/*++

Copyright (C) 2019 3MF Consortium (Original Author)

All rights reserved.

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are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
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this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.

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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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Abstract: This is a stub class definition of CMeshObject

*/
#include "lib3mf_meshobject.hpp"
#include "lib3mf_interfaceexception.hpp"
#include "lib3mf_triangleset.hpp"

#include "lib3mf_beamlattice.hpp"
#include "lib3mf_volumedata.hpp"
// Include custom headers here.

#include "Common/MeshInformation/NMR_MeshInformation_Properties.h"
#include "Model/Classes/NMR_ModelVolumeData.h"
#include "Model/Classes/NMR_ModelResource.h"
#include <cmath>

using namespace Lib3MF::Impl;

/*************************************************************************************************************************
 Class definition of CMeshObject 
 **************************************************************************************************************************/

IMeshObject* CMeshObject::fnCreateMeshObjectFromModelResource(NMR::PModelResource pResource, bool bFailIfUnkownClass) {

	if (!pResource.get())
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPARAM);

	NMR::CModelMeshObject * pMeshObject = dynamic_cast<NMR::CModelMeshObject *> (pResource.get());
	if (pMeshObject) {
		return new CMeshObject(pResource);
	}

	if (bFailIfUnkownClass)
		throw ELib3MFInterfaceException(NMR_ERROR_UNKNOWNMODELRESOURCE);

	return nullptr;
}

NMR::CMeshInformation_Properties* CMeshObject::getMeshInformationProperties()
{
	auto pMesh = mesh();
	auto pInformationHandler = pMesh->createMeshInformationHandler();
	NMR::CMeshInformation_Properties * pInformation = dynamic_cast<NMR::CMeshInformation_Properties *> (pInformationHandler->getInformationByType(0, NMR::emiProperties));

	if (pInformation == nullptr) {
		NMR::PMeshInformation_Properties pNewInformation = std::make_shared<NMR::CMeshInformation_Properties>(pMesh->getFaceCount());
		pInformationHandler->addInformation(pNewInformation);

		pInformation = pNewInformation.get();
	}
	return pInformation;
}

CMeshObject::CMeshObject(NMR::PModelResource pResource)
	: CResource(pResource), CObject(pResource)
{

}

NMR::PModelMeshObject CMeshObject::meshObject()
{
	NMR::PModelMeshObject pMesh = std::dynamic_pointer_cast<NMR::CModelMeshObject>(resource());
	if (pMesh == nullptr)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDOBJECT);
	return pMesh;
}

NMR::CMesh* CMeshObject::mesh()
{
	return meshObject()->getMesh();
}

Lib3MF_uint32 CMeshObject::GetVertexCount ()
{
	return mesh()->getNodeCount();
}

Lib3MF_uint32 CMeshObject::GetTriangleCount ()
{
	return mesh()->getFaceCount();
}

void CMeshObject::SetVertex (const Lib3MF_uint32 nIndex, const sLib3MFPosition Coordinates)
{
	NMR::MESHNODE* node = mesh()->getNode(nIndex);
	node->m_position.m_fields[0] = Coordinates.m_Coordinates[0];
	node->m_position.m_fields[1] = Coordinates.m_Coordinates[1];
	node->m_position.m_fields[2] = Coordinates.m_Coordinates[2];
}

sLib3MFPosition CMeshObject::GetVertex(const Lib3MF_uint32 nIndex)
{
	NMR::MESHNODE* node = mesh()->getNode(nIndex);
	sLib3MFPosition pos;
	pos.m_Coordinates[0] = node->m_position.m_fields[0];
	pos.m_Coordinates[1] = node->m_position.m_fields[1];
	pos.m_Coordinates[2] = node->m_position.m_fields[2];
	return pos;
}

Lib3MF_uint32 CMeshObject::AddVertex (const sLib3MFPosition Coordinates)
{
	return mesh()->addNode(Coordinates.m_Coordinates[0], Coordinates.m_Coordinates[1], Coordinates.m_Coordinates[2])->m_index;
}

void CMeshObject::GetVertices(Lib3MF_uint64 nVerticesBufferSize, Lib3MF_uint64* pVerticesNeededCount, sLib3MFPosition * pVerticesBuffer)
{
	Lib3MF_uint32 nodeCount = mesh()->getNodeCount();
	if (pVerticesNeededCount)
		*pVerticesNeededCount = nodeCount;

	if (nVerticesBufferSize >= nodeCount && pVerticesBuffer)
	{
		for (Lib3MF_uint32 i = 0; i < nodeCount; i++)
		{
			const NMR::MESHNODE* node = mesh()->getNode(i);
			pVerticesBuffer[i].m_Coordinates[0] = node->m_position.m_fields[0];
			pVerticesBuffer[i].m_Coordinates[1] = node->m_position.m_fields[1];
			pVerticesBuffer[i].m_Coordinates[2] = node->m_position.m_fields[2];
		}
	}
}

