using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;

namespace WindowsFormsApp6
{
    public partial class Form1 : Form
    {
        double firstX, firstY, secondX, secondY, thirdX, thirdY, rw, cl = 0.0;

        int count = 0;

        string x = "";
        string y = "";

        byte MinMax = 0; //0 equals rising, 1 equals falling

        //double Max = new Array[];
        //double Min = new Array[];

        private void button2_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            using (var reader = new StreamReader(@"D:data.csv"))
            {
                List<string> listA = new List<string>();
                List<string> listB = new List<string>();
                //List<int> peakIndexes;
                //List<int> valleyIndexes;

                while (!reader.EndOfStream)
                {

                    var line = reader.ReadLine();
                    var values = line.Split(',');

                    listA.Add(values[0]); //contains all the x coords
                    listB.Add(values[1]); //contains all the y coords

                    //peakIndexes = new List<int>();
                    //valleyIndexes = new List<int>();

                        //string[] xPoints = listA.ToArray();
                        //string[] yPoints = listB.ToArray();

                        //listBox1.Items.Add(values[0]);
                        //listBox2.Items.Add(values[1]);
                }
            }
        }

        public void GetValleysAndPeaks(double[] yValues, out List<int> peakIndexes, out List<int> valleyIndexes)
        {
            peakIndexes = new List<int>();
            valleyIndexes = new List<int>();

            bool directionUp = yValues[0] <= yValues[1];
            for (int i = 1; i < yValues.Length - 1; i++)
            {
                if (directionUp && yValues[i + 1] < yValues[i])
                {
                    peakIndexes.Add(i);
                    directionUp = false;
                }
                else if (!directionUp && yValues[i + 1] > yValues[i])
                {
                    valleyIndexes.Add(i);
                    directionUp = true;
                }
            }
        }
    }
}