/////////////////////////////////////////////////////////////////////
// Created by [Dennis Andersen] [2013]
/////////////////////////////////////////////////////////////////////
#ifndef INPUT_KEBOARD_H
#define INPUT_KEBOARD_H

#include "InputObject.h"
#include <vector>

namespace Input
{
	//-----------------------------------------------------------------------------------------------------------------------------
	namespace Enum
	{
		//! Contains keycodes (Enum::SAKI -> Super Awsome Key Input)
		enum SAKI
		{
			SAKI_Backspace			,
			SAKI_Tab				,
			SAKI_Enter				,
			SAKI_LeftShift			,
			SAKI_RightShift			,
			SAKI_LeftAlt			,
			SAKI_RightAlt			,
			SAKI_LeftCtrl			,
			SAKI_RightCtrl			,
			SAKI_Pause				,
			SAKI_CapsLock			,
			SAKI_Escape				,
			SAKI_Space				,
			SAKI_PgUp				,
			SAKI_PgDown				,
			SAKI_End				,
			SAKI_Home				,
			SAKI_Left				,
			SAKI_Up					,
			SAKI_Right				,
			SAKI_Down				,
			SAKI_PrintScreen		,
			SAKI_Insert				,
			SAKI_Delete				,
			SAKI_0					,
			SAKI_1					,
			SAKI_2					,
			SAKI_3					,
			SAKI_4					,
			SAKI_5					,
			SAKI_6					,
			SAKI_7					,
			SAKI_8					,
			SAKI_9					,
			SAKI_A					,
			SAKI_B					,
			SAKI_C					,
			SAKI_D					,
			SAKI_E					,
			SAKI_F					,
			SAKI_G					,
			SAKI_H					,
			SAKI_I					,
			SAKI_J					,
			SAKI_K					,
			SAKI_L					,
			SAKI_M					,
			SAKI_N					,
			SAKI_O					,
			SAKI_P					,
			SAKI_Q					,
			SAKI_R					,
			SAKI_S					,
			SAKI_T					,
			SAKI_U					,
			SAKI_V					,
			SAKI_W					,
			SAKI_X					,
			SAKI_Y					,
			SAKI_Z					,
			SAKI_LeftWindows		,
			SAKI_RightWindows		,
			SAKI_Numpad0			,
			SAKI_Numpad1			,
			SAKI_Numpad2			,
			SAKI_Numpad3			,
			SAKI_Numpad4			,
			SAKI_Numpad5			,
			SAKI_Numpad6			,
			SAKI_Numpad7			,
			SAKI_Numpad8			,
			SAKI_Numpad9			,
			SAKI_NumpadEnter		,
			SAKI_NumpadMultiply		,
			SAKI_NumpadPlus			,
			SAKI_NumpadSubtract		,
			SAKI_NumpadDecimal		,
			SAKI_NumpadDivide		,
			SAKI_F1					,
			SAKI_F2					,
			SAKI_F3					,
			SAKI_F4					,
			SAKI_F5					,
			SAKI_F6					,
			SAKI_F7					,
			SAKI_F8					,
			SAKI_F9					,
			SAKI_F10				,
			SAKI_F11				,
			SAKI_F12				,
			SAKI_F13				,
			SAKI_F14				,
			SAKI_F15				,
			SAKI_F16				,
			SAKI_F17				,
			SAKI_F18				,
			SAKI_F19				,
			SAKI_F20				,
			SAKI_F21				,
			SAKI_F22				,
			SAKI_F23				,
			SAKI_F24				,
			SAKI_Numlock			,
			SAKI_ScrlLock			,
			SAKI_VolumeMute,
			SAKI_VolumeDown,
			SAKI_VolumeUp,
			SAKI_MediaNext,
			SAKI_MediaPrev,
			SAKI_MediaStop,
			SAKI_MediaPlayPause,

			SAKI_Unknown
		};
	}
	//-----------------------------------------------------------------------------------------------------------------------------
	namespace Typedefs
	{
		typedef void(*OnKeyPressCallback)(Enum::SAKI key, const wchar_t[40], Keyboard* sender);
		typedef void(*OnKeyDownCallback)(Enum::SAKI key, const wchar_t[40], Keyboard* sender);
		typedef void(*OnKeyReleaseCallback)(Enum::SAKI key, const wchar_t[40], Keyboard* sender);
	}
	//-----------------------------------------------------------------------------------------------------------------------------

	class Keyboard	:public InputObject
	{
	public:
		class KeyboardEvent
		{
		public:
			virtual void OnKeyPress(Enum::SAKI key, const wchar_t[40], Keyboard* sender) { }
			virtual void OnKeyDown(Enum::SAKI key, const wchar_t[40], Keyboard* sender) { }
			virtual void OnKeyRelease(Enum::SAKI key, const wchar_t[40], Keyboard* sender) { }
		};

	public: /* Manual check functions */
		virtual bool IsKeyUp (Enum::SAKI key) = 0;
		virtual bool IsKeyDown (Enum::SAKI key) = 0;
		virtual const wchar_t* GetAsText(Enum::SAKI key) = 0;

	public: /* global subscribe callback functions */
		void AddOnKeyPressCallback (Typedefs::OnKeyPressCallback func);
		void AddOnKeyDownCallback (Typedefs::OnKeyDownCallback func);
		void AddOnKeyReleaseCallback (Typedefs::OnKeyReleaseCallback func);

		void RemoveOnKeyPressCallback (Typedefs::OnKeyPressCallback func);
		void RemoveOnKeyDownCallback (Typedefs::OnKeyDownCallback func);
		void RemoveOnKeyReleaseCallback (Typedefs::OnKeyReleaseCallback func);

	public:
		void operator+= (KeyboardEvent* object);
		void operator-= (KeyboardEvent* object);

	protected:
		Keyboard();
		~Keyboard();

	protected:
		struct KeyboardCallbackList
		{
			enum CallbackDataType
			{
				CallbackDataType_OnPress,
				CallbackDataType_OnDown,
				CallbackDataType_OnRelease
			} type;
			union CallbackData
			{
				Typedefs::OnKeyPressCallback		keyPressCallback;
				Typedefs::OnKeyDownCallback		keyDownCallback;
				Typedefs::OnKeyReleaseCallback	keyReleaseCallback;

				CallbackData (){ memset(this, 0, sizeof(CallbackData)); }
				CallbackData (Typedefs::OnKeyPressCallback o){ keyPressCallback = o; }
				bool operator ==(CallbackData o){ return o.keyDownCallback == keyDownCallback; }
				bool operator ==(Typedefs::OnKeyPressCallback o ){ return o == keyPressCallback; }
				operator bool(){ return this->keyDownCallback != 0; }
			} function;
			KeyboardCallbackList *next;
			KeyboardCallbackList(CallbackData func, CallbackDataType t) :function(func), next(0), type(t) { }
		};

	protected:
		void ClearList(KeyboardCallbackList* first);
		void AddToList(Keyboard::KeyboardCallbackList* first, KeyboardCallbackList::CallbackData data, KeyboardCallbackList::CallbackDataType type);
		void RemoveFromList(KeyboardCallbackList* first, KeyboardCallbackList::CallbackData data);
		bool ExistsInList(KeyboardCallbackList* first, KeyboardCallbackList::CallbackData data);
		bool ExistsInList(std::vector<KeyboardEvent*>& list, KeyboardEvent* data);

	protected:
		std::vector<KeyboardEvent*>		keyEventSubscrivers;
		KeyboardCallbackList*			callbackList;
	};
}

#endif // !INPUT_KEBOARD_H