#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;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Management.Automation;
using SolidFire.Core.Helpers;
using SolidFire.Core.Objects;
using SolidFire.Core.Validation;
using SolidFire.Core;
using SolidFire.Element.Api;
using ElementAccount = SolidFire.Element.Api.Account;
#endregion

namespace SolidFire.Account.Get
{
    /// <summary>
    /// ListAccounts returns the entire list of accounts, with optional paging support.
    /// </summary>
    
    [Cmdlet(VerbsCommon.Get, "SFAccount", DefaultParameterSetName = "AccountId")]
    public class GetSFAccount : SFCmdlet
    {
        #region Private Data

        /// <summary>
        /// 
        /// </summary>
        private Int64[] accountId;

        private string[] username;

        #endregion

        #region Parameters

        [Parameter(Position = 0, ParameterSetName = "AccountId", Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, ValueFromRemainingArguments = false, HelpMessage = "Please enter an account ID or list of account IDs")]
        [ValidateNotNullOrEmpty]
        [ValidatePattern(SolidFireValidations.Numeric)]
        public Int64[] AccountID
        {
            get
            {
                return accountId;
            }
            set
            {
                accountId = value;
            }
        }

        [Parameter(Position = 0, ParameterSetName = "Username", Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, ValueFromRemainingArguments = false, HelpMessage = "Please enter a username or list of usernames")]
        [ValidateNotNullOrEmpty]
        [ValidatePattern(SolidFireValidations.UpperAndLowerCaseNumericAndDots)]
        public String[] Username
        {
            get
            {
                return username;
            }
            set
            {
                username = value;
            }
        }

        #endregion

        #region Cmdlet Overrides
        protected override void BeginProcessing()
        {
            base.BeginProcessing();
            CheckConnection();
        }
        /// <summary>
        /// 
        /// </summary>
        protected override void ProcessRecord()
        {
            base.ProcessRecord();
            var request = new ListAccountsRequest();
            var objsFromAPI = SendRequest<ListAccountsResult>("ListAccounts", request);
            foreach (var obj in objsFromAPI)
            {
                switch (ParameterSetName)
                {
                    case "AccountId":
                        ProcessByAccountId(obj);
                        break;

                    case "Username":
                        ProcessByUserName(obj);
                        break;

                    default:
                        throw new ArgumentException("Invalid parameter set.");
                }
            }
        }

        private void ProcessByUserName(SFWrapper<ListAccountsResult> objFromApi)
        {
            const WildcardOptions options = WildcardOptions.IgnoreCase |
                                            WildcardOptions.Compiled;

            var matchedAccounts = new List<ElementAccount>();

            foreach (var name in username)
            {
                var wildcard = new WildcardPattern(name, options);
                var foundAccounts = objFromApi.Result.Accounts.Where(r => r.Status != "removed" && (wildcard.IsMatch(r.Username))).ToList<ElementAccount>();
                if (foundAccounts.Count > 0)
                {
                    matchedAccounts.AddRange(foundAccounts);
                }
            }

            if (matchedAccounts.Count > 0)
            {
                WriteObject(matchedAccounts.Distinct(), true);
            }

        }

        private void ProcessByAccountId(SFWrapper<ListAccountsResult> objFromApi)
        {
            // If there were no parameter arguments sent in for the Name parameter then we just want to list all volumes.
            if (accountId == null)
            {
                WriteObject(objFromApi.Result.Accounts, true);
                return;
            }

            foreach (var id in accountId)
            {
                var foundAccount = objFromApi.Result.Accounts.FirstOrDefault(r => r.Status != "removed" && r.AccountID == id);
                if (foundAccount != null)
                {
                    WriteObject(foundAccount);
                }
            }
        }

        #endregion
    }
}