// SPDX-License-Identifier: LGPL-2.1-or-later
/****************************************************************************
 *                                                                          *
 *   Copyright (c) 2024 wandererfan <wandererfan@gmail.com>                 *
 *                                                                          *
 *   This file is part of FreeCAD.                                          *
 *                                                                          *
 *   FreeCAD is free software: 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 2.1 of the   *
 *   License, or (at your option) any later version.                        *
 *                                                                          *
 *   FreeCAD 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       *
 *   Lesser General Public License for more details.                        *
 *                                                                          *
 *   You should have received a copy of the GNU Lesser General Public       *
 *   License along with FreeCAD. If not, see                                *
 *   <https://www.gnu.org/licenses/>.                                       *
 *                                                                          *
 ***************************************************************************/

#ifndef MEASURE_SHAPEFINDER_H
#define MEASURE_SHAPEFINDER_H

#include <Mod/Measure/MeasureGlobal.h>

#include <TopoDS_Shape.hxx>

#include <App/DocumentObject.h>
#include <App/DocumentObserver.h>
#include <Base/Placement.h>
#include <Base/Matrix.h>

#include <Mod/Part/App/TopoShape.h>

#include "SubnameHelper.h"

namespace Measure
{

//! a class to hold the result of resolving a selection into the actual target object
//! and traditional subElement name (Vertex1)

class MeasureExport ResolveResult
{
public:
    ResolveResult();
    ResolveResult(
        const App::DocumentObject* realTarget,
        const std::string& shortSubName,
        const App::DocumentObject* targetParent
    );

    App::DocumentObject& getTarget() const;
    std::string getShortSub() const;
    App::DocumentObject& getTargetParent() const;

private:
    App::SubObjectT m_target;
    App::DocumentObjectT m_targetParent;
};


//! a class to obtain the located shape pointed at by a selection
class MeasureExport ShapeFinder: public SubnameHelper
{
public:
    static TopoDS_Shape getLocatedShape(
        const App::DocumentObject& rootObject,
        const std::string& leafSub
    );
    static Part::TopoShape getLocatedTopoShape(
        const App::DocumentObject& rootObject,
        const std::string& leafSub
    );


    static std::pair<Base::Placement, Base::Matrix4D> getGlobalTransform(
        const App::DocumentObject& rootObject,
        const std::string& leafSub
    );
    static std::pair<Base::Placement, Base::Matrix4D> getGlobalTransform(
        const App::DocumentObject* cursorObject
    );

    static void crawlPlacementChain(
        std::vector<Base::Placement>& plmStack,
        std::vector<Base::Matrix4D>& scaleStack,
        const App::DocumentObject& rootObj,
        const std::string& leafSub
    );

    static ResolveResult resolveSelection(
        const App::DocumentObject& selectObj,
        const std::string& selectLongSub
    );

    static Base::Placement getPlacement(const App::DocumentObject* root);
    static Base::Matrix4D getScale(const App::DocumentObject* root);

    static bool isLinkLike(const App::DocumentObject* obj);
    static std::string PlacementAsString(const Base::Placement& inPlacement);
    static std::string LocationAsString(const TopLoc_Location& location);

    static TopoDS_Shape transformShape(
        TopoDS_Shape& inShape,
        const Base::Placement& placement,
        const Base::Matrix4D& scaler
    );
    static TopoDS_Shape stripInfiniteShapes(const TopoDS_Shape& inShape);
    static bool isShapeReallyNull(const TopoDS_Shape& shape);

    static std::pair<Base::Placement, Base::Matrix4D> sumTransforms(
        const std::vector<Base::Placement>& plmStack,
        const std::vector<Base::Matrix4D>& scaleStack
    );
    static App::DocumentObject* getLinkAttachParent(const App::DocumentObject* attachedObject);
    static Base::Placement getAttachedPlacement(const App::DocumentObject* cursorObject);

    static std::string getFullPath(const App::DocumentObject* object);
    static std::vector<App::DocumentObject*> getGeometryRootObjects(const App::Document* doc);
    static std::vector<std::list<App::DocumentObject*>> getGeometryPathsFromOutList(
        const App::DocumentObject* object
    );


private:
    static bool ignoreModule(const std::string& moduleName);
    static bool ignoreObject(const App::DocumentObject* object);
    static bool ignoreLinkAttachedObject(
        const App::DocumentObject* object,
        const App::DocumentObject* inlistObject
    );
    static std::vector<App::DocumentObject*> tidyInList(
        const std::vector<App::DocumentObject*>& inlist
    );
    static std::vector<App::DocumentObject*> tidyInListAttachment(
        const App::DocumentObject* owner,
        const std::vector<App::DocumentObject*>& inlist
    );
};

}  // namespace Measure

#endif  // MEASURE_SHAPEFINDER_H