/* Copyright (c) Citrix Systems Inc. 
 * All rights reserved. 
 * 
 * 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 
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 *     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 
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 * 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.Text;
using XenAdmin.Network;
using XenAdmin.Wizards.PatchingWizard;
using XenAdmin.Properties;
using System.Drawing;
using XenAdmin.Core;
using XenAPI;


namespace XenAdmin.Commands
{
    /// <summary>
    /// Shows the patching wizard.
    /// </summary>
    internal class InstallNewUpdateCommand : Command
    {
        /// <summary>
        /// Initializes a new instance of this Command. The parameter-less constructor is required if 
        /// this Command is to be attached to a ToolStrip menu item or button. It should not be used in any other scenario.
        /// </summary>
        public InstallNewUpdateCommand()
        {
        }

        public InstallNewUpdateCommand(IMainWindow mainWindow)
            : base(mainWindow)
        {
        }

        protected override void ExecuteCore(SelectedItemCollection selection)
        {
            MainWindowCommandInterface.ShowForm(typeof(PatchingWizard));
        }

        protected override bool CanExecuteCore(SelectedItemCollection selection)
        {
            foreach (IXenConnection xenConnection in ConnectionsManager.XenConnectionsCopy)
            {
                if (!xenConnection.IsConnected)
                    continue;

                Pool pool = Helpers.GetPoolOfOne(xenConnection);
                if (pool != null && pool.IsPatchingForbidden)
                    continue;

                return true;
            }
            return false;
        }

        public override Image ContextMenuImage
        {
            get
            {
                return Resources._000_HostUnpatched_h32bit_16;
            }
        }

        public override string ContextMenuText
        {
            get
            {
                return Messages.INSTALL_PENDING_UPDATES;
            }
        }
    }
}