/***************************************************************************
 *   Copyright (C) 2005-2019 by the FIFE team                              *
 *   http://www.fifengine.net                                              *
 *   This file is part of FIFE.                                            *
 *                                                                         *
 *   FIFE is free software; you can redistribute it and/or                 *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library 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     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

#ifndef FIFE_ENGINESETTINGS_H
#define FIFE_ENGINESETTINGS_H

// Standard C++ library includes
#include <vector>

// 3rd party library includes

// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "util/base/exception.h"
#include "video/renderbackend.h"

namespace FIFE {
	class NotSupported;

	/** This class defines the engine settings on engine init
	 *
	 */
	class EngineSettings {
	public:
		/** Constructor
		 */
		EngineSettings();

		/** Destructor
		 */
		~EngineSettings();

		/** Sets bits per pixel
		 * @see getPossibleBitsPerPixel
		 */
		void setBitsPerPixel(uint8_t bitsperpixel);

		/** Gets currently set bits per pixel value
		 */
		uint8_t getBitsPerPixel() const {
			return m_bitsperpixel;
		}

		/** Gets all possible bits per pixel values
		 */
		std::vector<uint8_t> getPossibleBitsPerPixel() const;

		/** Sets fullscreen / windowed mode
		 */
		void setFullScreen(bool fullscreen) {
			m_fullscreen = fullscreen;
		}

		/** True, if set to fullscreen. False = windowed
		 */
		bool isFullScreen() const {
			return m_fullscreen;
		}

		/** Sets refresh rate
		 */
		void setRefreshRate(uint16_t rate) {
			m_refreshRate = rate;
		}

		/** Gets the refresh rate
		 */
		uint16_t getRefreshRate() const {
			return m_refreshRate;
		}

		/** Sets display index, starts with 0
		 */
		void setDisplay(uint8_t display) {
			m_displayIndex = display;
		}

		/** Gets the display index, starts with 0
		 */
		uint8_t getDisplay() const {
			return m_displayIndex;
		}

		/** Sets Vsync. Synchronized updates with vertical refresh rate.
		 */
		void setVSync(bool vsync) {
			m_vSync = vsync;
		}

		/** True, if vsync is enable, otherwise false.
		 */
		bool isVSync() const {
			return m_vSync;
		}

		/** Sets the used SDL render driver. Values depends on platform
		 * and is useless for the OpenGL backend.
		 * If none is set, SDL use the first one that supports the requested flags.
		 * @see DeviceCaps::getAvailableRenderDrivers()
		 */
		void setSDLDriver(const std::string& driver) {
			m_renderDriver = driver;
		}

		/** Gets the used SDL render driver.
		 * Default is a empty string, that indicates SDL chooses the driver.
		 * @see setSDLDriver()
		 */
		const std::string& getSDLDriver() const {
			return m_renderDriver;
		}

		/** Sets initial engine sound volume
		 *  @see getInitialMaxVolume
		 */
		void setInitialVolume(float volume);

		/** Gets initial engine sound volume
		 */
		float getInitialVolume() const {
			return m_initialvolume;
		}

		/** Gets maximum volume that can be set
		 */
		float getMaxVolume() const;

		/** Sets name for renderbackend
		 *  @see getPossibleRenderBackends
		 */
		void setRenderBackend(const std::string& renderbackend);

		/** Gets currently set renderbackend name
		 */
		const std::string& getRenderBackend() const {
			return m_renderbackend;
		}

		/** Gets currently set renderbackend name
		 */
		std::string getRenderBackend() {
			return m_renderbackend;
		}

		/** Gets all possible renderbackend names
		 */
		std::vector<std::string> getPossibleRenderBackends();

		/** Sets if fake alpha is removed in SDL renderbackend
		 */
		void setSDLRemoveFakeAlpha(bool sdlremovefakealpha);

		/** Tells if fake alpha is removed in SDL renderbackend
		 */
		bool isSDLRemoveFakeAlpha() const {
			return m_sdlremovefakealpha;
		}

