/**
 *    Copyright (C) 2026 andromeda <andromeda@galaxious.de>
 *
 *    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 <https://www.gnu.org/licenses/>.
**/

module rgfw;

bitstruct InitFlags : char
{
	bool opengl : 0;
	bool egl : 1;
	bool vulkan : 2;
	bool x11 : 3;
}

typedef Info = void;
typedef Window = void;
typedef Window_src = void;

constdef Format : char
{
	RGB8 = 0,
	BGR8,
	RGBA8,
	ARGB8,
	BGRA8,
	ABGR8,
	COUNT,
}

struct ColorLayout
{
	int r;
	int g;
	int b;
	int a;
	uint channels;
}

alias ConvertImageDataFunc = fn void(char*, char*, ColorLayout*, ColorLayout*, usz);

typedef NativeImage = void;
typedef Surface = void;

struct GammaRamp
{
	ushort* red;
	ushort* green;
	ushort* blue;
	usz count;
}

struct MonitorMode
{
	int w;
	int h;
	float refresh_rate;
	char red;
	char blue;
	char green;
	void* src;
}

typedef MonitorNode = void;

struct Monitor
{
	int x;
	int y;
	CChar[128] name;
	float scale_x;
	float scale_y;
	float pixel_ratio;
	float phys_w;
	float phys_h;
	MonitorMode mode;
	void* userPtr;
	MonitorNode* node;
}

constdef ModeRequest : char
{
	SCALE   = 1 << 0,
	REFRESH = 1 << 1,
	RGB     = 1 << 2,
	ALL     = SCALE | REFRESH | RGB,
}

typedef Mouse = void;

constdef Key : char
{
	KEY_NULL         = 0,
	KEY_ESCAPE       = 27,
	KEY_BACKTICK     = '`',
	KEY_0            = '0',
	KEY_1            = '1',
	KEY_2            = '2',
	KEY_3            = '3',
	KEY_4            = '4',
	KEY_5            = '5',
	KEY_6            = '6',
	KEY_7            = '7',
	KEY_8            = '8',
	KEY_9            = '9',
	KEY_MINUS        = '-',
	KEY_EQUAL        = '=',
	KEY_EQUALS       = KEY_EQUAL,
	KEY_BACKSPACE    = '\b',
	KEY_TAB          = '\t',
	KEY_SPACE        = ' ',
	KEY_A            = 'a',
	KEY_B            = 'b',
	KEY_C            = 'c',
	KEY_D            = 'd',
	KEY_E            = 'e',
	KEY_F            = 'f',
	KEY_G            = 'g',
	KEY_H            = 'h',
	KEY_I            = 'i',
	KEY_J            = 'j',
	KEY_K            = 'k',
	KEY_L            = 'l',
	KEY_M            = 'm',
	KEY_N            = 'n',
	KEY_O            = 'o',
	KEY_P            = 'p',
	KEY_Q            = 'q',
	KEY_R            = 'r',
	KEY_S            = 's',
	KEY_T            = 't',
	KEY_U            = 'u',
	KEY_V            = 'v',
	KEY_W            = 'w',
	KEY_X            = 'x',
	KEY_Y            = 'y',
	KEY_Z            = 'z',
	KEY_PERIOD       = '.',
	KEY_COMMA        = ',',
	KEY_SLASH        = '/',
	KEY_BRACKET      = '[',
	KEY_CLOSEBRACKET = ']',
	KEY_SEMICOLON    = ';',
	KEY_APOSTROPHE   = '\'',
	KEY_BACKSLASH    = '\\',
	KEY_RETURN       = '\n',
	KEY_ENTER        = KEY_RETURN,
	KEY_DELETE       = 127,
	KEY_F1,
	KEY_F2,
	KEY_F3,
	KEY_F4,
	KEY_F5,
	KEY_F6,
	KEY_F7,
	KEY_F8,
	KEY_F9,
	KEY_F10,
	KEY_F11,
	KEY_F12,
	KEY_F13,
	KEY_F14,
	KEY_F15,
	KEY_F16,
	KEY_F17,
	KEY_F18,
	KEY_F19,
	KEY_F20,
	KEY_F21,
	KEY_F22,
	KEY_F23,
	KEY_F24,
	KEY_F25,
	KEY_CAPSLOCK,
	KEY_SHIFTL,
	KEY_CONTROLL,
	KEY_ALTL,
	KEY_SUPERL,
	KEY_SHIFTR,
	KEY_CONTROLR,
	KEY_ALTR,
	KEY_SUPERR,
	KEY_UP,
	KEY_DOWN,
	KEY_LEFT,
	KEY_RIGHT,
	KEY_INSERT,
	KEY_MENU,
	KEY_END,
	KEY_HOME,
	KEY_PAGEUP,
	KEY_PAGEDOWN,
	KEY_NUMLOCK,
	KEY_PADSLASH,
	KEY_PADMULTIPLY,
	KEY_PADPLUS,
	KEY_PADMINUS,
	KEY_PADEQUAL,
	KEY_PADEQUALS    = KEY_PADEQUAL,
	KEY_PAD1,
	KEY_PAD2,
	KEY_PAD3,
	KEY_PAD4,
	KEY_PAD5,
	KEY_PAD6,
	KEY_PAD7,
	KEY_PAD8,
	KEY_PAD9,
	KEY_PAD0,
	KEY_PADPERIOD,
	KEY_PADRETURN,
	KEY_SCROLLLOCK,
	KEY_PRINTSCREEN,
	KEY_PAUSE,
	KEY_WORLD1,
	KEY_WORLD2,
	KEY_LAST         = 255,
}

