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/*! \internal \file
 * \brief
 * Implements nblib simulation box
 *
 * \author Victor Holanda <victor.holanda@cscs.ch>
 * \author Joe Jordan <ejjordan@kth.se>
 * \author Prashanth Kanduri <kanduri@cscs.ch>
 * \author Sebastian Keller <keller@cscs.ch>
 */
#include "nblib/box.h"

#include <cmath>

#include <algorithm>

#include "nblib/exception.h"

namespace nblib
{

Box::Box(real l) : Box(l, l, l) {}

Box::Box(real x, real y, real z) : legacyMatrix_{ { 0 } }
{
    if (std::isnan(x) || std::isinf(x) || std::isnan(y) || std::isinf(y) || std::isnan(z) || std::isinf(z))
    {
        throw InputException("Cannot have NaN or Inf box length.");
    }

    legacyMatrix_[dimX][dimX] = x;
    legacyMatrix_[dimY][dimY] = y;
    legacyMatrix_[dimZ][dimZ] = z;
}

bool operator==(const Box& rhs, const Box& lhs)
{
    using real_ptr = const real*;
    return std::equal(real_ptr(rhs.legacyMatrix()),
                      real_ptr(rhs.legacyMatrix()) + dimSize * dimSize,
                      real_ptr(lhs.legacyMatrix()));
}

} // namespace nblib
