/**
  * Handler for player data
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by gr, SLSE, 2017-02-20
  */

#include "handler_participant.h"
#include "handler_building_data.h"
#include <ParticipantManagement/ppm_common.h>

#include <LtsCoordTrans/lts_coord_trans.h>
#include <QLineF>

namespace CentralEffectSimulation
{

HandlerParticipant::HandlerParticipant(const std::shared_ptr<DdsHandler> &ddsHandler,
                                       const std::shared_ptr<HandlerBuildingData> &handlerBuildingData,
                                       int cheatingDistanceVehicle,
                                       int cheatingDistanceSoldier,
                                       QObject *parent)
  : QObject(parent)
  , m_ddsHandler(ddsHandler)
  , m_handlerBuildingData(handlerBuildingData)
  , m_cheatingDistanceVehicle(cheatingDistanceVehicle)
  , m_cheatingDistanceSoldier(cheatingDistanceSoldier)
  , m_logger(CentralEffectSimulation::getLogger("HandlerParticipant"))
{
} // end of ctor()
//-----------------------------------------------------------------------------

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

bool HandlerParticipant::init()
{
  auto dtcPpm = m_ddsHandler->dtcPpm();



  INFO_LOG(m_logger) << "m_cheatingDistanceVehicle=" << m_cheatingDistanceVehicle
                     << " m_cheatingDistanceSoldier=" << m_cheatingDistanceSoldier;

  // waitForHistorical...
  dtcPpm->waitForHistoricalDataType(1000);
  dtcPpm->waitForHistoricalDataParticipant(1000);
  dtcPpm->waitForHistoricalDataDynamicParticipantData(1000);
  dtcPpm->waitForHistoricalDataParticipantPosition(1000);


  // connect:
  connect(dtcPpm.get(), &ParticipantManagement::Interface::Dtc::participantPositionChanged,
          this, &HandlerParticipant::onParticipantPositionChanged);
  connect(dtcPpm.get(), &ParticipantManagement::Interface::Dtc::dynamicParticipantDataChanged,
          this, &HandlerParticipant::onDynamicParticipantDataChanged);
  connect(dtcPpm.get(), &ParticipantManagement::Interface::Dtc::participantChanged,
          this, &HandlerParticipant::onParticipantChanged);
  connect(dtcPpm.get(), &ParticipantManagement::Interface::Dtc::typeChanged,
          this, &HandlerParticipant::onTypeChanged);


  // init:
  {
    auto cb = [this](const ParticipantManagement::Type & data)
    {
      onTypeChanged(data, DataModification::eAdded);
    };
    dtcPpm->types(cb);
  }

  {
    auto cb = [this](const ParticipantManagement::Participant & data)
    {
      onParticipantChanged(data, DataModification::eAdded);
    };
    dtcPpm->participants(cb);
  }

  {
    auto cb = [this](const ParticipantManagement::DynamicParticipantData & data)
    {
      onDynamicParticipantDataChanged(data, DataModification::eAdded);
    };
    dtcPpm->dynamicParticipantDatas(cb);
  }

  {
    auto cb = [this](const ParticipantManagement::ParticipantPosition & data)
    {
      onParticipantPositionChanged(data, DataModification::eAdded);
    };
    dtcPpm->participantPositions(cb);
  }

  auto dtcTab = m_ddsHandler->dtcTab();
  dtcTab->enableRestoreRadioReadiness();
  connect(dtcTab.get(), &TrainingAreaBase::Interface::Dtc::restoreRadioReadinessChanged,
          this, &HandlerParticipant::onRestoreRadioReadinessChanged);

  INFO_LOG(m_logger) << "HandlerParticipant::init() finished. "
                     << " m_positionsMap.size(): " << m_positionsMap.size();
  return true;
} // end of init()
//-----------------------------------------------------------------------------

void HandlerParticipant::onParticipantPositionChanged(const ParticipantManagement::ParticipantPosition &data, DataModification modType)
{