constdef MouseButton : char
{
	LEFT = 0,
	MIDDLE,
	RIGHT,
	MISC1,
	MISC2,
	MISC3,
	MISC4,
	MISC5,
	FINAL,
}

bitstruct Keymod : char
{
	bool caps_lock : 0;
	bool num_lock : 1;
	bool control : 2;
	bool alt : 3;
	bool shift : 4;
	bool super : 5;
	bool scroll_lock : 6;
}

constdef DndActionType : char
{
	NONE = 0,
	ENTER,
	MOVE,
	EXIT,
}

constdef DataTransferType : char
{
	NONE = 0,
	TEXT,
	FILE,
	URL,
	IMAGE,
	UNKNOWN,
}

struct DataTransfer
{
	ZString data;
	usz length;
	DataTransferType type;
}

struct DataDropNode
{
	ZString data;
	usz size;
	DataTransferType type;
	DataDropNode* next;
}

constdef EventType : char
{
	EVENT_NONE = 0,
	KEY_PRESSED,
	KEY_RELEASED,
	KEY_CHAR,
	MOUSE_BUTTON_PRESSED,
	MOUSE_BUTTON_RELEASED,
	MOUSE_SCROLL,
	MOUSE_MOTION,
	MOUSE_RAW_MOTION,
	MOUSE_ENTER,
	MOUSE_LEAVE,
	WINDOW_MOVED,
	WINDOW_RESIZED,
	WINDOW_FOCUS_IN,
	WINDOW_FOCUS_OUT,
	WINDOW_REFRESH,
	WINDOW_CLOSE,
	WINDOW_MAXIMIZED,
	WINDOW_MINIMIZED,
	WINDOW_RESTORED,
	DATA_DROP,
	DATA_DRAG,
	SCALE_UPDATED,
	MONITOR_CONNECTED,
	MONITOR_DISCONNECTED,
	EVENT_COUNT,
}

bitstruct EventFlag : uint @overlap
{
	bool key_pressed : (char)EventType.KEY_PRESSED;
	bool key_released : (char)EventType.KEY_RELEASED;
	bool key_char : (char)EventType.KEY_CHAR;
	bool mouse_scroll : (char)EventType.MOUSE_SCROLL;
	bool mouse_button_pressed : (char)EventType.MOUSE_BUTTON_PRESSED;
	bool mouse_button_released : (char)EventType.MOUSE_BUTTON_RELEASED;
	bool mouse_motion : (char)EventType.MOUSE_MOTION;
	bool mouse_raw_motion : (char)EventType.MOUSE_RAW_MOTION;
	bool mouse_enter : (char)EventType.MOUSE_ENTER;
	bool mouse_leave : (char)EventType.MOUSE_LEAVE;
	bool window_moved : (char)EventType.WINDOW_MOVED;
	bool window_resized : (char)EventType.WINDOW_RESIZED;
	bool window_focus_in : (char)EventType.WINDOW_FOCUS_IN;
	bool window_focus_out : (char)EventType.WINDOW_FOCUS_OUT;
	bool window_refresh : (char)EventType.WINDOW_REFRESH;
	bool window_maximized : (char)EventType.WINDOW_MAXIMIZED;
	bool window_minimized : (char)EventType.WINDOW_MINIMIZED;
	bool window_restored : (char)EventType.WINDOW_RESTORED;
	bool scale_updated : (char)EventType.SCALE_UPDATED;
	bool window_close : (char)EventType.WINDOW_CLOSE;
	bool data_drop : (char)EventType.DATA_DROP;
	bool data_drag : (char)EventType.DATA_DRAG;
	bool monitor_connected : (char)EventType.MONITOR_CONNECTED;
	bool monitor_disconnected : (char)EventType.MONITOR_DISCONNECTED;
	bool key_events : (char)EventType.KEY_PRESSED | (char)EventType.KEY_RELEASED | (char)EventType.KEY_CHAR;
	bool mouse_events : (char)EventType.MOUSE_BUTTON_PRESSED | (char)EventType.MOUSE_BUTTON_RELEASED | (char)EventType.MOUSE_MOTION
		| (char)EventType.MOUSE_ENTER
		| (char)EventType.MOUSE_LEAVE
		| (char)EventType.MOUSE_SCROLL
		| (char)EventType.MOUSE_RAW_MOTION;
	bool window_events : (char)EventType.WINDOW_MOVED | (char)EventType.WINDOW_RESIZED | (char)EventType.WINDOW_REFRESH
		| (char)EventType.WINDOW_MAXIMIZED
		| (char)EventType.WINDOW_RESTORED
		| (char)EventType.SCALE_UPDATED;
	bool window_focus_events : (char)EventType.WINDOW_FOCUS_IN | (char)EventType.WINDOW_FOCUS_OUT;
	bool data_drag_drop_events : (char)EventType.DATA_DROP | (char)EventType.DATA_DRAG;
	bool monitor_events : (char)EventType.MONITOR_CONNECTED | (char)EventType.MONITOR_DISCONNECTED;
}