sLib3MFTriangle CMeshObject::GetTriangle (const Lib3MF_uint32 nIndex)
{
	sLib3MFTriangle t;
	NMR::MESHFACE* mf = mesh()->getFace(nIndex);

	t.m_Indices[0] = mf->m_nodeindices[0];
	t.m_Indices[1] = mf->m_nodeindices[1];
	t.m_Indices[2] = mf->m_nodeindices[2];

	return t;
}

void CMeshObject::SetTriangle (const Lib3MF_uint32 nIndex, const sLib3MFTriangle Indices)
{
	NMR::MESHFACE* mf = mesh()->getFace(nIndex);

	mf->m_nodeindices[0] = Indices.m_Indices[0];
	mf->m_nodeindices[1] = Indices.m_Indices[1];
	mf->m_nodeindices[2] = Indices.m_Indices[2];
}

Lib3MF_uint32 CMeshObject::AddTriangle(const sLib3MFTriangle Indices)
{
	return mesh()->addFace(Indices.m_Indices[0], Indices.m_Indices[1], Indices.m_Indices[2])->m_index;
}

void CMeshObject::GetTriangleIndices (Lib3MF_uint64 nIndicesBufferSize, Lib3MF_uint64* pIndicesNeededCount, sLib3MFTriangle * pIndicesBuffer)
{
	Lib3MF_uint32 faceCount = mesh()->getFaceCount();
	if (pIndicesNeededCount)
		*pIndicesNeededCount = faceCount;

	if (nIndicesBufferSize >= faceCount && pIndicesBuffer)
	{
		for (Lib3MF_uint32 i = 0; i < faceCount; i++)
		{
			const NMR::MESHFACE* face = mesh()->getFace(i);
			pIndicesBuffer[i].m_Indices[0] = face->m_nodeindices[0];
			pIndicesBuffer[i].m_Indices[1] = face->m_nodeindices[1];
			pIndicesBuffer[i].m_Indices[2] = face->m_nodeindices[2];
		}
	}
}

void CMeshObject::SetObjectLevelProperty(const Lib3MF_uint32 nUniqueResourceID, const Lib3MF_uint32 nPropertyID)
{
	NMR::CMeshInformation_Properties * pInformation = getMeshInformationProperties();

	NMR::MESHINFORMATION_PROPERTIES * pDefaultData = new NMR::MESHINFORMATION_PROPERTIES;
	pDefaultData->m_nUniqueResourceID = nUniqueResourceID;
	pDefaultData->m_nPropertyIDs[0] = nPropertyID;
	pDefaultData->m_nPropertyIDs[1] = nPropertyID;
	pDefaultData->m_nPropertyIDs[2] = nPropertyID;

	pInformation->setDefaultData((NMR::MESHINFORMATIONFACEDATA*)pDefaultData);
}

bool CMeshObject::GetObjectLevelProperty(Lib3MF_uint32 & nUniqueResourceID, Lib3MF_uint32 & nPropertyID)
{
	NMR::CMeshInformation_Properties * pInformation = getMeshInformationProperties();

	NMR::MESHINFORMATION_PROPERTIES * pDefaultData = (NMR::MESHINFORMATION_PROPERTIES*)pInformation->getDefaultData();
	if (pDefaultData) {
		nUniqueResourceID = pDefaultData->m_nUniqueResourceID;
		nPropertyID = pDefaultData->m_nPropertyIDs[0];
		return true;
	}
	return false;
}

void CMeshObject::SetTriangleProperties(const Lib3MF_uint32 nIndex, const sLib3MFTriangleProperties Properties)
{
	NMR::CMeshInformation_Properties * pInformation = getMeshInformationProperties();

	NMR::MESHINFORMATION_PROPERTIES * pFaceData = (NMR::MESHINFORMATION_PROPERTIES*)pInformation->getFaceData(nIndex);
	if (pFaceData != nullptr) {
		pFaceData->m_nUniqueResourceID = Properties.m_ResourceID;
		for (unsigned j = 0; j < 3; j++) {
			pFaceData->m_nPropertyIDs[j] = Properties.m_PropertyIDs[j];
		}
	}

}

void CMeshObject::GetTriangleProperties(const Lib3MF_uint32 nIndex, sLib3MFTriangleProperties & sProperty)
{
	NMR::CMeshInformation_Properties * pInformation = getMeshInformationProperties();

