using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using MediaBrowser.Model.Net;

namespace Rssdp
{
    /// <summary>
    /// Event arguments for the <see cref="Infrastructure.SsdpDeviceLocatorBase.DeviceAvailable"/> event.
    /// </summary>
    public sealed class DeviceAvailableEventArgs : EventArgs
    {
        public IpAddressInfo LocalIpAddress { get; set; }

        #region Fields

        private readonly DiscoveredSsdpDevice _DiscoveredDevice;
		private readonly bool _IsNewlyDiscovered;

        #endregion

        #region Constructors

        /// <summary>
        /// Full constructor.
        /// </summary>
        /// <param name="discoveredDevice">A <see cref="DiscoveredSsdpDevice"/> instance representing the available device.</param>
        /// <param name="isNewlyDiscovered">A boolean value indicating whether or not this device came from the cache. See <see cref="IsNewlyDiscovered"/> for more detail.</param>
        /// <exception cref="ArgumentNullException">Thrown if the <paramref name="discoveredDevice"/> parameter is null.</exception>
        public DeviceAvailableEventArgs(DiscoveredSsdpDevice discoveredDevice, bool isNewlyDiscovered)
		{
			if (discoveredDevice == null) throw new ArgumentNullException(nameof(discoveredDevice));

			_DiscoveredDevice = discoveredDevice;
			_IsNewlyDiscovered = isNewlyDiscovered;
		}

		#endregion

		#region Public Properties

		/// <summary>
		/// Returns true if the device was discovered due to an alive notification, or a search and was not already in the cache. Returns false if the item came from the cache but matched the current search request.
		/// </summary>
		public bool IsNewlyDiscovered
		{
			get { return _IsNewlyDiscovered; }
		}

        /// <summary>
        /// A reference to a <see cref="DiscoveredSsdpDevice"/> instance containing the discovered details and allowing access to the full device description.
        /// </summary>
        public DiscoveredSsdpDevice DiscoveredDevice
		{
			get { return _DiscoveredDevice; }
		} 

		#endregion
		
	}
}