const EventFlag ALL_EVENTS = {
	.key_events,
	.mouse_events,
	.window_events,
	.window_focus_events,
	.data_drag_drop_events,
	.monitor_events
};

struct CommonEvent
{
	EventType type;
	Window* win;
}

struct WindowFocusEvent
{
	inline CommonEvent meta;
	bool state;
}

struct MouseButtonEvent
{
	inline CommonEvent meta;
	MouseButton value;
	bool state;
}

struct MouseDeltaEvent
{
	inline CommonEvent meta;
	float x;
	float y;
}

struct MousePosEvent
{
	inline CommonEvent meta;
	int x;
	int y;
	bool inWindow;
}

struct KeyEvent
{
	inline CommonEvent meta;
	Key value;
	bool repeat;
	Keymod mod;
	bool state;
}

struct KeyCharEvent
{
	inline CommonEvent meta;
	Char32 value;
}

struct DataDropEvent
{
	inline CommonEvent meta;
	DataDropNode* value;
}

struct DataDragEvent
{
	inline CommonEvent meta;
	int x;
	int y;
	DndActionType action;
	DataTransferType dataType;
}

struct ScaleUpdatedEvent
{
	inline CommonEvent meta;
	float x;
	float y;
}

struct MonitorEvent
{
	inline CommonEvent meta;
	Monitor* monitor;
	bool state;
}

struct WindowUpdateEvent
{
	inline CommonEvent meta;
	int x;
	int y;
	int w;
	int h;
}

union Event
{
	EventType type;
	CommonEvent common;
	WindowFocusEvent focus;
	WindowUpdateEvent update;
	MouseButtonEvent button;
	MouseDeltaEvent delta;
	MousePosEvent mouse;
	KeyEvent key;
	KeyCharEvent keyChar;
	DataDropEvent drop;
	DataDragEvent drag;
	ScaleUpdatedEvent scale;
	MonitorEvent monitor;
}

constdef EventWait : int
{
	NO_WAIT   =  0,
	WAIT_NEXT = -1,
}

alias GenericFunc = fn void(Event*);

struct Callbacks
{
	GenericFunc* arr;
}

constdef FullscreenMode : char
{
	NONE,
	BORDERLESS,
	EXCLUSIVE,
}

bitstruct WindowFlags : uint @overlap
{
	bool no_border : 0;
	bool no_resize : 1;
	bool allow_DND : 2;
	bool hide_mouse : 3;
	bool fullscreen_exclusive : 4;
	bool translucent : 5;
	bool transparent : 5;
	bool center : 6;
	bool raw_mouse : 7;
	bool scale_to_monitor : 8;
	bool hide : 9;
	bool maximize : 10;
	bool center_cursor : 11;
	bool floating : 12;
	bool focus_on_show : 13;
	bool minimize : 14;
	bool focus : 15;
	bool capture_mouse : 16;
	bool openGL : 17;
	bool egl : 18;
	bool fullscreen_borderless : 19;
	bool capture_raw_mouse : 7 | 16;
}

bitstruct Icon : char @overlap
{
	bool taskbar : 0;
	bool window : 1;
	bool both : 0 | 1;
}

constdef MouseIcon : char
{
	NORMAL     = 0,
	ARROW,
	IBEAM,
	TEXT       = IBEAM,
	CROSSHAIR,
	POINTING_HAND,
	RESIZE_EW,
	RESIZE_NS,
	RESIZE_NWSE,
	RESIZE_NESW,
	RESIZE_NW,
	RESIZE_N,
	RESIZE_NE,
	RESIZE_E,
	RESIZE_SE,
	RESIZE_S,
	RESIZE_SW,
	RESIZE_W,
	RESIZE_ALL,
	NOT_ALLOWED,
	WAIT,
	PROGRESS,
	ICON_COUNT,
	ICON_FINAL = 16, // padding
}

constdef FlashRequest : char
{
	CANCEL = 0,
	BRIEFLY,
	UNTIL_FOCUSED,
}

constdef DebugType : char
{
	ERROR = 0,
	WARNING,
	INFO,
}

constdef ErrorCode : char
{
	NO_ERROR = 0,
	ERR_OUT_OF_MEMORY,
	ERR_OPENGL_CONTEXT,
	ERR_EGL_CONTEXT,
	ERR_WAYLAND,
	ERR_X11,
	ERR_DIRECTX_CONTEXT,
	ERR_IOKIT,
	ERR_CLIPBOARD,
	ERR_FAILED_FUNC_LOAD,
	ERR_BUFFER,
	ERR_METAL,
	ERR_OBJC_RUNTIME,
	ERR_PLATFORM,
	ERR_EVENT_QUEUE,
	ERR_NO_INIT,
	INFO_WINDOW,
	INFO_BUFFER,
	INFO_GLOBAL,
	INFO_OPENGL,
	WARNING_WAYLAND,
	WARNING_OPENGL,
}

