#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.Linq;
using System.Management.Automation;
using System.Management.Automation.Runspaces;
using SolidFire.Core;
using SolidFire.Element.Api;
#endregion

namespace SolidFire.Cluster.Set
{
    /// <summary>
    /// SetSnmpInfo is used to configure SNMP v2 and v3 on the cluster nodes. The values set with this interface apply to all nodes in
    /// the cluster, and the values that are passed replace, in whole, all values set in any previous call to SetSnmpInfo.
    /// </summary>
    
    [Cmdlet(VerbsCommon.Set, "SFSnmpInfo", SupportsShouldProcess = true, ConfirmImpact = ConfirmImpact.High)]
    public class SetSFSnmpInfo : SFCmdlet
    {
        #region Private Data

        /// <summary>
        /// Member used to host a nested Pipeline for calling other CmdLets
        /// </summary>
        private Pipeline pipeline = null;

        #endregion

        #region Parameters
        /// <summary>
        /// List of networks and what type of access they have to the SNMP servers running on the cluster nodes. 
        /// See SNMP Network Object for possible "networks" values. SNMP v2 only.
        /// </summary>
        [Parameter(Position = 0, Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "List of networks and what type of access they have to the SNMP servers running on the cluster nodes. See SNMP Network Object for possible 'networks' values. SNMP v2 only.")]
        public SnmpNetwork[] Networks { get; set; }

        /// <summary>
        /// If set to "true", then SNMP is enabled on each node in the cluster.
        /// </summary>
        [Parameter(Position = 1, Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "If set to 'true', then SNMP is enabled on each node in the cluster.")]
        public bool Enabled { get; set; }

        /// <summary>
        /// If set to "true", then SNMP v3 is enabled on each node in the cluster.
        /// </summary>
        [Parameter(Position = 2, Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "If set to 'true', then SNMP v3 is enabled on each node in the cluster.")]
        public bool SnmpV3Enabled { get; set; }

        /// <summary>
        /// If SNMP v3 is enabled, this value must be passed in place of the "networks" parameter. SNMP v3 only.
        /// </summary>
        [Parameter(Position = 3, Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "If SNMP v3 is enabled, this value must be passed in place of the 'networks' parameter. SNMP v3 only.")]
        public SnmpV3UsmUser[] UsmUsers { get; set; }

        #endregion

        #region Cmdlet Overrides

        protected override void BeginProcessing()
        {
            base.BeginProcessing();
            CheckConnection();
            pipeline = Runspace.DefaultRunspace.CreateNestedPipeline();
        }

        protected override void EndProcessing()
        {
            base.EndProcessing();
            var command = new Command("Get-SFSnmpInfo");
            pipeline.Commands.Add(command);
            // Send it to the pipline
            WriteObject(pipeline.Invoke(), true);
            pipeline = null;
        }

        /// <summary>
        /// Implementation for processing the execution of the cmdlet.
        /// </summary>
        protected override void ProcessRecord()
        {
            base.ProcessRecord();
            
            // Assemble the parameters object
            var request = new SetSnmpInfoRequest();
            request.Enabled = Enabled;
            if (Networks != null)
            {
                request.Networks = Networks.Distinct().ToArray();
            }
            request.SnmpV3Enabled = SnmpV3Enabled;
            if (UsmUsers != null)
            {
                request.UsmUsers = UsmUsers.Distinct().ToArray();
            }

            SendRequest<SetSnmpInfoResult>("SetSnmpInfo", request);
        }

        #endregion
    }
}