using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization;
using System.Windows.Forms.DataVisualization.Charting;
using Skender.Stock.Indicators;

namespace TestCharCore5
{
    public partial class Form1 : Form
    {
        private System.Windows.Forms.DataVisualization.Charting.Chart chart1;
        public class SimpleCandleSeries
        {
            public string Name { get; set; }
            public List<SimpleCandle> Series { get; set; }
        }

        public class SimpleCandle
        {
            public decimal High { get; set; }
            public decimal Low { get; set; }
            public decimal Open { get; set; }
            public decimal Close { get; set; }
            public decimal Volume { get; set; }
            public DateTime dateTime { get; set; }
        }


        Random rnd = new Random();

        public Form1()
        {
			InitializeComponent();
            System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea1 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();
            System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea2 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();
            System.Windows.Forms.DataVisualization.Charting.Legend legend1 = new System.Windows.Forms.DataVisualization.Charting.Legend();
            System.Windows.Forms.DataVisualization.Charting.Series series1 = new System.Windows.Forms.DataVisualization.Charting.Series();
            System.Windows.Forms.DataVisualization.Charting.Series series2 = new System.Windows.Forms.DataVisualization.Charting.Series();
            this.chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();
            this.chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();
            ((System.ComponentModel.ISupportInitialize)(this.chart1)).BeginInit();
            this.SuspendLayout();
            // 
            // chart1
            // 
            chartArea1.Name = "ChartArea1";
            chartArea2.Name = "ChartArea2";
            this.chart1.ChartAreas.Add(chartArea1);
            this.chart1.ChartAreas.Add(chartArea2);
            legend1.Name = "Legend1";
            this.chart1.Legends.Add(legend1);
            this.chart1.Location = new System.Drawing.Point(0, 0);
            this.chart1.Name = "chart1";
            series1.ChartArea = "ChartArea1";
            series1.Legend = "Legend1";
            series1.Name = "Series1";
            series2.ChartArea = "ChartArea1";
            series2.Legend = "Legend1";
            series2.Name = "EMA";
            this.chart1.Series.Add(series1);
            this.chart1.Series.Add(series2);
            this.chart1.Size = new System.Drawing.Size(300, 300);
            this.chart1.TabIndex = 0;
            this.chart1.Text = "chart1";
            //chart1.ChartAreas[0].Position.Y = 60;
            //chart1.ChartAreas[0].Position.Height = 60;
            this.chart1.Size = new System.Drawing.Size(353, 428);
            this.Controls.Add(this.chart1);
            ((System.ComponentModel.ISupportInitialize)(this.chart1)).EndInit();
            this.ResumeLayout(false);
        }

		
        private void button1_Click(object sender, EventArgs e)
        {
            chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.LineWidth = 0;
            chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.LineWidth = 0;
           // chart1.ChartAreas["ChartArea1"].AxisY.Maximum = 350;
            //chart1.ChartAreas["ChartArea1"].AxisY.Minimum = 100;
            // Random candledata
            var data = new SimpleCandleSeries()
            {
                //Name = "CandleData",
                Name = "Series1",
                Series = new List<SimpleCandle>()
            };

            decimal initopen = 10m;
            for (int i = 0; i < 120; i++)
            {
                if (i > 0) { initopen = data.Series[i - 1].Close; }
                int randompricechange = rnd.Next(-6, 8);
                data.Series.Add(new SimpleCandle() { dateTime = DateTime.Now.AddHours(i), Open = initopen, Close = initopen + randompricechange, High = initopen + 1, Low = initopen + randompricechange - 1, Volume = 1m });
            }

            //Paint candles
            CandleMain(data);

            //calc ema
            List<Skender.Stock.Indicators.Quote> CandleAsSkendersQuote = ConvertToSkendersQuote(data);
            List<Skender.Stock.Indicators.EmaResult> emaresult = Skender.Stock.Indicators.Indicator.GetEma(CandleAsSkendersQuote, 2).ToList();
            var decimals = emaresult.Select(f => f.Ema.GetValueOrDefault()).ToList();

            //paint ema
            PaintDecimalSeries("EMA", decimals);

        }

        public void PaintDecimalSeries(string seriesname, List<decimal> values)
        {
            var find = chart1.Series.IndexOf(seriesname);
            if (find >= 0)
            {
                chart1.Series.RemoveAt(find);
            }
            chart1.Series.Add(seriesname);
            chart1.Series[seriesname].ChartType = SeriesChartType.Line;
            chart1.Series[seriesname].YValueType = ChartValueType.Single;
            chart1.Series[seriesname].BorderWidth = 2    ;
            chart1.Series[seriesname].Color = Color.Purple;
            chart1.Series[seriesname].BorderDashStyle = ChartDashStyle.Solid;


            for (int i = 0; i < values.Count; i++)
            {
                chart1.Series[seriesname].Points.Add(new DataPoint() { YValues = new double[] { (double)values[i] } });
            }

        }

        public void CandleMain(SimpleCandleSeries simpleCandleSeries)
        {
            try
            {
                var find = chart1.Series.IndexOf(simpleCandleSeries.Name);
                if (find >= 0)
                {
                    chart1.Series.RemoveAt(find);
                }

                chart1.Series.Add(simpleCandleSeries.Name);
                chart1.Series[simpleCandleSeries.Name].LegendText = simpleCandleSeries.Name;
                chart1.Series[simpleCandleSeries.Name].ChartType = SeriesChartType.Candlestick;
                chart1.Series[simpleCandleSeries.Name].XValueType = ChartValueType.String;
                chart1.Series[simpleCandleSeries.Name].YValueType = ChartValueType.Single;
                chart1.Series[simpleCandleSeries.Name].BorderWidth = 3;
                chart1.Series[simpleCandleSeries.Name].CustomProperties = "PriceDownColor=Green, PriceUpColor=Red";

                for (int i = 0; i < simpleCandleSeries.Series.Count; i++)
                {
                    var ser = simpleCandleSeries.Series;
                    chart1.Series[simpleCandleSeries.Name].Points.AddXY(ser[i].dateTime.ToLocalTime().ToString("ddd HH:mm"), ser[i].High, ser[i].Low, ser[i].Close, ser[i].Open);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            
        }

        public List<Skender.Stock.Indicators.Quote> ConvertToSkendersQuote(SimpleCandleSeries simpleCandleSeries)
        {
            List<Skender.Stock.Indicators.Quote> quotes = new List<Skender.Stock.Indicators.Quote>();
            foreach (var item in simpleCandleSeries.Series)
            {
                quotes.Add(ConvertToSkendersQuote(item));
            }
            return quotes;
        }

        public Skender.Stock.Indicators.Quote ConvertToSkendersQuote(SimpleCandle simpleCandleSeries)
        {
            return new Skender.Stock.Indicators.Quote() { Close = simpleCandleSeries.Close, High = simpleCandleSeries.High, Date = simpleCandleSeries.dateTime, Low = simpleCandleSeries.Low, Open = simpleCandleSeries.Open, Volume = simpleCandleSeries.Volume };
        }
    }


    }