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

#include "main_handler.h"

#include "asset_assignment_manager.h"
#include "av_control.h"
#include "fm_control.h"
#include "exercises_handler.h"
#include "dds_handler.h"
#include "handler_menu_struct.h"
#include "handler_frequency_planning_status.h"
#include "tvc_handler.h"
#include "cnr_handler.h"
#include "frequency_set_handler.h"
#include "frequency_planning_handler.h"
#include "cnr_tvc_profile_handler.h"
#include "active_exercises.h"
#include "stream_name_mapping_publisher.h"
#include "settings.h"
#include "handler_video_team.h"
#include "handler_video_receiver.h"

#include <avm_dts.h>
#include <avm_fts.h>

#include <nglsettings/nglsettings_connections.h>
#include <DDS/DDSConnector/dds_connector.h>
#include <ngldb/db_service_handler.h>

#include <Core/pacemaker.h>

using namespace AudioVideoManagement;

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

MainHandler::~MainHandler() = default;

bool MainHandler::init(int domainId)
{
  // initialize database
  m_dbHandler.reset(new DbHandler());
  if (!m_dbHandler->init(0, Settings::settings()))
  {
    ERROR_LOG(m_logger) << "Initialisation dbHandler failed.";
    return false;
  }
  m_dbInterface = m_dbHandler->db();

  // initialize DDS
  m_ddsHandler.reset(new DdsHandler(domainId));
  if (!m_ddsHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation ddsHandler failed.";
    return false;
  }

  m_avControl.reset(new AVControl(NGL::Connections::hostName(NGL::Connections::eConnection::AVS_ROOT),
                                  NGL::Connections::port(NGL::Connections::eConnection::AVS_ROOT)));
  m_avControl->connectToAVS();

  m_fmControl.reset(new FMControl(NGL::Connections::hostName(NGL::Connections::eConnection::AVS_FM),
                                  NGL::Connections::port(NGL::Connections::eConnection::AVS_FM)));
  m_fmControl->connectToAVS();


  // The ExercisesHandler must be initialized *before* Tvc- and CnrHandler
  // as the ExercisesHandler clears (and refills) the device_config.
  // Tvc- and CnrHandler also fill the device_config.
  m_exHandler.reset(new ExercisesHandler(this));
  // init() called below...

  m_activeExercises.reset(new ActiveExercises(m_exHandler.get()));

  m_videoTeamHandler.reset(new HandlerVideoTeam(m_ddsHandler->dts(), m_ddsHandler->fts(), m_dbInterface.get(), m_activeExercises.get()));
  connect(m_videoTeamHandler.get(), &HandlerVideoTeam::avDbReloadNeeded, m_exHandler.get(), &ExercisesHandler::onAvDbReloadNeeded);
  if (!m_videoTeamHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation HandlerVideoTeam failed.";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

  m_frequencyPlanningStatusHandler.reset(new HandlerFrequencyPlanningStatus(m_ddsHandler->dts(), m_ddsHandler->fts(), m_dbInterface.get()));
  if (!m_frequencyPlanningStatusHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation HandlerFrequencyPlanningStatus failed.";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

  // init() called here as it requires the HandlerVideoTeam which can only be created after ExercisesHandler
  if (!m_exHandler->init())
    return false;


  m_menuStructHandler.reset(new HandlerMenuStruct(m_ddsHandler->dts(), m_ddsHandler->fts(), m_dbInterface.get()));
  if (!m_menuStructHandler->init())
    return false;

  m_tvcHandler.reset(new TvcHandler(m_ddsHandler->dts(), m_ddsHandler->fts(), m_dbInterface.get(), m_activeExercises.get()));
  connect(m_tvcHandler.get(), &TvcHandler::avDbReloadNeeded, m_exHandler.get(), &ExercisesHandler::onAvDbReloadNeeded);
  if (!m_tvcHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation tvcHandler failed";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

  m_frequencySetHandler.reset(new FrequencySetHandler(m_ddsHandler->dts(), m_dbInterface.get()));
  if (!m_frequencySetHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation FrequencySetHandler failed";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

  m_frequencyPlanningHandler.reset(new FrequencyPlanningHandler(m_ddsHandler->dts(), m_ddsHandler->fts(), m_dbInterface.get(), m_frequencySetHandler.get(), m_activeExercises.get()));
  // init() done below because there is a circular dependency with CnrHandler

  m_cnrHandler.reset(new CnrHandler(m_ddsHandler->dts(), m_ddsHandler->fts(), m_ddsHandler->ismDtc(), m_frequencyPlanningHandler.get(), m_dbInterface.get(), m_activeExercises.get()));
  connect(m_cnrHandler.get(), &CnrHandler::avDbReloadNeeded, m_exHandler.get(), &ExercisesHandler::onAvDbReloadNeeded);

  m_frequencyPlanningHandler->setCnrHandler(m_cnrHandler.get());
  if (!m_frequencyPlanningHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation FrequencyPlanningHandler failed";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

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

  m_cnrTvcProfileHandler.reset(new CnrTvcProfileHandler(m_dbInterface.get(), m_ddsHandler->dts(), m_ddsHandler->fts(), m_cnrHandler.get(), m_tvcHandler.get()));
  if (!m_cnrTvcProfileHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation RadioCircuitsHandler failed";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }

  m_streamNameMappingPublisher.reset(new StreamNameMappingPublisher(m_ddsHandler->ismDtc(), m_ddsHandler->dts()));

  // initialize handler video receiver
  m_videoReceiverHandler.reset(new HandlerVideoReceiver(this, m_ddsHandler->dts(), m_ddsHandler->fts(), m_dbInterface.get()));
  if (!m_videoReceiverHandler->init())
  {
    ERROR_LOG(m_logger) << "Initialisation HandlerVideoReceiver failed.";
    m_ddsHandler->pacemaker()->setNewState(Core::RunningState::StartingError);
    return false;
  }



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

  return true;
}

int MainHandler::exerciseId()
{
  if (ddsHandler())
    return ddsHandler()->ddsConnector()->getPartitionId();
  return -1;
}