////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2023 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include "VideoMode.hpp"
#include "VideoModeImpl.hpp"
#include <algorithm>
#include <functional>


namespace sf {
	////////////////////////////////////////////////////////////
	VideoMode::VideoMode() :
		width(0),
		height(0),
		bitsPerPixel(0) {

	}


	////////////////////////////////////////////////////////////
	VideoMode::VideoMode(unsigned int modeWidth, unsigned int modeHeight, unsigned int modeBitsPerPixel) :
		width(modeWidth),
		height(modeHeight),
		bitsPerPixel(modeBitsPerPixel) {

	}


	////////////////////////////////////////////////////////////
	VideoMode VideoMode::getDesktopMode() {
		// Directly forward to the OS-specific implementation
		return priv::VideoModeImpl::getDesktopMode();
	}


	////////////////////////////////////////////////////////////
	const std::vector<VideoMode>& VideoMode::getFullscreenModes() {
		static std::vector<VideoMode> modes;

		// Populate the array on first call
		if (modes.empty()) {
			modes = priv::VideoModeImpl::getFullscreenModes();
			std::sort(modes.begin(), modes.end(), std::greater<VideoMode>());
		}

		return modes;
	}


	////////////////////////////////////////////////////////////
	bool VideoMode::isValid() const {
		const std::vector<VideoMode>& modes = getFullscreenModes();

		return std::find(modes.begin(), modes.end(), *this) != modes.end();
	}


	////////////////////////////////////////////////////////////
	bool operator ==(const VideoMode& left, const VideoMode& right) {
		return (left.width == right.width) &&
			(left.height == right.height) &&
			(left.bitsPerPixel == right.bitsPerPixel);
	}


	////////////////////////////////////////////////////////////
	bool operator !=(const VideoMode& left, const VideoMode& right) {
		return !(left == right);
	}


	////////////////////////////////////////////////////////////
	bool operator <(const VideoMode& left, const VideoMode& right) {
		if (left.bitsPerPixel == right.bitsPerPixel) {
			if (left.width == right.width) {
				return left.height < right.height;
			}
			else {
				return left.width < right.width;
			}
		}
		else {
			return left.bitsPerPixel < right.bitsPerPixel;
		}
	}


	////////////////////////////////////////////////////////////
	bool operator >(const VideoMode& left, const VideoMode& right) {
		return right < left;
	}


	////////////////////////////////////////////////////////////
	bool operator <=(const VideoMode& left, const VideoMode& right) {
		return !(right < left);
	}


	////////////////////////////////////////////////////////////
	bool operator >=(const VideoMode& left, const VideoMode& right) {
		return !(left < right);
	}

} // namespace sf