/* -LICENSE-START-
** Copyright (c) 2017 Blackmagic Design
**
** Permission is hereby granted, free of charge, to any person or organization
** obtaining a copy of the software and accompanying documentation covered by
** this license (the "Software") to use, reproduce, display, distribute,
** execute, and transmit the Software, and to prepare derivative works of the
** Software, and to permit third-parties to whom the Software is furnished to
** do so, all subject to the following:
** 
** The copyright notices in the Software and this entire statement, including
** the above license grant, this restriction and the following disclaimer,
** must be included in all copies of the Software, in whole or in part, and
** all derivative works of the Software, unless such copies or derivative
** works are solely in the form of machine-executable object code generated by
** a source language processor.
** 
** 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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
** DEALINGS IN THE SOFTWARE.
** -LICENSE-END-
*/

using System;
using DeckLinkAPI;

namespace SignalGenCSharp
{
    public delegate void DeckLinkDiscoveryHandler(IDeckLink decklinkDevice);
    public class DeckLinkDeviceDiscovery : IDeckLinkDeviceNotificationCallback
    {
        private IDeckLinkDiscovery m_deckLinkDiscovery;

        public event DeckLinkDiscoveryHandler DeviceArrived;
        public event DeckLinkDiscoveryHandler DeviceRemoved;

        public DeckLinkDeviceDiscovery()
        {
            m_deckLinkDiscovery = new CDeckLinkDiscovery();
        }
        ~DeckLinkDeviceDiscovery()
        {
            Disable();
        }

        public void Enable()
        {
            m_deckLinkDiscovery.InstallDeviceNotifications(this);
        }
        public void Disable()
        {
            m_deckLinkDiscovery.UninstallDeviceNotifications();
        }

        #region callbacks
        void IDeckLinkDeviceNotificationCallback.DeckLinkDeviceArrived(IDeckLink deckLinkDevice)
        {
            DeviceArrived(deckLinkDevice);
        }

        void IDeckLinkDeviceNotificationCallback.DeckLinkDeviceRemoved(IDeckLink deckLinkDevice)
        {
            DeviceRemoved(deckLinkDevice);
        }
        #endregion
    }
}