/**
  * Handler for player data
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by hjl, SLSE, 2016-07-05
  */

#include "handler_participant_data.h"
#include "settings.h"

#include <QSet>

using namespace VideoOverlayManagement;

HandlerParticipantData::HandlerParticipantData(const std::shared_ptr<DdsHandler> &ddsHandler, QObject *parent)
  : QObject(parent)
  , m_ddsHandler(ddsHandler)
  , m_logger(getLogger("HandlerParticipantData"))
{
} // end of ctor()
//-----------------------------------------------------------------------------

HandlerParticipantData::~HandlerParticipantData()
{
} // end of dtor()
//-----------------------------------------------------------------------------

bool HandlerParticipantData::init()
{
  // DTC ParticipantManagement
  m_dtc = ParticipantManagement::Interface::Dtc::create(m_ddsHandler->dds());
  if (m_dtc == nullptr)
  {
    ERROR_LOG(m_logger) << "Could not create DTC ParticipantManagement";
    return false;
  }

  // only subscribe to the topics we're interested in
  if (!m_dtc->enableParticipant() || !m_dtc->enableParticipantPosition())
  {
    ERROR_LOG(m_logger) << "init() DTC ParticipantManagement failed";
    return false;
  }

  // Get 'static' data for all participants (playerdata)
  // Subsribe for ParticipantChanged
  connect(m_dtc.get(), &ParticipantManagement::Interface::Dtc::participantChanged,
          this, &HandlerParticipantData::onParticipantChanged);
  // Player in Referenzmap eintragen
  m_dtc->participants([this](const ParticipantManagement::Participant &p) { onParticipantChanged(p, DataModification::eAdded);});

  // Get last position ('dynamic' data) of all participants
  // Subsribe for participantPositionChanged
  connect(m_dtc.get(), &ParticipantManagement::Interface::Dtc::participantPositionChanged,
          this, &HandlerParticipantData::onParticipantPositionChanged);
  // Position in ParticipantsPositionMap eintragen
  auto cbParticipantPos = [this](const ParticipantManagement::ParticipantPosition &participantPos)
  {
    m_participantsPositionMap.insert(participantPos.participantId(), participantPos.roomId());
  };
  m_dtc->participantPositions(cbParticipantPos);

  INFO_LOG(m_logger) << "HandlerParticipantData::init() finished. "
                     << " m_partId2EquipNoMap.size(): " << m_partId2EquipNoMap.size()
                     << " m_participantsPositionMap.size(): " << m_participantsPositionMap.size();
  return true;
} // end of init()
//-----------------------------------------------------------------------------

int HandlerParticipantData::getEquipmentNumber(int participantId) const
{
  return m_partId2EquipNoMap.value(participantId);
} // end of getEquipmentNumber()
//-----------------------------------------------------------------------------

QMap<int, int> HandlerParticipantData::getAllAssignedParticipants() const
{
  QMap<int, int> qMap;
  for (auto i = m_participantsPositionMap.begin(); i != m_participantsPositionMap.end(); ++i)
  {
    if (i.value() > 0)
      qMap.insert(i.key(), i.value());
  }
  return qMap;
} // end of getAllAssignedParticipants()
//-----------------------------------------------------------------------------

void HandlerParticipantData::onParticipantChanged(const ParticipantManagement::Participant &data, DataModification modType)
{
  INFO_LOG(m_logger) << "onParticipantChanged() participantId:" << data.id();

  if (modType != DataModification::eRemoved && data.equipmentNumber().is_set())
    m_partId2EquipNoMap.insert(data.id(), data.equipmentNumber().get());
  else
    m_partId2EquipNoMap.remove(data.id());

  if (m_logger.isDebugEnabled())
  {
    for (auto i = m_partId2EquipNoMap.begin(); i != m_partId2EquipNoMap.end(); ++i)
      DEBUG_LOG(m_logger) << " partId2EquipNoMap.size(): " << m_partId2EquipNoMap.size()
                          << " partId: " << i.key()
                          << " eqNo: " << i.value();
  }
} // end of onParticipantChanged()
//-----------------------------------------------------------------------------

void HandlerParticipantData::onParticipantPositionChanged(const ParticipantManagement::ParticipantPosition &data, DataModification modType)
{
  const int newRoomId = data.roomId();
  // get reference to room (will be created if not exist)
  int &roomId = m_participantsPositionMap[data.participantId()];
  // remember old room
  const int oldRoomId = roomId;
  // assing new room
  roomId = modType == DataModification::eRemoved ? 0 : newRoomId;
  if (newRoomId != oldRoomId)
    emit participantPositionChanged(oldRoomId, newRoomId, data.participantId());

  INFO_LOG(m_logger) << "onParticipantPositionChanged()"
                     << " oldRoomId: " << oldRoomId
                     << " newRoomId: " << newRoomId
                     << " participantId: " << data.participantId();

  if (modType == DataModification::eRemoved)
    m_participantsPositionMap.remove(data.participantId());

} // end of onParticipantPositionChanged()
//-----------------------------------------------------------------------------