	NMR::MESHINFORMATION_PROPERTIES * pFaceData = (NMR::MESHINFORMATION_PROPERTIES*)pInformation->getFaceData(nIndex);
	if (pFaceData != nullptr) {
		sProperty.m_ResourceID = pFaceData->m_nUniqueResourceID;
		for (unsigned j = 0; j < 3; j++) {
			sProperty.m_PropertyIDs[j] = pFaceData->m_nPropertyIDs[j];
		}

	}
	else {
		sProperty.m_ResourceID = 0;
		for (unsigned j = 0; j < 3; j++) {
			sProperty.m_PropertyIDs[j] = 0;
		}

	}
}

void CMeshObject::SetAllTriangleProperties(const Lib3MF_uint64 nPropertiesArrayBufferSize, const sLib3MFTriangleProperties * pPropertiesArrayBuffer)
{
	auto pMesh = mesh();
	uint32_t nFaceCount = pMesh->getFaceCount();

	if (nPropertiesArrayBufferSize != nFaceCount)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPROPERTYCOUNT);
	if (pPropertiesArrayBuffer == nullptr)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPARAM);

	NMR::CMeshInformation_Properties * pInformation = getMeshInformationProperties();

	const sLib3MFTriangleProperties * pProperty = pPropertiesArrayBuffer;

	for (uint32_t nIndex = 0; nIndex < nFaceCount; nIndex++) {
		NMR::MESHINFORMATION_PROPERTIES * pFaceData = (NMR::MESHINFORMATION_PROPERTIES*)pInformation->getFaceData(nIndex);
		if (pFaceData != nullptr) {
			pFaceData->m_nUniqueResourceID = pProperty->m_ResourceID;
			for (unsigned j = 0; j < 3; j++) {
				pFaceData->m_nPropertyIDs[j] = pProperty->m_PropertyIDs[j];
			}
		}
		pProperty++;
	}

	// Prepare an object-level property, if it makes sense to do so
	if ((nFaceCount > 0) && (pInformation->getDefaultData() == nullptr)) {
		NMR::MESHINFORMATION_PROPERTIES * pFaceData = (NMR::MESHINFORMATION_PROPERTIES*)pInformation->getFaceData(0);
		std::unique_ptr<NMR::MESHINFORMATION_PROPERTIES> pDefaultFaceData(new NMR::MESHINFORMATION_PROPERTIES);
		pDefaultFaceData->m_nUniqueResourceID = pFaceData->m_nUniqueResourceID;
		for (unsigned j = 0; j < 3; j++) {
			pDefaultFaceData->m_nPropertyIDs[j] = pFaceData->m_nPropertyIDs[j];
		}
		pInformation->setDefaultData((NMR::MESHINFORMATIONFACEDATA*)pDefaultFaceData.release());
	}

}

void CMeshObject::GetAllTriangleProperties(Lib3MF_uint64 nPropertiesArrayBufferSize, Lib3MF_uint64* pPropertiesArrayNeededCount, sLib3MFTriangleProperties * pPropertiesArrayBuffer)
{
	auto pMesh = mesh();
	uint32_t nFaceCount = pMesh->getFaceCount();

	if (pPropertiesArrayNeededCount)
		*pPropertiesArrayNeededCount = nFaceCount;

	if (nPropertiesArrayBufferSize >= nFaceCount && pPropertiesArrayBuffer)
	{
		NMR::CMeshInformation_Properties * pInformation = getMeshInformationProperties();

		sLib3MFTriangleProperties * pProperty = pPropertiesArrayBuffer;

		uint32_t nIndex;
		for (nIndex = 0; nIndex < nFaceCount; nIndex++) {

			NMR::MESHINFORMATION_PROPERTIES * pFaceData = (NMR::MESHINFORMATION_PROPERTIES*)pInformation->getFaceData(nIndex);
			if (pFaceData != nullptr) {
				pProperty->m_ResourceID = pFaceData->m_nUniqueResourceID;
				for (unsigned j = 0; j < 3; j++) {
					pProperty->m_PropertyIDs[j] = pFaceData->m_nPropertyIDs[j];
				}
			}
			pProperty++;
		}
	}
}

void CMeshObject::ClearAllProperties()
{
	mesh()->clearMeshInformationHandler();
}

void CMeshObject::SetGeometry(const Lib3MF_uint64 nVerticesBufferSize, const sLib3MFPosition * pVerticesBuffer, const Lib3MF_uint64 nIndicesBufferSize, const sLib3MFTriangle * pIndicesBuffer)
{
	if ( ((!pVerticesBuffer) && (nVerticesBufferSize>0)) || ((!pIndicesBuffer) && (nIndicesBufferSize>0)))
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPARAM);

	NMR::CMesh * pMesh = mesh();

	// Clear old mesh
	pMesh->clear();

