#pragma once
#include "base/math.hpp"

#include "geometry/angles.hpp"
#include "geometry/rect2d.hpp"

namespace test
{
  inline bool is_equal(double a1, double a2)
  {
    return (fabs(a1 - a2) < 1.0E-10);
  }

  inline bool is_equal_atan(double x, double y, double v)
  {
    return is_equal(ang::AngleTo(m2::PointD(0, 0), m2::PointD(x, y)), v);
  }

  inline bool is_equal_angle(double a1, double a2)
  {
    double const two_pi = 2.0*math::pi;
    if (a1 < 0.0) a1 += two_pi;
    if (a2 < 0.0) a2 += two_pi;

    return is_equal(a1, a2);
  }

  inline bool is_equal(m2::PointD const & p1, m2::PointD const & p2)
  {
    return p1.EqualDxDy(p2, 1.0E-8);
  }

  inline bool is_equal_center(m2::RectD const & r1, m2::RectD const & r2)
  {
    return is_equal(r1.Center(), r2.Center());
  }

  struct strict_equal
  {
    bool operator() (m2::PointD const & p1, m2::PointD const & p2) const
    {
      return p1 == p2;
    }
  };

  struct epsilon_equal
  {
    bool operator() (m2::PointD const & p1, m2::PointD const & p2) const
    {
      return is_equal(p1, p2);
    }
  };
}