#include "FITKAbstractOCCModel.h"
#include "FITK_Interface/FITKInterfaceModel/FITKAbstractGeoModel.h"
#include "FITK_Interface/FITKInterfaceGeometry/FITKVirtualTopoManager.h"
#include "FITK_Kernel/FITKCore/FITKThreadPool.h"
#include "FITKOCCVirtualTopoCreator.h"
#include "FITKOCCShapeTriangulate.h"
#include <limits>
#include <TopoDS_Shape.hxx>
#include <BRepTools.hxx>
#include <STEPControl_Writer.hxx>
#include <IGESControl_Controller.hxx>
#include <IGESControl_Writer.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopExp.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Face.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <Bnd_Box.hxx>
#include <BRepBndLib.hxx>
#include <BRep_Tool.hxx>
#include <TopExp_Explorer.hxx>
#include <TShort_Array1OfShortReal.hxx>
#include <StlAPI.hxx>
#include <QHash>
#include <QFile>
#include <QTextStream>
#include <QVector3D>
#include <QDebug>
// 
// void printSubShape(Interface::FITKAbsVirtualTopo* topo)
// {
// 	if (topo == nullptr) return;
// 	qDebug() << topo->getShapeType() << "  " << topo->getDataObjectID();
// 
// 	const int n = topo->getSubTopoCount();
// 	QList<Interface::FITKAbsVirtualTopo*> subtopos;
// 	for (int i=0;i<n; ++i)
// 	{
// 		auto sub = topo->getSubTopo(i);
// 		subtopos.append(sub);
// 		qDebug() << sub->getShapeType() << "  " << sub->getDataObjectID();
// 		
// 	}
// 	for (auto s : subtopos)
// 	{
// 		printSubShape(s);
// 	}
// 
// 	qDebug() << "";
// }


//建立映射关系
static QHash<Interface::FITKModelEnum::FITKModelSetType, TopAbs_ShapeEnum> OCCShapeEnums = {
    {Interface::FITKModelEnum::FITKModelSetType::FMSPoint,   TopAbs_VERTEX},
    {Interface::FITKModelEnum::FITKModelSetType::FMSEdge,    TopAbs_EDGE},
    {Interface::FITKModelEnum::FITKModelSetType::FMSSurface, TopAbs_FACE},
    {Interface::FITKModelEnum::FITKModelSetType::FMSSolid,   TopAbs_SOLID} };

namespace OCC
{
    FITKAbstractOCCModel::FITKAbstractOCCModel(Interface::FITKAbsGeoCommand* c)
        :Interface::FITKAbsGeoShapeAgent(c)
    {
        _shape = new TopoDS_Shape;
    }

    FITKAbstractOCCModel::~FITKAbstractOCCModel()
    {
        if(_shape) delete _shape;
    }

    bool FITKAbstractOCCModel::writeToFile(const QString & file)
    {
        QString lowerS = file.toLower();
        QByteArray ba = lowerS.toLocal8Bit();
        const char* c = ba.data();
        bool ok = false;
        //导出brep
        if (lowerS.endsWith("brep"))
        {
            ok = BRepTools::Write(*_shape, c);
        }
        //导出stp
        else if (lowerS.endsWith("stp") || lowerS.endsWith("step"))
        {
            STEPControl_Writer awriter;
            awriter.Transfer(*_shape, STEPControl_AsIs);
            ok = awriter.Write(c);
        }
        //写出 igs
        else if (lowerS.endsWith("igs") || lowerS.endsWith("iges"))
        {
            IGESControl_Controller::Init();
            IGESControl_Writer igesWriter;
            igesWriter.AddShape(*_shape);
            ok = igesWriter.Write(c);
        }
        return ok;
    }

    int FITKAbstractOCCModel::getShapeCount(Interface::FITKModelEnum::FITKModelSetType type)
    {
        if (!OCCShapeEnums.contains(type)) return -1;
        TopAbs_ShapeEnum shapeType = OCCShapeEnums.value(type);

        //建立映射
        TopTools_IndexedMapOfShape maps;
        TopExp::MapShapes(*_shape, shapeType, maps);
        return maps.Extent();
    }

    const TopoDS_Shape FITKAbstractOCCModel::getShape(Interface::FITKModelEnum::FITKModelSetType type, const int id)
    {
        if (!OCCShapeEnums.contains(type)) return TopoDS_Shape();
        TopAbs_ShapeEnum shapeType = OCCShapeEnums.value(type);
        //建立映射
        TopTools_IndexedMapOfShape maps;
        TopExp::MapShapes(*_shape, shapeType, maps);
        //key 从1开始
        return maps.FindKey(id);
    }

    TopoDS_Shape* FITKAbstractOCCModel::getShape()
    {
        return _shape;
    }
  

    Interface::FITKGeoEnum::FITKGeoEngine FITKAbstractOCCModel::getGeoEngine()
    {
        return Interface::FITKGeoEnum::FGEOCC;
    }

    Interface::FITKModelEnum::AbsModelType FITKAbstractOCCModel::getAbsModelType()
    {
        return Interface::FITKModelEnum::AbsModelType::AMTGeometry;
    }

    void FITKAbstractOCCModel::getBoundaryBox(double* min, double* max)
    {
        if (min == nullptr || max == nullptr) return;
        //计算包围盒
        Bnd_Box box;
        BRepBndLib::Add(*_shape, box, false); 

        gp_Pnt minpt = box.CornerMin();
        gp_Pnt maxpt = box.CornerMax();
        //复制值
        min[0] = minpt.X();
        min[1] = minpt.Y();
        min[2] = minpt.Z();
        max[0] = maxpt.X();
        max[1] = maxpt.Y();
        max[2] = maxpt.Z();
    }

    void FITKAbstractOCCModel::updateShape(const TopoDS_Shape& shape)
    {
        //正在执行构建拓扑
        if (_buildingTopo) return;
        *_shape = shape;
        this->buildVirtualTopo();
    }

    void FITKAbstractOCCModel::buildVirtualTopo()
    {
        if (_buildingTopo) return;
        _vtmanager->clear();
		QString name;
		if (_command)
			name = _command->getDataObjectName();
		FITKOCCVirtualTopoCreator* creator = new FITKOCCVirtualTopoCreator(*_shape, _vtmanager, name,_buildingTopo);
		creator->createOCCTopos();
		Core::FITKThreadPool::getInstance()->execTask(creator);
//        v.creatOCCVirtualTopo(*_shape, _vtmanager);
//        this->triangulation();
    }

    void FITKAbstractOCCModel::triangulation()
    {
//        this->triangulate(*_shape);
        FITKOCCShapeTriangulate t(this);
        t.triangulate();
    }

    int FITKAbstractOCCModel::shapeHashCode()
    {
        if (_shape == nullptr || _shape->IsNull()) return -1;
        return _shape->HashCode(std::numeric_limits<int>::max());
    }

    OCCShapeAgent::OCCShapeAgent(Interface::FITKAbsGeoCommand* c)
    {
        _occShapeAgent = new FITKAbstractOCCModel(c);
    }
}