		/** Sets if images are compress by video driver in OpenGL renderbackend
		*/
		void setGLCompressImages(bool oglcompressimages);

		/** Tells if images are compress by video driver in OpenGL renderbackend
		*/
		bool isGLCompressImages() const {
			return m_oglcompressimages;
		}

		/** Sets if OpenGL renderbackend should use FramebufferObject (when available)
		*/
		void setGLUseFramebuffer(bool ogluseframebuffer);

		/** Tells if OpenGL renderbackend should use FramebufferObject
		*/
		bool isGLUseFramebuffer() const {
			return m_ogluseframebuffer;
		}

		/** Sets if OpenGL renderbackend should use NPOT Textures (when available)
		*/
		void setGLUseNPOT(bool oglusenpot);

		/** Tells if OpenGL renderbackend should use NPOT Textures
		*/
		bool isGLUseNPOT() const {
			return m_oglusenpot;
		}

		/** Sets texture filtering method for OpenGL renderbackend.
		 */
		void setGLTextureFiltering(TextureFiltering filter);

		/** Gets current texture filter which uses OpenGL.
		 */
		TextureFiltering getGLTextureFiltering() const;

		/** Sets if OpenGL renderbackend should use mipmapping.
		 */
		void setGLUseMipmapping(bool mipmapping);

		/** Tells if OpenGL renderbackend should use mipmapping.
		 */
		bool isGLUseMipmapping() const;

		/** Sets if OpenGL renderbackend should render only monochrome.
		 */
		void setGLUseMonochrome(bool monochrome);
		
		/** Tells if OpenGL renderbackend should render only monochrome.
		 */
		bool isGLUseMonochrome() const;

		/** Sets if OpenGL renderbackend should use depth buffer.
		 */
		void setGLUseDepthBuffer(bool buffer);

		/** Tells if OpenGL renderbackend should use depth buffer.
		 */
		bool isGLUseDepthBuffer() const;

		/** Sets alpha test value for OpenGL renderbackend.
		 */
		void setGLAlphaTestValue(float alpha);

		/** Gets current alpha test value which uses OpenGL.
		 */
		float getGLAlphaTestValue() const;

		/** Sets screen width (pixels)
		 */
		void setScreenWidth(uint16_t screenwidth);

		/** Gets screen width (pixels)
		 */
		uint16_t getScreenWidth() const {
			return m_screenwidth;
		}

		/** Sets screen height (pixels)
		 */
		void setScreenHeight(uint16_t screenheight);

		/** Gets screen height (pixels)
		 */
		uint16_t getScreenHeight() const {
			return m_screenheight;
		}

		/** Sets path for default font
		 */
		void setDefaultFontPath(const std::string& defaultfontpath);

		/** Gets current path for default font
		 */
		const std::string& getDefaultFontPath() const {
			return m_defaultfontpath;
		}

		/** Gets current path for default font
		 */
		std::string getDefaultFontPath() {
			return m_defaultfontpath;
		}

		/** Sets size for default font
		 */
		void setDefaultFontSize(uint16_t defaultfontsize);

		/** Gets size for default font
		 */
		uint16_t getDefaultFontSize() const {
			return m_defaultfontsize;
		}

		/** Sets glyphs for default font
		 */
		void setDefaultFontGlyphs(const std::string& defaultfontglyphs);

		/** Gets current glyphs for default font
		 */
		const std::string& getDefaultFontGlyphs() const {
			return m_defaultfontglyphs;
		}

		/** Gets current glyphs for default font
		 */
		std::string getDefaultFontGlyphs() {
			return m_defaultfontglyphs;
		}

		/** Sets the title of the window
		 */
		void setWindowTitle(const std::string& title);

		/** Gets the current window title
		 */
		const std::string& getWindowTitle() const {
			return m_windowtitle;
		}

		/** Gets the current window title
		 */
		std::string getWindowTitle() {
			return m_windowtitle;
		}

		/** Sets the icon that appears in the window title bar
		 */
		void setWindowIcon(const std::string& icon);

