#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;
using System.Collections.Generic;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;

namespace HeuristicLab.DataImporter.Data.Model {
  [StorableClass]
  public class StringColumn : ColumnBase {
    [Storable]
    private List<string> values;

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

    public StringColumn(string columnName)
      : base(columnName) {
      this.values = new List<string>();
    }

    public StringColumn(string columnName, int capacity)
      : this(columnName) {
      this.values.Capacity = capacity;
    }

    public override Type DataType {
      get { return typeof(string); }
    }

    public override string ToString() {
      return base.ToString() + " <String>";
    }

    protected override IList Values {
      get { return this.values; }
    }

    public override void AddValue(IComparable value) {
      this.values.Add(CheckInput(value));
    }

    public override void AddValueOrNull(IComparable value) {
      if (value == null)
        this.values.Add(null);
      else
        this.values.Add(CheckInput(value.ToString()));
    }

    public override void InsertValue(int position, IComparable value) {
      this.values.Insert(position, CheckInput(value));
    }

    public override void ChangeValue(int position, IComparable value) {
      this.values[position] = CheckInput(value);
    }

    public override void ChangeValueOrNull(int position, IComparable value) {
      this.values[position] = CheckInput(value);
    }

    public override void ChangeValueOrLeaveOldValue(int position, IComparable value) {
      this.values[position] = CheckInput(value);
    }

    public override ColumnBase CreateCopyOfColumnWithoutValues() {
      return CreateCopyOfColumnWithoutValues(this.values.Capacity);
    }
    public override ColumnBase CreateCopyOfColumnWithoutValues(int capacity) {
      return new StringColumn(this.Name, capacity);
    }

    private string CheckInput(IComparable value) {
      if (value == null)
        return null;
      string tmp = value.ToString().Trim();
      if (string.IsNullOrEmpty(tmp))
        tmp = null;
      return tmp;
    }
  }
}