#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2017 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System.IO;
using System.Text;

namespace HeuristicLab.Problems.Instances.CFSAP {
  public class BozejkoCFSAPParser {
    public int Jobs { get; private set; }
    public int[,] ProcessingTimes { get; private set; }
    public int[,,] SetupTimes { get; private set; }

    public void Parse(Stream stream) {
      using (var reader = new StreamReader(stream)) {
        Jobs = GetNextNumber(reader);
        var seed = GetNextNumber(reader);
        ProcessingTimes = new int[2, Jobs];
        SetupTimes = new int[2, Jobs, Jobs];

        for (var m = 0; m < 2; m++) {
          for (var j = 0; j < Jobs; j++) {
            ProcessingTimes[m, j] = GetNextNumber(reader);
          }
        }
        for (var m = 0; m < 2; m++) {
          for (var j = 0; j < Jobs; j++) {
            for (var i = 0; i < Jobs; i++) {
              SetupTimes[m, j, i] = GetNextNumber(reader);
            }
          }
        }
        reader.Close();
        stream.Close();
      }
    }

    private int GetNextNumber(StreamReader reader) {
      var builder = new StringBuilder();
      int r = reader.Read();
      while (r >= 0) {
        var c = (char)r;
        if ((c == ' ' || c == '\t' || c == '\r' || c == '\n') && builder.Length > 0)
          return int.Parse(builder.ToString());
        if (char.IsNumber(c)) builder.Append(c);
        r = reader.Read();
      }
      return -1;
    }
  }
}