/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2021.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/

using Leap.Unity.Interaction;

namespace Leap.Unity.Interaction
{

    public interface IInternalInteractionManager
    {

        // Layers

        void NotifyIntObjAddedInteractionLayer(IInteractionBehaviour intObj, int layer, bool refreshImmediately = true);
        void NotifyIntObjRemovedInteractionLayer(IInteractionBehaviour intObj, int layer, bool refreshImmediately = true);

        void NotifyIntObjAddedNoContactLayer(IInteractionBehaviour intObj, int layer, bool refreshImmediately = true);
        void NotifyIntObjRemovedNoContactLayer(IInteractionBehaviour intObj, int layer, bool refreshImmediately = true);

        void RefreshLayersNow();

    }

    public static class IInternalInteractionManagerExtensions
    {

        public static void NotifyIntObjHasNewInteractionLayer(this IInternalInteractionManager manager,
                                                              IInteractionBehaviour intObj,
                                                              int oldInteractionLayer,
                                                              int newInteractionLayer)
        {
            manager.NotifyIntObjRemovedInteractionLayer(intObj, oldInteractionLayer, false);
            manager.NotifyIntObjAddedInteractionLayer(intObj, newInteractionLayer, false);
            manager.RefreshLayersNow();
        }

        public static void NotifyIntObjHasNewNoContactLayer(this IInternalInteractionManager manager,
                                                            IInteractionBehaviour intObj,
                                                            int oldNoContactLayer,
                                                            int newNoContactLayer)
        {
            manager.NotifyIntObjRemovedNoContactLayer(intObj, oldNoContactLayer, false);
            manager.NotifyIntObjAddedNoContactLayer(intObj, newNoContactLayer, false);
            manager.RefreshLayersNow();
        }

    }

}