using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Text;
using TSLab.DataSource;
using TSLab.Script;
using TSLab.Script.Handlers;
using TSLab.Script.Realtime;

namespace MyStrategies {
  public class LogFinInfoLastUpdate : IExternalScript {
    public void Execute(IContext context, ISecurity security) {
      string fileName = @"D:\LogFinInfoLastUpdate_" + security.Symbol + ".txt";

      var bars = security.Bars;
      var barsCount = bars.Count;
      var bar = barsCount > 0 ? bars[barsCount - 1] : null;
      var barStarts = bar != null ? bar.Date : DateTime.MinValue;
      var barEnds = bar != null ? bar.Date + security.IntervalInstance.Shift : DateTime.MinValue;

      const string headerStr = "localTime;FinInfo.LastUpdate;timeDelta;lastBarStart;lastBarEnd";
      const string dfmt = "yyyy-MM-dd_HH:mm:ss.fff";
      
      var tm = DateTime.Now;
      var lu = security.FinInfo != null ? security.FinInfo.LastUpdate : new DateTime(0);
      
      var str = string.Format("{0}; {1}; {2}; {3}; {4}", tm.ToString(dfmt), lu.ToString(dfmt),
        tm.TimeOfDay - lu.TimeOfDay, barStarts.ToString(dfmt), barEnds.ToString(dfmt));

      using (var sw = new StreamWriter(fileName, true, Encoding.ASCII)) {
        if (sw.BaseStream.Length == 0)
          sw.WriteLine(headerStr);
        sw.WriteLine(str);
      }

      //context.Log(str, 0);
    }
  }
}