//******************************************************************************************************
//  HomeUserControl.xaml.cs - Gbtc
//
//  Copyright © 2010, Grid Protection Alliance.  All Rights Reserved.
//
//  Licensed to the Grid Protection Alliance (GPA) under one or more contributor license agreements. See
//  the NOTICE file distributed with this work for additional information regarding copyright ownership.
//  The GPA licenses this file to you under the MIT License (MIT), the "License"; you may
//  not use this file except in compliance with the License. You may obtain a copy of the License at:
//
//      http://www.opensource.org/licenses/MIT
//
//  Unless agreed to in writing, the subject software distributed under the License is distributed on an
//  "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. Refer to the
//  License for the specific language governing permissions and limitations.
//
//  Code Modification History:
//  ----------------------------------------------------------------------------------------------------
//  07/27/2011 - Mehulbhai P Thakkar
//       Generated original version of source code.
//
//******************************************************************************************************

using System.Collections.ObjectModel;
using System.Windows;
using System.Windows.Controls;
using System.Xml;
using System.Xml.Serialization;
using GSF.IO;

namespace GSF.TimeSeries.UI.UserControls
{
    /// <summary>
    /// Interaction logic for HomeUserControl.xaml
    /// </summary>
    public partial class HomeUserControl : UserControl
    {
        #region [ Members ]

        // Fields
        private readonly ObservableCollection<MenuDataItem> m_menuDataItems;

        #endregion

        #region [ Constructors ]

        /// <summary>
        /// Creates an instance of <see cref="HomeUserControl"/>.
        /// </summary>
        public HomeUserControl()
        {
            InitializeComponent();
            // Load Menu
            XmlRootAttribute xmlRootAttribute = new XmlRootAttribute("MenuDataItems");
            XmlSerializer serializer = new XmlSerializer(typeof(ObservableCollection<MenuDataItem>), xmlRootAttribute);

            using (XmlReader reader = XmlReader.Create(FilePath.GetAbsolutePath("Menu.xml")))
            {
                m_menuDataItems = (ObservableCollection<MenuDataItem>)serializer.Deserialize(reader);
            }
        }

        #endregion

        #region [ Methods ]

        /// <summary>
        /// Recursively finds menu item to navigate to when a button is clicked on the UI.
        /// </summary>
        /// <param name="items">Collection of menu items.</param>
        /// <param name="stringToMatch">Item to search for in menu items collection.</param>
        /// <param name="item">Returns a menu item.</param>
        private void GetMenuDataItem(ObservableCollection<MenuDataItem> items, string stringToMatch, ref MenuDataItem item)
        {
            for (int i = 0; i < items.Count; i++)
            {
                if (items[i].MenuText.Contains(stringToMatch))
                {
                    item = items[i];
                    break;
                }
                else
                {
                    if (items[i].SubMenuItems.Count > 0)
                    {
                        GetMenuDataItem(items[i].SubMenuItems, stringToMatch, ref item);
                    }
                }
            }
        }

        /// <summary>
        /// Handles click event of the buttons on the screen.
        /// </summary>
        /// <param name="sender">Source of the event.</param>
        /// <param name="e">Event arguments.</param>
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            MenuDataItem item = new MenuDataItem();
            FrameworkElement source = e.Source as FrameworkElement;

            switch (source.Name)
            {
                case "ButtonSecurity": GetMenuDataItem(m_menuDataItems, "Security", ref item);
                    break;
                default: break;
            }

            if (item.MenuText != null)
            {
                item.Command.Execute(null);
            }
        }

        #endregion

    }
}