struct DebugInfo
{
	DebugType type;
	ErrorCode code;
	ZString msg;
}

alias DebugFunc = fn void(DebugInfo*);
alias Proc = fn void();
typedef GlContext @feat(OPENGL) = void;
typedef EglContext @feat(OPENGL) = void;

constdef GlReleaseBehavior : int @feat(OPENGL)
{
	FLUSH = 0,
	NONE,
}

constdef GlProfile : int @feat(OPENGL)
{
	CORE = 0,
	FORWARD_COMPATIBILITY,
	COMPATIBILITY,
	ES,
	WEB,
}

constdef GlRenderer : int @feat(OPENGL)
{
	ACCELERATED = 0,
	SOFTWARE,
}

struct GlHints @feat(OPENGL)
{
	int stencil;
	int samples;
	int stereo;
	int auxBuffers;
	int doubleBuffer;
	int red;
	int green;
	int blue;
	int alpha;
	int depth;
	int accumRed;
	int accumGreen;
	int accumBlue;
	int accumAlpha;
	bool sRGB;
	bool robustness;
	bool debug;
	bool noError;
	GlReleaseBehavior releaseBehavior;
	GlProfile profile;
	int major;
	int minor;
	GlContext* share;
	EglContext* shareEGL;
	GlRenderer renderer;
}

