// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System.ServiceModel.Description;
 
namespace System.ServiceModel
{
    public class FaultCode
    {
        private FaultCode _subCode;
        private string _name;
        private string _ns;
        private EnvelopeVersion _version;
 
        public FaultCode(string name)
            : this(name, "", null)
        {
        }
 
        public FaultCode(string name, FaultCode subCode)
            : this(name, "", subCode)
        {
        }
 
        public FaultCode(string name, string ns)
            : this(name, ns, null)
        {
        }
 
        public FaultCode(string name, string ns, FaultCode subCode)
        {
            if (name == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("name"));
            if (name.Length == 0)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("name"));
 
            if (!string.IsNullOrEmpty(ns))
                NamingHelper.CheckUriParameter(ns, "ns");
 
            _name = name;
            _ns = ns;
            _subCode = subCode;
 
            if (ns == Message12Strings.Namespace)
                _version = EnvelopeVersion.Soap12;
            else if (ns == Message11Strings.Namespace)
                _version = EnvelopeVersion.Soap11;
            else if (ns == MessageStrings.Namespace)
                _version = EnvelopeVersion.None;
            else
                _version = null;
        }
 
        public bool IsPredefinedFault
        {
            get
            {
                return _ns.Length == 0 || _version != null;
            }
        }
 
        public bool IsSenderFault
        {
            get
            {
                if (IsPredefinedFault)
                    return _name == (_version ?? EnvelopeVersion.Soap12).SenderFaultName;
 
                return false;
            }
        }
 
        public bool IsReceiverFault
        {
            get
            {
                if (IsPredefinedFault)
                    return _name == (_version ?? EnvelopeVersion.Soap12).ReceiverFaultName;
 
                return false;
            }
        }
 
        public string Namespace
        {
            get
            {
                return _ns;
            }
        }
 
        public string Name
        {
            get
            {
                return _name;
            }
        }
 
        public FaultCode SubCode
        {
            get
            {
                return _subCode;
            }
        }
 
        public static FaultCode CreateSenderFaultCode(FaultCode subCode)
        {
            return new FaultCode("Sender", subCode);
        }
 
        public static FaultCode CreateSenderFaultCode(string name, string ns)
        {
            return CreateSenderFaultCode(new FaultCode(name, ns));
        }
 
        public static FaultCode CreateReceiverFaultCode(FaultCode subCode)
        {
            if (subCode == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("subCode"));
            return new FaultCode("Receiver", subCode);
        }
 
        public static FaultCode CreateReceiverFaultCode(string name, string ns)
        {
            return CreateReceiverFaultCode(new FaultCode(name, ns));
        }
    }
}