/* 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 
 *     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 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
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 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
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 */

using System.Collections.Generic;
using XenAdmin.Controls.CheckableDataGridView;

namespace XenAdmin.Dialogs.LicenseManagerLicenseRowComparers
{
    public class ProductColumnComparer : IComparer<CheckableDataGridViewRow>
    {
        public int Compare(CheckableDataGridViewRow x, CheckableDataGridViewRow y)
        {
            LicenseDataGridViewRow lx = x as LicenseDataGridViewRow;
            LicenseDataGridViewRow ly = y as LicenseDataGridViewRow;

            if (lx == null && ly != null)
                return 1;

            if (lx != null && ly == null)
                return -1;

            if (lx == null && ly == null)
                return 0;

            int nameValue = lx.LicenseName.CompareTo(ly.LicenseName);
            return nameValue == 0 ? lx.LicenseProductVersion.CompareTo(ly.LicenseProductVersion) : nameValue;
        }

    }
}