/**
  * MainHandler for MeteoDataManagement
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by hjl, SLSE, 2016-09-21
  */

#include "main_handler.h"
#include "settings.h"

#include <DDS/Core/pacemaker.h>
#include <ngldb/db_service_handler.h>
#include <GuezNasat/initialization.h>

namespace MeteoDataManagement
{

MainHandler::MainHandler()
  : m_ddsHandler(nullptr)
  , m_dbHandler(nullptr)
  , m_handlerMeteoDataUnits(nullptr)
  , m_handlerInfrastructureData(nullptr)
  , m_handlerStaticMeteoData(nullptr)
  , m_gnaService(nullptr)
  , m_logger(getLogger("MainHandler"))
{
} // end of ctor()
//-----------------------------------------------------------------------------

MainHandler::~MainHandler()
{
  delete m_gnaService;
  m_handlerMeteoDataUnits = nullptr;
  m_handlerInfrastructureData = nullptr;
  m_handlerStaticMeteoData = nullptr;
  m_ddsHandler = nullptr;
  m_dbHandler = nullptr;
} // end of dtor()
//-----------------------------------------------------------------------------

bool MainHandler::init(int domainId)
{
  INFO_LOG(m_logger) << "Start MeteoDataManagement MainHandler.";
  const QString errStr = initInternal(domainId);
  if (!errStr.isEmpty())
  {
    ERROR_LOG(m_logger) << errStr;
    if (m_ddsHandler && m_ddsHandler->pacemaker())
      m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError, errStr);
    return false;
  }
  m_ddsHandler->pacemaker()->setNewState(Core::RunningState::Running);
  INFO_LOG(m_logger) << "MeteoDataManagement MainHandler initialized.";
  return true;
}

QString MainHandler::initInternal(int domainId)
{
  // initialize DDS
  m_ddsHandler = std::make_shared<DdsHandler>(domainId);
  if (!m_ddsHandler->init())
    return QStringLiteral("Initialisation DdsHandler failed.");

  // initialize database
  m_dbHandler = std::make_shared<DbHandler>();

  if (!m_dbHandler->init(0, Settings::settings()))
    return QStringLiteral("Initialisation DbHandler failed.");

  // create HandlerMeteoDataUnits
  INFO_LOG(m_logger) << "create HandlerMeteoDataUnits.";
  m_handlerMeteoDataUnits = std::make_shared<HandlerMeteoDataUnits>(this);
  if (!m_handlerMeteoDataUnits->init())
    return QStringLiteral("create HandlerMeteoDataUnits failed.");

  // initialize handlerInfraStructureData
  m_handlerInfrastructureData = std::make_shared<HandlerInfrastructureData>(m_ddsHandler, m_handlerMeteoDataUnits);
  if (!m_handlerInfrastructureData->init())
    return QStringLiteral("Initialisation HandlerInfrastructureData failed.");
  // Info: Initialisierung der einzelnen Wetterstationen erfolgt direkt aus ISM.

  // initialize HandlerStaticMeteoData
  m_handlerStaticMeteoData = std::make_shared<HandlerStaticMeteoData>(m_ddsHandler, db());
  if (!m_handlerStaticMeteoData->init())
    return QStringLiteral("Initialisation HandlerStaticMeteoData failed.");

  m_gnaService = new GuezNasat::Initialization;
  if (!m_gnaService->initialize(m_ddsHandler->dds(), m_dbHandler->db()->database()) ||
      !m_gnaService->loadFromDatabase())
    return QStringLiteral("Can not initialize GNA service.");

  return QString();
} // end of init()
//-----------------------------------------------------------------------------

std::shared_ptr<DatabaseInterface> MainHandler::db() const
{
  return m_dbHandler->db();
}


} // namespace MeteoDataManagement