/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2023 Olive Studios LLC
  Modifications Copyright (C) 2025 mikesolar

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.

***/

#include <cstring>

#include "util/rational.h"
#include "util/tests.h"

using namespace olive::core;

bool rational_to_from_string_test()
{
	Rational r(1, 30);

	std::string s = r.toString();

	Rational r2 = Rational::fromString(s);

	return r == r2;
}

bool rational_to_from_string_test2()
{
	Rational r(69, 420);

	std::string s = r.toString();

	Rational r2 = Rational::fromString(s);

	return r == r2;
}

bool rational_defaults()
{
	// By default, rationals are valid 0/1
	Rational basic_constructor;

	if (!basic_constructor.isNull()) {
		return false;
	}

	if (basic_constructor.isNaN()) {
		return false;
	}

	return true;
}

bool rational_nan()
{
	// Create a NaN with a 0 denominator
	Rational nan = Rational(0, 0);
	if (!nan.isNaN())
		return false;
	if (!nan.isNull())
		return false;

	// Create a non-NaN with a zero numerator
	Rational zero_nonnan(0, 999);
	if (!zero_nonnan.isNull())
		return false;
	if (zero_nonnan.isNaN())
		return false;

	// Create a non-NaN with a non-zero numerator
	Rational nonzer_nonnan(1, 30);
	if (nonzer_nonnan.isNull())
		return false;
	if (nonzer_nonnan.isNaN())
		return false;

	return true;
}

bool rational_nan_constant()
{
	return Rational::NaN.isNaN();
}

int main()
{
	Tester t;

	t.add("Rational::defaults", rational_defaults);
	t.add("Rational::NaN", rational_nan);
	t.add("Rational::NaN_constant", rational_nan_constant);
	t.add("Rational::toString/fromString", rational_to_from_string_test);
	t.add("Rational::toString/fromString2", rational_to_from_string_test2);

	return t.exec();
}