using System;
using System.Collections.Generic;
using System.Text;
using Volian.Controls.Library;
using VEPROMS.CSLA.Library;
using System.Text.RegularExpressions;
using Volian.Base.Library;
using System.Xml;
using System.IO;

namespace DataLoader
{
	public delegate void TransitionFixerEvent(object sender, TransitionFixerEventArgs args);
	public class TransitionFixerEventArgs
	{
		private string _MyStatus;

		public string MyStatus
		{
			get { return _MyStatus; }
			set { _MyStatus = value; }
		}
		public TransitionFixerEventArgs(string myStatus)
		{
			_MyStatus = myStatus;
		}
	}
	class TransitionFixer
	{
		public event TransitionFixerEvent StatusChanged;
		private void OnStatusChanged(object sender, TransitionFixerEventArgs args)
		{
			if (StatusChanged != null)
				StatusChanged(sender, args);
		}
		private string _Status;

		public string Status
		{
			get { return _Status; }
			set
			{
				_Status = value;
				OnStatusChanged(this, new TransitionFixerEventArgs(_Status));
			}
		}
		private int _ErrorCount = 0;

		public int ErrorCount
		{
			get { return _ErrorCount; }
			set { _ErrorCount = value; }
		}

		private StepRTB _MyStepRTB;

		public StepRTB MyStepRTB
		{
			get { return _MyStepRTB; }
		}
		private string _LogPath;
		public TransitionFixer(StepRTB myStepRTB,string logpath)
		{
			_MyStepRTB = myStepRTB;
			_LogPath = logpath;
		}
		public TimeSpan Process(bool checkRTF)
		{
			DateTime tstart = DateTime.Now;
			ProcessTransitions(checkRTF);
			return DateTime.Now - tstart;
		}
		private void ProcessTransitions(bool checkRTF)
		{
			Status = "Getting List...";
			// Loop through all Items and check before and after text
			ItemInfoList myListFrom = ItemInfoList.GetListTranFrom();
			ItemInfoList myListTo = ItemInfoList.GetListTranTo();
			ConversionRTBProblems myProblems = new ConversionRTBProblems();
			int i = 0;
			foreach (ItemInfo item in myListFrom)
			{
				if (item.MyContent.ContentID == 311)
					Console.WriteLine();
				Status = string.Format("Processing {0} of {1} steps", ++i, myListFrom.Count);
				//MyStepRTB.ViewRTB = false;
				string originalText = item.MyContent.Text;
				string updatedText = item.MyContent.Text;
				if (item.MyContent.MyGrid != null)
				{
					originalText = item.MyContent.MyGrid.Data;
					updatedText = (item.MyContent.MyGrid.Data.Replace("&lt;START]", "<START]")).Replace("[END&gt;", "[END>");
				}
				// Exclude items that are not connected (Dummy steps for invalid transition destinations)
				if (item.ItemDocVersionCount != 0 || item.MyPrevious != null || item.MyParent != null)
				{
					if (item.MyContent.ContentTransitionCount > 0)
					{
						//updatedText = Volian.Controls.Library.DisplayText.StaticRemoveRtfStyles(updatedText, item);
						foreach (TransitionInfo tran in item.MyContent.ContentTransitions)
						{
							try
							{
								if (item.MyContent.MyGrid != null)
									updatedText = FixTableTransitionText(updatedText, tran, item.MyContent.Get());
								else
									updatedText = FixTransitionText(updatedText, tran);
							}
							catch (Exception ex)
							{
								Console.WriteLine("{0} {1}", ex.GetType().Name, ex.Message);
							}
							// Added for transitions to un-numbered steps
							if (tran.NewTransToUnNumberedItem) item.NewTransToUnNumberedItem = true;
						}
					}
					if (updatedText.EndsWith(" ")) updatedText = updatedText.Substring(0, updatedText.Length - 1);
					if (item.MyContent.MyGrid != null)
					{
						using (Item itm = item.Get())
						{
							updatedText = (updatedText.Replace("<START]", "&lt;START]")).Replace("[END>", "[END&gt;");
							string sstring = AdjustSizeAndGetSearchString(updatedText, itm);
							itm.MyContent.Text = sstring;
							if (item.NewTransToUnNumberedItem)
							{
								ItemAnnotation ia = itm.ItemAnnotations.Add(VerificationRequiredType);
								ia.SearchText = "Transition to un-numbered step";
								ia.UserID = "Migration";
							}
							itm.Save();
						}
					}
					else
					{
						if (item.NewTransToUnNumberedItem)
						{
							using (Item itm = item.Get())
							{
								ItemAnnotation ia = itm.ItemAnnotations.Add(VerificationRequiredType);
								ia.SearchText = "Transition to un-numbered step";
								ia.UserID = "Migration";
								itm.Save();
							}
						}
						using (Content c = item.MyContent.Get())
						{
							c.Text = updatedText;
							c.Save();
						}
					}
					// Added for transitions to un-numbered steps
				if (checkRTF)
					{
						MyStepRTB.MyItemInfo = item;
						// Force Save - This will put change bars on everything
						if (MyStepRTB.Text.Contains("(Resolved Transition Text)") != false) MyStepRTB.OrigDisplayText.Save(MyStepRTB);
						string afterText = item.MyContent.Text;
						// aftertext is 'newrtf'
						if (afterText != updatedText)
							myProblems.RTBProblems.Add(item.ItemID, item.MyContent.ContentID, originalText, updatedText, MyStepRTB.Rtf, afterText, item.Path);
					}
				}
			}
			if (checkRTF)
			{
				Status = "Saving problems";
				string logFile = _LogPath + @"\RTBProblems.xml";
				ErrorCount = myProblems.RTBProblems.Count;
				myProblems.Save(logFile);
				if (ErrorCount > 0)
				{
					System.Windows.Forms.DialogResult answer = System.Windows.Forms.MessageBox.Show(
						string.Format("{0} Differences found in Transition Text\r\nResults in {1}\r\n\r\nOpen Log File?",
						ErrorCount, logFile), "Transitions Different", System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question);
					if(answer == System.Windows.Forms.DialogResult.Yes)
						System.Diagnostics.Process.Start(logFile);
				}
			}
			Status = "Done comparing";
		}
		// Added for transitions to un-numbered steps
		private AnnotationType _VerificationRequiredType; // Using this to flag table to grid conversions
		public AnnotationType VerificationRequiredType
		{
			get 
			{ 
				if (_VerificationRequiredType == null)
					_VerificationRequiredType = AnnotationType.GetByName("Verification Required");
				return _VerificationRequiredType; 
			}
		}
		public string FixTransitionText(string Text, TransitionInfo tran)
		{
			if (tran.MyItemToID.ToString().Contains("diamond"))
				Console.WriteLine();
			string lookFor = string.Format(@"<START\]\\v0 ([^#]*?)\\v #Link:Transition[^:]*?:{0} {1}( [0-9]*){2}\[END>", tran.TranType, tran.TransitionID, "{1,2}");
			string transText = tran.ResolvePathTo();
			//Console.WriteLine(">>>>> FixTransitionText");
			//Console.WriteLine("Text = {0}", Text);
			//Console.WriteLine("lookFor = {0}", lookFor);
			//Console.WriteLine("TransText = {0}", transText);
			Match m = Regex.Match(Text, lookFor);
			if (m != null && m.Groups.Count > 1)
			{
				System.Text.RegularExpressions.Group g = m.Groups[1];
				if (g.ToString() != transText)
					Text = Text.Substring(0, g.Index) + transText + Text.Substring(g.Index + g.Length);
			}
			else
				Console.WriteLine("Transition not Found");
			return Text;
		}
		public string FixTableTransitionText(string Text, TransitionInfo tran, Content content)
		{
			string lookFor = string.Format(@"<START\]\\cf1\\v0 ([^#]*?)\\cf0\\v #Link:Transition[^:]*?:{0} {1}( [0-9]*){2}\[END>", tran.TranType, tran.TransitionID, "{1,2}");
			string transText = tran.ResolvePathTo();
			//Console.WriteLine(">>>>> FixTransitionText");
			//Console.WriteLine("Text = {0}", Text);
			//Console.WriteLine("lookFor = {0}", lookFor);
			//Console.WriteLine("TransText = {0}", transText);
			Match m = Regex.Match(Text, lookFor);
			if (m != null && m.Groups.Count > 1)
			{
				System.Text.RegularExpressions.Group g = m.Groups[1];
				if (g.ToString() != transText)
					Text = Text.Substring(0, g.Index) + transText + Text.Substring(g.Index + g.Length);
			}
			else
				Console.WriteLine("Transition not Found");

