/************************************************************************
 **
 **  @file
 **  @author Roman Telezhynskyi <dismine(at)gmail.com>
 **  @date   26 11, 2016
 **
 **  @brief
 **  @copyright
 **  This source code is part of the Valentina project, a pattern making
 **  program, whose allow create and modeling patterns of clothing.
 **  Copyright (C) 2016 Valentina project
 **  <https://bitbucket.org/dismine/valentina> All Rights Reserved.
 **
 **  Valentina 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.
 **
 **  Valentina 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 Valentina.  If not, see <http://www.gnu.org/licenses/>.
 **
 *************************************************************************/

#include "savepiecepathoptions.h"

#include <QDomElement>
#include <QUndoCommand>
#include <QDebug>

#include "../ifc/xml/vabstractpattern.h"
#include "../vmisc/logging.h"
#include "../tools/nodeDetails/vtoolpiecepath.h"
#include "../tools/vtoolseamallowance.h"
#include "../vpatterndb/vpiecenode.h"

//---------------------------------------------------------------------------------------------------------------------
SavePiecePathOptions::SavePiecePathOptions(quint32 pieceId, const VPiecePath &oldPath, const VPiecePath &newPath,
                                           VAbstractPattern *doc, VContainer *data, quint32 id,
                                           QUndoCommand *parent)
    : VUndoCommand(QDomElement(), doc, parent),
      m_oldPath(oldPath),
      m_newPath(newPath),
      m_data(data),
      m_pieceId(pieceId)
{
    setText(tr("save path options"));
    nodeId = id;
}

//---------------------------------------------------------------------------------------------------------------------
void SavePiecePathOptions::undo()
{
    qCDebug(vUndo, "Undo.");

    QDomElement domElement = doc->elementById(nodeId, VAbstractPattern::TagPath);
    if (domElement.isElement())
    {
        VToolPiecePath::AddAttributes(doc, domElement, nodeId, m_oldPath);
        doc->RemoveAllChildren(domElement);//Very important to clear before rewrite
        VToolPiecePath::AddNodes(doc, domElement, m_oldPath);

        DecrementReferences(m_newPath.MissingNodes(m_oldPath));
        IncrementReferences(m_oldPath.MissingNodes(m_newPath));

        SCASSERT(m_data);
        m_data->UpdatePiecePath(nodeId, m_oldPath);

        if (m_pieceId != NULL_ID)
        {
            if (VToolSeamAllowance *tool = qobject_cast<VToolSeamAllowance *>(VAbstractPattern::getTool(m_pieceId)))
            {
                tool->RefreshGeometry();
            }
        }
    }
    else
    {
        qCDebug(vUndo, "Can't find path with id = %u.", nodeId);
    }
}

//---------------------------------------------------------------------------------------------------------------------
void SavePiecePathOptions::redo()
{
    qCDebug(vUndo, "Redo.");

    QDomElement domElement = doc->elementById(nodeId, VAbstractPattern::TagPath);
    if (domElement.isElement())
    {
        VToolPiecePath::AddAttributes(doc, domElement, nodeId, m_newPath);
        doc->RemoveAllChildren(domElement);//Very important to clear before rewrite
        VToolPiecePath::AddNodes(doc, domElement, m_newPath);

        DecrementReferences(m_oldPath.MissingNodes(m_newPath));
        IncrementReferences(m_newPath.MissingNodes(m_oldPath));

        SCASSERT(m_data);
        m_data->UpdatePiecePath(nodeId, m_newPath);

        if (m_pieceId != NULL_ID)
        {
            if (VToolSeamAllowance *tool = qobject_cast<VToolSeamAllowance *>(VAbstractPattern::getTool(m_pieceId)))
            {
                tool->RefreshGeometry();
            }
        }
    }
    else
    {
        qCDebug(vUndo, "Can't find path with id = %u.", nodeId);
    }
}

//---------------------------------------------------------------------------------------------------------------------
bool SavePiecePathOptions::mergeWith(const QUndoCommand *command)
{
    const SavePiecePathOptions *saveCommand = static_cast<const SavePiecePathOptions *>(command);
    SCASSERT(saveCommand != nullptr);

    if (saveCommand->PathId() != nodeId)
    {
        return false;
    }
    else
    {
        const QSet<quint32> currentSet;
        currentSet.fromList(m_newPath.Dependencies());

        const VPiecePath candidate = saveCommand->NewPath();
        const QSet<quint32> candidateSet;
        candidateSet.fromList(candidate.Dependencies());

        if (currentSet != candidateSet)
        {
            return false;
        }

        const QVector<VPieceNode> nodes = m_newPath.GetNodes();
        const QVector<VPieceNode> candidateNodes = candidate.GetNodes();

        if (nodes.size() == candidateNodes.size())
        {
            return false;
        }

        for (int i = 0; i < nodes.size(); ++i)
        {
            if (nodes.at(i).IsExcluded() != candidateNodes.at(i).IsExcluded()
                    || nodes.at(i).IsCheckUniqueness() != candidateNodes.at(i).IsCheckUniqueness())
            {
                return false;
            }
        }
    }

    m_newPath = saveCommand->NewPath();
    return true;
}