package au.gov.amsa.navigation;
   
   import java.util.Date;
   
   import com.github.davidmoten.grumpy.core.Position;
   
   public class CollisionCandidate {
   	private final VesselPosition p1;
   	private final VesselPosition p2;
  	private final long time;
  
  	public CollisionCandidate(VesselPosition p1, VesselPosition p2, long time) {
  		this.p1 = p1;
  		this.p2 = p2;
  		this.time = time;
  	}
  
  	public VesselPosition position1() {
  		return p1;
  	}
  
  	public VesselPosition position2() {
  		return p2;
  	}
  
  	public long time() {
  		return time;
  	}
  
  	@Override
  	public String toString() {
  		return "CollisionCandidate [\np1=" + p1 + ", \np2=" + p2
  				+ ", \ncollisionTime=" + new Date(time) + "\nseparationKm="
  				+ separationKm() + "]";
  	}
  
  	public double separationKm() {
  		return new Position(p1.lat(), p1.lon()).getDistanceToKm(new Position(p2
  				.lat(), p2.lon()));
  	}
  }