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 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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 */

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using XenAdmin.XenSearch;


namespace XenAdmin.Controls
{
    public partial class TreeSearchBox : UserControl
    {
        public enum Mode { Infrastructure, Objects, Organization, SavedSearch }
        private Mode currentMode;
        private Search currentSearch;

        public TreeSearchBox()
        {
            InitializeComponent();
            Search.SearchesChanged += Search_SearchesChanged;
            PopulateMenu();
        }

        private void Search_SearchesChanged()
        {
            PopulateMenu();
        }

        private void PopulateMenu()
        {
            comboButtonViews.ClearItems();

            AddMenuItem(Messages.VIEW_INFRASTRUCTURE, Mode.Infrastructure);
            AddMenuItem(Messages.VIEW_OBJECTS, Mode.Objects);
            AddMenuItem(Messages.VIEW_ORGANIZATION, Mode.Organization);

            Search[] searches = Search.Searches;
            Array.Sort<Search>(searches);

            foreach (Search search in searches)
                AddSearchMenuItem(search);
        }

        private void AddMenuItem(string name, object tag, Image image, bool selected)
        {
            var menuItem = new ToolStripMenuItem(name)
                {
                    Image = image,
                    Tag = tag
                };
            comboButtonViews.AddItem(menuItem);
            if (selected)
                comboButtonViews.SelectedItem = menuItem;
        }

        private void AddMenuItem(string name, Mode mode)
        {
            AddMenuItem(name, mode, null, currentMode == mode);
        }

        private void AddSearchMenuItem(Search search)
        {
            AddMenuItem(search.Name.EscapeAmpersands(), search,
                search.DefaultSearch ? Properties.Resources._000_defaultSpyglass_h32bit_16 : Properties.Resources._000_Search_h32bit_16,
                currentMode == Mode.SavedSearch && currentSearch.UUID == search.UUID);
        }

        private void comboButtonViews_SelectedItemChanged(object sender, EventArgs e)
        {
            ToolStripMenuItem menuItem = comboButtonViews.SelectedItem as ToolStripMenuItem;
            if (menuItem == null)
                return;
            bool isSearch = menuItem.Tag is Search;

            if (isSearch)
            {
                currentSearch = (Search)menuItem.Tag;
                currentMode = Mode.SavedSearch;
            }
            else
            {
                Mode mode = (Mode)menuItem.Tag;
                currentMode = mode;
            }

            if (SearchChanged != null)
                SearchChanged(currentMode);
        }

        public event Action<Mode> SearchChanged;

        public Search Search
        {
            get
            {
                switch (currentMode)
                {
                    case Mode.Infrastructure:
                        return TreeSearch.DefaultTreeSearch ?? TreeSearch.SearchFor(null);
                    case Mode.Objects:
                        return Search.SearchForAllTypes();
                    case Mode.Organization:
                        return Search.SearchForOrganization();
                    default:  // Mode.SavedSearch
                        return currentSearch;
                }
            }
        }
    }
}