/*
 * Created by SharpDevelop.
 * User: Sergey
 * Date: 13.01.2012
 * Time: 17:05
 * 
 * To change this template use Tools | Options | Coding | Edit Standard Headers.
 */
using System;
using System.Collections.Generic;
using TSLab.Script;
using TSLab.Script.Handlers;
using TSLab.DataSource;
using TSLab.Script.Helpers;

namespace MyIndicators {
  [HandlerCategory("MyIndicators")]		
	  public class LinearTransform: ISecurityInputs, ISecurityReturns, ITwoSourcesHandler, IStreamHandler, IDoubleInput1, IDoubleInput2
    {
           public ISecurity Execute(ISecurity source1, IDoubleInput1 factor, IDoubleInput2 shift)
        {    	
           	double f = double.Parse(factor.ToString());
           	double s = double.Parse(shift.ToString());
           	var bars = new List<Bar>(source1.Bars.Count);
            for (int i = 0; i < source1.Bars.Count; i++)
            {
            	var bar = source1.Bars[i];
            	var o = bar.Open;
            	var h = bar.High;
            	var l = bar.Low;
            	var c = bar.Close;
            	            	
                var newBar = new Bar(bar.Color, bar.Date,
            	                     o * f + s,
                                     h * f + s,
                                     l * f + s,
                                     c * f + s,
                                     bar.Volume){ Ask = bar.Ask, Bid = bar.Bid, AskQty = bar.AskQty, BidQty = bar.BidQty };
            	bars.Add(newBar);
            }
            return source1.CloneAndReplaceBars(bars);
        }
    }
}