  DEBUG_LOG(m_logger) << "onParticipantPositionChanged: " << data;
  if (modType == DataModification::eRemoved)
  {
    DEBUG_LOG(m_logger) << "m_participantsOutsideMap.remove participantId: " << data.participantId;
    //m_participantsOutsideMap.remove(data.participantId);
  }
  else
  {
    ParticipantManagement::TypeClass typeClass = typeClassFromTypeId(data.participantTypeId);
    if (typeClass == ParticipantManagement::TypeClass::SupportEntity
        || typeClass == ParticipantManagement::TypeClass::SupportUnit
        || typeClass == ParticipantManagement::TypeClass::Unit
        || typeClass == ParticipantManagement::TypeClass::Unknown)
      return;

    // [GUEZE-3102] Aufgesessene Teilnehmer bekommen den Schaden vom Fahrzeug, auf dem sie aufgesessen sind.
    if (data.mountedOn.has_value())
      return;
    int floorId = m_handlerBuildingData->getFloorIdFromRoomId(data.roomId);
    int lastFloorId;
    CesParticipantData partPos(data);

    // update LtsPosition/LtsCoordinate: (created as new master, with Z, geo and utm)
    LtsCoordTrans::LtsCoordinate &ltsCoordRef = partPos.ltsCoordinate();
    ltsCoordRef = LtsCoordTrans::LtsCoordinate(data.pos);

    //    ltsPosRef.setGeoPosition(data.pos, 0.0);  // hier wird 0.0 zu NaN umgewandelt ...
    //    ltsPosRef.setZValueAccordingElevation(0.0); // hier wird implizit der LtsElevationManager genutzt
    //    DEBUG_LOG(m_logger) << "-   ltsPosRef: " << ltsPosRef;

    ltsCoordRef.replaceZValueByElevationIfValue(0.0);
    DEBUG_LOG(m_logger) << "-   ltsCoordRef: " << ltsCoordRef;


    bool lastGeoPositionValid = false;
    auto it = m_positionsMap.find(partPos.participantId);
    if (it != m_positionsMap.end())
    {
      const CesParticipantData &partPosOld = *it;
      lastGeoPositionValid = partPosOld.lastPositionValid;
      lastFloorId = m_handlerBuildingData->getFloorIdFromRoomId(partPosOld.roomId);


      partPos.vulnerabilityState = partPosOld.vulnerabilityState;
      partPos.lastGeoPosition = partPosOld.pos; // save previous position
      partPos.lastPositionValid = true;
      if (floorId < 0 )
        partPos.insideBuildingValue = false;
      else
        partPos.insideBuildingValue = true;
      // replace
      *it = partPos;
    }
    else
    {
      INFO_LOG(m_logger) << "m_positionsMap.insert="
                         << partPos;

      m_positionsMap.insert(data.participantId, partPos);
    }
    //
    if (lastGeoPositionValid)
    {
      if (floorId < 0)
      {
        partPos.buildingId = 0;
        partPos.roomId = 0;
        DEBUG_LOG(m_logger) << "emit and insert newOutdoorPosition:"
                            << partPos;
        m_positionsMap.insert(data.participantId, partPos);
        emit newOutdoorPosition(partPos);
        if (lastFloorId > 0)
          emit participantLeavesBuilding(partPos.participantId);
      }
      else
      {
        emit newIndoorPosition(partPos);
      }
    }

    DEBUG_LOG(m_logger) << "checkCheating m_positionsCheatingMap.size=" << m_positionsCheatingMap.size();
    QHashIterator<int, CesParticipantData> i(m_positionsCheatingMap);
    while (i.hasNext())
    {
      i.next();
      DEBUG_LOG(m_logger) << i.key() << ": " << i.value().participantId;
    }
    if (m_positionsCheatingMap.contains(data.participantId))
    {
      DEBUG_LOG(m_logger) << "checkCheatingPosition participantId=" << data.participantId;
      checkCheatingPosition(data.participantId);
    }

    INFO_LOG(m_logger) << "onParticipantPositionChanged()"
                       << " participantId; " << data.participantId
                       << " participantTypeId: " << data.participantTypeId
                       << " partyId: " << data.partyId
                       << " vulnerabilityState: " << partPos.vulnerabilityState
                       << " insideBuilding: " << partPos.insideBuilding();
    INFO_LOG(m_logger) << partPos;

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

void HandlerParticipant::onDynamicParticipantDataChanged(const ParticipantManagement::DynamicParticipantData &data, DataModification modType)
{