extern fn void* alloc(usz) @cname("RGFW_alloc");
extern fn void free(void*) @cname("RGFW_free");
extern fn usz sizeof_info() @cname("RGFW_sizeofInfo");
extern fn int init(ZString, InitFlags) @cname("RGFW_init");
extern fn void deinit() @cname("RGFW_deinit");
extern fn int init_ptr(ZString, InitFlags, Info*) @cname("RGFW_init_ptr");
extern fn void deinit_ptr(Info*) @cname("RGFW_deinit_ptr");
extern fn void set_info(Info*) @cname("RGFW_setInfo");
extern fn Info* get_info() @cname("RGFW_getInfo");
extern fn usz sizeof_window() @cname("RGFW_sizeofWindow");
extern fn usz sizeof_window_src() @cname("RGFW_sizeofWindowSrc");
extern fn bool using_wayland() @cname("RGFW_usingWayland");
extern fn void* get_layer_OSX() @cname("RGFW_getLayer_OSX");
extern fn void* get_display_X11() @cname("RGFW_getDisplay_X11");
extern fn void* get_display_wayland() @cname("RGFW_getDisplay_Wayland");
extern fn void move_to_macos_resource_dir() @cname("RGFW_moveToMacOSResourceDir");
extern fn void copy_image_data(char*, int, int, Format, char*, Format, ConvertImageDataFunc) @cname("RGFW_copyImageData");
extern fn usz sizeof_native_image() @cname("RGFW_sizeofNativeImage");
extern fn usz sizeof_surface() @cname("RGFW_sizeofSurface");
extern fn Format native_format() @cname("RGFW_nativeFormat");
extern fn Surface* create_surface(char*, int, int, Format) @cname("RGFW_createSurface");
extern fn bool create_surface_ptr(char*, int, int, Format, Surface*) @cname("RGFW_createSurfacePtr");
extern fn NativeImage* Surface.get_native_image(&self) @cname("RGFW_surface_getNativeImage");
extern fn void Surface.free(&self) @cname("RGFW_surface_free");
extern fn void Surface.free_ptr(&self) @cname("RGFW_surface_freePtr");
extern fn Mouse* create_mouse(char*, int, int, Format) @cname("RGFW_createMouse");
extern fn Mouse* create_mouse_standard(MouseIcon) @cname("RGFW_createMouseStandard");
extern fn void Mouse.free(Mouse*) @cname("RGFW_freeMouse");
extern fn MonitorMode* Monitor.get_modes(&self, usz*) @cname("RGFW_monitor_getModes");
extern fn void free_modes(MonitorMode*) @cname("RGFW_freeModes");
extern fn usz Monitor.get_modes_ptr(&self, MonitorMode**) @cname("RGFW_monitor_getModesPtr");
extern fn bool Monitor.find_closest_mode(&self, MonitorMode*, MonitorMode*) @cname("RGFW_monitor_findClosestMode");
extern fn GammaRamp* Monitor.get_gamma_ramp(&self) @cname("RGFW_monitor_getGammaRamp");
extern fn void GammaRamp.free(&self) @cname("RGFW_freeGammaRamp");
extern fn usz Monitor.get_gamma_ramp_ptr(&self, GammaRamp*) @cname("RGFW_monitor_getGammaRampPtr");
extern fn bool Monitor.set_gamma_ramp(&self, GammaRamp*) @cname("RGFW_monitor_setGammaRamp");
extern fn bool Monitor.set_gamma(&self, float) @cname("RGFW_monitor_setGamma");
extern fn bool Monitor.set_gamma_ptr(&self, float, ushort*, usz) @cname("RGFW_monitor_setGammaPtr");
extern fn bool Monitor.get_workarea(&self, int*, int*, int*, int*) @cname("RGFW_monitor_getWorkarea");
extern fn bool Monitor.get_position(&self, int*, int*) @cname("RGFW_monitor_getPosition");
extern fn ZString Monitor.get_name(&self) @cname("RGFW_monitor_getName");
extern fn bool Monitor.get_scale(&self, float*, float*) @cname("RGFW_monitor_getScale");
extern fn bool Monitor.get_physical_size(&self, float*, float*) @cname("RGFW_monitor_getPhysicalSize");
extern fn void Monitor.set_user_ptr(&self, void*) @cname("RGFW_monitor_setUserPtr");
extern fn void* Monitor.get_user_ptr(&self) @cname("RGFW_monitor_getUserPtr");
extern fn bool Monitor.get_mode(&self, MonitorMode*) @cname("RGFW_monitor_getMode");
extern fn void poll_monitors() @cname("RGFW_pollMonitors");
extern fn void free_monitors() @cname("RGFW_freeMonitors");
extern fn Monitor** get_monitors(usz*) @cname("RGFW_getMonitors");
extern fn bool get_monitors_ptr(usz, Monitor**, usz*) @cname("RGFW_getMonitorsPtr");
extern fn Monitor* get_primary_monitor() @cname("RGFW_getPrimaryMonitor");
extern fn bool Monitor.request_mode(&self, MonitorMode*, ModeRequest) @cname("RGFW_monitor_requestMode");
extern fn bool Monitor.set_mode(&self, MonitorMode*) @cname("RGFW_monitor_setMode");
extern fn bool monitor_mode_compare(MonitorMode*, MonitorMode*, ModeRequest) @cname("RGFW_monitorModeCompare");
extern fn bool Monitor.scale_to_window(&self, Window*) @cname("RGFW_monitor_scaleToWindow");
extern fn void set_raw_mouse_mode(bool) @cname("RGFW_setRawMouseMode");
extern fn void set_build_DND(bool) @cname("RGFW_setbuildDND");
extern fn void wait_for_event(int) @cname("RGFW_waitForEvent");
extern fn void set_queue_events(bool) @cname("RGFW_setQueueEvents");
extern fn GenericFunc* set_event_callback(EventType, GenericFunc) @cname("RGFW_setEventCallback");
extern fn void set_dual_event_callback(EventType, GenericFunc, GenericFunc*, GenericFunc*) @cname("RGFW_setDualEventCallback");
extern fn void set_all_event_callbacks(GenericFunc, Callbacks*) @cname("RGFW_setAllEventCallbacks");
extern fn void poll_events() @cname("RGFW_pollEvents");
extern fn void stop_check_events() @cname("RGFW_stopCheckEvents");
extern fn bool check_event(Event*) @cname("RGFW_checkEvent");
extern fn bool check_queued_event(Event*) @cname("RGFW_checkQueuedEvent");
extern fn bool Key.is_pressed(self) @cname("RGFW_isKeyPressed");
extern fn bool Key.is_released(self) @cname("RGFW_isKeyReleased");
extern fn bool Key.is_down(self) @cname("RGFW_isKeyDown");
extern fn bool MouseButton.is_pressed(self) @cname("RGFW_isMousePressed");
extern fn bool MouseButton.is_released(self) @cname("RGFW_isMouseReleased");
extern fn bool MouseButton.is_down(self) @cname("RGFW_isMouseDown");
extern fn void get_mouse_scroll(float*, float*) @cname("RGFW_getMouseScroll");
extern fn void get_mouse_vector(float*, float*) @cname("RGFW_getMouseVector");
extern fn Window* create_window(ZString, int, int, int, int, WindowFlags) @cname("RGFW_createWindow");
extern fn Window* create_window_ptr(ZString, int, int, int, int, WindowFlags, Window*) @cname("RGFW_createWindowPtr");
extern fn Surface* Window.create_surface(&self, char*, int, int, Format) @cname("RGFW_window_createSurface");
extern fn Surface* Window.create_surface_ptr(&self, char*, int, int, Format, Surface*) @cname("RGFW_window_createSurfacePtr");
extern fn void Surface.set_convert_func(&self, ConvertImageDataFunc) @cname("RGFW_surface_setConvertFunc");
extern fn void Window.blit_suface(&self, Surface*) @cname("RGFW_window_blitSurface");
extern fn bool Window.get_position(&self, int*, int*) @cname("RGFW_window_getPosition");
extern fn bool Window.get_size(&self, int*, int*) @cname("RGFW_window_getSize");
extern fn bool Window.get_size_in_pixels(&self, int*, int*) @cname("RGFW_window_getSizeInPixels");
extern fn uint Window.get_flags(&self) @cname("RGFW_window_getFlags");
extern fn Key Window.get_exit_key(&self) @cname("RGFW_window_getExitKey");
extern fn void Window.set_exit_key(&self, Key) @cname("RGFW_window_setExitKey");
extern fn void Window.set_enabled_events(&self, EventFlag) @cname("RGFW_window_setEnabledEvents");
extern fn EventFlag Window.get_enabled_events(&self) @cname("RGFW_window_getEnabledEvents");
extern fn void Window.set_disabled_events(&self, EventFlag) @cname("RGFW_window_setDisabledEvents");
extern fn void Window.set_event_state(&self, EventFlag, bool) @cname("RGFW_window_setEventState");
extern fn void* Window.get_user_ptr(&self) @cname("RGFW_window_getUserPtr");
extern fn void Window.set_user_ptr(&self, void*) @cname("RGFW_window_setUserPtr");
extern fn Window_src* Window.get_src(&self) @cname("RGFW_window_getSrc");
extern fn void Window.set_layer_OSX(&self, void*) @cname("RGFW_window_setLayer_OSX");
