/*
Open Asset Import Library (assimp)
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*/
/// \file X3DImporter_Macro.hpp
/// \brief Useful macrodefines.
/// \date 2015-2016
/// \author smal.root@gmail.com

#ifndef X3DIMPORTER_MACRO_HPP_INCLUDED
#define X3DIMPORTER_MACRO_HPP_INCLUDED

#include <assimp/XmlParser.h>
#include "X3DImporter.hpp"
#include <string>

namespace Assimp {

/// Used for regular checking while attribute "USE" is defined.
/// \param [in] pNode - pugi xml node to read.
/// \param [in] pDEF - string holding "DEF" value.
/// \param [in] pUSE - string holding "USE" value.
/// \param [in] pType - type of element to find.
/// \param [out] pNE - pointer to found node element.
inline X3DNodeElementBase *X3DImporter::MACRO_USE_CHECKANDAPPLY(XmlNode &node, std::string pDEF, std::string pUSE, X3DElemType pType, X3DNodeElementBase *pNE) {
    checkNodeMustBeEmpty(node);
    if (!pDEF.empty())
        Assimp::Throw_DEF_And_USE(node.name());
    if (!FindNodeElement(pUSE, pType, &pNE))
        Assimp::Throw_USE_NotFound(node.name(), pUSE);
    ai_assert(nullptr != mNodeElementCur);
    mNodeElementCur->Children.push_back(pNE); /* add found object as child to current element */

    return pNE;
}

} // namespace Assimp

/// \def MACRO_ATTRREAD_CHECKUSEDEF_RET
/// Compact variant for checking "USE" and "DEF".
/// \param [in] pNode - pugi xml node to read.
/// \param [out] pDEF_Var - output variable name for "DEF" value.
/// \param [out] pUSE_Var - output variable name for "USE" value.
#define MACRO_ATTRREAD_CHECKUSEDEF_RET(pNode, pDEF_Var, pUSE_Var) \
    do {                                                          \
    XmlParser::getStdStrAttribute(pNode, "DEF", pDEF_Var);        \
    XmlParser::getStdStrAttribute(pNode, "USE", pUSE_Var);        \
    } while (false)

/// \def MACRO_FACE_ADD_QUAD_FA(pCCW, pOut, pIn, pP1, pP2, pP3, pP4)
/// Add points as quad. Means that pP1..pP4 set in CCW order.
#define MACRO_FACE_ADD_QUAD_FA(pCCW, pOut, pIn, pP1, pP2, pP3, pP4) \
    do {                                                            \
        if (pCCW) {                                                 \
            pOut.push_back(pIn[pP1]);                               \
            pOut.push_back(pIn[pP2]);                               \
            pOut.push_back(pIn[pP3]);                               \
            pOut.push_back(pIn[pP4]);                               \
        } else {                                                    \
            pOut.push_back(pIn[pP4]);                               \
            pOut.push_back(pIn[pP3]);                               \
            pOut.push_back(pIn[pP2]);                               \
            pOut.push_back(pIn[pP1]);                               \
        }                                                           \
    } while (false)

/// \def MACRO_FACE_ADD_QUAD(pCCW, pOut, pP1, pP2, pP3, pP4)
/// Add points as quad. Means that pP1..pP4 set in CCW order.
#define MACRO_FACE_ADD_QUAD(pCCW, pOut, pP1, pP2, pP3, pP4) \
    do {                                                    \
        if (pCCW) {                                         \
            pOut.push_back(pP1);                            \
            pOut.push_back(pP2);                            \
            pOut.push_back(pP3);                            \
            pOut.push_back(pP4);                            \
        } else {                                            \
            pOut.push_back(pP4);                            \
            pOut.push_back(pP3);                            \
            pOut.push_back(pP2);                            \
            pOut.push_back(pP1);                            \
        }                                                   \
    } while (false)

#endif // X3DIMPORTER_MACRO_HPP_INCLUDED
