#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.Collections.Generic;
using System.Linq;
using HeuristicLab.DataImporter.Data.CommandBase;
using HeuristicLab.DataImporter.Data.Model;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.DataImporter.Data.Command {
  [StorableClass]
  public class DeleteRowsCommand : ColumnGroupCommandBase {
    [Storable]
    private List<int> rowIndexes;

    private List<IComparable[]> oldrows;

    [StorableConstructor]
    protected DeleteRowsCommand(bool deserializing) : base(deserializing) { }

    public DeleteRowsCommand(DataSet dataSet, string columnGroupName, IEnumerable<int> rowIndexes)
      : base(dataSet, columnGroupName) {
      this.rowIndexes = new List<int>(rowIndexes);
      this.oldrows = new List<IComparable[]>();
    }

    public override void Execute() {
      base.Execute();
      foreach (int pos in this.rowIndexes.Reverse<int>()) {
        oldrows.Insert(0, ColumnGroup.GetRow(pos));
        ColumnGroup.DeleteRow(pos);
      }
      ColumnGroup.FireChanged();
      this.ColumnGroup = null;
    }

    public override void UndoExecute() {
      base.UndoExecute();
      for (int i = 0; i < rowIndexes.Count; i++)
        ColumnGroup.InsertRow(this.rowIndexes[i], this.oldrows[i]);
      oldrows.Clear();
      ColumnGroup.FireChanged();
      this.ColumnGroup = null;
    }

    public override string Description {
      get { return "Delete Rows"; }
    }
  }
}