#region Disclaimer / License
// Copyright (C) 2009, Kenneth Skovhede
// http://www.hexad.dk, opensource@hexad.dk
// 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
// 
#endregion
using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using OSGeo.MapGuide.Maestro;

namespace OSGeo.MapGuide.Maestro.ResourceEditors.FeatureSourceEditors.OGR
{
	/// <summary>
	/// Summary description for Oracle.
	/// </summary>
	public class Oracle : System.Windows.Forms.UserControl
	{
		private System.Windows.Forms.TextBox Table;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.TextBox Database;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label7;
		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		private OSGeo.MapGuide.MaestroAPI.FeatureSource m_item;
		private bool m_isUpdating = false;
		private ResourceEditors.FeatureSourceEditors.ODBC.Credentials credentials;
		private EditorInterface m_editor;

		private string m_username;
		private string m_password;

		public void SetItem(ResourceEditors.EditorInterface editor, OSGeo.MapGuide.MaestroAPI.FeatureSource item)
		{
			m_editor = editor;
			m_item = item;
			UpdateDisplay();
		}

		public void UpdateDisplay()
		{
			if (m_item == null)
				return;

			try
			{
				m_isUpdating = true;
				string connectionstring = m_item.Parameter["DataSource"];
				if (connectionstring == null)
					connectionstring = "";

				if (!connectionstring.StartsWith("OCI:"))
					connectionstring = "";
				else
					connectionstring = connectionstring.Substring("OCI:".Length);

				if (connectionstring.IndexOf("@") > 0)
				{
					string usernamepassword = connectionstring.Substring(0, connectionstring.IndexOf("@"));
					connectionstring = connectionstring.Substring(usernamepassword.Length + 1);
					string[] parts = usernamepassword.Split('/');
					if (parts.Length > 1)
					{
						m_username = parts[0];
						m_password = parts[1];
					}
					else
					{
						m_username = "";
						m_password = "";
					}
				}

				credentials.SetCredentials(m_username, m_password);

				if (connectionstring.IndexOf(":") > 0)
				{
					Database.Text = connectionstring.Substring(0, connectionstring.IndexOf(":"));
					connectionstring = connectionstring.Substring(Database.Text.Length + 1);
				}
               
				Table.Text = connectionstring;
			}
			finally
			{
				m_isUpdating = false;
			}
		}

		private void UpdateConnectionString()
		{
			if (m_item == null) 
				return;

			System.Text.StringBuilder sb = new System.Text.StringBuilder();
			sb.Append("OCI:");
			sb.Append(m_username);
			sb.Append("/");
			sb.Append(m_password);
			sb.Append("@");
			sb.Append(Database.Text);
			
			if (Table.Text.Trim().Length > 0)
			{
				sb.Append(":");
				sb.Append(Table.Text);
			}

			m_item.Parameter["DataSource"] = sb.ToString();
		}

		private string GetDefaultValue(string item, string defaultValue)
		{
			if (item != null && item.Trim().Length > 0)
				return item;
			else
				return defaultValue;
		}

		public Oracle()
		{
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();
		}

		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Component Designer generated code
		/// <summary> 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Oracle));
            this.Table = new System.Windows.Forms.TextBox();
            this.label3 = new System.Windows.Forms.Label();
            this.Database = new System.Windows.Forms.TextBox();
            this.label2 = new System.Windows.Forms.Label();
            this.label7 = new System.Windows.Forms.Label();
            this.credentials = new OSGeo.MapGuide.Maestro.ResourceEditors.FeatureSourceEditors.ODBC.Credentials();
            this.SuspendLayout();
            // 
            // Table
            // 
            resources.ApplyResources(this.Table, "Table");
            this.Table.Name = "Table";
            this.Table.TextChanged += new System.EventHandler(this.SomeProperty_Change);
            // 
            // label3
            // 
            resources.ApplyResources(this.label3, "label3");
            this.label3.Name = "label3";
            // 
            // Database
            // 
            resources.ApplyResources(this.Database, "Database");
            this.Database.Name = "Database";
            this.Database.TextChanged += new System.EventHandler(this.SomeProperty_Change);
            // 
            // label2
            // 
            resources.ApplyResources(this.label2, "label2");
            this.label2.Name = "label2";
            // 
            // label7
            // 
            resources.ApplyResources(this.label7, "label7");
            this.label7.Name = "label7";
            // 
            // credentials
            // 
            resources.ApplyResources(this.credentials, "credentials");
            this.credentials.Name = "credentials";
            this.credentials.CredentialsChanged += new OSGeo.MapGuide.Maestro.ResourceEditors.FeatureSourceEditors.ODBC.Credentials.CredentialsChangedDelegate(this.credentials_CredentialsChanged);
            // 
            // Oracle
            // 
            resources.ApplyResources(this, "$this");
            this.Controls.Add(this.credentials);
            this.Controls.Add(this.label7);
            this.Controls.Add(this.Table);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.Database);
            this.Controls.Add(this.label2);
            this.Name = "Oracle";
            this.ResumeLayout(false);
            this.PerformLayout();

		}
		#endregion

		private void SomeProperty_Change(object sender, System.EventArgs e)
		{
			if (m_isUpdating || m_item == null)
				return;

			if (m_item.Parameter == null)
				m_item.Parameter = new OSGeo.MapGuide.MaestroAPI.NameValuePairTypeCollection();

			UpdateConnectionString();
			m_editor.HasChanged();
		
		}

		private void credentials_CredentialsChanged(string username, string password)
		{
			if (m_isUpdating || m_item == null)
				return;

			m_username = username;
			m_password = password;

			SomeProperty_Change(null, null);
		}
	}
}