extern fn void* Window.get_view_OSX(&self) @cname("RGFW_window_getView_OSX");
extern fn void* Window.get_window_OSX(&self) @cname("RGFW_window_getWindow_OSX");
extern fn void* Window.get_HWND(&self) @cname("RGFW_window_getHWND");
extern fn void* Window.get_HDC(&self) @cname("RGFW_window_getHDC");
extern fn ulong Window.get_window_X11(&self) @cname("RGFW_window_getWindow_X11");
extern fn void* Window.get_window_wayland(&self) @cname("RGFW_window_getWindow_Wayland");
extern fn void Window.set_flags(&self, WindowFlags) @cname("RGFW_window_setFlags");
extern fn bool Window.check_event(&self, Event*) @cname("RGFW_window_checkEvent");
extern fn bool Window.check_queued_event(&self, Event*) @cname("RGFW_window_checkQueuedEvent");
extern fn bool Window.is_key_pressed(&self, Key) @cname("RGFW_window_isKeyPressed");
extern fn bool Window.is_key_down(&self, Key) @cname("RGFW_window_isKeyDown");
extern fn bool Window.is_key_released(&self, Key) @cname("RGFW_window_isKeyReleased");
extern fn bool Window.is_mouse_pressed(&self, MouseButton) @cname("RGFW_window_isMousePressed");
extern fn bool Window.is_mouse_down(&self, MouseButton) @cname("RGFW_window_isMouseDown");
extern fn bool Window.is_mouse_released(&self, MouseButton) @cname("RGFW_window_isMouseReleased");
extern fn bool Window.did_mouse_leave(&self) @cname("RGFW_window_didMouseLeave");
extern fn bool Window.did_mouse_enter(&self) @cname("RGFW_window_didMouseEnter");
extern fn bool Window.is_mouse_inside(&self) @cname("RGFW_window_isMouseInside");
extern fn bool Window.is_data_dragging(&self) @cname("RGFW_window_isDataDragging");
extern fn bool Window.get_data_drag(&self, int*, int*) @cname("RGFW_window_getDataDrag");
extern fn bool Window.did_data_drop(&self) @cname("RGFW_window_didDataDrop");
extern fn DataDropNode* Window.get_data_drop(&self) @cname("RGFW_window_getDataDrop");
extern fn void Window.close(&self) @cname("RGFW_window_close");
extern fn void Window.close_ptr(&self) @cname("RGFW_window_closePtr");
extern fn bool Window.fetch_size(&self, int*, int*) @cname("RGFW_window_fetchSize");
extern fn void Window.move(&self, int, int) @cname("RGFW_window_move");
extern fn void Window.move_to_monitor(&self, Monitor*) @cname("RGFW_window_moveToMonitor");
extern fn void Window.resize(&self, int, int) @cname("RGFW_window_resize");
extern fn void Window.set_aspect_ratio(&self, int, int) @cname("RGFW_window_setAspectRatio");
extern fn void Window.set_min_size(&self, int, int) @cname("RGFW_window_setMinSize");
extern fn void Window.set_max_size(&self, int, int) @cname("RGFW_window_setMaxSize");
extern fn void Window.focus(&self) @cname("RGFW_window_focus");
extern fn bool Window.is_in_focus(&self) @cname("RGFW_window_isInFocus");
extern fn void Window.raise(&self) @cname("RGFW_window_raise");
extern fn void Window.maximize(&self) @cname("RGFW_window_maximize");
extern fn void Window.set_fullscreen(&self, bool) @cname("RGFW_window_setFullscreen");
extern fn void Window.center(&self) @cname("RGFW_window_center");
extern fn void Window.minimize(&self) @cname("RGFW_window_minimize");
extern fn void Window.restore(&self) @cname("RGFW_window_restore");
extern fn void Window.set_floating(&self, bool) @cname("RGFW_window_setFloating");
extern fn void Window.set_opacity(&self, char) @cname("RGFW_window_setOpacity");
extern fn void Window.set_border(&self, bool) @cname("RGFW_window_setBorder");
extern fn bool Window.borderless(&self) @cname("RGFW_window_borderless");
extern fn void Window.set_DND(&self, bool) @cname("RGFW_window_setDND");
extern fn bool Window.allows_DND(&self) @cname("RGFW_window_allowsDND");
extern fn void Window.set_mouse_passthrough(&self, bool) @cname("RGFW_window_setMousePassthrough");
extern fn void Window.set_name(&self, ZString) @cname("RGFW_window_setName");
extern fn bool Window.set_icon(&self, char*, int, int, Format) @cname("RGFW_window_seticon");
extern fn bool Window.set_icon_ex(&self, char*, int, int, Format, Icon) @cname("RGFW_window_setIconEx");
extern fn bool Window.set_mouse(&self, Mouse*) @cname("RGFW_window_setMouse");
extern fn bool Window.set_mouse_standard(&self, MouseIcon) @cname("RGFW_window_setMouseStandard");
extern fn bool Window.set_mouse_default(&self) @cname("RGFW_window_setMouseDefault");
extern fn void Window.set_raw_mouse_mode(&self, bool) @cname("RGFW_window_setRawMouseMode");
extern fn void Window.capture_mouse(&self, bool) @cname("RGFW_window_captureMouse");
extern fn void Window.capture_raw_mouse_mode(&self, bool) @cname("RGFW_window_captureRawMouse");
extern fn bool Window.is_raw_mouse_mode(&self) @cname("RGFW_window_isRawMouseMode");
extern fn bool Window.is_captured(&self) @cname("RGFW_window_isCaptured");
extern fn void Window.hide(&self) @cname("RGFW_window_hide");
extern fn void Window.show(&self) @cname("RGFW_window_show");
extern fn void Window.flash(&self, FlashRequest) @cname("RGFW_window_flash");
extern fn void Window.set_should_close(&self, bool) @cname("RGFW_window_setShouldClose");
extern fn bool get_global_mouse(int*, int*) @cname("RGFW_getGlobalMouse");
extern fn bool Window.get_mouse(&self, int*, int*) @cname("RGFW_window_getMouse");
extern fn void Window.show_mouse(&self, bool) @cname("RGFW_window_showMouse");
extern fn bool Window.is_mouse_hidden(&self) @cname("RGFW_window_isMouseHidden");
extern fn void Window.move_mouse(&self, int, int) @cname("RGFW_window_moveMouse");
extern fn bool Window.should_close(&self) @cname("RGFW_window_shouldClose");
extern fn bool Window.is_fullscreen(&self) @cname("RGFW_window_isFullscreen");
extern fn bool Window.is_fullscreen_exclusive(&self) @cname("RGFW_window_isFullscreenExclusive");
extern fn bool Window.is_fullscreen_borderless(&self) @cname("RGFW_window_isFullscreenBorderless");
extern fn bool Window.is_hidden(&self) @cname("RGFW_window_isHidden");
extern fn bool Window.is_minimized(&self) @cname("RGFW_window_isMinimized");
extern fn bool Window.is_maximized(&self) @cname("RGFW_window_isMaximized");
extern fn bool Window.is_floating(&self) @cname("RGFW_window_isFloating");
extern fn void Window.scale_to_monitor(&self) @cname("RGFW_window_scaleToMonitor");
extern fn Monitor* Window.get_monitor(&self) @cname("RGFW_window_getMonitor");
extern fn DataTransfer* read_clipboard(DataTransferType) @cname("RGFW_readClipboard");
extern fn bool read_clipboard_ptr(DataTransferType, char*, usz, DataTransfer*) @cname("RGFW_readClipboardPtr");
// TODO tell upstream the following function's docs are wrong
extern fn DataTransfer* read_clipboard_string() @cname("RGFW_readClipboardString");
extern fn bool read_clipboard_string_ptr(char*, usz, DataTransfer*) @cname("RGFW_readClipboardStringPtr");
extern fn bool write_clipboard(DataTransfer*) @cname("RGFW_writeClipboard");
extern fn DebugFunc set_debug_callback(DebugFunc) @cname("RGFW_setDebugCallback");
extern fn void debug_callback(DebugType, ErrorCode, ZString) @cname("RGFW_debugCallback");
extern fn void Window.set_root(&self) @cname("RGFW_setRootWindow");
extern fn Window* get_root_window() @cname("RGFW_getRootWindow");
extern fn void event_queue_push(Event*) @cname("RGFW_eventQueuePush");
extern fn void event_queue_push_and_call(Event*) @cname("RGFW_eventQueuePushAndCall");
extern fn void event_queue_flush() @cname("RGFW_eventQueueFlush");
extern fn Event* event_queue_pop() @cname("RGFW_eventQueuePop");
extern fn Event* Window.event_queue_pop(&self) @cname("RGFW_window_eventQueuePop");
extern fn Key api_key_to_rgfw(uint) @cname("RGFW_apiKeyToRGFW");
extern fn uint rgfw_to_api_key(Key) @cname("RGFW_rgfwToApiKey");
extern fn Key physical_to_mapped_key(Key) @cname("RGFW_physicalToMappedKey");

