#region Copyright
/*
* Copyright © 2014-2016 NetApp, Inc. All Rights Reserved.
*
* CONFIDENTIALITY NOTICE: THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION OF
* NETAPP, INC. USE, DISCLOSURE OR REPRODUCTION IS PROHIBITED WITHOUT THE PRIOR
* EXPRESS WRITTEN PERMISSION OF NETAPP, INC.
*/
#endregion

#region Using Directives

using System.ComponentModel;
using System.Management.Automation;
using SolidFire.Core;
using SolidFire.Element.Api;
using System.Linq;

#endregion

namespace SolidFire.Cluster.Set
{
    /// <summary>
    /// Set-SFClusterFullThreshold is used to change the level at which an event is generated when the storage cluster approaches the capacity utilization requested. 
    /// The number entered in this setting is used to indicate the number of node failures the system is required to recover from. 
    /// For example, on a 10 node cluster, if you want to be alerted when the system cannot recover from 3 nodes failures, enter the value of \"3\". 
    /// When this number is reached, a message alert is sent to the Event Log in the Cluster Management Console.
    /// </summary>
    
    [Cmdlet(VerbsCommon.Set, "SFClusterFullThreshold", SupportsShouldProcess = true, ConfirmImpact = ConfirmImpact.High)]
    public class SetSFClusterFullThreshold : SFCmdlet
    {

        #region Private Data

        private long? _stage2AwareThreshold;
        private long? _stage3BlockThresholdPercent;
        private long? _maxMetadataOverProvisionFactor;

        #endregion

        #region Parameters

        [Parameter(Position = 0, Mandatory = false, ParameterSetName ="Stage2AwareThreshold", HelpMessage = "Number of nodes worth of capacity remaining on the cluster that triggers a notification. For version Nitrogen (7.0) or lower.")]
        public long Stage2AwareThreshold
        {
            get { return _stage2AwareThreshold.HasValue ? _stage2AwareThreshold.Value : 0; }
            set { _stage2AwareThreshold = value; }
        }

        [Parameter(Position = 0, Mandatory = false, ParameterSetName ="Stage3BlockThresholdPercent", HelpMessage = "The percent value set for stage3. At this percent full, a warning will be posted in the Alerts log. For version Oxygen (8.0) or higher.")]
        public long Stage3BlockThresholdPercent
        {
            get { return _stage3BlockThresholdPercent.HasValue ? _stage3BlockThresholdPercent.Value : 0; }
            set { _stage3BlockThresholdPercent = value; }
        }

        [Parameter(Position = 1, Mandatory = true, HelpMessage = "A value representative of the number of times metadata space can be over provisioned relative to the amount of space available.")]
        public long MaxMetadataOverProvisionFactor
        {
            get
            {
                return _maxMetadataOverProvisionFactor.HasValue ? _maxMetadataOverProvisionFactor.Value : 0;
            }
            set
            {
                _maxMetadataOverProvisionFactor = value;
            }
        }

        #endregion

        #region Cmdlet Overrides
        protected override void BeginProcessing()
        {
            base.BeginProcessing();
            CheckConnection();
        }

        protected override void ProcessRecord()
        {
            base.ProcessRecord();
            var request = new ModifyClusterFullThresholdRequest()
            {
                Stage2AwareThreshold = _stage2AwareThreshold,
                Stage3BlockThresholdPercent = _stage3BlockThresholdPercent,
                MaxMetadataOverProvisionFactor = _maxMetadataOverProvisionFactor
            };

           var objsFromApi = SendRequest<ModifyClusterFullThresholdResult>("ModifyClusterFullThreshold", request);
            WriteObject(objsFromApi.Select(obj => obj.Result));

        }


        #endregion
    }
}