	// Rebuild Mesh Coordinates
	const sLib3MFPosition * pVertex = pVerticesBuffer;
	for (Lib3MF_uint64 nIndex = 0; nIndex < nVerticesBufferSize; nIndex++) {
		for (int j = 0; j < 3; j++) {
			if (std::fabs(pVertex->m_Coordinates[j]) > NMR_MESH_MAXCOORDINATE)
				throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPARAM);
		}
		pMesh->addNode(pVertex->m_Coordinates[0], pVertex->m_Coordinates[1], pVertex->m_Coordinates[2]);

		pVertex++;
	}

	// Rebuild Mesh Faces
	const sLib3MFTriangle * pTriangle = pIndicesBuffer;
	for (Lib3MF_uint64 nIndex = 0; nIndex < nIndicesBufferSize; nIndex++) {
		NMR::MESHNODE * pNodes[3];

		for (int j = 0; j < 3; j++) {
			if (pTriangle->m_Indices[j] >= nVerticesBufferSize)
				throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPARAM);
			pNodes[j] = pMesh->getNode(pTriangle->m_Indices[j]);
		}

		if ((pTriangle->m_Indices[0] == pTriangle->m_Indices[1]) ||
			(pTriangle->m_Indices[0] == pTriangle->m_Indices[2]) ||
			(pTriangle->m_Indices[1] == pTriangle->m_Indices[2]))
			throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDPARAM);

		pMesh->addFace(pNodes[0], pNodes[1], pNodes[2]);

		pTriangle++;
	}
}

bool CMeshObject::IsManifoldAndOriented ()
{
	return meshObject()->isManifoldAndOriented();
}

bool CMeshObject::IsMeshObject()
{
	return true;
}

bool CMeshObject::IsComponentsObject()
{
	return false;
}

bool CMeshObject::IsLevelSetObject()
{
	return false;
}

bool CMeshObject::IsValid()
{
	return meshObject()->isValid();
}

IBeamLattice* CMeshObject::BeamLattice()
{
	return new CBeamLattice(meshObject(), meshObject()->getBeamLatticeAttributes());
}

IVolumeData * CMeshObject::GetVolumeData()
{
	auto volumeData = meshObject()->getVolumeData();
	if (!volumeData)
	{
		return nullptr;
	}
	return new CVolumeData(std::dynamic_pointer_cast<NMR::CModelResource>(meshObject()->getVolumeData()));
}

void CMeshObject::SetVolumeData(IVolumeData* pTheVolumeData)
{
	NMR::CModel * pModel = meshObject()->getModel();
	if (pModel == nullptr)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDOBJECT);

	NMR::PModelResource pResource = pModel->findResource(pTheVolumeData->GetResourceID());

	if (pResource == nullptr)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDOBJECT, "Referenced VolumeData Resource with ID " + std::to_string(pTheVolumeData->GetModelResourceID()) + " not found");

	NMR::PModelVolumeData pVolumeData = std::dynamic_pointer_cast<NMR::CModelVolumeData>(pResource);

	if (pVolumeData == nullptr)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDOBJECT, "Referenced Resource is not of type VolumeData");

	meshObject()->setVolumeData(pVolumeData);
}

ITriangleSet* CMeshObject::AddTriangleSet(const std::string& sIdentifier, const std::string& sName)
{	
	return new CTriangleSet(meshObject()->addTriangleSet(sIdentifier, sName), meshObject());
}

bool CMeshObject::HasTriangleSet(const std::string& sIdentifier)
{
	auto pTriangleSet = meshObject()->findTriangleSet(sIdentifier);
	return (pTriangleSet.get() != nullptr);
}

ITriangleSet* CMeshObject::FindTriangleSet(const std::string& sIdentifier)
{
	auto pMeshObject = meshObject();
	auto pTriangleSet = pMeshObject->findTriangleSet(sIdentifier);
	if (pTriangleSet.get() == nullptr)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_COULDNOTFINDTRIANGLESET);

	return new CTriangleSet(pTriangleSet, pMeshObject);

}

Lib3MF_uint32 CMeshObject::GetTriangleSetCount() 
{
	return meshObject()->getTriangleSetCount();
}

ITriangleSet* CMeshObject::GetTriangleSet(const Lib3MF_uint32 nIndex)
{
	auto pMeshObject = meshObject();
	auto nTriangleSetCount = pMeshObject->getTriangleSetCount();
	if (nIndex >= nTriangleSetCount)
		throw ELib3MFInterfaceException(LIB3MF_ERROR_INVALIDTRIANGLESETINDEX);
	
	auto pTriangleSet = meshObject()->getTriangleSet (nIndex);

	return new CTriangleSet(pTriangleSet, pMeshObject);
}

