/*************************************************************************/
/*  os_windows.h                                                         */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#ifndef OS_WINDOWS_H
#define OS_WINDOWS_H

#define WINVER 0x0600

#include "os/input.h"
#include "os/os.h"
#include "context_gl_win.h"
#include "servers/visual_server.h"
#include "servers/visual/rasterizer.h"
#include "servers/physics/physics_server_sw.h"

#include "servers/audio/audio_server_sw.h"
#include "servers/audio/sample_manager_sw.h"
#include "drivers/rtaudio/audio_driver_rtaudio.h"
#ifdef XAUDIO2_ENABLED
#include "drivers/xaudio2/audio_driver_xaudio2.h"
#endif
#include "servers/spatial_sound/spatial_sound_server_sw.h"
#include "servers/spatial_sound_2d/spatial_sound_2d_server_sw.h"
#include "drivers/unix/ip_unix.h"
#include "servers/physics_2d/physics_2d_server_sw.h"
#include "servers/physics_2d/physics_2d_server_wrap_mt.h"

#include "main/input_default.h"

#include <windows.h>

#include "key_mapping_win.h"
#include <windowsx.h>
#include <io.h>

#include <fcntl.h>
#include <stdio.h>
/**
	@author Juan Linietsky <reduzio@gmail.com>
*/
class joystick_windows;
class OS_Windows : public OS {

        enum {
            KEY_EVENT_BUFFER_SIZE=512
	};

	FILE *stdo;


	struct KeyEvent {

		InputModifierState mod_state;
		UINT uMsg;
		WPARAM	wParam;
		LPARAM	lParam;

	};

	KeyEvent key_event_buffer[KEY_EVENT_BUFFER_SIZE];
	int key_event_pos;


	uint64_t ticks_start;
	uint64_t ticks_per_second;


        bool old_invalid;
        bool outside;
	int old_x,old_y;
	Point2i center;
	unsigned int last_id;
#if defined(OPENGL_ENABLED) || defined(LEGACYGL_ENABLED) || defined(GLES2_ENABLED)
	ContextGL_Win *gl_context;
#endif
	VisualServer *visual_server;
	Rasterizer *rasterizer;
	PhysicsServer *physics_server;
	Physics2DServer *physics_2d_server;
	int pressrc;
	HDC		hDC;	// Private GDI Device Context
	HINSTANCE	hInstance;		// Holds The Instance Of The Application
	HWND hWnd;

	uint32_t move_timer_id;

	HCURSOR hCursor;

	Size2 window_rect;
	VideoMode video_mode;

	MainLoop *main_loop;

	WNDPROC user_proc;

	AudioServerSW *audio_server;
	SampleManagerMallocSW *sample_manager;
	SpatialSoundServerSW *spatial_sound_server;
	SpatialSound2DServerSW *spatial_sound_2d_server;

	MouseMode mouse_mode;
	bool alt_mem;
	bool gr_mem;
	bool shift_mem;
	bool control_mem;
	bool meta_mem;
	bool force_quit;
	uint32_t last_button_state;

	CursorShape cursor_shape;

	InputDefault *input;
	joystick_windows *joystick;

#ifdef RTAUDIO_ENABLED
	AudioDriverRtAudio driver_rtaudio;
#endif
#ifdef XAUDIO2_ENABLED
	AudioDriverXAudio2 driver_xaudio2;
#endif

	void _drag_event(int p_x, int p_y, int idx);
	void _touch_event(bool p_pressed, int p_x, int p_y, int idx);

	// functions used by main to initialize/deintialize the OS
protected:
	virtual int get_video_driver_count() const;
	virtual const char * get_video_driver_name(int p_driver) const;

	virtual VideoMode get_default_video_mode() const;

	virtual int get_audio_driver_count() const;
	virtual const char * get_audio_driver_name(int p_driver) const;

	virtual void initialize_core();
	virtual void initialize(const VideoMode& p_desired,int p_video_driver,int p_audio_driver);

	virtual void set_main_loop( MainLoop * p_main_loop );
	virtual void delete_main_loop();

	virtual void finalize();
	virtual void finalize_core();

	void process_events();
	void process_key_events();

	struct ProcessInfo {

		STARTUPINFO si;
		PROCESS_INFORMATION pi;
	};
	Map<ProcessID, ProcessInfo>* process_map;

	struct MonitorInfo {
		HMONITOR hMonitor;
		HDC hdcMonitor;
		Rect2 rect;
		int dpi;


