/**
  * Handler for the HMI language
  * $Id$
  * $HeadURL$
  * $Author$
  */

#include "effect_show_mine_area.h"

#include <QLineF>

namespace EffectShowManagement
{
EffectShowMineArea::EffectShowMineArea(const AreaEffectSimulation::MineArea &mineArea)
  : m_mineArea(mineArea)
  , m_segment(getEffectShowSegment(mineArea))
  , m_utmZone(-1)
  , m_rotation(0.0)
  , m_logger(getLogger("EffectShowMineArea"))
{
}

//=============================================================================
Database::EsmEffectShow EffectShowMineArea::getEffectShow()
{
  calculatePositions();

  Database::EsmEffectShow esmEffectShow;
  esmEffectShow.id                = 0;
  esmEffectShow.name              = QLatin1String("MIN");
  esmEffectShow.startTime         = m_mineArea.effectStart().is_set() ? m_mineArea.effectStart().get() : 0;
  esmEffectShow.duration          = m_mineArea.effectDuration();
  esmEffectShow.centerPosition    = m_centerPos.geographic();
  esmEffectShow.idAreaEffectSimulation = m_mineArea.id();
  esmEffectShow.nameAreaEfffectSimulation = QString::fromStdString(m_mineArea.name());
  esmEffectShow.esmParticipantId = -1;
  esmEffectShow.numOfVolley       = 1; //Hardcode??
  esmEffectShow.shotsPerVolley    = 18;
  esmEffectShow.lowerLeftPosition = m_lowerLeftPos.geographic();
  esmEffectShow.areaWidth         = getEffectAreaWidth();
  esmEffectShow.areaDepth         = getEffectAreaDepth();
  esmEffectShow.areaRotation      = m_rotation;

  updateEffectShow(esmEffectShow);

  for (const auto &seg : m_mineArea.segments())
  {
    const Core::GeoPosition2D &posGeo = seg.positionStart();
    LtsCoordTrans::UtmCoordinate pos = LtsCoordTrans::UtmCoordinate::fromGeographic(posGeo.lon(), posGeo.lat(), m_utmZone);
    DEBUG_LOG(m_logger) << "Start Pos Segm.: " << pos.mgrs();
  }
  DEBUG_LOG(m_logger) << "Center Pos Effect Show: " << LtsCoordTrans::mgrsFromGeographic(esmEffectShow.centerPosition.x(), esmEffectShow.centerPosition.y());
  return esmEffectShow;
}
//-----------------------------------------------------------------------------
void EffectShowMineArea::updateEffectShow(Database::EsmEffectShow &data)
{
  data.nameAreaEfffectSimulation = QString::fromStdString(m_mineArea.name());
  data.duration         = m_mineArea.effectDuration() / 10;
  if (data.duration > (3600 * 1000))
    data.duration = 3600 * 1000;
  if (m_mineArea.effectStart().is_set())
    data.startTime = m_mineArea.effectStart().get() + m_mineArea.effectDuration() - data.duration;
  else
    data.startTime = 0;
  data.typeOfAmmunition = m_mineArea.chargeStruct().chargeTypeId();
}
//-----------------------------------------------------------------------------
void EffectShowMineArea::calculatePositions()
{
  // start position of the segment
  Core::GeoPosition2D geoPosStart = m_segment.positionStart();
  Core::GeoPosition2D geoPosEnd   = m_segment.positionEnd();
  LtsCoordTrans::UtmCoordinate startPositionUtm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPosStart.lon(), geoPosStart.lat(), m_utmZone);
  if (m_utmZone == -1)
    m_utmZone = startPositionUtm.zone;

  LtsCoordTrans::UtmCoordinate endPositionUtm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPosEnd.lon(), geoPosEnd.lat(), m_utmZone);
  const QLineF line({startPositionUtm.x, startPositionUtm.y}, {endPositionUtm.x, endPositionUtm.y});

  // length/2 of the segment
  double halfSegmentLength = line.length() / 2.0;

  // rotation angle
  m_rotation = 90.0 - line.angle();
  double angle = m_rotation * LtsCoordTrans::deg2rad();

  // calculation center position
  LtsCoordTrans::UtmCoordinate centerPos = startPositionUtm;
  centerPos.x = centerPos.x + halfSegmentLength;
  m_centerPos = rotate(centerPos, startPositionUtm, angle);

  // calculation lower left position
  LtsCoordTrans::UtmCoordinate lowerLeftPos = startPositionUtm;
  lowerLeftPos.x = lowerLeftPos.x + halfSegmentLength - (getEffectAreaWidth() / 2.0);
  lowerLeftPos.y = lowerLeftPos.y - (getEffectAreaDepth() / 2.0);
  m_lowerLeftPos = rotate(lowerLeftPos, startPositionUtm, angle);
}
//-----------------------------------------------------------------------------
int EffectShowMineArea::getEffectAreaWidth() const
{
  Core::GeoPosition2D geoPosStart = m_segment.positionStart();
  Core::GeoPosition2D geoPosEnd   = m_segment.positionEnd();

  LtsCoordTrans::UtmCoordinate startPositionUtm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPosStart.lon(), geoPosStart.lat(), m_utmZone);
  LtsCoordTrans::UtmCoordinate endPositionUtm = LtsCoordTrans::UtmCoordinate::fromGeographic(geoPosEnd.lon(), geoPosEnd.lat(), m_utmZone);
  const QLineF line({startPositionUtm.x, startPositionUtm.y}, {endPositionUtm.x, endPositionUtm.y});

  int segmentLength = line.length();
  if (segmentLength <=  50) return  50;
  if (segmentLength >= 300) return 300;
  return (((segmentLength + 25) / 50) * 50);
}
//-----------------------------------------------------------------------------
int EffectShowMineArea::getEffectAreaDepth() const
{
  int segmentWidth  = qRound(m_mineArea.width());
  if (segmentWidth <=  50) return 50;
  if (segmentWidth >= 300) return 300;
  return (((segmentWidth + 25) / 50) * 50);
}
//static ----------------------------------------------------------------------
LtsCoordTrans::UtmCoordinate EffectShowMineArea::rotate(const LtsCoordTrans::UtmCoordinate &p, const LtsCoordTrans::UtmCoordinate &c, double angle)
{
  LtsCoordTrans::UtmCoordinate res = p; // copy zone, northp
  res.x = ((p.x - c.x) * cos(angle)) - ((p.y - c.y) * sin(angle)) + c.x;
  res.y = ((p.x - c.x) * sin(angle)) + ((p.y - c.y) * cos(angle)) + c.y;
  return res;
}

//-----------------------------------------------------------------------------
} // Namespace EffectShowManagement