using HeuristicLab.Problems.RoutePlanning.Data.Core;
using HeuristicLab.Problems.RoutePlanning.Interfaces;
using HeuristicLab.Problems.RoutePlanning.Utilities;

namespace HeuristicLab.Problems.RoutePlanning.RoutingGraph {
  public class EarthDistanceCostCalculator : ICostCalculator {
    #region ICostCalculator Members

    public float Costs(Edge<Vertex> edge) {
      return edge.Weight;
    }

    public float CalculateCosts(Vertex source, Vertex destination, HighwayType category) {
      double distanceKms = Utils.LocationDistance(source.Logitude, source.Latitude,
                                            destination.Logitude, destination.Latitude);
      double weight = distanceKms;
      return (float)weight;
    }

    public float EstimatedCosts(Vertex source, Vertex destination) {
      double distanceKms = Utils.LocationDistance(source.Logitude, source.Latitude,
                                            destination.Logitude, destination.Latitude);
      double weight = distanceKms;
      return (float)weight;
    }

    #endregion
  }
}