MarkPositionAtTimePointCacheImpl(this, timepoint);
         for (TrackedLeg leg : trackedLegs.values()) {
-            Duration durationOfLeg = leg.getEstimatedTimeToComplete(polarDataService, timepoint);
+            Duration durationOfLeg = leg.getEstimatedTimeToComplete(polarDataService, timepoint, markPositionCache);
             durationOfAllLegs = durationOfAllLegs.plus(durationOfLeg);
         }
         return durationOfAllLegs;