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;
using System.Diagnostics;

namespace Proigral
{
    public partial class Form1 : Form
    {
        public bool track_box_hide = true;
        public bool video_hide = true;
        public int video_go_back = 0;

        public Form1()
        {
            InitializeComponent();


        }

        private void play_btn_Click(object sender, EventArgs e)
        {

        }

        private void pause_btn_Click(object sender, EventArgs e)
        {

        }

        private void forward_btn_Click(object sender, EventArgs e)
        {
            try
            {
                if (track_box.SelectedIndex >= 0)
                {
                    int select = track_box.SelectedIndex;
                    track_box.SelectedIndex = select + 1;
                }
            }
            catch (ArgumentOutOfRangeException) { }
        }

        private void back_btn_Click(object sender, EventArgs e)
        {
            try
            {
                if (track_box.SelectedIndex > 0)
                {
                    int select = track_box.SelectedIndex;
                    track_box.SelectedIndex = select - 1;
                }
            }
            catch (ArgumentOutOfRangeException) { }
        }

        private void stop_btn_Click(object sender, EventArgs e)
        {

        }
        string[] files, paths;
        private void choose_track_btn_Click(object sender, EventArgs e)
        {
            if (OpenMP3MP4FileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                files = OpenMP3MP4FileDialog.SafeFileNames;
                paths = OpenMP3MP4FileDialog.FileNames;
                for (int i = 0; i < files.Length; i++)
                {
                    track_box.Items.Add(files[i]);
                }
            }
        }

        private void delete_track_Click(object sender, EventArgs e)
        {
            try
            {
                if (track_box.SelectedIndex >= 0)
                {
                    int select = track_box.SelectedIndex;
                    track_box.Items.RemoveAt(track_box.SelectedIndex);
                    track_box.SelectedIndex = select - 1;
                }
            }
            catch (IndexOutOfRangeException) { }
        }

        private void save_tracklist_Click(object sender, EventArgs e)
        {
            try
            {
                if (track_box.Items.Count > 0)
                {
                    using (TextWriter TW = new StreamWriter("list.txt"))
                    {
                        foreach (string itemText in track_box.Items)
                        {
                            TW.WriteLine(itemText);
                        }
                    }
                }
            }
            catch (Exception) { }
        }

        private void clear_trackbox_Click(object sender, EventArgs e)
        {
            track_box.Items.Clear();
        }

        private void open_tracklist_Click(object sender, EventArgs e)
        {
            int index;
            string line;
            if (OpenTXTFileDialog.ShowDialog() == DialogResult.OK)
            {
                //здесь происходит удаление имеющихся записей в  listBox1
                if (track_box.Items.Count != 0)
                    for (index = track_box.Items.Count - 1; index >= 0; index--)
                        track_box.Items.RemoveAt(index);

                string fileName = OpenTXTFileDialog.FileName;
                FileStream sss = File.Open(fileName, FileMode.Open, FileAccess.Read);
                if (sss != null)
                {
                    StreamReader reader = new StreamReader(sss);
                    while ((line = reader.ReadLine()) != null)
                        track_box.Items.Add(line);
                    sss.Close();
                }
            }
        }

        private void track_list_btn_Click(object sender, EventArgs e)
        {

            if (this.Height == 780 | this.Height == 505)
            {
                track_box_hide = true;
            }
            else
            {
                track_box_hide = false;
            }
            if (track_box_hide)
            {
                track_box.Visible = false;
                this.Height -= 230;
                video_btn.Top = video_go_back;
                video_btn.Top = track_box.Top + 5;
                video.Top = video_btn.Top + 32;
            }
            if (!track_box_hide)
            {
                track_box.Visible = true;
                this.Height += 400;
                video_btn.Top = 438;
                video.Top = video_btn.Top + 32;
            }
        }

        private void video_btn_Click(object sender, EventArgs e)
        {
            if (this.Height == 780)
            {
                video_hide = true;
            }
            else
            {
                video_hide = false;
            }
            if (video_hide)
            {
                video.Visible = false;
                this.Height -= 275;
            }
            if (!video_hide)
            {
                video.Visible = true;
                this.Height += 275;
            }
        }
    }
}