/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2015-     Statoil ASA
//  Copyright (C) 2015-     Ceetron Solutions AS
// 
//  ResInsight 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.
// 
//  ResInsight 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 at <http://www.gnu.org/licenses/gpl.html> 
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#include "RicDeleteItemFeature.h"
#include "RicDeleteItemExec.h"
#include "RicDeleteItemExecData.h"

#include "RimWellLogPlot.h"
#include "RimWellLogPlotTrack.h"

#include "cafCmdExecCommandManager.h"
#include "cafCmdSelectionHelper.h"
#include "cafPdmChildArrayField.h"
#include "cafPdmField.h"
#include "cafPdmReferenceHelper.h"
#include "cafSelectionManager.h"

#include <QAction>

namespace caf
{
    CAF_CMD_SOURCE_INIT(RicDeleteItemFeature, "RicDeleteItemFeature");


//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
bool RicDeleteItemFeature::isCommandEnabled() 
{
    caf::PdmObject* currentPdmObject = dynamic_cast<caf::PdmObject*>(caf::SelectionManager::instance()->selectedItem());
    if (!currentPdmObject) return false;

    caf::PdmChildArrayFieldHandle* childArrayFieldHandle = dynamic_cast<caf::PdmChildArrayFieldHandle*>(currentPdmObject->parentField());
    if (!childArrayFieldHandle) return false;

    if (dynamic_cast<RimWellLogPlotTrack*>(currentPdmObject))
    {
        RimWellLogPlotTrack* plotTrack = dynamic_cast<RimWellLogPlotTrack*>(currentPdmObject);
        RimWellLogPlot* wellLogPlot;
        plotTrack->firstAnchestorOrThisOfType(wellLogPlot);
        if (wellLogPlot)
        {
            if (wellLogPlot->trackCount() < 2)
            {
                return false;
            }
        }
    }

    return true;
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RicDeleteItemFeature::onActionTriggered(bool isChecked)
{
    std::vector<PdmUiItem*> items;
    SelectionManager::instance()->selectedItems(items);
    assert(items.size() > 0);

    caf::PdmObject* currentPdmObject = dynamic_cast<caf::PdmObject*>(items[0]);
    assert(currentPdmObject);

    caf::PdmChildArrayFieldHandle* childArrayFieldHandle = dynamic_cast<caf::PdmChildArrayFieldHandle*>(currentPdmObject->parentField());

    int indexAfter = -1;

    std::vector<PdmObjectHandle*> childObjects;
    childArrayFieldHandle->childObjects(&childObjects);

    for (size_t i = 0; i < childObjects.size(); i++)
    {
        if (childObjects[i] == currentPdmObject)
        {
            indexAfter = static_cast<int>(i);
        }
    }

    // Did not find currently selected pdm object in the current list field
    assert(indexAfter != -1);

    RicDeleteItemExec* executeCmd = new RicDeleteItemExec(SelectionManager::instance()->notificationCenter());

    RicDeleteItemExecData* data = executeCmd->commandData();
    data->m_rootObject = PdmReferenceHelper::findRoot(childArrayFieldHandle);
    data->m_pathToField = PdmReferenceHelper::referenceFromRootToField(data->m_rootObject, childArrayFieldHandle);
    data->m_indexToObject = indexAfter;


    CmdExecCommandManager::instance()->processExecuteCommand(executeCmd);
}

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
void RicDeleteItemFeature::setupActionLook(QAction* actionToSetup)
{
    actionToSetup->setText("Delete");
}

} // end namespace caf