module rgfw::opengl @feat(OPENGL | EGL);
extern fn void set_global_hints(GlHints*) @cname("RGFW_setGlobalHints_OpenGL");
extern fn void reset_global_hints() @cname("RGFW_resetGlobalHints_OpenGL");
extern fn GlHints* get_global_hints() @cname("RGFW_getGlobalHints_OpenGL");

module rgfw::opengl @feat(OPENGL);
extern fn GlContext* create_context(GlHints*) @cname("RGFW_createContext_OpenGL");
extern fn bool create_context_ptr(GlContext*, GlHints*) @cname("RGFW_createContextPtr_OpenGL");
extern fn void delete_context(GlContext*) @cname("RGFW_deleteContext_OpenGL");
extern fn void delete_context_ptr(GlContext*) @cname("RGFW_deleteContextPtr_OpenGL");
extern fn GlContext* copy_context(GlContext*) @cname("RGFW_copyContext_OpenGL");
extern fn bool copy_context_ptr(GlContext*, GlContext*) @cname("RGFW_copyContextPtr_OpenGL");
extern fn void* GlContext.get_source_context(&self) @cname("RGFW_glContext_getSourceContext");
extern fn void* get_current_context() @cname("RGFW_getCurrentContext_OpenGL");
extern fn void* get_current_surface() @cname("RGFW_getCurrentSurface_OpenGL");
extern fn Window* get_current_window() @cname("RGFW_getCurrentWindow_OpenGL");
extern fn Proc get_proc_address(ZString) @cname("RGFW_getProcAddress_OpenGL");
extern fn bool extension_supported(ZString, usz) @cname("RGFW_extensionSupported_OpenGL");
extern fn bool extension_supported_platform(ZString, usz) @cname("RGFW_extensionSupportedPlatform_OpenGL");

