/**
  * @RDE_HEADER@
  * Interface
  * $Id$
  * $HeadURL$
  * $Author$
  */

// Own
#include "buildings_to_map.h"
#include <Map/object_factory.h>

#include <LtsCoordTrans/lts_coord_trans.h>
#include <MathUtils/simple_helper.h>
#include <Common/PluginInterfaces/gui_plugin_interface.h> // for method "getForeignGuiInterface"
#include <Plugins/Buildings/bld_info_gui_plugin_interface.h> // for Buildings::ForeignInfoGuiInterface
#include <ProjectDataManagement/pdm_to_string.h>
#include <InfrastructureManagement/ism_resource_management_gui_plugin_interface.h>

// Qt
#include <QPolygonF>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonParseError>

namespace SituationMap
{

int32_t Building2SituationMap::getSimId(const Sim2SituationMap::DDS_T &ddsData) const
{
  return ddsData.id();
}

bool Building2SituationMap::init(PluginProvider *pluginProvider, bool enableDamageVisualization)
{
  if (!pluginProvider ||
      !pluginProvider->ismDtc())
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no pluginProvider";
    return false;
  }

  m_enableDamageVisualization = enableDamageVisualization;

  m_pluginProvider = pluginProvider;
  m_ismDtc = pluginProvider->ismDtc();
  // optional
  m_ismGuiIfc = pluginProvider->ismGuiIfc();
  m_bldDtc = pluginProvider->bldDtc();

  m_bldInfoIfc = pluginProvider->bldInfoIfc();

  // FilterManagement:
  FilterClass::init(m_pluginProvider);

  return true;
}

bool Building2SituationMap::run()
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START";
  if (!m_ismDtc)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " no dtc";
    return false;
  }

  m_mseIdWithoutValidFootprint.clear();


  // mainStructureElement
  connect(m_ismDtc.get(), &InfrastructureManagement::Interface::Dtc::mainFootprintChanged,
          this, &Building2SituationMap::onMainFootprintChanged);


  // mainStructureElement
  connect(m_ismDtc.get(), &InfrastructureManagement::Interface::Dtc::mainStructureElementChanged,
          this, &Building2SituationMap::onMainStructureElementChanged);

  // get:
  m_ismDtc->mainStructureElements([this](const InfrastructureManagement::MainStructureElement & data)
  {
    onMainStructureElementChanged(data, DataModification::eAdded);
  });

  if (m_bldDtc)
    connect(m_bldDtc.get(), &Buildings::Interface::Dtc::buildingStateChanged,
            this, &Building2SituationMap::onBuildingStateChanged);

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool Building2SituationMap::isElapsed(const InfrastructureManagement::MainStructureElement &ddsData) const
{
  if (BaseClass::isElapsed(ddsData))
    return true;

  // skip MeteoDataUnit, RadioStation because they don´t have a footprint
  // avoid something like: mainFootprint with id=" << mseId << " is not sufficiant."
  const InfrastructureManagement::StructureElementType::inner_enum set = ddsData.structureElementTypeId().underlying();
  if ((set == InfrastructureManagement::StructureElementType_def::MeteoDataUnit) ||
      (set == InfrastructureManagement::StructureElementType_def::RadioStation) ||
      (set == InfrastructureManagement::StructureElementType_def::ApproachingPoint)
     )
    return true;


  //  // skip MeteoDataUnit, because they don´t have a footprint
  //  const auto &elements = ddsData.elements();
  //  if (elements.size() < 1)
  //    return false;

  //  const InfrastructureManagement::StructureElement &element = elements.at(0);
  //  const InfrastructureManagement::MountingPointType& mpt = element.mountingPointTypeId();
  //  if (mpt == InfrastructureManagement::MountingPointType_def::MeteoDataUnit)
  //    return true;

  //  return false;


  const qint32 mseId = ddsData.id();
  const InfrastructureManagement::MainFootprint &mainFootprint = m_ismDtc->mainFootprint(mseId);
  if (mainFootprint.elements().size() < 3)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " mainFootprint with id=" << mseId << " is not sufficiant."
                        << " mainFootprint.elements().size() = " << mainFootprint.elements().size();
    if (!m_mseIdWithoutValidFootprint.contains(mseId))
    {
      INFO_LOG(m_logger) << LOGFUNCTION << " Save for future mainFootPrintChanged..."
                         << " (m_mseIdWithoutValidFootprint.size()=" << m_mseIdWithoutValidFootprint.size();
      m_mseIdWithoutValidFootprint.append(mseId);
    }
    return true;
  }
  return false;
}

bool Building2SituationMap::mapObjectsClicked(const QVector<UniqueMapId> &uniqueMapIds)
{
  if (!m_bldInfoIfc)
    return false;

  const QVector<int32_t> &simIds = uniqueMapIds2SimIds(uniqueMapIds);
  if (simIds.isEmpty())
    return true;

