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

#include "main_handler.h"
#include <DBAdministration/exercise_table_generator.h>

#include "handler_exercise.h"
#include "handler_exercise_phase.h"
#include "settings.h"

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

namespace ExerciseManagement
{

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

MainHandler::~MainHandler()
{
  m_handlerExercisePhases = nullptr;
  m_handlerExercise = nullptr;
  m_websocketHandler = nullptr;
  m_exTblGen = nullptr;
  m_dbHandler = nullptr;
  m_ddsHandler = nullptr;
}

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

  // initialize database
  m_dbHandler = std::make_shared<DbHandler>();
  if (!m_dbHandler->init(0, Settings::settings()))
  {
    ERROR_LOG(m_logger) << "Initialisation dbHandler failed.";
    return false;
  }

  // initialize DbAdministration
  if (!initDbAdminstration())
  {
    ERROR_LOG(m_logger) << "Initialisation dbAdministration failed.";
    return false;
  }

  //create all global schemas + tables
  m_exTblGen->executeSql();

  // read project specific data from database
  // publish project specific data
  // initialize the specific handler
  if (!initExerciseHandler())
    return false;

  if (!initExercisePhaseHandler())
    return false;

  if (!initWebSocketHandler())
    return false;

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

  return true;
}

bool MainHandler::initDbAdminstration()
{
  // xmlPath
  const QString xmlPath = NGL::directory(NGL::FileType::ConfigFile, QLatin1String("xml"));
  m_exTblGen = std::make_shared<DBAdministration::ExerciseTableGenerator>(getLogger("ExerciseTableGenerator"), xmlPath);
  connect(m_exTblGen.get(), &DBAdministration::ExerciseTableGenerator::aliveSignal,
          this, &MainHandler::sendKeepAlive);

  DEBUG_LOG(m_logger) << "Initialise DbAdmin ";
  if (!m_exTblGen->init(m_dbHandler->db()->database(),
                   m_dbHandler->db()->schemaName()))
  {
    ERROR_LOG(m_logger) << "Initialisation dbAdminHandler failed.";
    return false;
  }
  return true;
}

bool MainHandler::initExerciseHandler()
{
  m_handlerExercise.reset(new HandlerExercise(this, m_ddsHandler, m_dbHandler->db(), m_exTblGen));

  DEBUG_LOG(m_logger) << "Initialise ExerciseHandler ";
  if (!m_handlerExercise->init())
  {
    ERROR_LOG(m_logger) << "Initialisation ExerciseHandler failed.";
    return false;
  }

  return true;
}

bool MainHandler::initExercisePhaseHandler()
{
  m_handlerExercisePhases.reset(new HandlerExercisePhase(this, m_ddsHandler, m_dbHandler->db()));

  DEBUG_LOG(m_logger) << "Initialise ExercisePhaseHandler ";
  if (!m_handlerExercisePhases->init())
  {
    ERROR_LOG(m_logger) << "Initialisation ExercisePhaseHandler failed.";
    return false;
  }

  return true;
}

bool MainHandler::initWebSocketHandler()
{
  m_websocketHandler =  std::make_shared<WebSocketInterface::WebSocketInterfaceHandler>(this);
  DEBUG_LOG(m_logger) << "Initialise WebSocketInterfaceHandler";
  if (!m_websocketHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation WebSocketInterfaceHandler failed.";
    return false;
  }

  m_ddsHandler->pacemaker()->addPort(m_websocketHandler->webSocketPort(), Core::PortType::WebSocketServer);

  return true;
}

void MainHandler::sendKeepAlive()
{
  m_ddsHandler->pacemaker()->publishState();
}

} // namespace ExerciseManagement