#pragma once
#include "graphicsruntime.hpp"
#include <string>
#include <vector>

#include <Windows.h>

class gxAudio;
class gxInput;
class gxGraphics;
class gxFileSystem;
class gxTimer;

class gxRuntime {
	/***** INTERNAL INTERFACE *****/
	public:
	HWND      hwnd;
	HINSTANCE hinst;

	gxAudio*      audio;
	gxInput*      input;
	gxGraphics*   graphics;
	gxFileSystem* fileSystem;

	void flip(bool vwait);
	void moveMouse(int x, int y);

	LRESULT windowProc(HWND hwnd, UINT msg, WPARAM w, LPARAM l);

	struct GfxMode;
	struct GfxDriver;

	private:
	gxRuntime(HINSTANCE hinst, const std::string& cmd_line, HWND hwnd);
	~gxRuntime();

	void paint();
	void suspend();
	void forceSuspend();
	void resume();
	void forceResume();
	void backupWindowState();
	void restoreWindowState();

	RECT        t_rect;
	int         t_style;
	std::string cmd_line;
	bool        pointer_visible;
	std::string app_title;
	std::string app_close;

	bool        setDisplayMode(int w, int h, int d, bool d3d, IDirectDraw7* dd);
	gxGraphics* openWindowedGraphics(int w, int h, int d, bool d3d);
	gxGraphics* openExclusiveGraphics(int w, int h, int d, bool d3d);

	bool                    enum_all;
	std::vector<GfxDriver*> drivers;
	GfxDriver*              curr_driver;
	int                     use_di;

	void enumGfx();
	void denumGfx();

	void resetInput();
	void pauseAudio();
	void resumeAudio();
	void backupGraphics();
	void restoreGraphics();
	void acquireInput();
	void unacquireInput();

	/***** APP INTERFACE *****/
	public:
	static gxRuntime* openRuntime(HINSTANCE hinst, const std::string& cmd_line, void* d);
	static void       closeRuntime(gxRuntime* runtime);

	void asyncStop();
	void asyncRun();
	void asyncEnd();

	/***** GX INTERFACE *****/
	public:
	enum { GFXMODECAPS_3D = 1 };

	//return true if program should continue, or false for quit.
	bool idle();
	bool delay(int ms);

	bool execute(const std::string& cmd);
	void setTitle(const std::string& title, const std::string& close);
	int  getMilliSecs();
	void setPointerVisible(bool vis);

	std::string commandLine();

	std::string systemProperty(const std::string& t);

	void debugStop();
	void debugProfile(int per);
	void debugStmt(int pos, const char* file);
	void debugEnter(void* frame, void* env, const char* func);
	void debugLeave();
	void debugInfo(const char* t);
	void debugError(const char* t);
	void debugLog(const char* t);

	int  enumerateGraphicsDrivers();
	void graphicsDriverInfo(int driver, std::string* name, int* caps);

	int  countGraphicsModes(int driver);
	void graphicsModeInfo(int driver, int mode, int* w, int* h, int* d, int* caps);

	void windowedModeInfo(int* caps);

	gxAudio* openAudio(int flags);
	void     closeAudio(gxAudio* audio);

	gxInput* openInput(int flags);
	void     closeInput(gxInput* input);

	gxGraphics* openGraphics(int w, int h, int d, int driver, int flags);
	void        closeGraphics(gxGraphics* graphics);
	bool        graphicsLost();

	gxFileSystem* openFileSystem(int flags);
	void          closeFileSystem(gxFileSystem* filesys);

	gxTimer* createTimer(int hertz);
	void     freeTimer(gxTimer* timer);

	void enableDirectInput(bool use);
	int  directInputEnabled()
	{
		return use_di;
	}

	int callDll(const std::string& dll, const std::string& func, const void* in, int in_sz, void* out, int out_sz);

	OSVERSIONINFO osinfo;
};