function Chart() {
	this.dbConnectManager = new DBConnectManager();

	this.chartGraphics = game.add.graphics(0, 0);
	this.printChartTitle();
	this.printChartBaseLine();

	this.records = [];
	for(var i = 0; i < 7; i++)
		this.records.push(new ChartRecord(i));
}

Chart.prototype.printChartTitle = function() {
	var offsetY = -25;
	var fontStyle = { font: "30px Arial", fill: "#fff", align: "center" };

	Chart.drawText(Chart.DATE_POS_X, Chart.CHART_LINE_Y + offsetY, "날짜", fontStyle);
	Chart.drawText(Chart.SCORE_POS_X, Chart.CHART_LINE_Y + offsetY, "점수", fontStyle);
	Chart.drawText(Chart.GRADE_POS_X, Chart.CHART_LINE_Y + offsetY, "등급", fontStyle);
	Chart.drawText(Chart.SUBJECT_POS_X, Chart.CHART_LINE_Y + offsetY, "과목", fontStyle);
}

Chart.prototype.printChartBaseLine = function() {
	this.chartGraphics.lineStyle(3, 0xffd900, 1);
	this.chartGraphics.moveTo(Chart.CHART_LINE_START_X, Chart.CHART_LINE_Y);
	this.chartGraphics.lineTo(game.world.width - Chart.CHART_LINE_START_X, Chart.CHART_LINE_Y);

	/*
	for(var i = 0; i < 6; i++) {
		this.chartGraphics.lineStyle(1, 0x888888, 1);
		this.chartGraphics.moveTo(
			Chart.CHART_LINE_START_X,
			ChartRecord.getPosY(i) + ChartRecord.RECORD_HEIGHT
		);
		this.chartGraphics.lineTo(
			game.world.width - Chart.CHART_LINE_START_X,
			ChartRecord.getPosY(i) + ChartRecord.RECORD_HEIGHT
		);
	}
	*/
}

/*
Chart.prototype.drawRecordGraph = function(index, date, bestRecord, min, max) {
	var reverseIndex = (Chart.CHART_COUNT - 1) - index;
	var posX = Chart.CHART_LINE_START_X + Chart.CHART_GRAPH_OFFSET_X + reverseIndex * Chart.CHART_GAP_PX;
	var posY = Chart.CHART_LINE_Y;

	this.drawText(
		posX, posY + Chart.CHART_DATE_OFFSET_Y,
		date === "-" ? "-" : StringUtil.printMonthDay(date)
	);

	if(bestRecord === "")
		return;

	this.drawText(
		posX, posY - Chart.CHART_HEIGHT - Chart.CHART_RECORD_OFFSET_Y,
		// StringUtil.getRecordTextWithoutUnit(bestRecord) + StringUtil.getScoreUnit(sessionStorageManager.playingAppID)
		RecordUtil.getRecordValueWithUnit(bestRecord, sessionStorageManager.getPlayingAppID())
	);

	// chart
	this.chartGraphics.lineStyle(50, 0xdddddd, 1);
	this.chartGraphics.moveTo(posX, posY);
	this.chartGraphics.lineTo(posX, posY - Chart.CHART_HEIGHT * ( (bestRecord - min) / (max - min) ));
}
*/

Chart.drawText = function(posX, posY, text, fontStyle) {
	var textObject = game.add.text(
		posX, posY,
		text, fontStyle
	);
	textObject.anchor.set(0.5);
	textObject.stroke = "#333";
	textObject.strokeThickness = 3;

	return textObject;
}

Chart.prototype.printContents = function() {
	if(isDebugMode()) {
		for(var i = 0; i < this.records.length; i++) {
			this.records[i].printDate("12월 10일");
			this.records[i].printScore(360);
			this.records[i].printGrade("B");
			this.records[i].printSubject("ITQ 파워포인트");
		}
	}
}

Chart.CHART_COUNT			= 7;

Chart.CHART_LINE_START_X	= 230;
Chart.CHART_LINE_Y			= 370;

Chart.CHART_GAP_PX			= 120;
Chart.CHART_HEIGHT			= 120;

Chart.CHART_GRAPH_OFFSET_X	= 50;
Chart.CHART_DATE_OFFSET_Y	= 20;
Chart.CHART_SCORE_OFFSET_Y	= 30;

Chart.DATE_POS_X			= Chart.CHART_LINE_START_X + 70;
Chart.SCORE_POS_X			= Chart.DATE_POS_X + 120;
Chart.GRADE_POS_X			= Chart.DATE_POS_X + 200;
Chart.SUBJECT_POS_X			= Chart.DATE_POS_X + 360;


function ChartRecord(indexRow) {
	this.date = new DateData(indexRow);
	this.score = new ScoreData(indexRow);
	this.grade = new GradeData(indexRow);
	this.subject = new SubjectData(indexRow);

	return this;
}


ChartRecord.prototype.printDate = function(date) {
	this.date.text = date;
}

ChartRecord.prototype.printScore = function(score) {
	this.score.text = RecordUtil.getRecordValueWithUnit(score, 101); //sessionStorageManager.getPlayingAppID());
}

ChartRecord.prototype.printGrade = function(grade) {
	this.grade.text = grade;
}

ChartRecord.prototype.printSubject = function(subject) {
	this.subject.text = subject;
}

ChartRecord.getPosX = function(columnName) {
	var posX = Chart.CHART_LINE_START_X;
	switch(columnName) {
		case "date":
		posX = Chart.DATE_POS_X;
		break;

		case "score":
		posX = Chart.SCORE_POS_X;
		break;

		case "grade":
		posX = Chart.GRADE_POS_X;
		break;

		case "subject":
		posX = Chart.SUBJECT_POS_X;
		break;
	}

	return posX;
}

ChartRecord.getPosY = function(rowIndex) {
	var offsetY = 30;
	return Chart.CHART_LINE_Y + offsetY + ChartRecord.GAP_RECORD_Y * rowIndex;
}

ChartRecord.getDefaultFontStyle = function() {
	return { font: "26px Arial", fill: "#ffc", align: "center" };
}

ChartRecord.GAP_RECORD_Y	= 40;
ChartRecord.RECORD_HEIGHT	= 16;


function DateData(index) {
	this.dateText = Chart.drawText(
		ChartRecord.getPosX("date"), ChartRecord.getPosY(index),
		"-", ChartRecord.getDefaultFontStyle()
	);

	return this.dateText;
}

function ScoreData(index) {
	this.scoreText = Chart.drawText(
		ChartRecord.getPosX("score"), ChartRecord.getPosY(index),
		"-", ChartRecord.getDefaultFontStyle()
	);

	return this.scoreText;
}

function GradeData(index) {
	this.gradeText = Chart.drawText(
		ChartRecord.getPosX("grade"), ChartRecord.getPosY(index),
		"-", ChartRecord.getDefaultFontStyle()
	);

	return this.gradeText;
}

function SubjectData(index) {
	this.subjectText = Chart.drawText(
		ChartRecord.getPosX("subject"), ChartRecord.getPosY(index),
		"-", ChartRecord.getDefaultFontStyle()
	);

	return this.subjectText;
}