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

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

#include <DDS/Core/pacemaker.h>
#include <LtsPluginManager/lts_plugin_loader.h>

#include <LtsElevation/lts_elevation_manager.h>
#include <LtsCoordinate/lts_coordinate.h>


namespace CentralEffectSimulation
{

MainHandler::MainHandler(QObject *parent)
  : QObject(parent)
  , m_logger(CentralEffectSimulation::getLogger("MainHandler"))
{
  INFO_LOG(m_logger) << "MainHandler::MainHandler";
} // end of ctor()
//-----------------------------------------------------------------------------

MainHandler::~MainHandler()
{
  m_ddsHandler.reset();
  m_db.reset();
  m_handlerParticipant.reset();
  m_handlerBuildingData.reset();

  INFO_LOG(m_logger) << "MainHandler::~MainHandler";
} // end of dtor()
//-----------------------------------------------------------------------------


bool MainHandler::loadPlugin(const LtsPluginManager::PluginInstance &pi)
{
  DEBUG_LOG(m_logger) << "Trying to load ces plugin '" << pi.fullFileName << "'...";

  Plugin::Plugin *cesPlugin = qobject_cast<Plugin::Plugin *>(pi.plugin);
  if (!cesPlugin)
  {
    WARNING_LOG(m_logger) << "failed loading a ces plugin - not a CentralEffectSimulation object!";
    return false;
  }
  DEBUG_LOG(m_logger) << "... success";
  std::shared_ptr<Plugin::Interface> ifc = cesPlugin->createInterface(this,
                                                                      // m_ddsHandler->dds(),
                                                                      nullptr,
                                                                      Settings::settings(),
                                                                      this);

  DEBUG_LOG(m_logger) << "Vorher: m_interfaces.size=" << m_interfaces.size();


  if (!ifc || !ifc->init(m_domainId, m_exerciseId))
  {
    WARNING_LOG(m_logger) << "Could not initialize CentralEffectSimulation plugin";
    return false;
  }

  static int counter = 0;
  INFO_LOG(m_logger) << "Loading and init of ces_plugin successfull: "
                       << ++counter
                       << " pluginName = '" << pi.pluginName << "'"
                       << ", filename '" << pi.fullFileName << "'";

  m_interfaces.push_back(ifc);
  DEBUG_LOG(m_logger) << "Nachher: m_interfaces.size=" << m_interfaces.size();

  DEBUG_LOG(m_logger) << "ECHO!" << ifc->echo(QStringLiteral("TEST"));

  return true;
}






bool MainHandler::init(int domainId, int exerciseId)
{
  m_domainId = domainId;
  m_exerciseId = exerciseId;
  INFO_LOG(m_logger) << "Start MessageDataManagement MainHandler. domainId =" << domainId
                       << " exerciseId=" << exerciseId;

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

  if (!m_dbHandler->init(exerciseId, Settings::settings()))
  {
    ERROR_LOG(m_logger) << "Initialisation DbHandler failed.";
    return false;
  }
  m_db = m_dbHandler->db();
  INFO_LOG(m_logger) << "MainHandler::init DbHandler initialized. ";


  // initialize DDS
  m_ddsHandler = std::make_shared<DdsHandler>(domainId, exerciseId);
  if (!m_ddsHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation DdsHandler failed.";
    if (m_ddsHandler->pacemaker())
      m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }


  NOTICE_LOG(m_logger) << LOGFUNCTION << " LtsElevationManager...  ";

  LtsElevation::LTS_ELEVATION_MANAGER_TYPE ltsElevationManager = LtsElevation::LtsElevationManager::createInstance(exerciseId,
                                                                                                                   dds()->exmDtc(),
                                                                                                                   dds()->asmDtc());
  if (ltsElevationManager)
  {
    // waitForInitialization,
    // ElevationFile is read in a workerThread and waitForInitialization is used via QFutureWatcher
    // So the logMsg 'Finished reading elevation map of file' will be shown with a delay.
    // This is no error.
    ltsElevationManager->waitForInitialization();
    DEBUG_LOG(m_logger) << LOGFUNCTION << " LtsElevationManager... waitForInitialization DONE";

    // using elevationCbFunc = std::function<double(double, double, double, bool*)>;
    using namespace std::placeholders;
    LtsCoordTrans::LtsCoordinate::elevationCbFunc elevationCB = std::bind(&LtsElevation::LtsElevationManager::elevation,
                                                                          ltsElevationManager.data(), _1, _2, _3, _4);
    LtsCoordTrans::LtsCoordinate::setElevationCallback(elevationCB);

    NOTICE_LOG(m_logger) << LOGFUNCTION << " LtsElevationManager... LtsCoordinate::setElevationCallback DONE";
  }


  DEBUG_LOG(m_logger) << LOGFUNCTION << " LtsElevationManager... DONE ";



  // initialize handlerBuildingData do this before init AesDataHandler
  m_handlerBuildingData = std::make_shared<HandlerBuildingData>(m_ddsHandler, this);

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


  // initialize handlerParticipant
  //m_handlerParticipant = std::make_shared<HandlerParticipant>(m_ddsHandler,
  //                                                                    this);

  int cheatingDistanceVehicle = Settings::cesCheatingDistanceVehicle();
  int cheatingDistanceSoldier = Settings::cesCheatingDistanceSoldier();

  m_handlerParticipant = std::make_shared<HandlerParticipant>(m_ddsHandler,
                                                              m_handlerBuildingData,
                                                              cheatingDistanceVehicle,
                                                              cheatingDistanceSoldier,
                                                              this);

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


  ///////////////
  /// Plugins ///
  ///////////////

  // ProxyBuilding:
  // some plugins need access to other plugins (siblings)
  // If a plugin would like to offer a function, the ProxyXY could be used;
  m_proxyBuilding = std::make_shared<ProxyBuilding>();




  auto cb = [&](const LtsPluginManager::PluginInstance &pi) { return loadPlugin(pi); };
  LtsPluginManager::LtsPluginLoader::getInstance()->loadPlugins(LtsPluginManager::PluginType::SPECIAL,
                                                                cb,
                                                                QStringList(),
                                                                QStringLiteral("ces"));

  if (m_interfaces.empty())
  {
    WARNING_LOG(m_logger) << "Could not load any Central Effect Simulation plugin";
    return false;
  }
  INFO_LOG(m_logger) << "m_interfaces size=" << m_interfaces.size();

  //  for (/*std::shared_ptr<*/Plugin::EchoInterface/*> &*/   *ifc : m_interfaces)
  //    INFO_LOG(m_logger) << "ECHO! " << ifc->echo(QStringLiteral("TEST"));
  //m_txHandler->addTxHandler(ifc->sendToTab());
  ///////////////////
  /// End Plugins ///
  ///////////////////

  m_ddsHandler->pacemaker()->setNewState(Core::RunningState::Running);

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

} // namespace