			//VlnFlexGrid grd = new VlnFlexGrid(1, 1);
			//XmlDocument xd = new XmlDocument();
			//xd.LoadXml(Text);
			//grd.ReadXml(xd);
			//grd.FixTableCellsHeightWidth(); // resize the column width/height
			//using (StringWriter sw = new StringWriter())
			//{
			//    grd.WriteXml(sw);
			//    //Console.WriteLine(sw.GetStringBuilder().ToString());
			//    content.MyGrid.Data = sw.GetStringBuilder().ToString();
			//    sw.Close();
			//}
			return Text;
		}
		private string AdjustSizeAndGetSearchString(string strXML, Item itm)
		{
			string rstring = "";
			VlnFlexGrid grd = new VlnFlexGrid(1, 1);
			XmlDocument xd = new XmlDocument();
			xd.LoadXml(strXML);
			grd.ReadXml(xd);
			//using (StringReader sr = new StringReader(strXML))
			//{
			//    grd.ReadXml(sr);
			//    sr.Close();
			//}
			grd.FixTableCellsHeightWidth(); // resize the column width/height
			rstring = grd.GetSearchableText();
			using (StringWriter sw = new StringWriter())
			{
				grd.WriteXml(sw);
				itm.MyContent.MyGrid.Data = sw.GetStringBuilder().ToString();
				sw.Close();
			}
			return rstring;
		}
	}
}