function TypingTextManager() {
	this.init();
}

TypingTextManager.prototype.init = function() {
	this.contents = [];
}

TypingTextManager.prototype.getContents = function() {
	return this.contents;
}

TypingTextManager.prototype.add = function(arr) {
	this.contents = this.contents.concat(arr);
}

TypingTextManager.prototype.slice = function(start, end) {
	this.contents = this.contents.slice(start, end);
}

TypingTextManager.prototype.getShuffledArray = function(arr) {
	return Phaser.ArrayUtils.shuffle(arr);
}

TypingTextManager.prototype.fillLeftRightBasicKey = function() {
	var length = this.contents.length;
	// console.log(length);

	for(var i = length - 1; i > -1; i--) {
		var char = this.contents[i];
		// console.log(char);
		if(this.isKoreanConsonant(char)) {
			this.contents.splice(i + 1, 0, "ㅓ");
		} else if(this.isKoreanVowel(char)) {
			this.contents.splice(i, 0, "ㄹ");
		} else if(this.isEnglishLeftHand(char)) {
			this.contents.splice(i + 1, 0, "j");
		} else if(this.isEnglishRightHand(char)) {
			this.contents.splice(i, 0, "f");
		}
	}
}

TypingTextManager.prototype.isKoreanConsonant = function(char) {
	if(char.length != 1)
		return false;

	if(TypingTextManager.KOREAN_LETTER_CHO.indexOf(char) > -1)
		return true;
	else if(TypingTextManager.KOREAN_LETTER_JONG.indexOf(char) > -1)
		return;

	return false;
}

TypingTextManager.prototype.isKoreanVowel = function(char) {
	if(char.length != 1)
		return false;

	if(TypingTextManager.KOREAN_LETTER_JUNG.indexOf(char) > -1)
		return true;

	return false;
}

TypingTextManager.prototype.isEnglishLeftHand = function(char) {
	if(char.length != 1)
		return false;

	if(TypingTextManager.ENGLISH_LETTER_LEFT.indexOf(char) > -1)
		return true;

	return false;
}

TypingTextManager.prototype.isEnglishRightHand = function(char) {
	if(char.length != 1)
		return false;

	if(TypingTextManager.ENGLISH_LETTER_RIGHT.indexOf(char) > -1)
		return true;

	return false;
}


TypingTextManager.prototype.makePracticeContents = function(arr, repeatCount) {
	this.init();
	this.add(arr);
	for(var i = 0; i < repeatCount; i++) {
		this.add(this.getShuffledArray(arr));
	}
	this.fillLeftRightBasicKey();
}

TypingTextManager.prototype.makeTestContents = function(arr) {
	this.init();
	this.add(this.getShuffledArray(arr));
}

TypingTextManager.prototype.makeExaminationContents = function(arr) {
	this.init();

	// getExaminationArray : slice too long sentence by proper words and last space
	// this.add(arr);
	for(var i = 0; i < arr.length; i++) {
		var sentence = arr[i];
		if(sentence.length == 0)
			continue;
		if(sentence.length > TypingTextManager.SENTENCE_MAX_CHARACTER)
			this.add(this.makeShortSentences(sentence));
		else
			this.add(sentence);
	}
}

TypingTextManager.prototype.makeShortSentences = function(sentence) {
	var words = sentence.split(" ");
	var wordCount = words.length;

	var shortSentences = [];
	var sentenceIndex = 0;
	shortSentences[sentenceIndex] = "";

	// console.log(sentence);
	// console.log(words);

	for(var i = 0; i < wordCount; i++) {
		// console.log(words[i]);
		// console.log(shortSentences[sentenceIndex].length);
		// console.log(words[i]);
		if(shortSentences[sentenceIndex].length + words[i].length < TypingTextManager.SENTENCE_MAX_CHARACTER)
			if(i < wordCount - 1)
				shortSentences[sentenceIndex] = shortSentences[sentenceIndex].concat(words[i], " ");
			else	// last word
				shortSentences[sentenceIndex] = shortSentences[sentenceIndex].concat(words[i]);
		else {
			sentenceIndex++;
			if(i < wordCount - 1)
				shortSentences[sentenceIndex] = words[i] + " ";
			else	// last word
				shortSentences[sentenceIndex] = words[i];
		}
	}

	return shortSentences;
}


TypingTextManager.shuffledArray = function(arr) {
	return Phaser.ArrayUtils.shuffle(arr);
}


TypingTextManager.KOREAN_LETTER_CHO = [
	"ㄱ", "ㄲ", "ㄴ", "ㄷ", "ㄸ", "ㄹ", "ㅁ", "ㅂ", "ㅃ", "ㅅ",
	"ㅆ", "ㅇ", "ㅈ", "ㅉ", "ㅊ", "ㅋ", "ㅌ", "ㅍ", "ㅎ"
];

TypingTextManager.KOREAN_LETTER_JUNG = [
	"ㅏ", "ㅐ", "ㅑ", "ㅒ", "ㅓ", "ㅔ", "ㅕ", "ㅖ", "ㅗ", "ㅘ",
	"ㅙ", "ㅚ", "ㅛ", "ㅜ", "ㅝ", "ㅞ", "ㅟ", "ㅠ", "ㅡ", "ㅢ", "ㅣ"
];

TypingTextManager.KOREAN_LETTER_JONG = [
	"", "ㄱ", "ㄲ", "ㄳ", "ㄴ", "ㄵ", "ㄶ", "ㄷ", "ㄹ", "ㄺ",
	"ㄻ", "ㄼ", "ㄽ", "ㄾ", "ㄿ", "ㅀ", "ㅁ", "ㅂ", "ㅄ", "ㅅ",
	"ㅆ", "ㅇ", "ㅈ", "ㅊ", "ㅋ", "ㅌ", "ㅍ", "ㅎ"
];

TypingTextManager.ENGLISH_LETTER_LEFT = [
	"q", "w", "e", "r", "t",
	"a", "s", "d", "f", "g",
	"z", "x", "c", "v", "b"
];

TypingTextManager.ENGLISH_LETTER_RIGHT = [
	"y", "u", "i", "o", "p",
	"h", "j", "k", "l",
	"n", "m"
];


TypingTextManager.SENTENCE_MAX_CHARACTER	= 35;	// 27;