using System;
using Gtk;

namespace DMX2
{
	public partial class GestionMidiUI : Gtk.Dialog
	{

		Gtk.ListStore lsDetect;
		Gtk.ListStore lsKnown;

		uint timer=0;

		public GestionMidiUI ()
		{
			this.Build ();

			lsDetect  = new Gtk.ListStore(typeof(string));
			lsKnown = new Gtk.ListStore(typeof(MidiEventProvider.MidiDev));


			var nameCol = new Gtk.TreeViewColumn();
			var nameCell = new Gtk.CellRendererText();
			nameCol.Title = "Interfaces";
			nameCol.PackStart(nameCell,true);
			nameCol.AddAttribute(nameCell,"text",0);
			this.listDetect.AppendColumn(nameCol);

			var mdCol = new Gtk.TreeViewColumn();
			var mdCell = new Gtk.CellRendererText();
			mdCol.Title = "Interfaces";
			mdCol.PackStart(mdCell,true);
			mdCol.SetCellDataFunc(mdCell, new Gtk.TreeCellDataFunc(	RenderMidiDev) );
			this.listKnown.AppendColumn(mdCol);

			listDetect.Model = lsDetect;
			listKnown.Model = lsKnown;


			FillLsDetect();
			FillLsKnown();


			timer = GLib.Timeout.Add(500,Refresh);

			Destroyed+= HandleDestroyed;


			spinNbPage.Value = MidiEventProvider.Maxpage;
			chkNoChanZero.Active = MidiEventProvider.UnpaginatedChannels.Contains(0);

		}

		void HandleDestroyed (object sender, EventArgs e)
		{
			if(timer!=0)
			GLib.Source.Remove(timer);
		}

		bool Refresh ()
		{
			if (MidiEventProvider.GuiRefreshFlag) {
							FillLsDetect();
			FillLsKnown();
			}
			return true;
		}

		void RenderMidiDev (Gtk.TreeViewColumn tree_column, Gtk.CellRenderer cell, Gtk.TreeModel tree_model, Gtk.TreeIter iter)
		{
			MidiEventProvider.MidiDev dev =  tree_model.GetValue (iter, 0) as MidiEventProvider.MidiDev;
			(cell as Gtk.CellRendererText).Text = dev.ConnectedPorts.Count>0
				?string.Format("{0} ({1} connectés)",dev.Name,dev.ConnectedPorts.Count)
					:string.Format("{0} (Déconnecté)",dev.Name);
		}

		void FillLsDetect ()
		{
			lsDetect.Clear ();
			foreach (var dev in AlsaSeqLib.EnumClients ()) {
				if(dev.Id== AlsaSeqLib.ClientId || dev.Id == 0 || dev.Id == 14 ) continue;
				foreach(var port in dev.Ports){
					if((port.Caps & AlsaSeqLib.SND_SEQ_PORT_CAP_READ) == AlsaSeqLib.SND_SEQ_PORT_CAP_READ){
						string name = dev.Name+":"+port.Name;
						if(!MidiEventProvider.IsKnownDevice(name))
							lsDetect.AppendValues(name);
					}
				}
			}
		}

		void FillLsKnown ()
		{
			lsKnown.Clear ();
			foreach (var dev in MidiEventProvider.KnownDevices) {
				lsKnown.AppendValues(dev);
			}
		}
		protected void OnButtonCloseClicked (object sender, EventArgs e)
		{
			Destroy();
		}		

		protected void OnListDetectCursorChanged (object sender, EventArgs e)
		{
			btnActiv.Sensitive = (listDetect.Selection.CountSelectedRows() >0);
		}		

		protected void OnListKnownCursorChanged (object sender, EventArgs e)
		{
			chkFB.Sensitive = btnDesactiv.Sensitive = (listKnown.Selection.CountSelectedRows() >0);
			TreeIter iter;
			if(!listKnown.Selection.GetSelected(out iter)) return;
			MidiEventProvider.MidiDev dev = lsKnown.GetValue(iter,0) as MidiEventProvider.MidiDev ;
			chkFB.Active = dev.HasFeedback;

		}		

		protected void OnBtnActivClicked (object sender, EventArgs e)
		{
			TreeIter iter;
			if(!listDetect.Selection.GetSelected(out iter)) return;
			string name= lsDetect.GetValue(iter,0) as string;
			MidiEventProvider.ConnectDevice(name);
			FillLsDetect ()	;
			FillLsKnown();

		}		

		protected void OnBtnDesactivClicked (object sender, EventArgs e)
		{
			TreeIter iter;
			if(!listKnown.Selection.GetSelected(out iter)) return;
			MidiEventProvider.MidiDev dev = lsKnown.GetValue(iter,0) as MidiEventProvider.MidiDev ;
			MidiEventProvider.DisconnectDevice(dev);
			FillLsDetect ()	;
			FillLsKnown();

		}		


		protected void OnChkFBToggled (object sender, EventArgs e)
		{
			TreeIter iter;
			if(!listKnown.Selection.GetSelected(out iter)) return;
			MidiEventProvider.MidiDev dev = lsKnown.GetValue(iter,0) as MidiEventProvider.MidiDev ;
			dev.HasFeedback = chkFB.Active;

			MidiEventProvider.RefreshFeedback(dev.Name);

		}
		protected void OnChkNoChanZeroToggled (object sender, EventArgs e)
		{
			MidiEventProvider.UnpaginatedChannels.Clear();
			if(chkNoChanZero.Active)
				MidiEventProvider.UnpaginatedChannels.Add(0);
		}		

		protected void OnSpinNbPageValueChanged (object sender, EventArgs e)
		{
			MidiEventProvider.Maxpage = (uint) spinNbPage.ValueAsInt;
		}


	}
}