using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
namespace VEPROMS.CSLA.Library
{
	public partial class LinkText
	{
		public LinkText(string linkInfoText)
		{
			_LinkInfoText = linkInfoText;
		}
		public void ParseLink()
		{
			if (_MyParsedLinkType == ParsedLinkType.NotParsed)
			{
				if (_LinkInfoText == null) return;
				// First parse the string
				_LinkInfoText = _LinkInfoText.Replace(@"\v ", "");
				// for tran : "2, #, #, # and 4#Link:TransitionRange:2 10 173 166"
				Match m = Regex.Match(_LinkInfoText, @"(.*)[#]Link:([A-Za-z]*):(.*)");
				_MyValue = m.Groups[1].Value;
				_MyLink = "#Link:" + m.Groups[2].Value + ":" + m.Groups[3].Value;
				switch (m.Groups[2].Value)
				{
					case "ReferencedObject":
						_MyParsedLinkType = ParsedLinkType.ReferencedObject;
						string[] subs = m.Groups[3].Value.Split(" ".ToCharArray());
						if (subs[0] == "<NewID>")
							_MyRoUsageInfo = null;
						else
						{
							int roUsageid = Convert.ToInt32(subs[0]);
							_MyRoUsageInfo = RoUsageInfo.Get(roUsageid);
						}
						break;
					case "Transition":
					case "TransitionRange":
						_MyParsedLinkType = (ParsedLinkType)Enum.Parse(_MyParsedLinkType.GetType(), m.Groups[2].Value);
						if (m.Groups[3].Value.Split(" ".ToCharArray())[1] == "<NewID>")
							_MyTransitionInfo = null;
						else
						{
							int transitionID = Convert.ToInt32(m.Groups[3].Value.Split(" ".ToCharArray())[1]);
							_MyTransitionInfo = TransitionInfo.Get(transitionID);
						}
						break;
				}
			}
		}
		private string _LinkInfoText;
		public string LinkInfoText
		{
			get { return _LinkInfoText; }
		}
		private TransitionInfo _MyTransitionInfo = null;
		public TransitionInfo MyTransitionInfo
		{
			get { ParseLink(); return _MyTransitionInfo; }
		}
		public ItemInfo MyTranToItemInfo
		{
			get { ParseLink(); return _MyTransitionInfo.MyItemToID; }
		}
		public ItemInfo MyTranRangeItemInfo
		{
			get { ParseLink(); return _MyTransitionInfo.MyItemRangeID; }
		}
		private string _MyValue = null;
		public string MyValue
		{
			get { ParseLink(); return _MyValue; }
		}
		private string _MyLink = null;
		public string MyLink
		{
			get { ParseLink(); return _MyLink; }
		}
		private RoUsageInfo _MyRoUsageInfo;
		public RoUsageInfo MyRoUsageInfo
		{
			get { ParseLink(); return _MyRoUsageInfo; }
		}
		//private string _Roid = null; // TODO: need to return Referenced Object rather than just roid
		//public string Roid
		//{
		//    get { ParseLink(); return _Roid; }
		//}
		//private string _RoUsageid = null; // TODO: need to return Referenced Object rather than just roid
		//public string RoUsageid
		//{
		//    get { ParseLink(); return _RoUsageid; }
		//}
		//private string _RoDbid = null; // TODO: need to return Referenced Object rather than just roid
		//public string RoDbid
		//{
		//    get { ParseLink(); return _RoDbid; }
		//}
		private ParsedLinkType _MyParsedLinkType = ParsedLinkType.NotParsed;
		public ParsedLinkType MyParsedLinkType
		{
			get { ParseLink(); return _MyParsedLinkType; }
		}

	}
	#region enums
	public enum ParsedLinkType : int
	{
		NotParsed = 0,
		Transition = 1,
		TransitionRange = 2,
		ReferencedObject = 3
	}
	#endregion
}