/* 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 
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 */

using System;
using XenAdmin.Core;
using XenAPI;

namespace XenAdmin.Diagnostics.Hotfixing
{
    internal static class HotfixFactory
    {
        public enum HotfixableServerVersion
        {
            Stockholm
        }

        private static readonly Hotfix stockholmHotfix = new SingleHotfix
        {
            Filename = "RPU005",
            UUID = "bca031a8-db23-4932-833d-20170b2ae565"
        };

        public static Hotfix Hotfix(Host host)
        {
            if (Helpers.StockholmOrGreater(host) && !Helpers.PostStockholm(host))
                return Hotfix(HotfixableServerVersion.Stockholm);
            return null;
        }

        public static Hotfix Hotfix(HotfixableServerVersion version)
        {
            if (version == HotfixableServerVersion.Stockholm)
                return stockholmHotfix;

            throw new ArgumentException("A version was provided for which there is no hotfix filename");
        }

        public static bool IsHotfixRequired(Host host)
        {
            return Hotfix(host) != null;
        }
    }
}