  DEBUG_LOG(m_logger) << "onDynamicParticipantDataChanged";
  if (modType == DataModification::eRemoved)
    return;

  CesParticipantData &participantPosition = m_positionsMap[data.participantId];  // reference!
  // save vulnerabilityState in participantHandler
  ProjectDataManagement::VulnerabilityState newVulnerabilityState = ProjectDataManagement::VulnerabilityState::VulnerabilityState_CombatReady;
  if (data.stateHistory.size() > 0)
  {
    const ParticipantManagement::StateInformation &vul = ParticipantManagement::youngestStateInformation(data.stateHistory);
    newVulnerabilityState = vul.vulnerabilityState;
    DEBUG_LOG(m_logger) << "newVulnerabilityState" << vul.vulnerabilityState;

    if (newVulnerabilityState == ProjectDataManagement::VulnerabilityState::VulnerabilityState_CombatReady)
    {
      emit participantDecontaminated(participantPosition.participantId);
      DEBUG_LOG(m_logger) << "emit participantDecontaminated id=" << participantPosition.participantId;
    }
  }
  if (participantPosition.vulnerabilityState != newVulnerabilityState)
  {
    checkCheating(data.participantId, participantPosition, newVulnerabilityState);
    participantPosition.vulnerabilityState = newVulnerabilityState;
    emit newParticipantState(participantPosition);
  }
}

void HandlerParticipant::onParticipantChanged(const ParticipantManagement::Participant &data, DataModification modType)
{

  // Remove Participant:
  if (modType == DataModification::eRemoved || data.isDeleted)
  {
    DEBUG_LOG(m_logger) << "onParticipantChanged m_positionsMap.remove id=" << data.id;
    m_participantData.remove(data.id);
    m_positionsMap.remove(data.id);
    return;
  }

  // No OC in CES
  ParticipantManagement::TypeClass typeClass = typeClassFromTypeId(data.typeId);
  if (typeClass == ParticipantManagement::TypeClass::SupportEntity
      || typeClass == ParticipantManagement::TypeClass::SupportUnit
      || typeClass == ParticipantManagement::TypeClass::Unit
      || typeClass == ParticipantManagement::TypeClass::Unknown)
    return;
  m_participantData[data.id] = data;

  CesParticipantData &pos = m_positionsMap[data.id];
  pos.partyId = data.partyId;
  pos.participantId = data.id;
  pos.participantTypeId = data.typeId;
  DEBUG_LOG(m_logger) << "onParticipantChanged"
                      << " id=" << data.id
                      << " typeId=" << data.typeId
                      << " designator=" << data.designator;
}

void HandlerParticipant::onTypeChanged(const ParticipantManagement::Type &data, DataModification modType)
{

  if (modType == DataModification::eRemoved)
    return;
  m_typeMap.insert(data.id, data.typeClass);
  DEBUG_LOG(m_logger) << "m_typeMap.size()" << m_typeMap.size()
                      << "  equipmentTypeId=" << data.id
                      << "  typeClass=" << data.typeClass;
}

void HandlerParticipant::onRestoreRadioReadinessChanged(const TrainingAreaBase::RestoreRadioReadiness &data, DataModification modType)
{
  // Remove Participant:
  if (modType == DataModification::eRemoved)
  {
    return;
  }

  auto dtcPpm = m_ddsHandler->dtcPpm();
  int participantId = dtcPpm->participantIdByEquipmentNumber(data.equipmentNumber);
  DEBUG_LOG(m_logger) << "onRestoreRadioReadinessChanged"
                      << " data.equipmentNumber=" << data.equipmentNumber
                      << " participantId=" << participantId;
  emit restoreRadioReadinessChanged(participantId);
  auto partPos = m_positionsMap.value(participantId);
  if ( partPos.insideBuilding())
    emit newIndoorPosition(partPos);
  else
  {
    partPos.buildingId = 0;
    partPos.roomId = 0;
    m_positionsMap.insert(participantId, partPos);
    emit newOutdoorPosition(partPos);
  }
}


