/**
  * @RDE_HEADER@
  * Initialization for FileManagement
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Iuliana Ojog, SLSE, 2017-04-03
  */

#include "initialization.h"
#include "dds_handler.h"
#include <ComponentMonitor/cmo.hpp>
#include <ComponentMonitor/cmo_dts.h>
#include <ComponentMonitor/settings.h>
#include <QTimer>

namespace ComponentMonitor
{

Initialization::Initialization()
  : m_logger(getLogger("Initialization"))
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
}

Initialization::~Initialization()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  m_checkmkHandler = nullptr;
  m_componentStatusHandler = nullptr;
  m_ddsHandler = nullptr;
  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
}

bool Initialization::initialize(const std::shared_ptr<DdsHandler> &ddsHandler)
{
  INFO_LOG(m_logger) << LOGFUNCTION << " START";

  // initialize database
  // empty / not required at CMO

  // initialize DDS
  m_ddsHandler = ddsHandler;
  DEBUG_LOG(m_logger) << LOGFUNCTION << "ddsHandler referenced";

  //
  // setup ComponentStatusHandler
  //
  m_componentStatusHandler =  std::make_shared<ComponentStatusHandler>();

  // FIRST enable DTCs
  // DTCs could get samples...
  m_ddsHandler->enableDtcs();

  // SECOND DELAYED real start
  // all dtd::XY_changed (from enabling dtcs) should not be emitted anymore
  QTimer::singleShot(5000, nullptr, [this]()
  {
    this->delayedInit();
  });

  // DO NOT initialize


  //
  // initialize CheckMk (Nagios)
  //
  m_checkmkHandler = std::make_shared<CheckmkHandler>();

  const QString host    = Settings::checkMkHost();
  const int port        = Settings::checkMkPort();
  const int intervalSec = Settings::checkMkIntervalSec();


  //
  // Nov 2021, Thore Poggenburg:
  // CheckMk prueft alle 5 min.
  //
  if (!m_checkmkHandler->initialize(host, port, intervalSec))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " CheckmkHandler::initialize failed";
    return false;
  }
  INFO_LOG(m_logger) << LOGFUNCTION << " CheckmkHandler:initialize succesful";

  QObject::connect(m_checkmkHandler.get(), &CheckmkHandler::newState,
                   m_componentStatusHandler.get(), &ComponentStatusHandler::onNewState, Qt::UniqueConnection);


  //
  // TriggerUpdate via COMMAND 'SCHEDULE_FORCED_HOST_CHECK'
  //
  m_checkmkHandlerScheduleCheck = std::make_shared<CheckmkHandlerScheduleCheck>(m_ddsHandler);
  if (!m_checkmkHandlerScheduleCheck->initialize(host, port))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " CheckmkHandlerScheduleCheck::initialize failed";
    return false;
  }
  INFO_LOG(m_logger) << LOGFUNCTION << " CheckmkHandlerScheduleCheck:initialize succesful";


#ifdef LTS_DEBUG
  //
  // debug purpose:
  //
  QTimer::singleShot(20000, m_checkmkHandlerScheduleCheck.get(), [this](){
    qCritical() << " trigger Update";
    // REF_GUEZ_ECVMAVS01, REF_GUEZ_ECVMADB01, REF_GUEZ_ECMAPWS11
    m_checkmkHandlerScheduleCheck->addScheduleCheckHostnames({QStringLiteral("REF_GUEZ_ECVMAVS01")});
    m_checkmkHandlerScheduleCheck->addScheduleCheckHostnames({QStringLiteral("REF_GUEZ_ECVMADB01")});
    m_checkmkHandlerScheduleCheck->addScheduleCheckHostnames({QStringLiteral("REF_GUEZ_ECMAPWS11")});

    m_checkmkHandlerScheduleCheck->run(1000);  // msec
  });
#endif // LTS_DEBUG


  INFO_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool Initialization::delayedInit()
{
  INFO_LOG(m_logger) << LOGFUNCTION << " START";
  bool success = true;
  if (!m_componentStatusHandler->initialize(m_ddsHandler))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " initialize failed for ComponentStatusHandler";
    success = false;
  }

  INFO_LOG(m_logger) << LOGFUNCTION << " ComponentStatusHandler, statusMapSize=" << m_componentStatusHandler->getHostnames().size();

  m_checkmkHandler->run();

  // after schedules check(s), get new status list:
  QObject::connect(m_checkmkHandlerScheduleCheck.get(), &CheckmkHandlerScheduleCheck::newCheckScheduled,
                   m_checkmkHandler.get(), &CheckmkHandler::onImmediateGetStateRequested, Qt::UniqueConnection);

  // UpdateLastCheckTimeDirect :
  const bool updateLastCheckTimeDirect = Settings::updateLastCheckTimeDirect();
  NOTICE_LOG(m_logger) << LOGFUNCTION << " updateLastCheckTimeDirect [bool] = " << updateLastCheckTimeDirect;
  if (updateLastCheckTimeDirect)
  {
    NOTICE_LOG(m_logger) << LOGFUNCTION << " updateLastCheckTimeDirect is enabled";
    QObject::connect(m_checkmkHandlerScheduleCheck.get(), &CheckmkHandlerScheduleCheck::updateLastCheckTimeDirect,
                     m_componentStatusHandler.get(), &ComponentStatusHandler::onUpdateLastCheckTimeDirect, Qt::DirectConnection);
  }
  // UpdateLastCheckTimeDirect :


  INFO_LOG(m_logger) << LOGFUNCTION << " END";
  return success;
}

} // namespace ComponentMonitor