using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Matriks.Data.Symbol;
using Matriks.Engines;
using Matriks.Lean.Algotrader.AlgoBase;
using Matriks.Lean.Algotrader.Models;
using Matriks.Indicators;

namespace Matriks.Lean.Algotrader
{
    //===================================================================ACIKLAMA=======================================================================//
    //Kivanc Ozbilgic'in duseni kiranlar explorer stratejisinin IQ versiyonudur. Fiyatin trend'i yukari kirmis olmasi, trend cizgisinin baslangic ve //
    //bitis noktasi arasindaki bar sayisinin MinTrendLength'den buyuk ya da esit olmasi ve trend cizgisinin baslangic noktasindan itibaren son bara kadar//
    //olan bar sayisinin MinTrendStartDistance degerine esit ya da fazla olmasi kosulu aranir. Bu kosullari gerceklestiren semboller ekrana basilacaktir//

    //===================================================================DESCRIPTION=======================================================================//
    //IQ version of Kivanc Ozbilgic's "Duseni kiranlar" explorer(scanner) strategy. The scanner seeks to find symbols that have broken above a falling //
    //auto trendline. If the following 3 conditions are satisfied the explorer will return the symbols in the scanned list: price is above trendline, //
    //the trendline has a minimum bar distance of MinTrendLength and MinTrendStartDistance amount of bars have passed since the starting point of the //
    //trendline until current bar.

    public class Duseni_Kiranlar : Explorer
    {
        // Trendin aranacagi bar sayisi
        [Parameter(200)]
        public int TrendBarCount;

        // Trendin yuksegi yakaladigi noktalar arasindaki min bar sayisi
        [Parameter(10)]
        public int MinTrendLength;
		
        // Trendin yuksegi yakaladigi ilk noktanin son bara olan minimum mesafesi
        [Parameter(50)]
        public int MinTrendStartDistance;
		
        public ITrend Trend;

        public override void OnInit()
        {
            AddColumns(2);
            SetColumnText(0, "Trend");
            SetColumnText(1, "Kapanis");

            Trend = MyTrend(TrendBarCount, 1, TrendType.Decreasing);
        }

        public override bool OnExplorer(List<BarDataEventArgs> bardatas)
        {
            // trending degeri null ise dusen trendin bulunamadigi anlamina geliyor.
            if (Trend.CurrentValue == null)
                return false;
			
            var lastBarData = bardatas.Last();
            var close = lastBarData.BarData.Close;
			
            // trendi yukari kirmis mi
            var crossCondition = close > Trend.CurrentValue;
            // Trendin yuksege degdigi uclar arasinda yeterince bar var mi
            var lengthCondition = (Trend.SnapX2 - Trend.SnapX1) >= MinTrendLength;
            // Trendin baslangici yeterince eski bir barda mi
            var distanceCondition = (lastBarData.BarDataIndex - Trend.SnapX1) >= MinTrendStartDistance;
			
            // Kesisim, uzunluk ve baslangic bari kosullarinin tamami saglanmali
            var result = crossCondition && lengthCondition && distanceCondition;

            SetColumn(0, Math.Round(Trend.CurrentValue.Value, 4));
            SetColumn(1, Math.Round(close, 4));

            return result;
        }
    }
}