/**
  * MainHandler for AssetManagement
  * $Id$
  * $HeadURL$
  * $Author$
  */

#include "main_handler.h"

#include <DDS/DDSConnector/dds_connector.h>
#include <DDS/Core/pacemaker.h>

#include <ngldb/db_service_handler.h>
#include "settings.h"

#include <QFileInfo>

namespace TargetManagement
{

MainHandler::MainHandler(QObject *parent)
  : QObject(parent)
  , m_ddsHandler(nullptr)
  , m_dbHandler(nullptr)
  , m_logger(getLogger("MainHandler"))
{}

MainHandler::~MainHandler()
{
  m_handlerTargetConfig.reset();

  // Land400 :
  m_shootbackController.reset();
  m_elevationMap.reset();
  m_handlerTargetAreaAssignment.reset();
  m_handlerShootbackArea.reset();
  m_handlerShootbackTarget.reset();
  // : Land400

  m_ddsHandler.reset();
  m_dbHandler.reset();
}

bool MainHandler::init(int domainId, int exerciseId)
{
  INFO_LOG(m_logger) << "MainHandler::init";

  // initialize database
  m_dbHandler = std::make_shared<DbHandler>();
  if (!m_dbHandler->init(exerciseId, Settings::settings()))
    return false;

  // initialize DDS
  m_ddsHandler = std::make_shared<DdsHandler>(domainId, exerciseId);
  if (!m_ddsHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation ddsHandler failed.";
    return false;
  }
  DEBUG_LOG(m_logger) << "Initialisation ddsHandler succesful.";

  NOTICE_LOG(m_logger) << "setNewState Core::RunningState::Starting ";
  m_ddsHandler->pacemaker()->setNewState(Core::RunningState::Starting);

  // initialize handlerTargetConfig
  m_handlerTargetConfig = std::make_shared<HandlerTargetConfig>(m_ddsHandler, this);

  if (!m_handlerTargetConfig->init())
  {
    ERROR_LOG(m_logger) << "Initialisation HandlerTargetConfig failed.";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

  if (TargetManagement::Settings::useL400Targets())
  {
    //
    // L400: ElevationMap, ShootbackArea, ShootbackTarget ..
    // use srtm_38_02.tif for Bremen, until general solution is provided:
    // loading ElevationMap (async):
    //
    // use srtm_38_02.tif for Bremen, until general solution is provided:

    QString elevationFileAbs(QLatin1String("/usr/share/arcgis/resources/elevation/srtm_38_02.tif")); // srtm_38_02.tif -> Bremen
    QFileInfo fi(elevationFileAbs);
    if (!fi.exists(elevationFileAbs))
    {
      ERROR_LOG(m_logger) << LOGFUNCTION << ", elevationFile '" << elevationFileAbs << "' doesn't exists";
      return false;
    }

    m_elevationMap = std::make_shared<SituationMap::ElevationMap>(fi);
    m_elevationMap->waitForInitialization();  // needs some seconds:


    //
    // initialize handlerShootbackArea
    m_handlerShootbackArea = std::make_shared<HandlerShootbackArea>(this);

    if (!m_handlerShootbackArea->init())
    {
      ERROR_LOG(m_logger) << "Initialisation HandlerShootbackArea failed.";
      m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
      return false;
    }

    // initialize handlerShootbackTarget
    m_handlerShootbackTarget = std::make_shared<HandlerShootbackTarget>(this);

    if (!m_handlerShootbackTarget->init())
    {
      ERROR_LOG(m_logger) << "Initialisation HandlerShootbackTarget failed.";
      m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
      return false;
    }

    // initialize handlerTargetAreaAssignment
    m_handlerTargetAreaAssignment = std::make_shared<HandlerTargetAreaAssignment>(this);

    if (!m_handlerTargetAreaAssignment->init())
    {
      ERROR_LOG(m_logger) << "Initialisation HandlerTargetAreaAssignment failed.";
      m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
      return false;
    }

    // shootbackController
    m_shootbackController = std::make_shared<ShootbackController>(this);
    bool initLos = m_shootbackController->initLOS(m_elevationMap.get());
    bool initDds = m_shootbackController->initDds(m_handlerShootbackArea,
                                                  m_handlerShootbackTarget,
                                                  m_handlerTargetAreaAssignment);

    if (!(initLos && initDds))
    {
      ERROR_LOG(m_logger) << "Initialisation ShootbackController failed.";
      m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
      return false;
    }

  }

  NOTICE_LOG(m_logger) << "setNewState Core::RunningState::Running ";
  m_ddsHandler->pacemaker()->setNewState(Core::RunningState::Running);
  return true;
}

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


}   // namespace TargetManagement