/* 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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 * SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using XenAdmin;
using XenAdmin.Core;
using XenAdmin.Network;
using System.Linq;

namespace XenAPI
{
    public partial class Pool_update : IComparable<Pool_update>
    {
        public override string Name
        {
            get { return name_label; }
        }

        public override string Description
        {
            get { return name_description; }
        }

        public bool AppliedOn(Host host)
        {
            var hostUpdates = host.Connection.ResolveAll(host.updates);

            if (hostUpdates != null)
            {
                foreach (var hostUpdate in hostUpdates)
                {
                    if (hostUpdate != null && string.Equals(hostUpdate.uuid, uuid, StringComparison.OrdinalIgnoreCase))
                        return true;
                }
            }

            return false;
        }

        public List<Host> AppliedOnHosts
        {
            get 
            {
                return
                    this.Connection.Cache.Hosts.Where(h => this.AppliedOn(h)).ToList();
            }
        }

        private string enforce_homogeneity_key = "enforce_homogeneity";

        public bool EnforceHomogeneity
        {
            get
            {
                if (Helpers.InvernessOrGreater(Connection))
                    return enforce_homogeneity;
                var poolPatchOfUpdate = Connection.Cache.Pool_patches.FirstOrDefault(p => p.pool_update != null && p.pool_update.opaque_ref == opaque_ref);
                return poolPatchOfUpdate != null && BoolKey(poolPatchOfUpdate.other_config, enforce_homogeneity_key);
            }
        }
    }
}