#include "testing/testing.hpp"

#include "geometry/any_rect2d.hpp"

#include "std/cmath.hpp"

UNIT_TEST(AnyRect_TestConvertTo)
{
  m2::AnyRectD r(m2::PointD(0, 0), math::pi / 4, m2::RectD(0, 0, 10, 10));

  m2::PointD pt1(100, 0);

  double const sqrt2 = sqrt(2.0);
  TEST(r.ConvertTo(pt1).EqualDxDy(m2::PointD(100 / sqrt2, -100 / sqrt2), 10e-5), ());
  TEST(r.ConvertTo(m2::PointD(100, 100)).EqualDxDy(m2::PointD(100 * sqrt2, 0), 10e-5), ());

  m2::AnyRectD r1(m2::PointD(100, 100), math::pi / 4, m2::RectD(0, 0, 10, 10));

  m2::PointD pt(100, 100 + 50 * sqrt2);

  TEST(r1.ConvertTo(pt).EqualDxDy(m2::PointD(50, 50), 10e-5), ());
}

UNIT_TEST(AnyRect_TestConvertFrom)
{
  m2::AnyRectD r(m2::PointD(100, 100), math::pi / 6, m2::RectD(0, 0, 10, 10));

  double const sqrt3 = sqrt(3.0);
  TEST(r.ConvertFrom(m2::PointD(50, 0)).EqualDxDy(m2::PointD(100 + 50 * sqrt3 / 2 , 100 + 50 * 1 / 2.0), 10e-5), ());
  TEST(r.ConvertTo(m2::PointD(100 + 50 * sqrt3 / 2, 100 + 50 * 1.0 / 2)).EqualDxDy(m2::PointD(50, 0), 10e-5), ());
}

UNIT_TEST(AnyRect_ZeroRect)
{
  m2::AnyRectD r0(m2::RectD(0, 0, 0, 0));
  m2::PointD const centerPt(300.0, 300.0);
  m2::AnyRectD r1(m2::Offset(r0, centerPt));
  TEST_EQUAL(r1.GlobalCenter(), centerPt, ());
  m2::AnyRectD r2(m2::Inflate(r0, 2.0, 2.0));
  TEST_EQUAL(r2.GetLocalRect(), m2::RectD(-2, -2, 2, 2), ());
}

UNIT_TEST(AnyRect_TestIntersection)
{
  m2::AnyRectD r0(m2::PointD(93.196, 104.21),  1.03, m2::RectD(2, 0, 4, 15));
  m2::AnyRectD r1(m2::PointD(99.713, 116.02), -1.03, m2::RectD(0, 0, 14, 14));

  m2::PointD pts[4];
  r0.GetGlobalPoints(pts);
  r1.ConvertTo(pts, 4);
  m2::RectD r2(pts[0].x, pts[0].y, pts[0].x, pts[0].y);
  r2.Add(pts[1]);
  r2.Add(pts[2]);
  r2.Add(pts[3]);

  TEST(r1.GetLocalRect().IsIntersect(r2) == false, ());
}

UNIT_TEST(AnyRect_TestIsIntersect)
{
  m2::AnyRectD r0(m2::PointD(100, 100), math::pi / 6, m2::RectD(0, 0, 50, 20));
  m2::AnyRectD r1(m2::PointD(100, 100), math::pi / 6, m2::RectD(0, -10, 50, 10));
  m2::AnyRectD r2(m2::PointD(100, 100), math::pi / 6, m2::RectD(0, -21, 50, -1));

  TEST(r0.IsIntersect(r1), ());
  TEST(r1.IsIntersect(r2), ());
  TEST(!r0.IsIntersect(r2), ());
  TEST(r1.IsIntersect(r2), ());

  m2::AnyRectD r3(m2::PointD(50, 50), math::pi / 8, m2::RectD(0, 0, 80, 30));
  TEST(r0.IsIntersect(r3), ());
}

UNIT_TEST(AnyRect_SetSizesToIncludePoint)
{
  m2::AnyRectD rect(m2::PointD(100, 100), math::pi / 6, m2::RectD(0, 0, 50, 50));

  TEST(!rect.IsPointInside(m2::PointD(0, 0)), ());
  TEST(!rect.IsPointInside(m2::PointD(200, 200)), ());

  rect.SetSizesToIncludePoint(m2::PointD(0, 0));
  TEST(rect.IsPointInside(m2::PointD(0, 0)), ());

  rect.SetSizesToIncludePoint(m2::PointD(200, 200));
  TEST(rect.IsPointInside(m2::PointD(200, 200)), ());
}