//---------------------------------------------------------------------------------
// @author  M. Zyzak
// @version 1.0
// @since   15.08.14
// 
// macro to reconstruct particles from signal events by KFParticleFinder
//_________________________________________________________________________________

void physSignal(int nEventsToRun = 10000) {

  TStopwatch timer;
  timer.Start();

  const int firstEventToRun = 0;
  const int lastEventToRun = firstEventToRun + nEventsToRun - 1;

  TString parDir = TString(gSystem->Getenv("VMCWORKDIR")) + TString("/parameters");
  TString name = "signal";

  TString inFile  = name + ".mc.root";
  TString parFile = name + ".params.root";
  TString bgFile  =  name + ".mc.root";
  TString recFile =  name + ".reco.root";

  TString outFile = "out.root";

  TList *parFileList = new TList();

  TObjString stsDigiFile = parDir + "/sts/sts_v13d_std.digi.par";
  parFileList->Add(&stsDigiFile);


  // -----   Reconstruction run   -------------------------------------------
  FairRunAna *run= new FairRunAna();
  run->SetInputFile(inFile);
  run->AddFriend(recFile);
  run->SetOutputFile(outFile);
  // ------------------------------------------------------------------------

 //          Adjust this part according to your requirements
  CbmKF *KF = new CbmKF();
  run->AddTask(KF);

  CbmL1* l1 = new CbmL1("CbmL1",1, 3);
  const TString stsMatBudgetFileName = parDir + "/sts/sts_matbudget_v13d.root";
  const TString mvdMatBudgetFileName = parDir + "/mvd/mvd_matbudget_v14b.root";
  l1->SetStsMaterialBudgetFileName(stsMatBudgetFileName.Data());
  l1->SetMvdMaterialBudgetFileName(mvdMatBudgetFileName.Data());
  run->AddTask(l1);

    // ----- PID for KF Particle Finder --------------------------------------------
  CbmKFParticleFinderPID* kfParticleFinderPID = new CbmKFParticleFinderPID();
  kfParticleFinderPID->SetSIS100(); 
  kfParticleFinderPID->SetPIDMode(1);
  run->AddTask(kfParticleFinderPID);
  
  // ----- KF Particle Finder --------------------------------------------
  CbmKFParticleFinder* kfParticleFinder = new CbmKFParticleFinder();
  kfParticleFinder->SetPIDInformation(kfParticleFinderPID);
  kfParticleFinder->SetPVToZero();
  run->AddTask(kfParticleFinder);

  // ----- KF Particle Finder QA --------------------------------------------
  CbmKFParticleFinderQA* kfParticleFinderQA = new CbmKFParticleFinderQA("CbmKFParticleFinderQA", 0, kfParticleFinder->GetTopoReconstructor());
  kfParticleFinderQA->SetPrintEffFrequency(100);
  run->AddTask(kfParticleFinderQA);

  // -----  Parameter database   --------------------------------------------
  FairRuntimeDb* rtdb = run->GetRuntimeDb();
  FairParRootFileIo* parIo1 = new FairParRootFileIo();
  FairParAsciiFileIo* parIo2 = new FairParAsciiFileIo();
  parIo1->open(parFile.Data());
  parIo2->open(parFileList, "in");
  rtdb->setFirstInput(parIo1);
  rtdb->setSecondInput(parIo2);
  rtdb->setOutput(parIo1);
  rtdb->saveOutput();
  // ------------------------------------------------------------------------

  // -----   Intialise and run   --------------------------------------------
  run->Init();
  
  KFPartEfficiencies eff;
  for(int jParticle=eff.fFirstStableParticleIndex+10; jParticle<=eff.fLastStableParticleIndex; jParticle++)
  {
    TDatabasePDG* pdgDB = TDatabasePDG::Instance();

    if(!pdgDB->GetParticle(eff.partPDG[jParticle])){
        pdgDB->AddParticle(eff.partTitle[jParticle].data(),eff.partTitle[jParticle].data(), eff.partMass[jParticle], kTRUE,
                           0, eff.partCharge[jParticle]*3,"Ion",eff.partPDG[jParticle]);
    }
  }
  cout << "Starting run" << endl;
  run->Run(firstEventToRun,lastEventToRun+1);
  // ------------------------------------------------------------------------

  timer.Stop();
  Double_t rtime = timer.RealTime();
  Double_t ctime = timer.CpuTime();
  cout << "Macro finished succesfully." << endl;
  cout << "Output file is "    << outFile << endl;
  cout << "Parameter file is " << parFile << endl;
  printf("RealTime=%f seconds, CpuTime=%f seconds\n",rtime,ctime);
}