/****************************************************************************
 Copyright (C) 2010-2012 the Office National des Forêts (ONF), France
                         All rights reserved.

 Contact : alexandre.piboule@onf.fr

 Developers : Alexandre PIBOULE (ONF)

 This file is part of PluginONF library.

 PluginONF is free library: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 PluginONF 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 Lesser General Public License
 along with PluginONF.  If not, see <http://www.gnu.org/licenses/lgpl.html>.
*****************************************************************************/

#include "onf_steprefpointfromarccenter.h"

#include "ct_itemdrawable/tools/pointclustertools/ct_polylinesalgorithms.h"

ONF_StepRefPointFromArcCenter::ONF_StepRefPointFromArcCenter() : SuperClass()
{
}

QString ONF_StepRefPointFromArcCenter::description() const
{
    return tr("Créer des points de référence à partir d'arcs");
}

QString ONF_StepRefPointFromArcCenter::detailledDescription() const
{
    return tr("");
}

QString ONF_StepRefPointFromArcCenter::inputDescription() const
{
    return SuperClass::inputDescription() + tr("<br><br>");
}

QString ONF_StepRefPointFromArcCenter::outputDescription() const
{
    return SuperClass::outputDescription() + tr("<br><br>");
}

QString ONF_StepRefPointFromArcCenter::detailsDescription() const
{
    return tr("");
}

CT_VirtualAbstractStep* ONF_StepRefPointFromArcCenter::createNewInstance() const
{
    // cree une copie de cette etape
    return new ONF_StepRefPointFromArcCenter();
}

//////////////////// PROTECTED //////////////////

void ONF_StepRefPointFromArcCenter::declareInputModels(CT_StepInModelStructureManager& manager)
{
    manager.addResult(_inResult, tr("Polyligne(s)"));
    manager.setZeroOrMoreRootGroup(_inResult, _inZeroOrMoreRootGroup);
    manager.addGroup(_inZeroOrMoreRootGroup, _inGroup);
    manager.addItem(_inGroup, _inPolyline, tr("Polyligne"));
}

void ONF_StepRefPointFromArcCenter::declareOutputModels(CT_StepOutModelStructureManager& manager)
{
    manager.addResultCopy(_inResult);
    manager.addItem(_inGroup, _outBarycenter, tr("Barycentre"));
}

void ONF_StepRefPointFromArcCenter::compute()
{
    for (CT_StandardItemGroup* group : _inGroup.iterateOutputs(_inResult))
    {
        if (isStopped()) {return;}

        const CT_PointCluster* item = group->singularItem(_inPolyline);

        if(item != nullptr)
        {
            double sagitta = 0;
            double chord = 0;
            double radius = 0;
            Eigen::Vector2d center = CT_PolylinesAlgorithms::compute2DArcData(item, sagitta, chord, radius);

            if (radius > chord)
            {
                radius = chord;
            }

            // et on ajoute un referencePoint
            group->addSingularItem(_outBarycenter, new CT_ReferencePoint(center.x(), center.y(), item->centerZ(), radius));
        }
    }

    setProgress(100);
}