/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2016, assimp team
All rights reserved.

Redistribution and use of this software 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 the assimp team, nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  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,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 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 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@author: Richard Steffen, 2014

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

/** @file StepExporter.h
 * Declares the exporter class to write a scene to a Collada file
 */
#ifndef AI_STEPEXPORTER_H_INC
#define AI_STEPEXPORTER_H_INC

#include <assimp/ai_assert.h>
#include <assimp/matrix4x4.h>
#include <assimp/Exporter.hpp>
#include <sstream>


struct aiScene;
struct aiNode;

namespace Assimp
{

/// Helper class to export a given scene to a StepFile.
/// Note: an StepFile uses a left hand system. Assimp used a right hand system (OpenGL), therefore we have to transform everything
class StepExporter
{
public:
    /// Constructor for a specific scene to export
    StepExporter(const aiScene* pScene, IOSystem* pIOSystem, const std::string& path, const std::string& file, const ExportProperties* pProperties);

protected:
    /// Starts writing the contents
    void WriteFile();

public:

    /// Stringstream to write all output into
    std::stringstream mOutput;

protected:

    /// hold the properties pointer
    const ExportProperties* mProperties;

    /// The IOSystem for output
    IOSystem* mIOSystem;

    /// Name of the file (without extension) where the scene will be exported
    std::string mFile;

    /// Path of the directory where the scene will be exported
    std::string mPath;

    /// The scene to be written
    const aiScene* mScene;

    /// current line end string for simple stream insertion
    std::string endstr;

    /// accumultated transformations for nodes
    std::map<const aiNode*, aiMatrix4x4> trafos;

    /// map to all meshed of nodes
    typedef std::multimap<const aiNode*, unsigned int> MeshesByNodeMap;
    MeshesByNodeMap meshes;

};

}

#endif // !! AI_STEPEXPORTER_H_INC
