using System;
using System.Collections;
using System.Collections.Generic ;
using System.Xml;
using System.Text;
using System.IO;

namespace SysBaseLibs
{
	/// <summary>
	/// rsXmlNode 创建 xml 数据格式
    /// songyf 200606 v1.0.0 
	/// </summary>
	public class rsXmlNode
	{
		public rsXmlNode(string pcName, string pcValue)
		{
			this._Name = "";
			this._Value = "";
			this._Depth = -1;
			this._Id = -1;
			this._Nodes = new List<rsXmlNode >();
			this._Name = pcName;
			this._Value = Utils.FormatXMLToCode(pcValue);
            this._Id = Utils.ValI(AppEnv.GetRandom());
		}


        // Fields
        private int _Depth;
        private int _Id;
        private string _Name;
        private List<rsXmlNode> _Nodes;
        private string _Value;

        private string _XmlDeclaration = "";
        /// <summary>
        /// xml 声明信息
        /// </summary>
        public string XmlDeclaration
        {
            get { return _XmlDeclaration; }
            set { _XmlDeclaration = value; }
        }
        private string _Comment = "";
        /// <summary>
        /// 该节点注释信息
        /// </summary>
        public string Comment
        {
            get { return _Comment; }
            set { _Comment = value; }
        }

        // Methods
        public void AddChild(rsXmlNode poNode)
		{
			this._Nodes.Add(poNode);
		}
		public override bool Equals(object obj)
		{
			return (this.GetHashCode() == obj.GetHashCode());
		}
		public rsXmlNode GetChildNode(string pcNodeName)
		{
			string text1 = "";
			return this.GetChildNode(pcNodeName, ref text1, false);
		}
		public rsXmlNode GetChildNode(string pcNodeName, ref string pcMessage, bool plMandatory)
		{
			rsXmlNode node1 = null;
			foreach (rsXmlNode node2 in this._Nodes)
			{
                if (UtilStr.UAndT(node2.Name) == UtilStr.UAndT(pcNodeName))
				{
					node1 = node2;
					break;
				}
			}
			if ((node1 == null) && plMandatory)
			{
				pcMessage = pcMessage + ((pcMessage == "") ? "" : "\r\n") +pcNodeName;// AppEnv.T(0x18767, pcNodeName);
			}
			return node1;
		}
		public string GetChildValue(string pcNodeName)
		{
			string text1 = "";
			rsXmlNode node1 = this.GetChildNode(pcNodeName);
			if (node1 != null)
			{
				text1 = node1.Value.Trim();
			}
			return text1;

		}

		public override int GetHashCode()
		{
			return this._Id.GetHashCode();
		}
		public override string ToString()
		{
			string text1 = this.Name;
			if (this.Value != "")
			{
				text1 = text1 + "=" + this.Value;
			}
			return text1;
		}

        //public string ToXmlStringNoTrans()
        //{
        //    if (this.Nodes.Count == 0)
        //    {
        //        string text2 = "<{0}>{1}</{0}>";
        //        return string.Format(text2, this.Name, this.Value);
        //    }
        //    string text3 = "<{0}>\r\n{1}\r\n</{0}>";
        //    string text4 = "";
        //    foreach (rsXmlNode node1 in this.Nodes)
        //    {
        //        text4 = text4 + ((text4 == "") ? "" : "\r\n") + node1.ToXmlStringNoTrans();
        //    }
        //    return string.Format(text3, this.Name, text4);

        //}

		public string ToXmlString()
		{
			if (this.Nodes.Count == 0)
			{
				string text2 = "<{0}>{1}</{0}>";
				return string.Format(text2, this.Name, FormatCodeToXML(this.Value));
			}
			string text3 = "<{0}>\r\n{1}\r\n</{0}>";
			string text4 = "";
			foreach (rsXmlNode node1 in this.Nodes)
			{
				text4 = text4 + ((text4 == "") ? "" : "\r\n") + node1.ToXmlString();
			}
			return string.Format(text3, this.Name, text4);