QPolygonF HandlerParticipant::getParticipantStep(int participantId, int zone) const
{
  QPolygonF result;
  auto it = m_positionsMap.find(participantId);
  if (it == m_positionsMap.end())
    return {};
  const CesParticipantData &partPos = it.value();
  QPointF p1 = CentralEffectSimulation::geographic2Utm(partPos.lastGeoPosition, &zone);
  QPointF p2 = CentralEffectSimulation::geographic2Utm(partPos.pos, &zone);

  //return {CentralEffectSimulation::geographic2Utm(partPos.lastGeoPosition, &zone), CentralEffectSimulation::geographic2Utm(partPos.pos, &zone)};
  result << p1 << p2 ;
  return result;
}

QPointF HandlerParticipant::getParticipantPositionUtm(int participantId, int zone) const
{
  QPointF result = QPointF();

  if (m_positionsMap.contains(participantId))
  {
    const CesParticipantData &partPos = m_positionsMap.value(participantId);
    result  = CentralEffectSimulation::geographic2Utm(partPos.pos, &zone);
  }
  return result;
}


HandlerParticipant::CesParticipantData HandlerParticipant::getParticipantPosition(int participantId) const
{
  return m_positionsMap.value(participantId);
}

QHash<int, HandlerParticipant::CesParticipantData> HandlerParticipant::positionsAircraft() const
{
  QHash<int, HandlerParticipant::CesParticipantData> result;
  for (const HandlerParticipant::CesParticipantData &pos : m_positionsMap)
  {
    ParticipantManagement::TypeClass typeClass = typeClassFromTypeId(pos.participantTypeId);
    if (typeClass != ParticipantManagement::TypeClass::Aircraft)
      continue;
    if (!m_participantData.contains(pos.participantId))
      continue;
    result.insert(pos.participantId, pos);
  }
  return result;
}

QVector<int32_t> HandlerParticipant::getParticipantsBuilding(const int32_t buildingId) const
{
  QVector<int32_t> result;
  DEBUG_LOG(m_logger) << "getParticipantsBuilding:" << buildingId;
  for (const HandlerParticipant::CesParticipantData &pos : m_positionsMap)
  {
    if (buildingId == pos.buildingId)
    {
      DEBUG_LOG(m_logger) << "result.append " << pos.participantId;
      result.append(pos.participantId);
    }
  }
  return result;
}

bool HandlerParticipant::handleCheating(const ParticipantManagement::TypeClass typeClass,
                                        const ProjectDataManagement::VulnerabilityState newVulnerabilityState)
{
  DEBUG_LOG(m_logger) << "handleCheating typeClass=" << typeClass
                      << " newVulnerabilityState=" << newVulnerabilityState;
  // unknown is necessary for the initialization phase
  if (typeClass == ParticipantManagement::TypeClass::Unknown)
  {
    DEBUG_LOG(m_logger) << "handle Cheating for Unknown";
    return true;
  }
  if (typeClass == ParticipantManagement::TypeClass::Human)
  {
    DEBUG_LOG(m_logger) << "handle Cheating for Human";
    if (newVulnerabilityState >= ProjectDataManagement::VulnerabilityState::VulnerabilityState_MediumDamage)
      return true;
  }
  if (typeClass == ParticipantManagement::TypeClass::GroundVehicle
      || typeClass == ParticipantManagement::TypeClass::WeaponSystem
      || typeClass == ParticipantManagement::TypeClass::VehicleWithGear)
  {
    DEBUG_LOG(m_logger) << "handle Cheating for Vehicle";
    if (newVulnerabilityState == ProjectDataManagement::VulnerabilityState::VulnerabilityState_MobilityKill
        || newVulnerabilityState == ProjectDataManagement::VulnerabilityState::VulnerabilityState_VisibleMobilityKill)
      return true;
  }
  return false;
}

