/** @file CbmStsSimSensorFactory.cxx
 ** @author Volker Friese <v.friese@gsi.de>
 ** @date 17.03.2020
 **/

#include "CbmStsSimSensorFactory.h"

#include <cassert>
#include <FairLogger.h>
#include "CbmStsDefs.h"
#include "CbmStsParSensor.h"
#include "CbmStsSimSensorDssdOrtho.h"
#include "CbmStsSimSensorDssdStereo.h"

using UP_sensor = CbmStsSimSensorFactory::UP_sensor;



// -----   Constructor   ---------------------------------------------------
CbmStsSimSensorFactory::CbmStsSimSensorFactory() {
}
// -------------------------------------------------------------------------



// -----   Destructor   ----------------------------------------------------
CbmStsSimSensorFactory::~CbmStsSimSensorFactory() {
}
// -------------------------------------------------------------------------



// -----   Create a simulation sensor   ------------------------------------
UP_sensor CbmStsSimSensorFactory::CreateSensor(const CbmStsParSensor& par) {

  switch(par.GetClass()) {

    // --- Sensor class DssdStereo. Number of strips and pitch must be
    // --- the same for both sides.
    case CbmStsSensorClass::kDssdStereo: {
      Double_t dY = par.GetPar(3);       // Active size in y
      Int_t nStrips = par.GetParInt(4);  // Number of strips front side
      Double_t pitch = par.GetPar(6);    // Strip pitch front side
      Double_t stereoF = par.GetPar(8);  // Stereo angle front side
      Double_t stereoB = par.GetPar(9);  // Stereo angle back side
      assert(nStrips == par.GetParInt(5)); // same number of strips
      assert(TMath::Abs(pitch-par.GetPar(7)) < 0.0001); // same pitch
      assert(Double_t(nStrips) * pitch < par.GetPar(0));
      assert(dY <= par.GetPar(1));  // Active size fits into geometry
      UP_sensor sensor(new CbmStsSimSensorDssdStereo(dY, nStrips, pitch,
                                                     stereoF, stereoB));
      return sensor;
      break;
    } //? DssdStereo

    // --- Sensor class DssdOrtho
    case CbmStsSensorClass::kDssdOrtho: {
      Int_t nStripsX = par.GetParInt(4);   // Number of strips front side
      Int_t nStripsY = par.GetParInt(5);   // Number of strips back side
      Double_t pitchX = par.GetPar(6);     // Strip pitch front side
      Double_t pitchY = par.GetPar(7);     // Strip pitch back side
      assert ( Double_t(nStripsX) * pitchX < par.GetPar(0));
      assert ( Double_t(nStripsY) * pitchY < par.GetPar(1));
      UP_sensor sensor(new CbmStsSimSensorDssdOrtho(nStripsX, pitchX,
                                                    nStripsY, pitchY));
      return sensor;
      break;
    } //? DssdOrtho

    // --- Unknown sensor class
    default: {
      LOG(fatal) << "StsSimSensorFactory: Unknown sensor class!";
      return nullptr;
      break;
    } //? unknown sensor class

  } //# switch sensor class

  return nullptr;
}
// -------------------------------------------------------------------------


ClassImp(CbmStsSimSensorFactory)