//
// Author: Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2010 Novell, Inc (http://www.novell.com)
//
// 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 System.ComponentModel;
using System.Configuration;
using System.Linq;
using System.ServiceModel.Configuration;
using System.ServiceModel.Description;
using System.ServiceModel.Discovery.Udp;

namespace System.ServiceModel.Discovery.Configuration
{
	public class UdpDiscoveryEndpointElement : DiscoveryEndpointElement
	{
		static ConfigurationPropertyCollection properties;
		static ConfigurationProperty discovery_mode, max_response_delay, multicast_address, transport_settings;
		
		static UdpDiscoveryEndpointElement ()
		{
			discovery_mode = new ConfigurationProperty ("discoveryMode", typeof (ServiceDiscoveryMode), ServiceDiscoveryMode.Adhoc, null, null, ConfigurationPropertyOptions.None);
			max_response_delay = new ConfigurationProperty ("maxResponseDelay", typeof (TimeSpan), "00:00:00.500", new TimeSpanConverter (), null, ConfigurationPropertyOptions.None);
			multicast_address = new ConfigurationProperty ("multicastAddress", typeof (Uri), "soap.udp://239.255.255.250:3702", new UriTypeConverter (), null, ConfigurationPropertyOptions.None);
			transport_settings = new ConfigurationProperty ("transportSettings", typeof (UdpTransportSettingsElement), null, null, null, ConfigurationPropertyOptions.None);
			properties = new ConfigurationPropertyCollection ();
			properties.Add (discovery_mode);
			properties.Add (max_response_delay);
			properties.Add (multicast_address);
			properties.Add (transport_settings);
		}

		public UdpDiscoveryEndpointElement ()
		{
		}

		[ConfigurationProperty ("discoveryMode", DefaultValue = ServiceDiscoveryMode.Adhoc)]
		public new ServiceDiscoveryMode DiscoveryMode {
			get { return (ServiceDiscoveryMode) base [discovery_mode]; }
			set { base [discovery_mode] = value; }
		}

		protected internal override Type EndpointType {
			get { return typeof (UdpDiscoveryEndpoint); }
		}

		[TypeConverter (typeof (TimeSpanConverter))]
		[ConfigurationProperty ("maxResponseDelay", DefaultValue = "00:00:00.500")]
		public new TimeSpan MaxResponseDelay {
			get { return (TimeSpan) base [max_response_delay]; }
			set { base [max_response_delay] = value; }
		}

		[ConfigurationProperty ("multicastAddress", DefaultValue = "soap.udp://239.255.255.250:3702")]
		public Uri MulticastAddress {
			get { return (Uri) base [multicast_address]; }
			set { base [multicast_address] = value; }
		}

		[ConfigurationProperty ("transportSettings")]
		public UdpTransportSettingsElement TransportSettings {
			get { return (UdpTransportSettingsElement) base [transport_settings]; }
		}
		
		protected override ConfigurationPropertyCollection Properties {
			get { return properties; }
		}
		
		protected internal override ServiceEndpoint CreateServiceEndpoint (ContractDescription contractDescription)
		{
			if (contractDescription == null)
				throw new ArgumentNullException ("contractDescription");
			DiscoveryVersion ver = null;
			switch (contractDescription.ContractType.Namespace) {
			case DiscoveryVersion.Namespace11:
				ver = DiscoveryVersion.WSDiscovery11;
				break;
			case DiscoveryVersion.NamespaceApril2005:
				ver = DiscoveryVersion.WSDiscoveryApril2005;
				break;
			case DiscoveryVersion.NamespaceCD1:
				ver = DiscoveryVersion.WSDiscoveryCD1;
				break;
			}
			var ret = new UdpDiscoveryEndpoint (ver, MulticastAddress);
			ret.MaxResponseDelay = MaxResponseDelay;
			TransportSettings.ApplyConfiguration (ret.TransportSettings);
			return ret;
		}

		protected internal override void InitializeFrom (ServiceEndpoint endpoint)
		{
			if (endpoint == null)
				throw new ArgumentNullException ("endpoint");
			var e = (UdpDiscoveryEndpoint) endpoint;
			MaxResponseDelay = e.MaxResponseDelay;
			MulticastAddress = e.MulticastAddress;
			TransportSettings.InitializeFrom (e.TransportSettings);
		}

		protected override void OnApplyConfiguration (ServiceEndpoint endpoint, ChannelEndpointElement serviceEndpointElement)
		{
			if (endpoint == null)
				throw new ArgumentNullException ("endpoint");
			var de = (DiscoveryEndpoint) endpoint;
			if (!de.DiscoveryVersion.Equals (DiscoveryVersion))
				throw new ArgumentException ("Argument AnnouncementEndpoint is initialized with different DiscoveryVersion");
			de.MaxResponseDelay = MaxResponseDelay;
			de.Address = serviceEndpointElement.CreateEndpointAddress (); // it depends on InternalVisibleTo(System.ServiceModel)
			var be = (UdpTransportBindingElement) de.Binding.CreateBindingElements ().First (b => b is UdpTransportBindingElement);
			TransportSettings.ApplyConfiguration (be.TransportSettings);
		}

		protected override void OnApplyConfiguration (ServiceEndpoint endpoint, ServiceEndpointElement serviceEndpointElement)
		{
			if (endpoint == null)
				throw new ArgumentNullException ("endpoint");
			var de = (DiscoveryEndpoint) endpoint;
			if (!de.DiscoveryVersion.Equals (DiscoveryVersion))
				throw new ArgumentException ("Argument AnnouncementEndpoint is initialized with different DiscoveryVersion");
			de.MaxResponseDelay = MaxResponseDelay;
			de.Address = serviceEndpointElement.CreateEndpointAddress (); // it depends on InternalVisibleTo(System.ServiceModel)
			var be = (UdpTransportBindingElement) de.Binding.CreateBindingElements ().First (b => b is UdpTransportBindingElement);
			TransportSettings.ApplyConfiguration (be.TransportSettings);
		}

		protected override void OnInitializeAndValidate (ChannelEndpointElement channelEndpointElement)
		{
			// It seems to do nothing.
			base.OnInitializeAndValidate (channelEndpointElement);
		}

		protected override void OnInitializeAndValidate (ServiceEndpointElement channelEndpointElement)
		{
			// It seems to do nothing.
			base.OnInitializeAndValidate (channelEndpointElement);
		}
	}
}