#region Using declarations
using NinjaTrader.Cbi;
using NinjaTrader.NinjaScript.Indicators;
using System;
#endregion

namespace NinjaTrader.NinjaScript.Strategies
{
    public class TwoPeriodRSI : Strategy
    {
        private SMA longTermTrend;
        private SMA shortTermTrend;
        private RSI rsi;

        protected override void OnStateChange()
        {
            if (State == State.SetDefaults)
            {
                Description = @"Taken from chapter 9 of Short Term Trading Strategies That Work";
                Name = "2 Period RSI";
                Calculate = Calculate.OnBarClose;
                EntriesPerDirection = 1;
                EntryHandling = EntryHandling.AllEntries;
                IsExitOnSessionCloseStrategy = true;
                ExitOnSessionCloseSeconds = 30;
                IsFillLimitOnTouch = false;
                MaximumBarsLookBack = MaximumBarsLookBack.TwoHundredFiftySix;
                OrderFillResolution = OrderFillResolution.Standard;
                Slippage = 0;
                StartBehavior = StartBehavior.WaitUntilFlat;
                TimeInForce = TimeInForce.Gtc;
                TraceOrders = false;
                RealtimeErrorHandling = RealtimeErrorHandling.StopCancelClose;
                StopTargetHandling = StopTargetHandling.PerEntryExecution;
                BarsRequiredToTrade = 20;
                IsInstantiatedOnEachOptimizationIteration = true;
            }
            else if (State == State.DataLoaded)
            {
                longTermTrend = SMA(200);
                shortTermTrend = SMA(5);
                rsi = RSI(2, 1);
            }
        }

        protected override void OnBarUpdate()
        {
            if (CurrentBar < 200) return;

            // Entries
            int quantity = (int)Math.Floor(1000000 / Close[0]);
            if (Close[0] > longTermTrend[0] && rsi[0] < 5)
            {
                if (Position.MarketPosition != MarketPosition.Long)
                    EnterLong(quantity);
            }
            else if (Close[0] < longTermTrend[0] && rsi[0] > 95)
            {
                if (Position.MarketPosition != MarketPosition.Short)
                    EnterShort(quantity);
            }

            // Exits
            if (Position.MarketPosition == MarketPosition.Long && Close[0] > shortTermTrend[0])
                ExitLong();
            else if (Position.MarketPosition == MarketPosition.Short && Close[0] < shortTermTrend[0])
                ExitShort();
        }

        public override string DisplayName
        {
            get { return Name; }
        }
    }
}