/* 
* This file is part of the "House of the Future" showcase project by M2H (http://www.M2H.nl)
*  The original author of this code Mike Hergaarden.
*  Feel free to use this code for your own projects, drop me a line if you made something exciting! 
*/
//Buy, sell, sell!
#pragma strict

import System.DateTime;
import System.IO;

private var monthStrings : String[] = new String[13];
private var lineRenderer : LineRenderer;

public var graphLB : Transform;
public var graphTR : Transform;
public var graphDummy : Transform;

private var realMaxY : float;
private var realMinY : float;
private var realMaxX : float;
private var realMinX : float;

private var stockDataList : ArrayList = new ArrayList();
private var maxStockY : float = 0;
private var minStockY : float = 0;

function Awake(){
	lineRenderer = GetComponent(LineRenderer);
	
	monthStrings[1]="Jan";
	monthStrings[3]="Feb";
	monthStrings[4]="Mar";
	monthStrings[4]="Apr";
	monthStrings[5]="May";
	monthStrings[6]="Jun";
	monthStrings[7]="Jul";
	monthStrings[8]="Aug";
	monthStrings[9]="Sep";
	monthStrings[10]="Oct";
	monthStrings[11]="Nov";
	monthStrings[12]="Dec";
	
	realMaxY = graphTR.position.y;
	realMinY = graphLB.position.y;
	realMaxX = graphTR.localPosition.x;
	realMinX = graphLB.localPosition.x;

	ReloadStocks();
}

public var stockName : String = "NASDAQ:GOOG";
public var daysBack : int = 14;
public var stockTitle : String = "NASDAQ:GOOG - Last 14 days - Latest: ";

function ReloadStocks () {
	minStockY = maxStockY=0;
	/// ** DOWNLOAD STOCK DATA **///
	var now : System.DateTime = System.DateTime.Now;
	
	var dayStringNow : int  = now.Day; 
	var monthStringNow : int = now.Month; 
	var yearStringNow : int = now.Year; 
	
	var prev : System.DateTime = now.AddDays(-daysBack);
	
	var dayStringPrev : int  = prev.Day; 
	var monthStringPrev : int = prev.Month; 
	var yearStringPrev : int = prev.Year; 
	
	var url : String = "http://www.google.com/finance/historical?q="+stockName+"&startdate="+monthStrings[monthStringPrev]+"+"+dayStringPrev+","+yearStringPrev+"&enddate="+monthStrings[monthStringNow]+"+"+dayStringNow+","+yearStringNow+"&output=csv";
	//Debug.Log(url);
	
	var www : WWW = new WWW (url);
	yield www;
	var stockData : String = www.data;
	
	var i : int =0;
	var splitted : String[] = stockData.Split("\n"[0]);	
	for(var aLine  : String in splitted){
		if(i==0){
			i++;
			continue;
		}
		if(i>14){
			break;
		}
		var data : String[] = aLine.Split(","[0]);	
		data[4] = data[4].Replace(".", ",");
		var value : float =  parseFloat(data[4]);
		if(value<minStockY || minStockY==0){
			minStockY=value;
		}
		if(value>maxStockY){
			maxStockY=value;
		}		
		stockDataList.Add(value);
		i++;
	}
	
		
	//GOT DATA, CREATE DISPLAY
	i = 0;
	
	for(var j = stockDataList.Count-1;j>=0;j--){
		var valueX : float = stockDataList[j];
		graphDummy.position = graphLB.position;		
		graphDummy.localPosition.x += GetXPosOnChart((i+1), 14);
		graphDummy.localPosition.y += GetYPosOnChart(valueX);		
		lineRenderer.SetPosition(i, graphDummy.position);		
		i++;
	}
	
	var textMesh : TextMesh = GetComponent(TextMesh);
	textMesh.text = stockTitle+""+stockDataList[stockDataList.Count-1]+"\nMin: "+minStockY+" Max: "+maxStockY;
			
}

function GetXPosOnChart(item : int, totalitems: int) : float {
	return (((realMaxX-realMinX)/totalitems)*item);
}
function GetYPosOnChart(value : float) : float {
	var percent : float = ((value-minStockY)/(maxStockY-minStockY));
	return ((realMaxY-realMinY) * percent);
}