private async void login_btn_Click(object sender, EventArgs e)
 {
     music_list.Hide();
     if (!account.IsAuthorized)
     {
         BassCore.Stop();
         PlayerDefaultSet(true);
         play_btn.Image = Properties.Resources.play_gray;
         using (var stream = new FileStream(Properties.Resources.UserDataJSONPath, FileMode.Open))
         {
             using (var stream2 = new FileStream(Properties.Resources.SecretUserJSONDataPath, FileMode.Open))
             {
                 using (var reader = new StreamReader(stream))
                 {
                     UserDataJSON = reader.ReadToEnd();
                     if (string.IsNullOrEmpty(UserDataJSON))
                     {
                         var form = new Sign_in_form(this);
                         form.Show();
                         this.Hide();
                         form.BringToFront();
                     }
                     else
                     {
                         LoadBar bar = new LoadBar();
                         this.Hide();
                         bar.Show();
                         SecretUserJSON = new StreamReader(stream2).ReadToEnd();
                         Client         = new VKManager();
                         Task t = new Task(() =>
                         {
                             account = Client.AuthentificateFromFile(UserDataJSON, SecretUserJSON);
                         });
                         t.Start();
                         await t;
                         this.Show();
                         RefreshLoginPanel();
                         bar.Close();
                     }
                 }
             }
         }
     }
     if (account.IsAuthorized && closed)
     {
         login_btn.Location   = new Point(0, 0);
         userPicture.Location = new Point(5, 0);
     }
     Refresh();
 }
 private void My_music_Click(object sender, EventArgs e)
 {
     random_play_btn.Enabled = true;
     left_arrow_btn.Enabled  = true;
     play_btn.Enabled        = true;
     replay_btn.Enabled      = true;
     volume_btn.Enabled      = true;
     right_arrow_btn.Enabled = true;
     music_list.Show();
     selectedMusicIndex = -1;
     selectedMusic      = null;
     if (account.IsAuthorized && downloaded)
     {
         var audioInfos = Client.AudioList.OrderBy((c) => c.Title).ToList();
         music_list.Controls.Clear();
         foreach (var music in audioInfos)
         {
             var item = new Music_Item()
             {
                 ArtistName = music.Artist,
                 Name       = music.Title + music.Artist
             };
             item.Size        = new Size(music_list.Size.Width - 26, item.Size.Height);
             item.MouseClick += Item_MouseClick;
             music_list.Controls.Add(item);
             item.Index = music_list.Controls.IndexOf(item);
         }
     }
     else if (!account.IsAuthorized)
     {
         if (Client == null)
         {
             Client = new VKManager();
         }
         music_list.Controls.Clear();
         foreach (string music in Client.FileList)
         {
             var item = new Music_Item();
             item.Name        = Path.GetFileNameWithoutExtension(music);
             item.ArtistName  = Properties.Resources.UnknownMusicArtist;
             item.Size        = new Size(music_list.Size.Width - 26, item.Size.Height);
             item.MouseClick += Item_MouseClick;
             music_list.Controls.Add(item);
             item.Index = music_list.Controls.IndexOf(item);
         }
         Client = null;
     }
     Refresh();
 }
        private void Play(object sender)
        {
            if (!playing)
            {
                if (selectedMusicIndex == -1)
                {
                    music_Track_Bar.Enabled = false;
                    volume_bar.Enabled      = false;
                    volume_btn.Enabled      = false;
                    return;
                }

                ((Button)sender).Image = Properties.Resources.pause_white;
                if (Client == null)
                {
                    Client = new VKManager();
                }
                if (newPlaying)
                {
                    BassCore.Play(Client.FileList[selectedMusicIndex], BassCore.Volume);
                }
                else
                {
                    BassCore.Continue(BassCore.Stream);
                }
                PlayerSet();
            }
            else
            {
                ((Button)sender).Image = Properties.Resources.play_white;
                if (selectedMusicIndex == prevSelectedMusicIndex)
                {
                    BassCore.Pause();
                    PlayerDefaultSet(false);
                }
                else if (selectedMusicIndex != prevSelectedMusicIndex)
                {
                    BassCore.Stop();
                    PlayerDefaultSet(true);
                }
            }
            ((Button)sender).Refresh();
            prevSelectedMusicIndex = selectedMusicIndex;
        }
        private void logout_btn_Click(object sender, EventArgs e)
        {
            if (playing)
            {
                BassCore.Stop();
                PlayerDefaultSet(true);
            }

            music_list.Hide();
            music_list.Controls.Clear();
            login_btn.Location   = new Point(12, 0);
            userPicture.Location = new Point(12, 0);
            account             = new VKAccount();
            Client              = null;
            login_btn.Text      = "Sign  In";
            login_btn.Image     = Properties.Resources.login_32;
            userPicture.Visible = false;
            Refresh();
            logout_btn.Enabled     = false;
            logout_btn.Visible     = false;
            light_panel.Location   = new Point(3, 0);
            title_btn_general.Text = new string(' ', 4) + login_btn.Text;
        }
        public Player()
        {
            bool rememberMe = false;

            InitializeComponent();
            //SetRoundedShape(this, 40);
            account = new VKAccount();
            InitFolders();

            if (rememberMe)
            {
                try
                {
                    Client = new VKManager();
                    Client.AuthentificateFromFile(File.ReadAllText(Properties.Resources.UserDataJSONPath), Properties.Resources.SecretUserJSONDataPath);
                }
                catch (Exception ex)
                {
                    MusicMessageBox box = new MusicMessageBox();
                    box.ShowWindow(this, ex.Message);
                }
            }
        }