/**
  * @RDE_HEADER@
  * Data Plugin for ExerciseManangement
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Ehrlicher, SLSE, 2016-02-29
  */

#include "opm_data_plugin.h"

#include <DDS/DDSConnector/dds_connector.h>
#include <LtsSession/lts_session_data_dds.h>
#include <LtsUtilsCore/dds_vector.h>
#include <LtsUtilsSettings/settings.h>
#include <LtsSession/lts_session_data.h>
#include <Plugins/OperatorManagement/opm_gui_plugin_interface.h>
#include <Services/OperatorManagement/logger.h>

#include <QDateTime>
#include <QTimer>


namespace OperatorManagement
{

std::shared_ptr<DataPluginBase::Interface> DataPlugin::createDataInterface(LtsSession::LtsSessionDataDds *session)
{
  std::shared_ptr<Interface::Dtc> dtc;
  std::shared_ptr<Interface::Ftc> ftc;
  if (!session->createTopicClient(dtc, ftc, false, true))
    return std::shared_ptr<DataPluginBase::Interface>();
  return std::make_shared<DataInterfaceImpl>(dtc, ftc, session);
}


DataInterfaceImpl::DataInterfaceImpl(const std::shared_ptr<OperatorManagement::Interface::Dtc> &dtc,
                                     const std::shared_ptr<OperatorManagement::Interface::Ftc> &ftc,
                                     LtsSession::LtsSessionDataDds *session)
  : DataInterface()
  , m_dtc(dtc)
  , m_ftc(ftc)
  , m_foreignInterface(std::make_shared<ForeignInterfaceImpl>(dtc, ftc, session))
{}


ForeignInterfaceImpl::ForeignInterfaceImpl(const std::shared_ptr<OperatorManagement::Interface::Dtc> &dtc,
                                           const std::shared_ptr<OperatorManagement::Interface::Ftc> &ftc,
                                           LtsSession::LtsSessionDataDds *session)
  : m_dtc(dtc)
  , m_ftc(ftc)
  , m_session(session)
  , m_timer(nullptr)
{
  // bleibt Global immer geladen? Wenn nein, IDL::PartitionType::Exercise auch noch nötig
  if (m_session->partitionType() == IDL::PartitionType::Global)
  {
    auto ddsConnector = m_session->ddsConnector();
    m_dtsOperatorWorkstationAlive.reset(ddsConnector->createDTS<DTS::OperatorWorkstationAliveImpl>());

    // send KeepAlive - Messages every n seconds
    m_timer = new QTimer(this);
    connect(m_timer, &QTimer::timeout, this, &ForeignInterfaceImpl::onSendKeepAlive);
    m_timer->setSingleShot(false);
    onSendKeepAlive();
  }
}

ForeignInterfaceImpl::~ForeignInterfaceImpl()
{
  if (m_dtsOperatorWorkstationAlive)
  {
    const auto inst = LtsSessionData::LtsSessionData::getInstance();
    if (inst->getWorkstationId() > 0)
    {
      const OperatorWorkstationAlive alive(inst->getWorkstationId(), 0, 0);
      m_dtsOperatorWorkstationAlive->remove(alive);
    }
  }
}


void ForeignInterfaceImpl::onSendKeepAlive()
{
  if (!m_timer)
    return;

  m_timer->start(30 * 1000);  // every 30s

  if (!m_dtsOperatorWorkstationAlive)
    return;

  const auto inst = LtsSessionData::LtsSessionData::getInstance();
  if (inst->getWorkstationId() <= 0)
    return;
  const OperatorWorkstationAlive alive(inst->getWorkstationId(),
                                       inst->getOperatorId(),
                                       QDateTime::currentMSecsSinceEpoch());
  m_dtsOperatorWorkstationAlive->write(alive);
}

} // namespace OperatorManagement