class KeyTextData {

	constructor(normalText, shiftText) {
		this.normalText = normalText;
		this.shiftText = shiftText;
	}

}

class KeyMapper {

	constructor() {
		this.keyboardKeyMap = {};
		this.inputKeyMap = {};

		this.registerFunctionKey();
		this.registerEnglishKey();
		this.registerKoreanKey();
	}


	registerFunctionKey() {
		this.registerKeyTextData("Backquote", "`", "~");
		this.registerKeyTextData("Digit1", "1", "!");
		this.registerKeyTextData("Digit2", "2", "@");
		this.registerKeyTextData("Digit3", "3", "#");
		this.registerKeyTextData("Digit4", "4", "$");
		this.registerKeyTextData("Digit5", "5", "%");
		this.registerKeyTextData("Digit6", "6", "^");
		this.registerKeyTextData("Digit7", "7", "&");
		this.registerKeyTextData("Digit8", "8", "*");
		this.registerKeyTextData("Digit9", "9", "(");
		this.registerKeyTextData("Digit0", "0", ")");
		this.registerKeyTextData("Minus", "-", "_");
		this.registerKeyTextData("Equal", "=", "+");
		this.registerKeyTextData("Backspace", "backspace", "backspace");

		this.registerKeyTextData("Tab", "tab", "tab");
		this.registerKeyTextData("BracketLeft", "[", "{");
		this.registerKeyTextData("BracketRight", "]", "}");
		this.registerKeyTextData("Backslash", "\\", "|");

		this.registerKeyTextData("CapsLock", "caps lock", "caps lock");
		this.registerKeyTextData("Semicolon", ";", ":");
		this.registerKeyTextData("Quote", "'", "\"");
		this.registerKeyTextData("Enter", "enter", "enter");

		this.registerKeyTextData("ShiftLeft", "left_shift", "left_shift");
		this.registerKeyTextData("ShiftRight", "right_shift", "right_shift");
		this.registerKeyTextData("Comma", ",", "<");
		this.registerKeyTextData("Period", ".", ">");
		this.registerKeyTextData("Slash", "/", "?");

		this.registerKeyTextData("ControlLeft", "ctrl", "ctrl");
		this.registerKeyTextData("window", "window", "window");
		this.registerKeyTextData("AltLeft", "alt", "alt");
		this.registerKeyTextData("chinese", "한자", "한자");
		this.registerKeyTextData("Space", "space", "space");
		this.registerKeyTextData("korean_english", "한/영", "한/영");
		this.registerKeyTextData("AltRight", "alt", "alt");
		this.registerKeyTextData("ControlRight", "ctrl", "ctrl");
	}

	registerEnglishKey() {
		this.registerKeyTextData("KeyQ", "q", "Q");
		this.registerKeyTextData("KeyW", "w", "W");
		this.registerKeyTextData("KeyE", "e", "E");
		this.registerKeyTextData("KeyR", "r", "R");
		this.registerKeyTextData("KeyT", "t", "T");
		this.registerKeyTextData("KeyY", "y", "Y");
		this.registerKeyTextData("KeyU", "u", "U");
		this.registerKeyTextData("KeyI", "i", "I");
		this.registerKeyTextData("KeyO", "o", "O");
		this.registerKeyTextData("KeyP", "p", "P");

		this.registerKeyTextData("KeyA", "a", "A");
		this.registerKeyTextData("KeyS", "s", "S");
		this.registerKeyTextData("KeyD", "d", "D");
		this.registerKeyTextData("KeyF", "f", "F");
		this.registerKeyTextData("KeyG", "g", "G");
		this.registerKeyTextData("KeyH", "h", "H");
		this.registerKeyTextData("KeyJ", "j", "J");
		this.registerKeyTextData("KeyK", "k", "K");
		this.registerKeyTextData("KeyL", "l", "L");

		this.registerKeyTextData("KeyZ", "z", "Z");
		this.registerKeyTextData("KeyX", "x", "X");
		this.registerKeyTextData("KeyC", "c", "C");
		this.registerKeyTextData("KeyV", "v", "V");
		this.registerKeyTextData("KeyB", "b", "B");
		this.registerKeyTextData("KeyN", "n", "N");
		this.registerKeyTextData("KeyM", "m", "M");
	}

	registerKoreanKey() {
		this.registerKeyTextData("KeyQ", "ㅂ", "ㅃ");
		this.registerKeyTextData("KeyW", "ㅈ", "ㅉ");
		this.registerKeyTextData("KeyE", "ㄷ", "ㄸ");
		this.registerKeyTextData("KeyR", "ㄱ", "ㄲ");
		this.registerKeyTextData("KeyT", "ㅅ", "ㅆ");
		this.registerKeyTextData("KeyY", "ㅛ", "ㅛ");
		this.registerKeyTextData("KeyU", "ㅕ", "ㅕ");
		this.registerKeyTextData("KeyI", "ㅑ", "ㅑ");
		this.registerKeyTextData("KeyO", "ㅐ", "ㅒ");
		this.registerKeyTextData("KeyP", "ㅔ", "ㅖ");

		this.registerKeyTextData("KeyA", "ㅁ", "ㅁ");
		this.registerKeyTextData("KeyS", "ㄴ", "ㄴ");
		this.registerKeyTextData("KeyD", "ㅇ", "ㅇ");
		this.registerKeyTextData("KeyF", "ㄹ", "ㄹ");
		this.registerKeyTextData("KeyG", "ㅎ", "ㅎ");
		this.registerKeyTextData("KeyH", "ㅗ", "ㅗ");
		this.registerKeyTextData("KeyJ", "ㅓ", "ㅓ");
		this.registerKeyTextData("KeyK", "ㅏ", "ㅏ");
		this.registerKeyTextData("KeyL", "ㅣ", "ㅣ");

		this.registerKeyTextData("KeyZ", "ㅋ", "ㅋ");
		this.registerKeyTextData("KeyX", "ㅌ", "ㅌ");
		this.registerKeyTextData("KeyC", "ㅊ", "ㅊ");
		this.registerKeyTextData("KeyV", "ㅍ", "ㅍ");
		this.registerKeyTextData("KeyB", "ㅠ", "ㅠ");
		this.registerKeyTextData("KeyN", "ㅜ", "ㅜ");
		this.registerKeyTextData("KeyM", "ㅡ", "ㅡ");
	}


	registerKeyTextData(keyID, normalText, shiftText) {
		this.keyboardKeyMap[keyID] = new KeyTextData(normalText, shiftText);

		if(this.inputKeyMap[keyID] === undefined)
			this.inputKeyMap[keyID] = keyID;
		if(this.inputKeyMap[normalText] === undefined)
			this.inputKeyMap[normalText] = keyID;
		if(this.inputKeyMap[shiftText] === undefined)
			this.inputKeyMap[shiftText] = keyID;
	}


	getNormalText(keyID) {
		if(this.keyboardKeyMap[keyID] === undefined) {
			console.log(keyID);
			return "?";
		}
		return this.keyboardKeyMap[keyID].normalText;
	}

	getShiftText(keyID) {
		if(this.keyboardKeyMap[keyID] === undefined) {
			console.log(keyID);
			return "?";
		}
		return this.keyboardKeyMap[keyID].shiftText;
	}



	getKeyIDOfText(text) {
		return this.inputKeyMap[text];
	}

	isShiftText(text) {
		let keyID = this.getKeyIDOfText(text);
		let keyTextData = this.keyboardKeyMap[keyID];

		if(keyTextData.normalText === text)
			return false;

		return true;
	}

}