		/** Gets the icon in the window title bar
		 */
		const std::string& getWindowIcon() const {
			return m_windowicon;
		}

		/** Gets the icon in the window title bar
		 */
		std::string getWindowIcon() {
			return m_windowicon;
		}

		/** Sets whether to use the colorkey feature
		 */
		void setColorKeyEnabled(bool colorkeyenable);

		/** Gets whether the colorkey feature is in use
		 */
		bool isColorKeyEnabled() const;

		/** Sets the global colorkey to use for images
		 */
		void setColorKey(uint8_t r, uint8_t g, uint8_t b);

		/** Gets the global colorkey setting
		 */
		const SDL_Color& getColorKey() const;

		/** Sets the video driver. Values depends on platform.
		 * If none is set, SDL chooses it.
		 * @see DeviceCaps::getAvailableVideoDrivers()
		 */
		void setVideoDriver(const std::string& driver);

		/** Gets the video driver.
		 * Default is a empty string.
		 * @see setVideoDriver()
		 */
		const std::string& getVideoDriver() const;

		/** Sets the light model
		 */
		void setLightingModel(uint32_t lighting);

		/** Gets the currently set light model
		 */
		uint32_t getLightingModel() const {
			return m_lighting;
		}

		/** Sets whether to use the frame limiter
		 */
		void setFrameLimitEnabled(bool limited);

		/** Gets whether the frame limiter is in use
		 */
		bool isFrameLimitEnabled() const;

		/** Sets the frame limit
		 */
		void setFrameLimit(uint16_t framelimit);

		/** Gets the frame limit
		 */
		uint16_t getFrameLimit() const;

		/** Sets mouse sensitivity
		 */
		void setMouseSensitivity(float sens);

		/** Gets mouse sensitivity
		 */
		float getMouseSensitivity() const;

		/** Sets mouse acceleration
		 * if mouse acceleration is enabled,
		 * then the mouse sensitivity is used as speed max.
		 */
		void setMouseAccelerationEnabled(bool acceleration);

		/** Returns if mouse acceleration is enabled or not.
		 *
		 *  @return True if mouse acceleration is enabled, false if not.
		 */
		bool isMouseAccelerationEnabled() const;

		/** Enables or disables native image cursor.
		 * @see Cursor::setNativeImageCursorEnabled()
		 */
		void setNativeImageCursorEnabled(bool nativeimagecursor);

		/** Returns whether cursors set to an image or an animation are drawn natively.
		 * @see Cursor::setNativeImageCursorEnabled()
		 */
		bool isNativeImageCursorEnabled() const;

		/** Enables or disables joystick and gamepad support.
		 */
		void setJoystickSupport(bool support);

		/** Returns whether joystick and gamepad support is enabled or not.
		 */
		bool isJoystickSupport() const;

	private:
		uint8_t m_bitsperpixel;
		bool m_fullscreen;
		uint16_t m_refreshRate;
		uint8_t m_displayIndex;
		bool m_vSync;
		std::string m_renderDriver;
		float m_initialvolume;
		std::string m_renderbackend;
		bool m_sdlremovefakealpha;
		bool m_oglcompressimages;
		bool m_ogluseframebuffer;
		bool m_oglusenpot;
		bool m_oglMipmapping;
		bool m_oglMonochrome;
		TextureFiltering m_oglTextureFilter;
		bool m_oglDepthBuffer;
		float m_alphaTestValue;
		uint16_t m_screenwidth;
		uint16_t m_screenheight;
		std::string m_windowtitle;
		std::string m_windowicon;


		std::string m_defaultfontpath;
		uint16_t m_defaultfontsize;
		std::string m_defaultfontglyphs;
		bool m_iscolorkeyenabled;
		SDL_Color m_colorkey;
		std::string m_videodriver;
		uint32_t m_lighting;
		bool m_isframelimit;
		uint16_t m_framelimit;
		float m_mousesensitivity;
		bool m_mouseacceleration;
		bool m_nativeimagecursor;
		bool m_joystickSupport;
	};

}//FIFE

#endif