using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using HeuristicLab.Core;
using HeuristicLab.Problems.TravelingSalesman;

namespace HeuristicLab.Services.Optimization.ControllerService.Parameters.HL {
  public class PathTSPParameterHandler : IParameterHandler<IItem> {
    public Type HandledType {
      get {
        return typeof(PathTSPTour);
      }
    }

    public Model.Parameter Map(IItem item) {
      var tour = item as PathTSPTour;
      var parameter = new Model.Parameter();
      var resultMatrix = new Model.DecimalMatrix();
      // simply create a matrix which contains all the coordinates in correct order
      // the client may now display them as table
      double[][] matrix = new double[tour.Permutation.Length][];
      
      for (var i=0; i < tour.Permutation.Length; i++) {
        matrix[i] = new double[2];
        matrix[i][0] = tour.Coordinates[tour.Permutation[i], 0];
        matrix[i][1] = tour.Coordinates[tour.Permutation[i], 1];
      }
      parameter.Value = new Model.DecimalMatrix() { Value = matrix };
      return parameter;
    }
  }
}