/* Copyright (c) Cloud Software Group, Inc. 
 * 
 * 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 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE.
 */

using System;
using XenAPI;

namespace XenAdmin.Actions
{
    public class GetServerLocalTimeAction : AsyncAction
    {
        private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        private Host _host;

        public ServerTimeInfo? ServerTimeInfo;

        public GetServerLocalTimeAction(Host host)
            : base(host.Connection, "", true)
        {
            _host = host;
            ApiMethodsToRoleCheck.Add("host.get_server_localtime");
        }

        protected override void Run()
        {
            try
            {
                var serverLocalTime = Host.get_server_localtime(Connection.Session, _host.opaque_ref);

                ServerTimeInfo = new ServerTimeInfo
                {
                    ServerClientTimeZoneDiff = DateTime.Now - Connection.ServerTimeOffset - serverLocalTime,
                    ServerLocalTime = serverLocalTime
                };
            }
            catch (Exception e)
            {
                log.Error("An error occurred while obtaining the server local time: ", e);
            }
        }
    }

    public struct ServerTimeInfo
    {
        public DateTime ServerLocalTime;
        public TimeSpan ServerClientTimeZoneDiff;
    }
}