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;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        DateTime start = new DateTime();
        DateTime stop = new DateTime();
        TimeSpan currSpan = new TimeSpan();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            InitTimer();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            start = DateTime.Now;
            timer1.Enabled = true;
            button1.Enabled = false;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            stop = DateTime.Now;


            timer1.Enabled = false;
            button1.Enabled = true;

            
            string formatted_time = $"{currSpan.ToString("mm")}:{currSpan.ToString("ss")}:{currSpan.ToString("fff")}";
            if (Data.data.Count > 0)
            {
                if (Data.data[Data.data.Count - 1] != formatted_time)
                {
                    Data.data.Add(formatted_time);
                }
            }
            else
            {
                Data.data.Add(formatted_time);
            }
            
            
            label1.Text = "";
            foreach (var item in Data.data)
            {
                label1.Text += $"{item}\n";
            }
            
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            
        }


        private void timer2_Tick(object sender, EventArgs e)
        {
            currSpan = DateTime.Now - start;
            textBox1.Text = currSpan.ToString();
        }

        public void InitTimer()
        {
            timer1 = new Timer();
            timer1.Tick += new EventHandler(timer2_Tick);
            timer1.Interval = 1; // in miliseconds
            
        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        public static class Data
        {
            public static List<string> data = new List<string>();
        }
    }
}