using System;
using System.Runtime.InteropServices;

namespace DMX2
{
	public partial class MidiEventProvider : IEventProvider, IDisposable 
	{

		IntPtr midi_seq_handle = IntPtr.Zero;
		int midiport;

		public MidiEventProvider ()
		{
			snd_seq_open(out midi_seq_handle, "default",SND_SEQ_OPEN_INPUT,0);
			snd_seq_set_client_name(midi_seq_handle,"DMX2");
			midiport = snd_seq_create_simple_port(midi_seq_handle,"dmx_ctrl",
			                                      SND_SEQ_PORT_CAP_WRITE + SND_SEQ_PORT_CAP_SUBS_WRITE, 
			                                      SND_SEQ_PORT_TYPE_APPLICATION);

			Info.Publish(string.Format("Midi port {0}",midiport));
		}

		public void Process ()
		{
			int i= snd_seq_event_input_pending(midi_seq_handle,1);
			if( i!=0)Info.Publish(string.Format("i={0}",i));
			IntPtr ev;

			/*
			while (snd_seq_event_input_pending(midi_seq_handle,1)>0) {


				snd_seq_event_t evS =(snd_seq_event_t) Marshal.PtrToStructure(ev,typeof(snd_seq_event_t));

				Info.Publish(evS.data_control_value.ToString());

				snd_seq_free_event(ev);
			}*/

		}

		#region IDisposable implementation
		public void Dispose ()
		{
			snd_seq_close(midi_seq_handle);
		}
		#endregion

		#region IEventProvider implementation
		string[] IEventProvider.GetEventList ()
		{
			throw new System.NotImplementedException ();
		}

		bool IEventProvider.Bind (string eventId, IEventTarget target)
		{
			throw new System.NotImplementedException ();
		}

		void IEventProvider.Unbind (string eventId, IEventTarget target)
		{
			throw new System.NotImplementedException ();
		}

		Gtk.Menu IEventProvider.GetProviderSubMenu (Gtk.ButtonPressEventHandler handler)
		{
			throw new System.NotImplementedException ();
		}

		string IEventProvider.MenuName {
			get {
				throw new System.NotImplementedException ();
			}
		}
		#endregion		




	}
}