  // SWPÄ 2/22: buildingOutline are also visible.
  // But do not open a bunch of bldgInfoWindows while selectByArea at MountingPointListDialog
  // is optional so check in advance!
  if (m_ismGuiIfc && m_ismGuiIfc->isInSelectionMode())
    return true;
  m_bldInfoIfc->showInfoWindow(simIds);

  return true;
}

bool Building2SituationMap::unifiedMapObjectData(UniqueMapId uniqueMapId, UnifiedMapObjectData &umodOut) const
{
  if (!m_ismDtc)
    return false;

  int32_t buildingId = -1;
  if (!this->uniqueMapId2SimId(uniqueMapId, buildingId))
    return false;

  umodOut = UnifiedMapObjectData();
  umodOut.m_participantData.m_typeName = tr("Building");
  umodOut.m_buildingData.buildingId = buildingId;
  RefPointer<MAP_T> mapObj = this->getMapObjectOfUniqueMapId(uniqueMapId);
  if (mapObj.valid())
    umodOut.m_image = mapObj->previewImage();
  if (m_bldDtc)
  {
    const Buildings::BuildingState &bldgState = m_bldDtc->buildingState(buildingId);
    if (bldgState.id() == buildingId)
    {
      umodOut.m_participantData.m_vulnerabilityState = bldgState.vulnerabilityState().underlying();
      umodOut.m_participantData.m_vulnerabilityString = ProjectDataManagement::toString(bldgState.vulnerabilityState());
    }
  }

  umodOut.m_description1 = m_ismDtc->getBuildingDisplayName(buildingId);
  return true;

}


void Building2SituationMap::onMainStructureElementChanged(const InfrastructureManagement::MainStructureElement &data,
                                                          DataModification modType)
{
  const bool isResourceMgr = m_pluginProvider->appId() == LtsAppDescriptor::App::ResourceManager;
  bool assignedToExercise = isResourceMgr || (m_ismDtc->isElementAssignedToExercise(data, m_pluginProvider->exerciseId()));

  if (modType == DataModification::eAdded && !assignedToExercise)
    return;

  if (modType == DataModification::eModified && !assignedToExercise)
  {
    /*
     * Was mse assigned to this exercise but someone removed the assignment?
     * If yes, remove mse from situation map by changing the request to "eRemoved".
     * If no, simply ignore the assignment.
     */
    const int32_t simId = getSimId(data);

    if (m_simId2UniqueMapId.contains(simId))
      modType = DataModification::eRemoved;
    else
      return;
  }

  handleChanged(data, modType);
}

void Building2SituationMap::onMainFootprintChanged(const InfrastructureManagement::MainFootprint &data, DataModification modType)
{
  if (modType == DataModification::eRemoved)
    return;
  if (data.elements().size() < 3)
    return;

  const int32_t mseId = data.id(); // mfpId == mseId
  if (m_mseIdWithoutValidFootprint.contains(mseId))
  {
    // try again:
    const InfrastructureManagement::MainStructureElement &mseData = m_ismDtc->mainStructureElement(mseId);
    if (mseData.id() == mseId)
    {
      m_mseIdWithoutValidFootprint.removeAll(mseId);
      onMainStructureElementChanged(mseData, DataModification::eAdded);
    }
  }
}

void Building2SituationMap::onBuildingStateChanged(const Buildings::BuildingState &data, DataModification modType)
{
  Q_UNUSED(modType);

  if (!m_enableDamageVisualization)
    return;

//  if (modType == DataModification::eRemoved)
//    return;

  const int buildingId = data.id(); // simId;

  auto it = m_simId2UniqueMapId.constFind(buildingId);
  if (it == m_simId2UniqueMapId.constEnd())
    return;  // maybe not assigned to out exercise?

  // retrieve mapObj
  const UniqueMapId uniqueMapId = it.value();
  RefPointer<Sim2SituationMap::MAP_T> mapObj = m_objFac.get<Sim2SituationMap::MAP_T>(uniqueMapId);

  if (!mapObj)
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " not found in objFac"
                        << " simId/buildingId = " << buildingId
                        << " uniqueMapId = " << uniqueMapId ;
    return;
  }

  if (!updateBldgDamage(mapObj, buildingId))
  {
    ERROR_LOG(m_logger) << LOGFUNCTION << " updateBldgDamage failed, "
                        << " simId/buildingId = " << buildingId
                        << " uniqueMapId = " << uniqueMapId;
    return;
  }

  if (!mapObj->updateView())
    WARNING_LOG(m_logger) << LOGFUNCTION << " updateView failed,"
                          << " mapObj = " << mapObj->debugInfo();

}



bool Building2SituationMap::updateElementImpl(const Sim2SituationMap::DDS_T &ddsData,
                                              RefPointer<MAP_T> mapObj)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START"
                      << " id=" << ddsData.id()
                      << " name=" << ddsData.name()
                      << " geoPosition=" << ddsData.geoPosition()
                      << " angle=" << ddsData.angle();

  // typically, building are filled with gray. But the MapObjectIndicator is hard to see.
  // so force a different color here:
  mapObj->setForceMajorColor(Qt::black);

  // show just the ObjectAppearance::Technical
  mapObj->setVisibility(ObjectAppearance::Tactical, false);

  const qint32 buildingId = getSimId(ddsData); // ddsData.id();

