using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel.Description;
using System.Xml;
using ProtoBuf.Meta;

namespace ProtoBuf.ServiceModel;

public sealed class ProtoOperationBehavior : DataContractSerializerOperationBehavior
{
	private TypeModel model;

	public TypeModel Model
	{
		get
		{
			return model;
		}
		set
		{
			model = value ?? throw new ArgumentNullException("value");
		}
	}

	public ProtoOperationBehavior(OperationDescription operation)
		: base(operation)
	{
		model = RuntimeTypeModel.Default;
	}

	public override XmlObjectSerializer CreateSerializer(Type type, XmlDictionaryString name, XmlDictionaryString ns, IList<Type> knownTypes)
	{
		if (model == null)
		{
			throw new InvalidOperationException("No Model instance has been assigned to the ProtoOperationBehavior");
		}
		return (XmlObjectSerializer)(((object)XmlProtoSerializer.TryCreate(model, type)) ?? ((object)((DataContractSerializerOperationBehavior)this).CreateSerializer(type, name, ns, knownTypes)));
	}
}