	};

	bool pre_fs_valid;
	RECT pre_fs_rect;
	Vector<MonitorInfo> monitor_info;
	bool maximized;
	bool minimized;
	bool borderless;

	static BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor,  LPARAM dwData);


public:
	LRESULT WndProc(HWND	hWnd,UINT uMsg,	WPARAM	wParam,	LPARAM	lParam);


	void print_error(const char* p_function,const char* p_file,int p_line,const char *p_code,const char*p_rationale,ErrorType p_type);

	virtual void vprint(const char *p_format, va_list p_list, bool p_stderr=false);
	virtual void alert(const String& p_alert,const String& p_title="ALERT!");
	String get_stdin_string(bool p_block);

	void set_mouse_mode(MouseMode p_mode);
	MouseMode get_mouse_mode() const;

	virtual void warp_mouse_pos(const Point2& p_to);
	virtual Point2 get_mouse_pos() const;
	virtual int get_mouse_button_state() const;
	virtual void set_window_title(const String& p_title);

	virtual void set_video_mode(const VideoMode& p_video_mode,int p_screen=0);
	virtual VideoMode get_video_mode(int p_screen=0) const;
	virtual void get_fullscreen_mode_list(List<VideoMode> *p_list,int p_screen=0) const;

	virtual int get_screen_count() const;
	virtual int get_current_screen() const;
	virtual void set_current_screen(int p_screen);
	virtual Point2 get_screen_position(int p_screen=0) const;
	virtual Size2 get_screen_size(int p_screen=0) const;
	virtual int get_screen_dpi(int p_screen=0) const;

	virtual Point2 get_window_position() const;
	virtual void set_window_position(const Point2& p_position);
	virtual Size2 get_window_size() const;
	virtual void set_window_size(const Size2 p_size);
	virtual void set_window_fullscreen(bool p_enabled);
	virtual bool is_window_fullscreen() const;
	virtual void set_window_resizable(bool p_enabled);
	virtual bool is_window_resizable() const;
	virtual void set_window_minimized(bool p_enabled);
	virtual bool is_window_minimized() const;
	virtual void set_window_maximized(bool p_enabled);
	virtual bool is_window_maximized() const;
	virtual void request_attention();

	virtual void set_borderless_window(int p_borderless);
	virtual bool get_borderless_window();

	virtual MainLoop *get_main_loop() const;

	virtual String get_name();

	virtual Date get_date(bool utc) const;
	virtual Time get_time(bool utc) const;
	virtual TimeZoneInfo get_time_zone_info() const;
	virtual uint64_t get_unix_time() const;
	virtual uint64_t get_system_time_secs() const;

	virtual bool can_draw() const;
	virtual Error set_cwd(const String& p_cwd);

	virtual void delay_usec(uint32_t p_usec) const;
	virtual uint64_t get_ticks_usec() const;

	virtual Error execute(const String& p_path, const List<String>& p_arguments,bool p_blocking,ProcessID *r_child_id=NULL,String* r_pipe=NULL,int *r_exitcode=NULL);
	virtual Error kill(const ProcessID& p_pid);
	virtual int get_process_ID() const;

	virtual bool has_environment(const String& p_var) const;
	virtual String get_environment(const String& p_var) const;

	virtual void set_clipboard(const String& p_text);
	virtual String get_clipboard() const;

	void set_cursor_shape(CursorShape p_shape);
	void set_icon(const Image& p_icon);

	virtual String get_executable_path() const;

	virtual String get_locale() const;
	virtual LatinKeyboardVariant get_latin_keyboard_variant() const; 

	virtual void enable_for_stealing_focus(ProcessID pid);
	virtual void move_window_to_foreground();
	virtual String get_data_dir() const;
	virtual String get_system_dir(SystemDir p_dir) const;


	virtual void release_rendering_thread();
	virtual void make_rendering_thread();
	virtual void swap_buffers();

	virtual Error shell_open(String p_uri);

	void run();

	virtual bool get_swap_ok_cancel() { return true; }

	virtual bool is_joy_known(int p_device);
	virtual String get_joy_guid(int p_device) const;

	virtual void set_use_vsync(bool p_enable);
	virtual bool is_vsync_enabled() const;

	OS_Windows(HINSTANCE _hInstance);
	~OS_Windows();

};

#endif