// if EGL is defined, prefer those methods as they (should) fall back
module rgfw::opengl @feat(OPENGL & !EGL);
extern fn bool Window.set_context(&self, GlContext*) @cname("RGFW_window_setContext_OpenGL");
extern fn GlContext* Window.get_context(&self) @cname("RGFW_window_getContext_OpenGL");
extern fn void Window.make_current_window(&self) @cname("RGFW_window_makeCurrentWindow_OpenGL");
extern fn void Window.make_current_context(&self) @cname("RGFW_window_makeCurrentContext_OpenGL");
extern fn void Window.swap_buffers(&self) @cname("RGFW_window_swapBuffers_OpenGL");
extern fn void Window.swap_interval(&self, int) @cname("RGFW_window_swapInterval_OpenGL");

module rgfw::egl @feat(EGL);
extern fn EglContext* create_context(GlHints*) @cname("RGFW_window_createContext_EGL");
extern fn bool create_context_ptr(EglContext*, GlHints*) @cname("RGFW_window_createContextPtr_EGL");
extern fn void delete_context(EglContext*) @cname("RGFW_window_deleteContext_EGL");
extern fn void delete_context_ptr(EglContext*) @cname("RGFW_window_deleteContextPtr_EGL");
extern fn EglContext* copy_context(EglContext*) @cname("RGFW_copyContext_EGL");
extern fn bool copy_context_ptr(EglContext*, EglContext*) @cname("RGFW_copyContextPtr_EGL");
extern fn bool Window.set_context(&self, EglContext*) @cname("RGFW_window_setContext_EGL");
extern fn EglContext* Window.get_context(&self) @cname("RGFW_window_getContext_EGL");
extern fn void* get_display() @cname("RGFW_getDisplay_EGL");
extern fn void* EglContext.get_source_context(&self) @cname("RGFW_eglContext_getSourceContext");
extern fn void* EglContext.get_surface(&self) @cname("RGFW_eglContext_getSurface");
extern fn void* EglContext.wl_egl_window(&self) @cname("RGFW_eglContext_wlEGLWindow");
extern fn void Window.swap_buffers(&self) @cname("RGFW_window_swapBuffers_EGL");
extern fn void Window.make_current_window(&self) @cname("RGFW_window_makeCurrentWindow_EGL");
extern fn void Window.make_current_context(&self) @cname("RGFW_window_makeCurrentContext_EGL");
extern fn void* get_current_context() @cname("RGFW_getCurrentContext_EGL");
extern fn void* get_current_surface() @cname("RGFW_getCurrentSurface_EGL");
extern fn Window* get_current_window() @cname("RGFW_getCurrentWindow_EGL");
extern fn void Window.swap_interval(&self, int) @cname("RGFW_window_swapInterval_EGL");
extern fn Proc get_proc_address(ZString) @cname("RGFW_getProcAddress_EGL");
extern fn bool extension_supported(ZString, usz) @cname("RGFW_extensionSupported_EGL");
extern fn bool extension_supported_platform(ZString, usz) @cname("RGFW_extensionSupportedPlatform_EGL");

module rgfw::vulkan @feat(VULKAN);
alias VkResult = int;
alias VkInstance = void*;
alias VkSurfaceKHR = ulong;
alias VkPhysicalDevice = void*;
extern fn Proc VkInstance.get_proc_address(self, ZString) @cname("RGFW_getInstanceProcAddress_Vulkan");
extern fn ZString[] get_required_instance_extensions(usz*) @cname("RGFW_getRequiredInstanceExtensions_Vulkan");
extern fn VkResult create_surface(Window*, VkInstance, VkSurfaceKHR*) @cname("RGFW_window_createSurface_Vulkan");
extern fn bool VkInstance.get_physical_device_presentation_support(
	self,
	VkPhysicalDevice,
	uint
) @cname("RGFW_getPhysicalDevicePresentationSupport_Vulkan");

module rgfw::directx @feat(DIRECTX);
alias IDXGIFactory = void;
alias IUnknown = void;
alias UDXGISwapChain = void;
extern fn int create_swap_chain(Window*, IDXGIFactory*, IUnknown*, UDXGISwapChain**) @cname("RGFW_window_createSwapChain_DirectX");

module rgfw::wgpu @feat(WGPU);
alias WGPUSurface = void*;
alias WGPUInstance = void*;
extern fn WGPUSurface create_surface(Window*, WGPUInstance) @cname("RGFW_window_createSurface_WebGPU");