//-*****************************************************************************

//

// Copyright (c) 2009-2013,

//  Sony Pictures Imageworks, Inc. and

//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.

//

// All rights reserved.

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

// *       Redistributions of source code must retain the above 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 materials provided with the

// distribution.

// *       Neither the name of Sony Pictures Imageworks, nor

// Industrial Light & Magic nor the names of their contributors may be used

// to endorse or promote products derived from this software without specific

// prior written permission.

//

// 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

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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

//-*****************************************************************************

#ifndef Alembic_AbcGeom_OPolyMesh_h

#define Alembic_AbcGeom_OPolyMesh_h

#include <Alembic/Util/Export.h>

#include <Alembic/AbcGeom/Foundation.h>

#include <Alembic/AbcGeom/SchemaInfoDeclarations.h>

#include <Alembic/AbcGeom/OFaceSet.h>

#include <Alembic/AbcGeom/OGeomParam.h>

#include <Alembic/AbcGeom/OGeomBase.h>

namespace Alembic {

namespace AbcGeom {

namespace ALEMBIC_VERSION_NS {

//-*****************************************************************************

class ALEMBIC_EXPORT OPolyMeshSchema

    : public OGeomBaseSchema<PolyMeshSchemaInfo>

{

public:

    //-*************************************************************************

    // POLY MESH SCHEMA SAMPLE TYPE

    //-*************************************************************************

    class Sample

    {

    public:

        //! Creates a default sample with no data in it.

        //! ...

        Sample() { reset(); }

        //! Creates a sample with position data but no index

        //! or count data. For specifying samples after the first one

        Sample( const Abc::P3fArraySample &iPos )

          : m_positions( iPos ) {}

        //! Creates a sample with position data, index data, count data,

        //! and optional UV and Normals data.

        //! For specifying samples with an explicit topology. The first

        //! sample must be full like this. Subsequent samples may also

        //! be full like this, which would indicate a change of topology

        Sample( const Abc::P3fArraySample &iPos,

                const Abc::Int32ArraySample &iInd,

                const Abc::Int32ArraySample &iCnt,

                const OV2fGeomParam::Sample &iUVs = OV2fGeomParam::Sample(),

                const ON3fGeomParam::Sample &iNormals = ON3fGeomParam::Sample() )

          : m_positions( iPos )

          , m_indices( iInd )

          , m_counts( iCnt )

          , m_uvs( iUVs )

          , m_normals( iNormals )

        {}

        const Abc::P3fArraySample &getPositions() const { return m_positions; }

        void setPositions( const Abc::P3fArraySample &iSmp )

        { m_positions = iSmp; }

        // velocities accessor

        const Abc::V3fArraySample &getVelocities() const { return m_velocities; }

        void setVelocities( const Abc::V3fArraySample &iVelocities )

        { m_velocities = iVelocities; }

        const Abc::Int32ArraySample &getFaceIndices() const { return m_indices; }

        void setFaceIndices( const Abc::Int32ArraySample &iSmp )

        { m_indices = iSmp; }

        const Abc::Int32ArraySample &getFaceCounts() const { return m_counts; }

        void setFaceCounts( const Abc::Int32ArraySample &iCnt )

        { m_counts = iCnt; }

        const Abc::Box3d &getSelfBounds() const { return m_selfBounds; }

        void setSelfBounds( const Abc::Box3d &iBnds )

        { m_selfBounds = iBnds; }

        const OV2fGeomParam::Sample &getUVs() const { return m_uvs; }

        void setUVs( const OV2fGeomParam::Sample &iUVs )

        { m_uvs = iUVs; }

        const ON3fGeomParam::Sample &getNormals() const { return m_normals; }

        void setNormals( const ON3fGeomParam::Sample &iNormals )

        { m_normals = iNormals; }

        void reset()

        {

            m_positions.reset();

            m_indices.reset();

            m_counts.reset();

            m_selfBounds.makeEmpty();

            m_velocities.reset();

            m_uvs.reset();

            m_normals.reset();

        }

        bool isPartialSample() const

        {

            if( !m_positions.getData() && !m_indices.getData() && !m_counts.getData() )

            {

                if( m_uvs.getVals() || m_normals.getVals() || m_velocities.getData() )

                {

                    return true;

                }

            }

            return false;

        }

    protected:

        Abc::P3fArraySample m_positions;

        Abc::Int32ArraySample m_indices;

        Abc::Int32ArraySample m_counts;

        Abc::Box3d m_selfBounds;

        Abc::V3fArraySample m_velocities;

        OV2fGeomParam::Sample m_uvs;

        ON3fGeomParam::Sample m_normals;

    };

    //-*************************************************************************

    // POLY MESH SCHEMA

    //-*************************************************************************

public:

    //! By convention we always define this_type in AbcGeom classes.

    //! Used by unspecified-bool-type conversion below

    typedef OPolyMeshSchema this_type;

    //-*************************************************************************

    // CONSTRUCTION, DESTRUCTION, ASSIGNMENT

    //-*************************************************************************

    //! The default constructor creates an empty OPolyMeshSchema

    //! ...

    OPolyMeshSchema()

    {

        m_selectiveExport = false;

        m_numSamples = 0;

        m_timeSamplingIndex = 0;

    }

    //! This constructor creates a new poly mesh writer.

    //! The first argument is an CompoundPropertyWriterPtr to use as a parent.

    //! The next is the name to give the schema which is usually the default

    //! name given by OPolyMesh (.geom)   The remaining optional arguments

    //! can be used to override the ErrorHandlerPolicy, to specify

    //! MetaData, specify sparse sampling and to set TimeSampling.