  //
  // retrieve absolut utm points of footprint (angle is already taken into account)
  //
  int zoneOut = -1;
  bool isGroundLevel = false;
  const QPolygonF &absUtmPositions2D = m_ismDtc->getUtmFootprintById(buildingId, zoneOut, isGroundLevel);

  const Core::GeoPosition &geoPosition = ddsData.geoPosition();
  const QPointF referencePointGeo(geoPosition.lon(), geoPosition.lat());

  // utmPos -> geoPos
  PositionCont absPositionsGeo;
  absPositionsGeo.reserve(absUtmPositions2D.size());
  for (const QPointF &absPosition : qAsConst(absUtmPositions2D))
  {
    const LtsCoordTrans::UtmCoordinate utmPos(zoneOut, absPosition.x(), absPosition.y());
    const QPointF &pGeo = utmPos.geographic();
    absPositionsGeo.append(Point3D::fromQPointF(pGeo));
  } // for

  DEBUG_LOG(m_logger) << "absPositionsGeo = " << absPositionsGeo;

  mapObj->setPositions(absPositionsGeo);

  // Identifier: Many buildings in a city lead to many (unreadable) identifiers -> filter flag is introduced
  TextStyle ts = mapObj->textStyle();
  ts.setHorizontalAlignment(HorizontalAlignment::Center);
  mapObj->setTextStyle(ts);
  // mapObj->setIdentifier(QString::fromStdString(ddsData.name()));
  mapObj->setIdentifier(m_ismDtc->getBuildingDisplayName(ddsData));

  if (m_enableDamageVisualization && m_bldDtc)
  {
    // set FillStyle according damage
    updateBldgDamage(mapObj, buildingId);
  }

  // display referencePoint:
  mapObj->setMarker(Point3D::fromQPointF(referencePointGeo));

  TRACE_LOG(m_logger) << LOGFUNCTION << " END";
  return true;
}

bool Building2SituationMap::updateBldgDamage(RefPointer<MAP_T> mapObj, qint32 buildingId)
{
  TRACE_LOG(m_logger) << LOGFUNCTION << " START, buildingId=" << buildingId;

  if (!m_bldDtc)
    return false;

  if (!mapObj)
    return false;

  const Buildings::BuildingState &bldgState = m_bldDtc->buildingState(buildingId);
  const bool bIsContaminated = !bldgState.contaminationStates().empty();

  // LineStyle
  LineStyle ls = mapObj->lineStyle();
  if (bIsContaminated)
    ls.setLineColor(Qt::yellow);
  else
    ls.setLineColor(Qt::black);
  mapObj->setLineStyle(ls);

  // FillStyle
  FillStyle fs = mapObj->fillStyle();
  fs.setFillPattern(FillPattern::Solid);

  int damagePercent = bldgState.damagePercent();

  // Not found -> assume no damage
  // In case of replay destruction, do not return false
  if (bldgState.id() != buildingId)
  {
    DEBUG_LOG(m_logger) << LOGFUNCTION << " simId/buildingId = " << buildingId
                        << " not found!! (mapObj = " << mapObj->debugInfo() << ")";
    damagePercent = 0;
  }

  double opacity = 1.0;

  if (damagePercent < 1)
    opacity = 0.0;
  else if (damagePercent < 20)
    opacity = 0.2;
  else if (damagePercent < 40)
    opacity = 0.4;
  else if (damagePercent < 60)
    opacity = 0.6;
  else if (damagePercent < 80)
    opacity = 0.8;

  QColor col = QColor(125, 125, 125, 125); // gray
  if (opacity > 0.1)
  {
    col = Qt::red;
    col.setAlphaF(opacity);
  }
  fs.setFillColor(col);

  mapObj->setFillStyle(fs);

  // refresh MapObjectSelectionWidget or similar:
  emit mapObjectChanged(mapObj->uniqueMapId());

  TRACE_LOG(m_logger) << LOGFUNCTION << " END, buildingId=" << buildingId
                      << ", damagePercent=" << damagePercent
                      << ", fillStyle=" << mapObj->fillStyle()
                      << ", uniqueMapId=" << mapObj->uniqueMapId();
  return true;
}

bool Building2SituationMap::symbolAppearanceSettingsChangesAreRelevant(const FilterManagement::SymbolAppearanceSettings::Settings &newSas) const
{
  return (m_currentSymbolSettings.symbolSettings.symbolScale != newSas.symbolSettings.symbolScale) ||
         (m_currentSymbolSettings.symbolSettings.showBuildingOutline != newSas.symbolSettings.showBuildingOutline) ||
         (m_currentSymbolSettings.symbolSettings.showBuildingIdentifier != newSas.symbolSettings.showBuildingIdentifier);
}

void Building2SituationMap::handleSymbolAppearanceSettings(RefPointer<MAP_T> &mapObj)
{
  mapObj->setScale(m_currentSymbolSettings.symbolSettings.symbolScale);
  mapObj->setVisibility(m_currentSymbolSettings.symbolSettings.showBuildingOutline);
  mapObj->setIdentifierVisible(m_currentSymbolSettings.symbolSettings.showBuildingIdentifier);
}



}