// if no participantPosition has yet arrived, the participantId in participantPosition is 0
void HandlerParticipant::checkCheating(const int participantId,
                                       const CesParticipantData &participantPosition,
                                       const ProjectDataManagement::VulnerabilityState newVulnerabilityState)
{
  DEBUG_LOG(m_logger) << "checkCheating state =" <<  newVulnerabilityState
                      << " participantId=" << participantId;
  if (!m_typeMap.contains(participantPosition.participantTypeId))
    WARNING_LOG(m_logger) << "!m_typeMap.contains(" << participantPosition.participantTypeId << ")";
  ParticipantManagement::TypeClass typeClass =  m_typeMap[participantPosition.participantTypeId];

  if (handleCheating(typeClass, newVulnerabilityState))
  {
    if (!m_positionsCheatingMap.contains(participantId))
    {
      DEBUG_LOG(m_logger) << "checkCheating insert id= " << participantId;
      m_positionsCheatingMap.insert(participantId, participantPosition);
    }
  }
  else
  {
    if (newVulnerabilityState == ProjectDataManagement::VulnerabilityState::VulnerabilityState_CombatReady)
    {
      DEBUG_LOG(m_logger) << "checkCheating remove id= " << participantId;
      m_positionsCheatingMap.remove(participantId);
    }
  }
}

void HandlerParticipant::checkCheatingPosition(const int participantId)
{
  DEBUG_LOG(m_logger) << "checkCheatingPosition id= " << participantId;
  CesParticipantData posMobilityKill = m_positionsCheatingMap[participantId];
  CesParticipantData posActual = m_positionsMap[participantId];
  ParticipantManagement::TypeClass typeClass =  m_typeMap[participantId];

  if (!posActual.insideWlsArea())
  {
    DEBUG_LOG(m_logger) << "position participantId=" << participantId << " not insideWlsArea";
    return;
  }

  // Check, if valid position is available
  if (posMobilityKill.participantId == 0)
  {
    DEBUG_LOG(m_logger) << "position participantId=" << participantId << " not valid";
    m_positionsCheatingMap.insert(participantId, posActual);
    return;
  }

  QPointF posUtmMobilityKill = CentralEffectSimulation::geographic2Utm(posMobilityKill.pos);
  QPointF posUtmActual = CentralEffectSimulation::geographic2Utm(posActual.pos);
  DEBUG_LOG(m_logger) << "posUtmMobilityKill=" << posUtmMobilityKill.rx() << "/" << posUtmMobilityKill.ry();
  DEBUG_LOG(m_logger) << "posUtmActual=" << posUtmActual.rx() << "/" << posUtmActual.ry();

  qreal distance = QLineF(posUtmMobilityKill,  posUtmActual).length();
  int cheatingDistance;
  if (typeClass == ParticipantManagement::TypeClass::Human)
    cheatingDistance = m_cheatingDistanceSoldier;
  else
    cheatingDistance = m_cheatingDistanceVehicle;
  DEBUG_LOG(m_logger) << "distance=" << distance;
  if (distance > cheatingDistance)
  {
    DEBUG_LOG(m_logger) << " Send Manipulation to id= and save new Cheating Position" << participantId;
    m_positionsCheatingMap.insert(participantId, posActual);
    sendBeStillWarning(participantId);
  }

}

void HandlerParticipant::onSendParticipantBeStillWarningReply(const Core::FunctionReplyObject &replyObject)
{
  //if (replyObject.error())
  //  WARNING_LOG(m_logger) << "Can not send hit on participant to training area: " << replyObject();
  //else
  DEBUG_LOG(m_logger) << "onSendParticipantBeStillWarningReply for id " << replyObject.id() << " success";
}

void HandlerParticipant::sendBeStillWarning(const int32_t participantId)
{
  TrainingAreaBase::SendParticipantBeStillWarningRequest pba;
  pba.equipmentNumber = m_ddsHandler->participantId2EquipNo(participantId);
  pba.participantId = participantId;
  pba.data = 0;
  m_ddsHandler->ftcTab()->sendParticipantBeStillWarningRequest(pba, this);
}

void HandlerParticipant::onModifyStateReply(const Core::FunctionReplyObject &reply)
{
  if (reply.error())
    ERROR_LOG(m_logger) << "onModifyStateReply for id " << reply.id() << " failure";
  else
    DEBUG_LOG(m_logger) << "onModifyStateReply for id " << reply.id() << " success";
}