    OPolyMeshSchema( AbcA::CompoundPropertyWriterPtr iParent,

                     const std::string &iName,

                     const Abc::Argument &iArg0 = Abc::Argument(),

                     const Abc::Argument &iArg1 = Abc::Argument(),

                     const Abc::Argument &iArg2 = Abc::Argument(),

                     const Abc::Argument &iArg3 = Abc::Argument() );

    //! This constructor creates a new poly mesh writer.

    //! The first argument is an OCompundProperty to use as a parent, and from

    //! which the ErrorHandlerPolicy is derived.  The next is the name to give

    //! the schema which is usually the default name given by OPolyMesh (.geom)

    //! The remaining optional arguments can be used to specify MetaData,

    //! specify sparse sampling and to set TimeSampling.

    OPolyMeshSchema( Abc::OCompoundProperty iParent,

                     const std::string &iName,

                     const Abc::Argument &iArg0 = Abc::Argument(),

                     const Abc::Argument &iArg1 = Abc::Argument(),

                     const Abc::Argument &iArg2 = Abc::Argument() );

    //! Default assignment and copy operator used.

    //-*************************************************************************

    // SCHEMA STUFF

    //-*************************************************************************

    //! Return the time sampling type, which is stored on each of the

    //! sub properties.

    AbcA::TimeSamplingPtr getTimeSampling() const

    {

        if( m_positionsProperty.valid() )

        {

            return m_positionsProperty.getTimeSampling();

        }

        else

        {

            return getObject().getArchive().getTimeSampling( 0 );

        }

    }

    //-*************************************************************************

    // SAMPLE STUFF

    //-*************************************************************************

    //! Get number of samples written so far.

    //! ...

    size_t getNumSamples() const

    { return m_numSamples; }

    //! Set a sample! Sample zero has to have non-degenerate

    //! positions, indices and counts.

    void set( const Sample &iSamp );

    //! Set from previous sample. Will apply to each of positions,

    //! indices, and counts.

    void setFromPrevious();

    void setTimeSampling( uint32_t iIndex );

    void setTimeSampling( AbcA::TimeSamplingPtr iTime );

    //-*************************************************************************

    // ABC BASE MECHANISMS

    // These functions are used by Abc to deal with errors, validity,

    // and so on.

    //-*************************************************************************

    //! Reset returns this function set to an empty, default

    //! state.

    void reset()

    {

        m_positionsProperty.reset();

        m_velocitiesProperty.reset();

        m_indicesProperty.reset();

        m_countsProperty.reset();

        m_uvsParam.reset();

        m_normalsParam.reset();

        m_faceSets.clear();

        OGeomBaseSchema<PolyMeshSchemaInfo>::reset();

    }

    //! Valid returns whether this function set is

    //! valid.

    bool valid() const

    {

        return ( ( OGeomBaseSchema<PolyMeshSchemaInfo>::valid() &&

                   m_positionsProperty.valid() &&

                   m_indicesProperty.valid() &&

                   m_countsProperty.valid() ) ) ||

                   m_selectiveExport;

    }

    // FaceSet stuff

    OFaceSet & createFaceSet( const std::string &iFaceSetName );

    //! Appends the names of any FaceSets for this PolyMesh.

    void getFaceSetNames (std::vector <std::string> & oFaceSetNames);

    OFaceSet getFaceSet( const std::string &iFaceSetName );

    bool hasFaceSet( const std::string &iFaceSetName );

    //! Optional source name for the UV param.

    //! Must be set before the first UV sample is set.

    void setUVSourceName(const std::string & iName);

    //! unspecified-bool-type operator overload.

    //! ...

    ALEMBIC_OVERRIDE_OPERATOR_BOOL( OPolyMeshSchema::valid() );

private:

    void init( uint32_t iTsIdx, bool isSparse );

    //! Set only some property data. Does not need to be a valid schema sample

    //! This is to be used when created a file which will be layered in to

    //! another file.

    void selectiveSet( const Sample &iSamp );

    Abc::OP3fArrayProperty m_positionsProperty;

    Abc::OV3fArrayProperty m_velocitiesProperty;

    Abc::OInt32ArrayProperty m_indicesProperty;

    Abc::OInt32ArrayProperty m_countsProperty;

    // FaceSets created on this PolyMesh

    std::map <std::string, OFaceSet>  m_faceSets;

    OV2fGeomParam m_uvsParam;

    ON3fGeomParam m_normalsParam;

    // optional source name for the UVs

    std::string m_uvSourceName;

    // Write out only some properties (UVs, normals).

    // This is to export data to layer into another file later.

    bool m_selectiveExport;

    // Number of times OPolyMeshSchema::set() has been called

    size_t m_numSamples;

    uint32_t m_timeSamplingIndex;

    void createPositionsProperty();

    void createVelocitiesProperty();

    void createUVsProperty( const Sample &iSamp );

    void createNormalsProperty( const Sample &iSamp );

    // self and child bounds and ArbGeomParams and UserProperties

    // all come from OGeomBaseSchema

};

//-*****************************************************************************

// SCHEMA OBJECT

//-*****************************************************************************

typedef Abc::OSchemaObject<OPolyMeshSchema> OPolyMesh;

typedef Util::shared_ptr< OPolyMesh > OPolyMeshPtr;

} // End namespace ALEMBIC_VERSION_NS

using namespace ALEMBIC_VERSION_NS;

} // End namespace AbcGeom

} // End namespace Alembic

#endif