/* BEGIN software license
 *
 * msXpertSuite - mass spectrometry software suite
 * -----------------------------------------------
 * Copyright(C) 2009,...,2018 Filippo Rusconi
 *
 * http://www.msxpertsuite.org
 *
 * This file is part of the msXpertSuite project.
 *
 * The msXpertSuite project is the successor of the massXpert project. This
 * project now includes various independent modules:
 *
 * - massXpert, model polymer chemistries and simulate mass spectrometric data;
 * - mineXpert, a powerful TIC chromatogram/mass spectrum viewer/miner;
 *
 * This program 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.
 *
 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 *
 * END software license
 */


/////////////////////// Qt includes
#include <QDebug>


/////////////////////// Local includes
#include <massxpert/gui/CompositionTreeViewSortProxyModel.hpp>


namespace msXpSmassXpert
{

CompositionTreeViewSortProxyModel::CompositionTreeViewSortProxyModel(
  QObject *parent)
  : QSortFilterProxyModel(parent)
{
}


CompositionTreeViewSortProxyModel::~CompositionTreeViewSortProxyModel()
{
}


bool
CompositionTreeViewSortProxyModel::lessThan(const QModelIndex &left,
                                            const QModelIndex &right) const
{
  QVariant leftData  = sourceModel()->data(left);
  QVariant rightData = sourceModel()->data(right);

  if(leftData.type() == QVariant::Int)
    {
      int leftValue  = leftData.toInt();
      int rightValue = rightData.toInt();

      return (leftValue < rightValue);
    }
  if(leftData.type() == QVariant::Bool)
    {
      int leftValue  = leftData.toInt();
      int rightValue = rightData.toInt();

      return (leftValue < rightValue);
    }
  else if(leftData.type() == QVariant::Double)
    {
      bool ok = false;

      double leftValue = leftData.toDouble(&ok);
      Q_ASSERT(ok);
      double rightValue = rightData.toDouble(&ok);
      Q_ASSERT(ok);

      return (leftValue < rightValue);
    }

  if(leftData.type() == QVariant::String)
    {
      QString leftString  = leftData.toString();
      QString rightString = rightData.toString();

      return (QString::localeAwareCompare(leftString, rightString) < 0);
    }


  return true;
}

} // namespace msXpSmassXpert
