/*

Open Asset Import Library (assimp)

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  copyright notice, this list of conditions and the

  following disclaimer.

* Redistributions in binary form must reproduce the above

  copyright notice, this list of conditions and the

  following disclaimer in the documentation and/or other

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* Neither the name of the assimp team, nor the names of its

  contributors may be used to endorse or promote products

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  written permission of the assimp team.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

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*/

/** @file  FBXNoteAttribute.cpp

 *  @brief Assimp::FBX::NodeAttribute (and subclasses) implementation

 */

#ifndef ASSIMP_BUILD_NO_FBX_IMPORTER

#include "FBXParser.h"

#include "FBXDocument.h"

#include "FBXMeshGeometry.h"

#include "FBXImporter.h"

#include "FBXDocumentUtil.h"

namespace Assimp {

namespace FBX {

using namespace Util;

// ------------------------------------------------------------------------------------------------

Deformer::Deformer(uint64_t id, const Element& element, const Document& doc, const std::string& name) :

        Object(id,element,name) {

    const Scope& sc = GetRequiredScope(element);

    const std::string& classname = ParseTokenAsString(GetRequiredToken(element,2));

    props = GetPropertyTable(doc,"Deformer.Fbx" + classname,element,sc,true);

}

// ------------------------------------------------------------------------------------------------

Cluster::Cluster(uint64_t id, const Element& element, const Document& doc, const std::string& name)

: Deformer(id,element,doc,name)

, node()

{

    const Scope& sc = GetRequiredScope(element);

    const Element* const Indexes = sc["Indexes"];

    const Element* const Weights = sc["Weights"];

    const Element& Transform = GetRequiredElement(sc,"Transform",&element);

    const Element& TransformLink = GetRequiredElement(sc,"TransformLink",&element);

    transform = ReadMatrix(Transform);

    transformLink = ReadMatrix(TransformLink);

    // it is actually possible that there are Deformer's with no weights

    if (!!Indexes != !!Weights) {

        DOMError("either Indexes or Weights are missing from Cluster",&element);

    }

    if(Indexes) {

        ParseVectorDataArray(indices,*Indexes);

        ParseVectorDataArray(weights,*Weights);

    }

    if(indices.size() != weights.size()) {

        DOMError("sizes of index and weight array don't match up",&element);

    }

    // read assigned node

    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Model");

    for(const Connection* con : conns) {

        const Model* const mod = ProcessSimpleConnection<Model>(*con, false, "Model -> Cluster", element);

        if(mod) {

            node = mod;

            break;

        }

    }

    if (!node) {

        DOMError("failed to read target Node for Cluster",&element);

    }

}

// ------------------------------------------------------------------------------------------------

Skin::Skin(uint64_t id, const Element& element, const Document& doc, const std::string& name)

: Deformer(id,element,doc,name)

, accuracy( 0.0f ) {

    const Scope& sc = GetRequiredScope(element);

    const Element* const Link_DeformAcuracy = sc["Link_DeformAcuracy"];

    if(Link_DeformAcuracy) {

        accuracy = ParseTokenAsFloat(GetRequiredToken(*Link_DeformAcuracy,0));

    }

    // resolve assigned clusters

    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(),"Deformer");

    clusters.reserve(conns.size());

    for(const Connection* con : conns) {

        const Cluster* const cluster = ProcessSimpleConnection<Cluster>(*con, false, "Cluster -> Skin", element);

        if(cluster) {

            clusters.push_back(cluster);

            continue;

        }

    }

}

// ------------------------------------------------------------------------------------------------

BlendShape::BlendShape(uint64_t id, const Element& element, const Document& doc, const std::string& name)

    : Deformer(id, element, doc, name)

{

    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(), "Deformer");

    blendShapeChannels.reserve(conns.size());

    for (const Connection* con : conns) {

        const BlendShapeChannel* const bspc = ProcessSimpleConnection<BlendShapeChannel>(*con, false, "BlendShapeChannel -> BlendShape", element);

        if (bspc) {

            auto pr = blendShapeChannels.insert(bspc);

            if (!pr.second) {

                FBXImporter::LogWarn("there is the same blendShapeChannel id ", bspc->ID());

            }

        }

    }

}

// ------------------------------------------------------------------------------------------------

BlendShapeChannel::BlendShapeChannel(uint64_t id, const Element& element, const Document& doc, const std::string& name)

    : Deformer(id, element, doc, name)

{

    const Scope& sc = GetRequiredScope(element);

    const Element* const DeformPercent = sc["DeformPercent"];

    if (DeformPercent) {

        percent = ParseTokenAsFloat(GetRequiredToken(*DeformPercent, 0));

    }

    const Element* const FullWeights = sc["FullWeights"];

    if (FullWeights) {

        ParseVectorDataArray(fullWeights, *FullWeights);

    }

    const std::vector<const Connection*>& conns = doc.GetConnectionsByDestinationSequenced(ID(), "Geometry");

    shapeGeometries.reserve(conns.size());

    for (const Connection* con : conns) {

        const ShapeGeometry* const sg = ProcessSimpleConnection<ShapeGeometry>(*con, false, "Shape -> BlendShapeChannel", element);

        if (sg) {

            auto pr = shapeGeometries.insert(sg);

            if (!pr.second) {

                FBXImporter::LogWarn("there is the same shapeGeometrie id ", sg->ID());

            }

        }

    }

}

} // namespace FBX

} // Namespace Assimp

#endif // ASSIMP_BUILD_NO_FBX_IMPORTER