		}

		// Properties
		public int Depth 
		{
			get{return _Depth;}
			set{ _Depth=value;} 
		}
		public string Name 
		{ 
			get{return _Name;}
			set{_Name=value;} 
		}
		public List<rsXmlNode> Nodes 
		{ 
			get {return _Nodes;} 
		}
		public string Value 
		{ 
			get{return _Value;}
			set{_Value=value;} 
		}


        public static string FormatCodeToXML(string pcString)
        {
            return pcString.Replace("<", ";lt;").Replace(">", ";gt;").Replace("&", ";amp;");
        }

        public static string FormatXMLToCode(string pcString)
        {
            return pcString.Replace(";amp;", "&").Replace(";lt;", "<").Replace(";gt;", ">");
        }
        #region ICloneable 成员

        public object Clone()
        {
            rsXmlNode loRetVal = new rsXmlNode(this.Name, this.Value);

            foreach (rsXmlNode Node in this.Nodes)
            {
                loRetVal.AddChild((rsXmlNode)Node.Clone());
            }
            return loRetVal;
        }

        #endregion
        public static rsXmlNode ParseGenericXml(string pcGenericXml)
        {
            rsXmlNode node1 = null;
            StringReader reader1 = new StringReader(pcGenericXml);
            XmlTextReader reader2 = new XmlTextReader(reader1);
            Hashtable hashtable1 = new Hashtable();
            try
            {
                while (reader2.Read())
                {
                    if (reader2.NodeType == XmlNodeType.Element)
                    {
                        rsXmlNode node2 = new rsXmlNode(reader2.Name, "");
                        node2.Depth = reader2.Depth;
                        if (hashtable1[reader2.Depth] == null)
                        {
                            hashtable1.Add(reader2.Depth, node2);
                        }
                        else
                        {
                            hashtable1[reader2.Depth] = node2;
                        }
                        if (reader2.Depth > 0)
                        {
                            ((rsXmlNode)hashtable1[reader2.Depth - 1]).AddChild(node2);
                        }
                        else
                        {
                            node1 = node2;
                        }
                    }
                    if (reader2.NodeType == XmlNodeType.Text)
                    {
                        ((rsXmlNode)hashtable1[reader2.Depth - 1]).Value = FormatXMLToCode(reader2.Value);
                    }
                }
            }
            catch (Exception e)
            {
                throw new Exception(e.Message, e);
            }
            return node1;
        }
        /// <summary>
        /// 给节点重新赋值,如果没有发现该节点则创建该节点
        /// </summary>
        /// <param name="pcNodeName"></param>
        /// <param name="pcValue"></param>
        public void SetChildValue(string pcNodeName, string pcValue)
        {
            SetChildValue(pcNodeName, pcValue, true);
        }

        /// <summary>
        /// 给节点重新赋值
        /// </summary>
        /// <param name="pcNodeName">节点名称</param>
        /// <param name="pcValue">节点值</param>
        /// <param name="pbAddNewIfNull">当节点为null的时候，是否创建该节点</param>
        public void SetChildValue(string pcNodeName, string pcValue, bool pbAddNewIfNull)
        {
            rsXmlNode loNode = this.GetChildNode(pcNodeName);
            if (loNode == null)
            {
                if (pbAddNewIfNull)
                {
                    loNode = new rsXmlNode(pcNodeName, pcValue);
                    this.AddChild(loNode);
                }
            }
            else
            {
                loNode.Value = pcValue;
            }
        }
        /// <summary>
        /// 将该xmlNode 导成 xml字符串形式，包括xml声明和所有的注释信息
        /// </summary>
        /// <returns></returns>
        public string ToAllXmlString()
        {
            string lcRetVal = ToAllXmlString(0);
            if (_XmlDeclaration.Trim().Length > 0)
                lcRetVal = _XmlDeclaration + "\r\n" + lcRetVal;
            return lcRetVal;
        }

        private string ToAllXmlString(int piDepth)
        {
            string lcRetVal = "";
            if (this.Nodes.Count == 0)
            {
                string lcText = "{2}<{0}>{1}</{0}>";
                lcRetVal = string.Format(lcText, this.Name, Utils.FormatCodeToXML(this.Value), UtilStr.Replicate("  ", piDepth));
            }
            else
            {
                string text3 = "{2}<{0}>\r\n{1}\r\n{2}</{0}>";
                string text4 = "";
                foreach (rsXmlNode node1 in this.Nodes)
                {
                    text4 += ((text4 == "") ? "" : "\r\n") + node1.ToAllXmlString(piDepth + 1);
                }
                lcRetVal = string.Format(text3, this.Name, text4, UtilStr.Replicate("  ", piDepth));
            }
            if (_Comment.Trim().Length > 0)
            {
                lcRetVal = UtilStr.Replicate("  ", piDepth) + _Comment + "\r\n" + lcRetVal;
            }

            return lcRetVal;
        }
    }
}