// --------------------------------------------------------------------------
//
// Macro for reconstruction in STS from digi data
//
// Tasks:  CbmStsClusterFinder
//         CbmStsFindHits
//         CbmStsFindTracks
//         CbmStsMatchTracks
//         CbmStsFitTracks
//
// V. Friese   12/09/2006
// Version     24/04/2007 (V. Friese)
//
// --------------------------------------------------------------------------

#include <math.h>
void sts_reco(Int_t nEvents = 1) {

  // ========================================================================
  //          Adjust this part according to your requirements
  
  // Input file (MC events)
  TString inFile = "sts.digi.root";
  
  // Parameter file
  TString parFile = "params.root";
  
  // STS digitisation file
  TString digiFile = "sts_v11a.digi.par";
  
  // Output file
  TString outFile = "sts.reco.root";

  // Verbosity level (0=quiet, 1=event level, 2=track level, 3=debug)
  Int_t iVerbose = 0;
  // ========================================================================

  // ---   Screen output   --------------------------------------------------  
  cout << "***************************************************" << endl;
  cout << "***   STS REALISTIC RECONSTRUCTION SCRIPT   *******" << endl;
  cout << "***************************************************" << endl;
  cout << "*** Input file        : " << inFile << endl;
  cout << "*** Parameter file    : " << parFile << endl;
  cout << "*** Digi file         : " << digiFile << endl;
  cout << "*** Output file       : " << outFile << endl;
  cout << "*** Number of events  : " << nEvents << endl;
  cout << "***************************************************" << endl;
  cout << endl << endl;
 // ------------------------------------------------------------------------


        
  // ---  ROOT settings   ---------------------------------------------------
  gStyle->SetPalette(1);  
  gDebug = 0;
  // ------------------------------------------------------------------------
 

  
  // -----   Timer   --------------------------------------------------------
  TStopwatch timer;
  timer.Start();
  // ------------------------------------------------------------------------

    
  
  // ----  Load libraries   -------------------------------------------------
  gROOT->LoadMacro("$VMCWORKDIR/gconfig/basiclibs.C");
  basiclibs();
  gSystem->Load("libGeoBase");
  gSystem->Load("libParBase");
  gSystem->Load("libBase");
  gSystem->Load("libCbmBase");
  gSystem->Load("libCbmData");
  gSystem->Load("libField");
  gSystem->Load("libPassive");
  gSystem->Load("libMvd");
  gSystem->Load("libSts");
  gSystem->Load("libGen");
  gSystem->Load("libRich");
  gSystem->Load("libTrd");
  gSystem->Load("libTof");
  gSystem->Load("libGlobal");
  gSystem->Load("libEcal");
  gSystem->Load("libKF");
  gSystem->Load("libL1");
  // ------------------------------------------------------------------------

  

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


  // ---  STS Cluster Finder  ---------------------------------------------------------------------
 
  CbmStsClusterFinder* findClusters = new CbmStsClusterFinder("STSFindClusters", iVerbose);
  run->AddTask(findClusters);

  // ---  STS hit finding   -------------------------------------------------

  CbmStsFindHits* findHits = new CbmStsFindHits("STSFindHits", iVerbose);
  run->AddTask(findHits);

  // -----   STS track finding   --------------------------------------------
/*FairTask* kalman= new CbmKF();
  run->AddTask(kalman);
  FairTask* l1 = new CbmL1();
  run->AddTask(l1);
  CbmStsTrackFinder* trackFinder    = new CbmL1StsTrackFinder();
  FairTask* findTracks = new CbmStsFindTracks(iVerbose, trackFinder, kFALSE);
  run->AddTask(findTracks);
  // ------------------------------------------------------------------------

  // -----   STS track fitting   --------------------------------------------
  CbmStsTrackFitter* trackFitter = new CbmStsKFTrackFitter();
  FairTask* fitTracks = new CbmStsFitTracks("STS Track Fitter",
					   trackFitter,
					   iVerbose);
  run->AddTask(fitTracks);*/
  // ------------------------------------------------------------------------

  // -----  Parameter database   --------------------------------------------
  TString stsDigiFile = gSystem->Getenv("VMCWORKDIR");
  stsDigiFile += "/parameters/sts/";
  stsDigiFile += digiFile;
  cout << "digi file = " << stsDigiFile << endl;
  FairRuntimeDb* rtdb = run->GetRuntimeDb();
  FairParRootFileIo*  parIo1 = new FairParRootFileIo();
  FairParAsciiFileIo* parIo2 = new FairParAsciiFileIo();
  parIo1->open(parFile.Data());
  parIo2->open(stsDigiFile.Data(),"in");
  rtdb->setFirstInput(parIo1);
  rtdb->setSecondInput(parIo2);
  rtdb->setOutput(parIo1);
  rtdb->saveOutput();
  // ------------------------------------------------------------------------

  
  
  // -----   Initialise and run   -------------------------------------------
  run->LoadGeometry();
  run->Init();
  run->Run(0, nEvents);
  // ------------------------------------------------------------------------



  // -----   Finish   -------------------------------------------------------
  timer.Stop();
  Double_t rtime = timer.RealTime();


  Double_t ctime = timer.CpuTime();
  cout << endl << endl;
  cout << "Macro finished succesfully." << endl;
  cout << "Output file is "         << outFile << endl;
  cout << "Parameter file is "      << parFile << endl;
  cout << "Real time " << rtime << " s, CPU time " << ctime << " s" << endl;
  cout << endl;
  // ------------------------------------------------------------------------


}