/**
  * Handle Participants which are available in the system (map between Wls id and ParticipantId)
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by Christian Ehrlicher, SLSE, 2017-01-10
  */

#include "wls_participant_handler.h"
#include "web_socket_handler.h"
#include "wls_handler.h"

#include <QDateTime>

namespace WirelessLocationSystem
{
WlsParticipantHandler::WlsParticipantHandler(QObject *parent)
  : QObject(parent)
  , m_gpsOnOffTimeoutTimer(new QTimer(this))
  , m_logger(getLogger("WlsParticipantHandler"))
{
  connect(m_gpsOnOffTimeoutTimer, &QTimer::timeout, this, &WlsParticipantHandler::onGpsOnOffTimeoutTimer);
  m_gpsOnOffTimeoutTimer->setSingleShot(false);
  m_gpsOnOffTimeoutTimer->start(1000);
}

WlsParticipantHandler::~WlsParticipantHandler()
{
  qDeleteAll(m_participantsByEqId);
}

void WlsParticipantHandler::init(WebSocketHandler *wsHandler,
                                 WlsHandler *wlsHandler)
{
  m_wsHandler = wsHandler;
  m_wlsHandler = wlsHandler;
}

WlsParticipant *WlsParticipantHandler::createNewParticipant(const QByteArray &tagId)
{
  delete m_participantsByTagId.take(tagId);
  WlsParticipant *p = new WlsParticipant;
  connect(p, &WlsParticipant::gpsOnOffChanged,
          m_wlsHandler, &WlsHandler::sendGpsMode);
  connect(p, &WlsParticipant::dataForWls,
          m_wlsHandler, QOverload<const WlsParticipant *,const SfmMessage_tx &>::of(&WlsHandler::sendWlsMessage));
  connect(p, &WlsParticipant::gpsOnOffChanged,
          m_wsHandler, &WebSocketHandler::sendGpsPositionUsage);
  connect(p, &WlsParticipant::positionChanged,
          m_wsHandler, &WebSocketHandler::sendPosition);
  connect(p, &WlsParticipant::wlsBinarySfmDataComplete,
          m_wsHandler, &WebSocketHandler::sendBinarySfmData);
  connect(p, &WlsParticipant::dataCommunicationStateChanged,
          m_wsHandler, &WebSocketHandler::sendDataCommunicationState);

  p->m_tagId = tagId;
  m_participantsByTagId[tagId] = p;
  return p;
}

void WlsParticipantHandler::setEquipmentNumber(WlsParticipant *participant, int equipmentNumber)
{
  participant->setExerciseId(m_equipNo2ExerciseId.value(equipmentNumber));

  auto it = m_participantsByEqId.find(participant->equipmentNumber());
  // remove old assignment
  if (it != m_participantsByEqId.end())
    m_participantsByEqId.erase(it);

  participant->setEquipmentNumber(equipmentNumber);
  m_participantsByEqId[equipmentNumber] = participant;
}

WlsParticipant *WlsParticipantHandler::participantByTagId(const QByteArray &tagId) const
{
  return m_participantsByTagId.value(tagId);
}

void WlsParticipantHandler::exerciseEquipmentAssignmentChanged(const std::unordered_map<int, std::unordered_set<int>> &eea)
{
  m_equipNo2ExerciseId.clear();
  for (const auto &itEx : eea)
  {
    const int curExerciseId = itEx.first;
    const auto &assignment = itEx.second;
    for (int eqId : assignment)
    {
      m_equipNo2ExerciseId[eqId] = curExerciseId;
      WlsParticipant *p = m_participantsByEqId.value(eqId);
      if (!p)
        continue;
      p->setExerciseId(curExerciseId);
    }
  }
}

void WlsParticipantHandler::handleWlsBinarySfmData(const TrainingAreaBase::TetraIcd::WlsBinarySfmData &data)
{
  WlsParticipant *p = m_participantsByEqId.value(data.header.equipmentNumber);
  if (!p)
  {
    WARNING_LOG(m_logger) << "Got binary sfm data for participant with eqId " << data.header.equipmentNumber
                          << " but could not find this participant!";
    return;
  }
  p->sendBinarySfmData(data.payload);
}

void WlsParticipantHandler::onGpsOnOffTimeoutTimer()
{
  const qint64 tNow = QDateTime::currentMSecsSinceEpoch();
  for (WlsParticipant *p : qAsConst(m_participantsByTagId))
    p->checkGpsOnOffTimeoutTimer(tNow);
}

} // namespace WirelessLocationSystem