using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Linq;
using System.Xml.Xsl;
using System.IO;
using VEPROMS.CSLA.Library;

namespace Volian.Controls.Library
{
	// This dialog is used when the imported UCF is different than one existing in the database.  It allows the user to 
	// select whether to overwrite, copy, etc.  See the user interface project/dlgExportImport.cs for the options.
	public partial class dlgUCFImportOptions : Form
	{
		List<string>ExistingFC;
		List<string>ImportedFC;
		private bool _Initializing = false;
		public E_UCFImportOptions UCFImportOptionsCase = E_UCFImportOptions.LoadOnlyImported;
		public dlgUCFImportOptions(List<string> name, List<string> existingFC, List<string> importedFC, E_UCFImportOptions defImpOpt, string xmlpath)
		{
			_Initializing = true;
			InitializeComponent();
			InitializeFNamesCombo(name);
			ExistingFC = existingFC;
			ImportedFC = importedFC;
			cmbFNames.SelectedIndex = 0;		// this displays the web browser differences for first name in the combo box.

			// initialize the import of UCF option radio buttons:
			UCFImportOptionsCase = defImpOpt;
			rbSetOnly.Visible = !xmlpath.ToLower().Contains("folder");
			if (defImpOpt == E_UCFImportOptions.Ignore)
			{
				sBtnLoad.Value = false;
				grPnlLoad.Enabled = false;
				grPnlUse.Enabled = false;
			}
			else if (defImpOpt == E_UCFImportOptions.LoadNotUsed)
			{
				sBtnLoad.Value = true;
				grPnlLoad.Enabled = true;
				cbUse.Checked = false;
				grPnlUse.Enabled = false;
			}
			else if (defImpOpt == E_UCFImportOptions.LoadOnlyImported)
			{
				sBtnLoad.Value = true;
				grPnlLoad.Enabled = true;
				cbUse.Checked = true;
				grPnlUse.Enabled = true;
				rbOnlyImported.Checked = true;
			}
			else if (defImpOpt == E_UCFImportOptions.LoadUseAll)
			{
				sBtnLoad.Value = true;
				grPnlLoad.Enabled = true;
				cbUse.Checked = true;
				grPnlUse.Enabled = true;
				rbAll.Checked = true;
			}
			else if (defImpOpt == E_UCFImportOptions.LoadForSetOnly)
			{
				sBtnLoad.Value = true;
				grPnlLoad.Enabled = true;
				cbUse.Checked = true;
				grPnlUse.Enabled = true;
				rbSetOnly.Checked = true;
			}
			_Initializing = false;
			return;
		}

		private void InitializeFNamesCombo(List<string> name)
		{
			foreach (string str in name)
				cmbFNames.Items.Add(str);
		}

		private void DisplayXmlDiff(string existingFC, string importedFC)
		{
			XmlDocument xd = new XmlDocument();
			xd.LoadXml(existingFC);
			XmlNodeList xnl = xd.GetElementsByTagName("FormatConfig");
			if (xnl != null && xnl.Count > 0) AddAttribute(xnl[0], "Version", "Existing");
			string sXSLSummary = System.IO.File.ReadAllText(Application.StartupPath + "\\" + "UCFImpDetails.xsl");
			StringWriter sw = new StringWriter();
			StringWriter xsw = new StringWriter();
			using (XmlReader xrt = XmlReader.Create(new StringReader(sXSLSummary)))
			{
				XmlTextWriter tx = new XmlTextWriter(xsw);
				xd.WriteTo(tx);
				string tmp = sw.ToString();
				tmp = xd.InnerXml;
				using (XmlReader xri = XmlReader.Create(new StringReader(tmp)))
				{
					using (XmlWriter xwo = XmlWriter.Create(sw))
					{
						XslCompiledTransform xsl = new XslCompiledTransform();
						xsl.Load(xrt);
						xsl.Transform(xri, xwo); // Perform Transform
					}
					wbBrwsExisting.DocumentText = sw.ToString();
				}
			}
			StringWriter sw1 = new StringWriter();
			StringWriter xsw1 = new StringWriter();
			XmlDocument xd1 = new XmlDocument();
			xd1.LoadXml(importedFC);
			xnl = xd1.GetElementsByTagName("FormatConfig");
			if (xnl != null && xnl.Count > 0) AddAttribute(xnl[0], "Version", "Importing");
			using (XmlReader xrt = XmlReader.Create(new StringReader(sXSLSummary)))
			{
				XmlTextWriter tx = new XmlTextWriter(xsw1);
				xd1.WriteTo(tx);
				string tmp = xd1.InnerXml;
				using (XmlReader xri = XmlReader.Create(new StringReader(tmp)))
				{
					using (XmlWriter xwo = XmlWriter.Create(sw1))
					{
						XslCompiledTransform xsl = new XslCompiledTransform();
						xsl.Load(xrt);
						xsl.Transform(xri, xwo); // Perform Transform
					}
					wbBrwsImporting.DocumentText = sw1.ToString();
				}
			}
		}

		private void AddAttribute(XmlNode xn, string name, string value)
		{
			XmlAttribute xa = xn.OwnerDocument.CreateAttribute(name);
			xa.Value = value.ToString();
			xn.Attributes.Append(xa);
		}
		private void btnOk_Click(object sender, EventArgs e)
		{
			if (!sBtnLoad.Value) UCFImportOptionsCase = E_UCFImportOptions.Ignore;
			else if (!cbUse.Checked) UCFImportOptionsCase = E_UCFImportOptions.LoadNotUsed;
			else if (rbOnlyImported.Checked) UCFImportOptionsCase = E_UCFImportOptions.LoadOnlyImported;
			else if (rbAll.Checked) UCFImportOptionsCase = E_UCFImportOptions.LoadUseAll;
			else if (rbSetOnly.Checked) UCFImportOptionsCase = E_UCFImportOptions.LoadForSetOnly;
			this.Close();
		}

		private void sBtnLoad_ValueChanged(object sender, EventArgs e)		// Import options for UCF Change: Load switch button
		{
			if (_Initializing) return;
			if (sBtnLoad.Value)
			{
				grPnlLoad.Enabled = true;		// Import the ucf change. let user select whether to use it.
				grPnlUse.Enabled = false;
				cbUse.Checked = false;
			}
			else
			{
				grPnlLoad.Enabled = false;		// Don't import the ucf change.
				grPnlUse.Enabled = false;
			}
		}

		private void cbUse_CheckedChanged(object sender, EventArgs e)		// Import options for UCF Change: use checkbox
		{
			if (_Initializing) return;
			if (cbUse.Checked)
				grPnlUse.Enabled = true;		// Use the change.  enable the load group & select for imported only
			else
				grPnlUse.Enabled = false;		// Don't use the change.
		}

		private void cmbFNames_SelectedIndexChanged(object sender, EventArgs e)
		{
			int indx = cmbFNames.SelectedIndex;
			string existingFC = ExistingFC[indx];
			string importedFC = ImportedFC[indx];
			DisplayXmlDiff(existingFC, importedFC);
		}
	}
}