PureEngage On-Premises

I have a requirement to display the NotReady ReasonCode.  But, I cannot find any code examples (preferably C#, but can translate) that show how to do this.  There are code samples for retreiving the CurrentAgentState, but all you get is "NotReadyForNextCall".  I need the 'why'.  I've tried to dig into CCPulse to find this information, but even using the AgentPerformanceView -> CurrentState -> ReasonCode: doesn't display the actual reason string.  I have ActionCodes added in CME.  I've logged into the Genesys Support Phone and submitted the ReasonCode.
From the Test Phone
2016-08-23@16:07:05.982->[14] TAgentNotReady(,9938039,0,DATA,NULL)
Reasons:
(Str) REASON LUNCH
2016-08-23@16:07:06.32
Event:EventAgentNotReady
Server:65201
ReferenceID:14
AgentID:Z999283
ThisDN:9938039
Reasons:
(Str) REASON LUNCH
Extensions:
(Str) AgentSessionID B6055VE9O90UPD9PO3POK1KAD400043S
Seconds:1471993624
USeconds:658000
Server Time:2016-08-23@16:07:04.658

My questions is, how do I build a StatisticSubject, StatisticObject, StatisticMetricEx, and StatisticCategory to get the ReasonCode.
Note: this is a monitoring application looking at multiple agents.

TIA

Use this statistic for reasons + time output

[CurrentStateReasons]
Category=CurrentStateReasons
MainMask=*
Objects=Agent
ReasonStartOverridesStatusStart=yes
Subject=DNAction

Thanks Hayley.  I'm confused on where to set "ReasonStartOverridesStatusStart=yes" in the StatServer SDK.  Based on your input, I have this code:
 

StatisticObject statisticObject = StatisticObject.Create();
                statisticObject.ObjectId = "AgentID";
                statisticObject.ObjectType = StatisticObjectType.Agent;
                statisticObject.TenantName = "Resources";

                DnActionsMask mainMask = new DnActionsMask();
                mainMask.SetAll();

                DnActionsMask relMask = new DnActionsMask();

                //  Create Statistic Metric
                StatisticMetricEx statisticMetric = StatisticMetricEx.Create(
                    StatisticCategory.CurrentStateReasons,
                    mainMask,
                    relMask,
                    StatisticSubject.DNAction );

                //  Create Get Statistic request
                RequestGetStatisticEx request = RequestGetStatisticEx.Create();
                request.StatisticObject = statisticObject;
                request.StatisticMetricEx = statisticMetric;

                //  Request asynchronously
                statServerProtocol.Send( request );

I didn't see any options for setting: "ReasonStartOverridesStatusStart=yes"

Thanks for the reply and information