//
// PlayQueueActions.cs
//
// Authors:
//   Gabriel Burt <gburt@novell.com>
//
// Copyright (C) 2008 Novell, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;

using Mono.Unix;

using Gtk;

using Banshee.ServiceStack;
using Banshee.Sources;

namespace Banshee.PlayQueue
{
    public class PlayQueueActions : Banshee.Gui.BansheeActionGroup
    {
        private PlayQueueSource playqueue;
        public PlayQueueActions (PlayQueueSource playqueue) : base ("playqueue")
        {
            this.playqueue = playqueue;

            Add (new ActionEntry [] {
                new ActionEntry ("AddToPlayQueueAction", Stock.Add,
                    Catalog.GetString ("Add to Play Queue"), "q",
                    Catalog.GetString ("Append selected songs to the play queue"),
                    OnAddToPlayQueue)
            });
            
            AddImportant (
                new ActionEntry ("ClearPlayQueueAction", Stock.Clear,
                    Catalog.GetString ("Clear"), null,
                    Catalog.GetString ("Remove all tracks from the play queue"),
                    OnClearPlayQueue)
            );
            
            Add (new ToggleActionEntry [] {
                new ToggleActionEntry ("ClearPlayQueueOnQuitAction", null,
                    Catalog.GetString ("Clear on Quit"), null, 
                    Catalog.GetString ("Clear the play queue when quitting"), 
                    OnClearPlayQueueOnQuit, PlayQueueSource.ClearOnQuitSchema.Get ())
            });
            
            AddUiFromFile ("GlobalUI.xml");

            playqueue.Updated += OnUpdated;
            ServiceManager.SourceManager.ActiveSourceChanged += OnSourceUpdated;

            OnUpdated (null, null);

            Register ();
        }

        public override void Dispose ()
        {
            playqueue.Updated -= OnUpdated;
            ServiceManager.SourceManager.ActiveSourceChanged -= OnSourceUpdated;
            base.Dispose ();
        }

        #region Action Handlers

        private void OnAddToPlayQueue (object o, EventArgs args)
        {
            playqueue.AddSelectedTracks (ServiceManager.SourceManager.ActiveSource);
        }

        private void OnClearPlayQueue (object o, EventArgs args)
        {
            playqueue.Clear ();
        }

        private void OnClearPlayQueueOnQuit (object o, EventArgs args)
        {
            ToggleAction action = this["ClearPlayQueueOnQuitAction"] as Gtk.ToggleAction;
            PlayQueueSource.ClearOnQuitSchema.Set (action.Active);
        }

        #endregion

        private void OnSourceUpdated (SourceEventArgs args)
        {
            OnUpdated (null, null);
        }

        private void OnUpdated (object o, EventArgs args)
        {
            Banshee.Base.ThreadAssist.ProxyToMain (UpdateActions);
        }

        private void UpdateActions ()
        {
            Source source = ServiceManager.SourceManager.ActiveSource;
            if (source != null) {
                DatabaseSource db_source = source as DatabaseSource ?? source.Parent as DatabaseSource;
                UpdateAction ("ClearPlayQueueAction", true, playqueue.Count > 0);
                UpdateAction ("AddToPlayQueueAction", db_source != null && db_source != playqueue, true);
            }
        }
    }
}
