//
// XmlAttributes.cs: 
//
// Author:
//   John Donagher (john@webmeta.com)
//
// (C) 2002 John Donagher
//

//
// 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.Reflection;
using System;
using System.ComponentModel;
using System.Collections;

namespace System.Xml.Serialization
{
	/// <summary>
	/// Summary description for XmlAttributes.
	/// </summary>
	public class XmlAttributes
	{
		private XmlAnyAttributeAttribute xmlAnyAttribute;
		private XmlAnyElementAttributes xmlAnyElements = new XmlAnyElementAttributes();
		private XmlArrayAttribute xmlArray;
		private XmlArrayItemAttributes xmlArrayItems = new XmlArrayItemAttributes();
		private XmlAttributeAttribute xmlAttribute;
		private XmlChoiceIdentifierAttribute xmlChoiceIdentifier;
		private object xmlDefaultValue = System.DBNull.Value;
		private XmlElementAttributes xmlElements = new XmlElementAttributes();
		private XmlEnumAttribute xmlEnum;
		private bool xmlIgnore;
		private bool xmlns;
		private XmlRootAttribute xmlRoot;
		private XmlTextAttribute xmlText;
		private XmlTypeAttribute xmlType;

		public XmlAttributes ()
		{
		}

		public XmlAttributes (ICustomAttributeProvider provider)
		{
			object[] attributes = provider.GetCustomAttributes(false);
			foreach(object obj in attributes)
			{
				if(obj is XmlAnyAttributeAttribute)
					xmlAnyAttribute = (XmlAnyAttributeAttribute) obj;
				else
				if(obj is XmlAnyElementAttribute)
					xmlAnyElements.Add((XmlAnyElementAttribute) obj);
				else if(obj is XmlArrayAttribute)
					xmlArray = (XmlArrayAttribute) obj;
				else if(obj is XmlArrayItemAttribute)
					xmlArrayItems.Add((XmlArrayItemAttribute) obj);
				else if(obj is XmlAttributeAttribute)
					xmlAttribute = (XmlAttributeAttribute) obj;
				else if(obj is XmlChoiceIdentifierAttribute)
					xmlChoiceIdentifier = (XmlChoiceIdentifierAttribute) obj;
				else if(obj is DefaultValueAttribute)
					xmlDefaultValue = ((DefaultValueAttribute)obj).Value;
				else if(obj is XmlElementAttribute )
					xmlElements.Add((XmlElementAttribute ) obj);
				else if(obj is XmlEnumAttribute)
					xmlEnum = (XmlEnumAttribute) obj;
				else if(obj is XmlIgnoreAttribute)
					xmlIgnore = true;
				else if(obj is XmlNamespaceDeclarationsAttribute)
					xmlns = true;
				else if(obj is XmlRootAttribute)
					xmlRoot = (XmlRootAttribute) obj;
				else if(obj is XmlTextAttribute)
					xmlText = (XmlTextAttribute) obj;
				else if(obj is XmlTypeAttribute)
					xmlType = (XmlTypeAttribute) obj;
			}
			
			if (xmlIgnore) {
				xmlAnyAttribute = null;
				xmlAnyElements.Clear ();
				xmlArray = null;
				xmlArrayItems.Clear ();
				xmlAttribute = null;
				xmlChoiceIdentifier = null;
				xmlDefaultValue = null;
				xmlElements.Clear ();
				xmlEnum = null;
				xmlns = false;
				xmlRoot = null;
				xmlText = null;
				xmlType = null;
			}
		}

		#region public properties
		public XmlAnyAttributeAttribute XmlAnyAttribute 
		{
			get 
			{
				return xmlAnyAttribute;
			}
			set 
			{
				xmlAnyAttribute = value;
			}
		}

		public XmlAnyElementAttributes XmlAnyElements 
		{
			get 
			{
				return xmlAnyElements;
			}
		}
		public XmlArrayAttribute XmlArray
		{
			get 
			{
				return xmlArray;
			}
			set 
			{
				xmlArray = value;
			}
		}
		public XmlArrayItemAttributes XmlArrayItems 
		{
			get 
			{
				return xmlArrayItems;
			}
		}
		public XmlAttributeAttribute XmlAttribute 
		{
			get 
			{
				return xmlAttribute;
			}
			set 
			{
				xmlAttribute = value;
			}
		}
		public XmlChoiceIdentifierAttribute XmlChoiceIdentifier 
		{
			get 
			{
				return xmlChoiceIdentifier;
			}
		}
		public object XmlDefaultValue 
		{
			get 
			{
				return xmlDefaultValue;
			}
			set 
			{
				xmlDefaultValue = value;
			}
		}
		public XmlElementAttributes XmlElements 
		{
			get 
			{
				return xmlElements;
			}
		}
		public XmlEnumAttribute XmlEnum 
		{
			get 
			{
				return xmlEnum;
			}
			set 
			{
				xmlEnum = value;
			}
		}
		public bool XmlIgnore 
		{
			get 
			{
				return xmlIgnore;
			}
			set 
			{
				xmlIgnore = value;
			}
		}
		public bool Xmlns 
		{
			get 
			{
				return xmlns;
			}
			set 
			{
				xmlns = value;
			}
		}
		public XmlRootAttribute XmlRoot 
		{
			get 
			{
				return xmlRoot;}
			set 
			{
				xmlRoot = value;
			}
		}
		public XmlTextAttribute XmlText 
		{
			get 
			{
				return xmlText;
			}
			set 
			{
				xmlText = value;
			}
		}
		public XmlTypeAttribute XmlType 
		{
			get 
			{
				return xmlType;
			}
			set 
			{
				xmlType = value;
			}
		}
		#endregion
		
		internal void AddKeyHash (System.Text.StringBuilder sb)
		{
			sb.Append ("XA ");
			
			KeyHelper.AddField (sb, 1, xmlIgnore);
			KeyHelper.AddField (sb, 2, xmlns);
			KeyHelper.AddField (sb, 3, xmlAnyAttribute!=null);

			xmlAnyElements.AddKeyHash (sb);
			xmlArrayItems.AddKeyHash (sb);
			xmlElements.AddKeyHash (sb);
			
			if (xmlArray != null)
				xmlArray.AddKeyHash (sb);
				
			if (xmlAttribute != null)
				xmlAttribute.AddKeyHash (sb);
				
			if (xmlDefaultValue == null) {
				sb.Append ("n");
			}
			else if (!(xmlDefaultValue is System.DBNull)) {
				string v = XmlCustomFormatter.ToXmlString (TypeTranslator.GetTypeData (xmlDefaultValue.GetType()), xmlDefaultValue);
				sb.Append ("v" + v);
			}
			
			if (xmlEnum != null)
				xmlEnum.AddKeyHash (sb);
				
			if (xmlRoot != null)
				xmlRoot.AddKeyHash (sb);
				
			if (xmlText != null)
				xmlText.AddKeyHash (sb);
				
			if (xmlType != null)
				xmlType.AddKeyHash (sb);
				
			if (xmlChoiceIdentifier != null)
				xmlChoiceIdentifier.AddKeyHash (sb);
				
			sb.Append ("|");
		}

		internal int? Order {
			get {
				int? order = null;
				if (XmlElements.Count > 0)
					order = XmlElements.Order;
				else if (XmlArray != null)
					order = XmlArray.Order;
				else if (XmlAnyElements.Count > 0)
					order = XmlAnyElements.Order;
				return order;
			}
		}
		
		internal int SortableOrder {
			get { return Order != null ? (int) Order : int.MinValue; }
		}
	}
}