#include <glfw3.h>

#include "util.h"
#include "mapping.h"
#include "stateManager.h"
#include "abstractAppState.h"

using namespace std;
using namespace chrono;

namespace gameBase{
	std::string keyStrings[]{
		"Escape",
		"Enter",
		"Tab",
		"Backspace",
		"Insert",
		"Delete",
		"Right",
		"Left",
		"Up",
		"Down",
		"PageUp",
		"PageDown",
		"Home",
		"End",
		"CapsLock",
		"ScrollLock",
		"NumLock",
		"PrintScreen",
		"Space",
		"Pause",
		"Numpad .",
		"Numpad /",
		"Numpad *",
		"Numpad -",
		"Numpad +",
		"Numpad enter",
		"=",
		"Left shift",
		"Left control",
		"Left alt",
		"Left super",
		"Right shift",
		"Right control",
		"Right alt",
		"Right super",
		"Left click",
		"Right click",
		"Middle click"
	};

	int triggers[]{
		GLFW_KEY_ESCAPE,
		GLFW_KEY_ENTER,
		GLFW_KEY_TAB,
		GLFW_KEY_BACKSPACE,
		GLFW_KEY_INSERT,
		GLFW_KEY_DELETE,
		GLFW_KEY_RIGHT,
		GLFW_KEY_LEFT,
		GLFW_KEY_UP,
		GLFW_KEY_DOWN,
		GLFW_KEY_PAGE_UP,
		GLFW_KEY_PAGE_DOWN,
		GLFW_KEY_HOME,
		GLFW_KEY_END,
		GLFW_KEY_CAPS_LOCK,
		GLFW_KEY_SCROLL_LOCK,
		GLFW_KEY_NUM_LOCK,
		GLFW_KEY_PRINT_SCREEN,
		GLFW_KEY_SPACE,
		GLFW_KEY_PAUSE,
		GLFW_KEY_KP_DECIMAL,
		GLFW_KEY_KP_DIVIDE,
		GLFW_KEY_KP_MULTIPLY,
		GLFW_KEY_KP_SUBTRACT,
		GLFW_KEY_KP_ADD,
		GLFW_KEY_KP_ENTER,
		GLFW_KEY_EQUAL,
		GLFW_KEY_LEFT_SHIFT,
		GLFW_KEY_LEFT_CONTROL,
		GLFW_KEY_LEFT_ALT,
		GLFW_KEY_LEFT_SUPER,
		GLFW_KEY_RIGHT_SHIFT,
		GLFW_KEY_RIGHT_CONTROL,
		GLFW_KEY_RIGHT_ALT,
		GLFW_KEY_RIGHT_SUPER,
		GLFW_MOUSE_BUTTON_LEFT,
		GLFW_MOUSE_BUTTON_RIGHT,
		GLFW_MOUSE_BUTTON_MIDDLE
	};

	string fromIntToString(int data[3]){
		string output;

		switch((Mapping::BindType)data[0]){
			case Mapping::KEYBOARD:
			case Mapping::MOUSE_KEY:
				{
					bool specialKey = false;
					int numSpecialKeys = sizeof(triggers) / sizeof(int);

					for(int i = 0; i < numSpecialKeys; i++){
						if(data[2] == triggers[i]){
							specialKey = true;
							output = keyStrings[i];
						}

						if(!specialKey){
							char c[]{data[2]};
							output = string(c);
						}
					}

					break;
				}
			case Mapping::MOUSE_AXIS:
				output = "MOUSE_AXIS_" + to_string(data[2]) + (data[1] ? "+" : "-");
				break;
			case Mapping::JOYSTICK_KEY:
				output = "JOYSTICK_BUTTON_" + to_string(data[2]);
				break;
			case Mapping::JOYSTICK_AXIS:
				output = "JOYSTICK_AXIS_" + to_string(data[2]) + (data[1] ? "+" : "-");
				break;
		}
		return output;
	}

	int* fromStringToInt(string data){
		int *output = new int[3], length = data.length();

		if(data.substr(0, 11) == "MOUSE_AXIS_"){
			output[0] = Mapping::MOUSE_AXIS;
			output[1] = 0;
			output[2] = atoi(data.substr(11, string::npos - 1).c_str()) + (int)data.c_str()[12] == '+';
		}
		else if(data.substr(0, 16) == "JOYSTICK_BUTTON_"){
			output[0] = Mapping::JOYSTICK_KEY;
			output[1] = 1;
			output[2] = atoi(data.substr(16, string::npos - 1).c_str());
		}
		else if(data.substr(0, 14) == "JOYSTICK_AXIS_"){
			output[0] = Mapping::JOYSTICK_AXIS;
			output[1] = 0;
			output[2] = 2*atoi(data.substr(14, 1).c_str()) + (data.c_str()[15] == '+' ? 1 : 0);
		}
		else{
			bool specialKey = false;
			int numSpecialKeys = sizeof(triggers) / sizeof(int);

			for(int i = 0; i < numSpecialKeys; i++)
				if(data == keyStrings[i]){
					specialKey = true;
					output[0] = numSpecialKeys - i <= 3 ? Mapping::MOUSE_KEY:Mapping::KEYBOARD;
					output[2] = triggers[i];
				}

			if(!specialKey){
				output[0] = Mapping::KEYBOARD;
				output[2] = data.c_str()[0];
			}

			output[1] = 1;
		}

		return output;
	}

	wstring stringToWstring(string str){
		wstring wstr = L"";

		for(char ch : str)
			wstr += ch;

		return wstr;
	}

	string wstringToString(wstring wstr){
		string str = "";

		for(wchar_t ch : wstr)
			if(ch < 256)
				str += ch;

		return str;
	}
}