void HandlerParticipant::modifyStateRequest(
  const int &participantId, const ProjectDataManagement::VulnerabilityState &state, const int &kind, const int &vitality
)
{
  std::vector<int32_t> participantIds;
  participantIds.push_back(participantId);
  ParticipantManagement::ModifyStateRequest msr;
  msr.participantIds = participantIds;
  msr.vulnerabilityState = state;
  msr.vulnerabilityKind = kind;
  msr.vitality = vitality;
  m_ddsHandler->ftcPpm()->modifyStateRequest(msr, this);
}

long HandlerParticipant::getDirection(int originatorParticipantId, int targetParticipantId)
{
  CesParticipantData originatorPos = m_positionsMap[originatorParticipantId];
  CesParticipantData targetPos = m_positionsMap[targetParticipantId];
  const Core::GeoPosition2D originatorGeoPos = originatorPos.pos;
  const Core::GeoPosition2D targetGeoPos = targetPos.pos;

  int zone = -1;

  const QPointF originatorPosUtm = CentralEffectSimulation::geographic2Utm(originatorGeoPos, &zone);
  const QPointF targetPosUtm = CentralEffectSimulation::geographic2Utm(targetGeoPos, zone);
  const QLineF line(originatorPosUtm, targetPosUtm);
  DEBUG_LOG(m_logger) << "originatorPosUtm=" << originatorPosUtm.x() << " / " << originatorPosUtm.y();
  DEBUG_LOG(m_logger) << "targetPosUtm=" << targetPosUtm.x() << " / " << targetPosUtm.y();

  DEBUG_LOG(m_logger) << "getDirection=" << (static_cast<int>(line.angle()) + 270) % 360 * 100;


  return (static_cast<long>(line.angle()) + 270) % 360 * 100;
}

long HandlerParticipant::getDistance(int originatorParticipantId, int targetParticipantId)
{
  CesParticipantData originatorPos = m_positionsMap[originatorParticipantId];
  CesParticipantData targetPos = m_positionsMap[targetParticipantId];
  const Core::GeoPosition2D originatorGeoPos = originatorPos.pos;
  const Core::GeoPosition2D targetGeoPos = targetPos.pos;

  int zone = -1;

  const QPointF originatorPosUtm = CentralEffectSimulation::geographic2Utm(originatorGeoPos, &zone);
  const QPointF targetPosUtm = CentralEffectSimulation::geographic2Utm(targetGeoPos, zone);
  const QLineF line(originatorPosUtm,  targetPosUtm);

  DEBUG_LOG(m_logger) << "getDistance=" << line.length();

  return static_cast<int>(line.length());
}

int HandlerParticipant::getParticipantId(int equipentNumber)
{
  // QHash<int, ParticipantManagement::Participant> m_participantData;

  QHashIterator<int, ParticipantManagement::Participant> i(m_participantData);
  while (i.hasNext())
  {
    i.next();
    if (i.value().equipmentNumber == equipentNumber)
      return i.value().id;
  }
  return 0;
}

int HandlerParticipant::getEquipmentNumber(int participantId) const
{
  return m_ddsHandler->participantId2EquipNo(participantId);
}

void HandlerParticipant::setNotfightMode ( const int participantId, const bool notfightMode)
{
  CesParticipantData participantData = m_positionsMap.value(participantId);
  participantData.notfightMode = notfightMode;
  INFO_LOG(m_logger) << "setNotfightMode m_positionsMap.insert="
                     << participantData;
  m_positionsMap.insert ( participantId,participantData );
  emit newNotfightMode(participantData);
}


std::ostream &operator<<(std::ostream &stream,
                         const HandlerParticipant::CesParticipantData &value)
{
  stream << "CesParticipantData("
         << ", lastGeoPosition   = " << value.lastGeoPosition
         << ", lastPositionValid = " << value.lastPositionValid
         << ", ltsCoordinate     = " << value.ltsCoordinate()
         << ", insideWlsArea     = " << value.insideWlsArea()
         << ", insideBuilding    = " << value.insideBuilding()
         << ", buildingId        = " << value.buildingId
         << ", notfightMode      = " << value.notfightMode
         << ", partyId           = " << value.partyId
         << ", vulnerabilityState= " << value.vulnerabilityState
         << ", participantTypeId = " << value.participantTypeId
         << ", participantId     = " << value.participantId
         << ")";
  return stream;
}


} // namespace CentralEffectSimulation