#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2013 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;
using System.IO;
using System.Linq;
using System.Text;
using HeuristicLab.Algorithms.OffspringSelectionGeneticAlgorithm;
using HeuristicLab.MainForm.WindowsForms;
using HeuristicLab.Optimization;
using HeuristicLab.Problems.GPDL.CodeGen;
using HeuristicLab.Problems.Instances;
using HeuristicLab.Problems.Instances.Views;

namespace HeuristicLab.Problems.GPDL.Views {
  public partial class GpdlEditor : AsynchronousContentView, IProblemInstanceConsumer<string> {
    public GpdlEditor() {
      InitializeComponent();

      viewHost.Content = null; //necessary to enable the change of the ViewType
      viewHost.ViewType = typeof(GpdlProblemInstanceConsumerView);
      viewHost.Content = this;
    }

    private void compileButton_Click(object sender, EventArgs e) {

      using (var src = new MemoryStream(Encoding.UTF8.GetBytes(codeEditor.textEditor.Text))) {
        Scanner scanner = new Scanner(src);
        Parser parser = new Parser(scanner);
        parser.Parse();

        // generate an OSGA to solve the problem
        var osga = new OffspringSelectionGeneticAlgorithm();
        var problemGenerator = new ProblemGenerator();
        osga.Problem = problemGenerator.GenerateFromAst(parser.AbstractSyntaxTree);
        osga.Engine = new SequentialEngine.SequentialEngine();
        osga.PopulationSize.Value = 500;
        osga.MutationProbability.Value = 0.15;
        osga.ComparisonFactorUpperBound.Value = 1.0;
        osga.ComparisonFactorLowerBound.Value = 1.0;
        osga.MutatorParameter.Value =
          osga.MutatorParameter.ValidValues.First(o => o.Name.Contains("MultiSymbolicExpressionTreeManipulator"));
        osga.SelectorParameter.Value =
          osga.SelectorParameter.ValidValues.First(o => o.Name.Contains("GenderSpecific"));
        osga.MaximumSelectionPressure.Value = 500;
        osga.MaximumGenerations.Value = 100;
        MainForm.MainFormManager.MainForm.ShowContent(osga);
      }

      codeEditor.ClearErrors();

      // TODO adapt to Coco/R error handling to show errors in the GUI

      //if (Errors.NumOfErrors() == 0) {
      //  GPDefLex.InitLex();
      //  GPDefSyn.Interpret();

      //} else {
      //  int nLexErrors = Errors.NumOfLexErrors();
      //  for (int i = 0; i < nLexErrors; i++) {
      //    var lexErr = Errors.GetLexError(i == 0);
      //    codeEditor.SetLexError(lexErr.msg, lexErr.line, lexErr.col);
      //  }
      //  int nSynErrors = Errors.NumOfSynErrors();
      //  for (int i = 0; i < nSynErrors; i++) {
      //    var synErr = Errors.GetSynError(i == 0);
      //    codeEditor.SetLexError(synErr.msg, synErr.line, synErr.col);
      //  }
      //}
    }


    void IProblemInstanceConsumer<string>.Load(string data) {
      codeEditor.textEditor.Text = data;
    }
  }
}