/*++

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Abstract:

NMR_ModelCompositeMaterials.cpp implements the Model Composite Materials Resource Class.
A model composite materials resource is an in memory representation of the 3MF
composite materials resource object.

--*/

#include "Model/Classes/NMR_ModelCompositeMaterials.h" 
#include "Model/Classes/NMR_ModelConstants.h" 
#include "Common/NMR_Exception.h" 
#include <sstream>

namespace NMR {

	;
	CModelCompositeMaterialsResource::CModelCompositeMaterialsResource(_In_ const ModelResourceID sID, _In_ CModel * pModel,
		_In_ PModelBaseMaterialResource pBaseMaterialResource)
		: CModelResource(sID, pModel), m_pBaseMaterialResource(pBaseMaterialResource)
	{
		m_nNextPropertyID = 1;
		if (!pBaseMaterialResource.get())
			throw CNMRException(NMR_ERROR_INVALIDPARAM);
	}

	nfUint32 CModelCompositeMaterialsResource::addComposite(_In_ PModelComposite pComposite)
	{
		nfUint32 nID = m_nNextPropertyID;
		if (getCount() >= XML_3MF_MAXRESOURCEINDEX) {
			throw CNMRException(NMR_ERROR_TOOMANYCOMPOSITES);
		}
		
		// check for valid PropertyID
		for (auto constituent : *pComposite) {
			m_pBaseMaterialResource->getBaseMaterial(constituent.m_nPropertyID);
			if ((constituent.m_dMixingRatio < 0) || constituent.m_dMixingRatio > 1.0) {
				throw CNMRException(NMR_ERROR_MIXINGRATIO_OUTOFRANGE);
			}
		}
		

		m_pComposites.insert(std::make_pair(nID, pComposite));

		m_nNextPropertyID++;

		clearResourceIndexMap();

		return nID;
	}

	nfUint32 CModelCompositeMaterialsResource::getCount()
	{
		return (nfUint32)m_pComposites.size();
	}

	PModelComposite CModelCompositeMaterialsResource::getComposite(_In_ ModelPropertyID nPropertyID)
	{
		auto iIterator = m_pComposites.find(nPropertyID);
		if (iIterator != m_pComposites.end()) {
			return iIterator->second;
		}
		else {
			throw CNMRException(NMR_ERROR_INVALIDINDEX);
		}
	}

	void CModelCompositeMaterialsResource::setComposite(_In_ ModelPropertyID nPropertyID, _In_ PModelComposite pComposite)
	{
		auto iIterator = m_pComposites.find(nPropertyID);
		if (iIterator != m_pComposites.end()) {
			iIterator->second = pComposite;
		}
		else {
			throw CNMRException(NMR_ERROR_INVALIDINDEX);
		}
	}

	void CModelCompositeMaterialsResource::removeComposite(_In_ ModelPropertyID nPropertyID)
	{
		m_pComposites.erase(nPropertyID);
		clearResourceIndexMap();
	}

	void CModelCompositeMaterialsResource::mergeFrom(_In_ CModelCompositeMaterialsResource * pSourceCompositesMaterials)
	{
		if (pSourceCompositesMaterials == nullptr)
			throw CNMRException(NMR_ERROR_INVALIDPARAM);
		
		nfUint32 nCount = pSourceCompositesMaterials->getCount();

		pSourceCompositesMaterials->buildResourceIndexMap();
		for (nfUint32 nIndex = 0; nIndex < nCount; nIndex++) {
			ModelPropertyID nPropertyID;
			pSourceCompositesMaterials->mapResourceIndexToPropertyID(nIndex, nPropertyID);
			PModelComposite pCmposite = pSourceCompositesMaterials->getComposite(nPropertyID);
			addComposite(pCmposite);
		}
		clearResourceIndexMap();
	}

	void CModelCompositeMaterialsResource::buildResourceIndexMap()
	{
		m_ResourceIndexMap.clear();
		m_ResourceIndexMap.reserve(m_pComposites.size());

		auto iIterator = m_pComposites.begin();
		while (iIterator != m_pComposites.end()) {
			m_ResourceIndexMap.push_back(iIterator->first);
			iIterator++;
		}

		m_bHasResourceIndexMap = true;
	}

	PModelBaseMaterialResource CModelCompositeMaterialsResource::getBaseMaterialResource()
	{
		return m_pBaseMaterialResource;
	}
}