// -------------------------------------------------------------------------
// -----                    CbmMvdDigiToHit source file                -----
// -------------------------------------------------------------------------

// Includes from MVD
#include "CbmMvdDigiToHit.h"
#include "CbmMvdPoint.h"
#include "plugins/tasks/CbmMvdSensorDigiToHitTask.h"
#include "SensorDataSheets/CbmMvdMimosa26AHR.h"
#include "tools/CbmMvdGeoHandler.h"
#include "CbmMvdDetector.h"

// Includes from FAIR
#include "FairRootManager.h"
#include "FairModule.h"


// Includes from ROOT
#include "TClonesArray.h"
#include "TGeoManager.h"

#include "TString.h"
#include "TMath.h"


#include "TStopwatch.h"
#include <chrono>
//#include <omp.h>
#include <cstring>
#include <fstream>


// Includes from C++
#include <iomanip>
#include <iostream>

using std::cout;
using std::endl;
using std::setw;
using std::setprecision;
using std::fixed;




// -----   Default constructor   ------------------------------------------
CbmMvdDigiToHit::CbmMvdDigiToHit() 
  : FairTask("CbmMvdDigiToHit"),
    fMode(0),
    fShowDebugHistos(kFALSE),
    fDetector(NULL),
    fInputDigis(NULL),
    fHit(NULL),
    fHitPluginNr(),
    fBranchName(""),
    fTimer()
{
}
// -------------------------------------------------------------------------

// -----   Standard constructor   ------------------------------------------
CbmMvdDigiToHit::CbmMvdDigiToHit(const char* name, Int_t iMode, Int_t iVerbose) 
  : FairTask(name, iVerbose),
    fMode(iMode),
    fShowDebugHistos(kFALSE),
    fDetector(NULL),
    fInputDigis(NULL),
    fHit(NULL),
    fHitPluginNr(0),
    fBranchName("MvdDigi"),
    fTimer()
{
}
// -------------------------------------------------------------------------

// -----   Destructor   ----------------------------------------------------
CbmMvdDigiToHit::~CbmMvdDigiToHit() {
 
if ( fHit) 
    {
    fHit->Delete();
    delete fHit;
    }
}
// -----------------------------------------------------------------------------

// -----   Exec   --------------------------------------------------------------
void CbmMvdDigiToHit::Exec(Option_t* /*opt*/){
// --- Start timer

fTimer.Start();
 
fHit->Delete();
if(fInputDigis && fInputDigis->GetEntriesFast() > 0)
   {
   if(fVerbose) cout << "//----------------------------------------//";
   if(fVerbose) cout << endl << "Send Input" << endl;
   fDetector->SendInputDigisToHits(fInputDigis); //Version for DigisToHits
   if(fVerbose) cout << "Execute HitPlugin Nr. "<< fHitPluginNr << endl;
   fDetector->Exec(fHitPluginNr);
   if(fVerbose) cout << "End Chain" << endl;
   if(fVerbose) cout << "Start writing Hit" << endl; 
   fHit->AbsorbObjects(fDetector->GetOutputHits(),0,fDetector->GetOutputHits()->GetEntriesFast()-1); 
   if(fVerbose) cout << "Total of " << fHit->GetEntriesFast() << " Hit in this Event" << endl;
   if(fVerbose) cout  << "//----------------------------------------//" << endl ;
   LOG(info) << "+ " << setw(20) << GetName() << ": Created: " 
             << fHit->GetEntriesFast() << " Hit in " 
             << fixed << setprecision(6) << fTimer.RealTime() << " s";
   }
  
fTimer.Stop();


}
// -----------------------------------------------------------------------------

// -----   Init   --------------------------------------------------------------
InitStatus CbmMvdDigiToHit::Init() {
  cout << "-I- " << GetName() << ": Initialisation..." << endl;
  cout << endl;
  cout << "---------------------------------------------" << endl;
  cout << "-I- Initialising " << GetName() << " ...." << endl;

    // **********  RootManager
    FairRootManager* ioman = FairRootManager::Instance();
    if ( ! ioman ) 
	{
	cout << "-E- " << GetName() << "::Init: No FairRootManager!" << endl;
	return kFATAL;
	}

    // **********  Get input arrays
    fInputDigis = (TClonesArray*) ioman->GetObject("MvdDigi"); 

    if (! fInputDigis ) {
      LOG(error) << "No MvdDigi branch found. There was no MVD in the simulation. Switch this task off";
      return kERROR;
    }
   
    // **********  Register output array
    fHit = new TClonesArray("CbmMvdHit", 10000);
    ioman->Register("MvdHit", "Mvd Hit", fHit, IsOutputBranchPersistent("MvdHit"));

    fDetector = CbmMvdDetector::Instance();
    
	if(fDetector->GetSensorArraySize() > 1)
		{
		 if(fVerbose) cout << endl << "-I- succesfully loaded Geometry from file -I-" << endl;
		}
	else
		{
		LOG(fatal) <<  "Geometry couldn't be loaded from file. No MVD digitizer available.";
		}

    CbmMvdSensorDigiToHitTask* hitTask = new CbmMvdSensorDigiToHitTask();
   
    fDetector->AddPlugin(hitTask);
    fHitPluginNr = (UInt_t) (fDetector->GetPluginArraySize());
    if(fShowDebugHistos)fDetector->ShowDebugHistos();
    fDetector->Init();
   

    // Screen output
    cout << GetName() << " initialised with parameters: " << endl;
    //PrintParameters();
    cout << "---------------------------------------------" << endl;

       
    return kSUCCESS;
}

// -----   Virtual public method Reinit   ----------------------------------
InitStatus CbmMvdDigiToHit::ReInit() {

    return kSUCCESS;
}
// -------------------------------------------------------------------------



// -----   Virtual method Finish   -----------------------------------------
void CbmMvdDigiToHit::Finish() {
    fDetector->Finish();
    PrintParameters();

}					       
// -------------------------------------------------------------------------



// -----   Private method Reset   ------------------------------------------
void CbmMvdDigiToHit::Reset() {
    fHit->Delete();

}
// -------------------------------------------------------------------------  

// -----   Private method GetMvdGeometry   ---------------------------------
void CbmMvdDigiToHit::GetMvdGeometry() {

}
// -------------------------------------------------------------------------  



// -----   Private method PrintParameters   --------------------------------
void CbmMvdDigiToHit::PrintParameters() {
    
    cout << "============================================================" << endl;
    cout << "============== Parameters DigiToHit ====================" << endl;
    cout << "============================================================" << endl;
    cout << "=============== End Task ===================================" << endl;
 
}
// -------------------------------------------------------------------------  



ClassImp(CbmMvdDigiToHit);