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;

namespace WinFormExpl
{
    public partial class Form1 : Form
    {
        FileInfo loadedFile = null;
        int counter;
        readonly int counterInitialValue;


        public Form1()
        {
            InitializeComponent();
            counterInitialValue = 40;
        }

        private void miOpen_Click(object sender, EventArgs e)
        {
            InputDialog dlg = new InputDialog();
            if (dlg.ShowDialog() == DialogResult.OK)
            {
                string result = dlg.Path;
                //MessageBox.Show(result);
                // TODO: további lépések...
                listView1.Items.Clear();
                if(Directory.Exists(result))
                {
                    foreach (string s in Directory.GetFiles(result))
                    {
                        FileInfo fi = new FileInfo(s);
                        var item = listView1.Items.Add(new ListViewItem(new string[] {fi.Name, fi.Length.ToString()}));
                        item.Tag = fi.FullName;
                    }
                }
            }

        }

        private void miExit_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void listView1_SelectedIndexChanged(object sender, EventArgs e)
        {

            if(listView1.SelectedItems.Count == 0)
            {
                lName.Text = "Name:";
                lCreated.Text = "Created:";
            }

            else
            {
                string name = listView1.SelectedItems[0].Text;
                lName.Text = "Name: " + name;

                FileInfo fi = new FileInfo(listView1.SelectedItems[0].Tag.ToString());
                lCreated.Text = "Created: " + fi.CreationTime;
            }
        }

        private void listView1_DoubleClick(object sender, EventArgs e)
        {

            if (listView1.SelectedItems.Count == 1)
            {
                counter = counterInitialValue;
                loadedFile = new FileInfo(listView1.SelectedItems[0].Tag.ToString());
                reloadTimer.Start();
                try
                {
                    tContent.Text = File.ReadAllText(listView1.SelectedItems[0].Tag.ToString());
                }
                catch (Exception ex)
                {

                }
            }
            else
            {
                tContent.Clear();
            }

        }

        private void reloadTimer_Tick(object sender, EventArgs e)
        {
            counter--;
            // Fontos! Ez váltja ki a Paint eseményt és ezzel a
            // a téglalap újrarajzolását
            detailsPanel.Invalidate();
            if (counter <= 0)
            {
                counter = counterInitialValue;
                tContent.Text = File.ReadAllText(loadedFile.FullName);
            }
        }

        private void detailsPanel_Paint(object sender, PaintEventArgs e)
        {
            //((counterInitialValue-counter)/counterInitialValue)*120
            if (loadedFile != null)
                e.Graphics.FillRectangle(new SolidBrush(Color.Green), 0, 0, (1-((counterInitialValue - counter) / counterInitialValue)) * 120, 5);

        }
    }
}