using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using iTunesLib;
using System.Diagnostics;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;

/* TODO:
 * - Hide console window
 * - Debug event firing
 * - Change icon
 * - Traverse to genius recommendations?
 */
namespace iTunesPlaylistTrayApp
{
    public class SysTrayApp : Form
    {
        [STAThread]
        public static void Main()
        {
            Application.Run(new SysTrayApp());
        }

        static iTunesApp itapp;
        static IITLibraryPlaylist lastPlaylist;
        public NotifyIcon trayIcon;
        private ContextMenu trayMenu;

       
        public SysTrayApp()
        {
            
            // Create a simple tray menu with only one item.
            trayMenu = new ContextMenu();
            trayMenu.MenuItems.Add("Exit", OnExit);

            // Create a tray icon. In this example we use a
            // standard system icon for simplicity, but you
            // can of course use your own custom icon too.
            trayIcon = new NotifyIcon();
            trayIcon.Text = "Play Genius Playlist";
            trayIcon.Icon = new Icon(SystemIcons.Application, 40, 40);
            trayIcon.Click += new EventHandler(trayIcon_Click);

            // Add menu to tray icon and show it.
            trayIcon.ContextMenu = trayMenu;
            trayIcon.Visible = true;

            
        }

        void trayIcon_Click(object sender, EventArgs e)
        {
            PlayPlaylist();
        }

        //private static ManualResetEvent _resetEvent;
        public static void PlayPlaylist()
        {
            //_resetEvent = new ManualResetEvent(false);
            itapp = new iTunesApp();
            itapp.OnPlayerStopEvent += new _IiTunesEvents_OnPlayerStopEventEventHandler(itapp_OnPlayerStopEvent);

            lastPlaylist = itapp.LibraryPlaylist;

            itapp.Play();
            // Block until the resetEvent has been Set() or
            // give up waiting after 5 minutes
            //_resetEvent.WaitOne(1000 * 5 * 60); 
        }

        static void itapp_OnPlayerStopEvent(object iTrack)
        {
            Debug.WriteLine("Stop Event fired");
            
            // Determine whether the user fired the event, or whether the song finished on its own.
            // if the song finished on its own (i.e. player reset to 0 seconds)
            if (itapp.PlayerPosition == 0)
            {
                var curList = itapp.CurrentPlaylist;

                // If it's still in the (genius) playlist it started out in, and it's not the last song in the playlist
                if (curList == lastPlaylist && itapp.CurrentTrack != curList.Tracks[curList.Tracks.Count - 1])
                {
                    itapp.NextTrack();
                    itapp.Play();
                }
            }
        }

        protected override void OnLoad(EventArgs e)
        {
            Visible = false; // Hide form window.
            ShowInTaskbar = false; // Remove from taskbar.

            base.OnLoad(e);
        }

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

        protected override void Dispose(bool isDisposing)
        {
            if (isDisposing)
            {
                // Release the icon resource.
                trayIcon.Dispose();
            }

            base.Dispose(isDisposing);
        }
    }
}