/**
  * MainHandler for GuezIedManagement
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Philipp Dassow 2017-07-20
  */

#include "main_handler.h"

#include <DDS/DDSConnector/dds_connector.h>

#include <DDS/Core/pacemaker.h>
#include <ngldb/db_service_handler.h>
#include <CodificationManagement/initialization.h>
#include <EffectShowManagement/initialization.h>
#include <GuezMinelayerProcessing/initialization.h>

#include "handler_ied.h"
#include "settings.h"

using namespace GuezIedManagement;

MainHandler::MainHandler()
  : m_handlerIed(nullptr)
  , m_ddsHandler(nullptr)
  , m_dbHandler(nullptr)
  , m_codService(nullptr)
  , m_esmService(nullptr)
  , m_gmpService(nullptr)
  , m_exerciseId(0)
  , m_logger(getLogger("MainHandler"))
{}

MainHandler::~MainHandler()
{
  delete m_codService;
  delete m_esmService;
  delete m_gmpService;
  m_handlerIed = nullptr;
  m_ddsHandler = nullptr;
  m_dbHandler = nullptr;
}

bool MainHandler::init(int domainId, int exerciseId)
{
  m_exerciseId = exerciseId;
  const QString errStr = initInternal(domainId, exerciseId);
  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, errStr);
  return true;
}

QString MainHandler::initInternal(int domainId, int exerciseId)
{
  // initialize database
  m_dbHandler = std::make_shared<DbHandler>();
  if (!m_dbHandler->init(exerciseId, Settings::settings()))
    return QStringLiteral("Initialisation dbHandler failed.");

  // initialize DDS
  m_ddsHandler = std::make_shared<DdsHandler>(domainId, exerciseId);
  if (!m_ddsHandler->init())
    return QStringLiteral("Initialisation ddsHandler failed.");

  // initialize handler ied
  m_handlerIed = std::make_shared<HandlerIed>(this, m_ddsHandler, m_dbHandler->db());
  if (!loadFromDatabase())
    return QStringLiteral("Initialisation m_handlerIed failed.");

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

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

  m_gmpService = new GuezMinelayerProcessing::Initialization;
  if (!m_gmpService->initialize(m_ddsHandler->dds()) ||
      !m_gmpService->loadFromDatabase())
    return QStringLiteral("Can not initialize GMP service.");

  return QString();
}

bool MainHandler::loadFromDatabase()
{
  if (!m_ddsHandler || !m_dbHandler || !m_handlerIed)
    return false;
  if (!m_handlerIed->init())
  {
    ERROR_LOG(m_logger) << "Initialisation HandlerIED failed.";
    return false;
  }
  return true;
}