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// $Id: ExGflashEventAction.cc 94396 2015-11-13 13:37:16Z gcosmo $
//
/// \file parameterisations/gflash/src/ExGflashEventAction.cc
/// \brief Implementation of the ExGflashEventAction class
//
// Created by Joanna Weng 26.11.2004


#include "ExGflashEventAction.hh"
#include "ExGflashHit.hh"
#include "G4EventManager.hh"
#include "G4SDManager.hh"
#include "G4UImanager.hh"
#include "G4TrajectoryContainer.hh"
#include "G4Event.hh"
#include "G4SystemOfUnits.hh"
//std
#include <iostream>
#include <algorithm>
//Gflash
using namespace std;


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ExGflashEventAction::ExGflashEventAction()
 : G4UserEventAction(),
   fNevent(0),fDtime(0.0),fCalorimeterCollectionId(-1)
{
}

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ExGflashEventAction::~ExGflashEventAction()
{
  if ( fNevent > 0 ) {
    G4cout << "Internal Real Elapsed Time /event is: "<< fDtime /fNevent<< G4endl;
  }
}

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void ExGflashEventAction::BeginOfEventAction(const G4Event *evt)
{
  fTimerIntern.Start();
  G4cout<<" ------ Start ExGflashEventAction ----- "<<G4endl;
  fNevent=evt->GetEventID();
  G4cout<<" Start generating event Nr "<<fNevent<<G4endl<<G4endl;   
}

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void ExGflashEventAction::EndOfEventAction(const G4Event *evt)
{  
  fTimerIntern.Stop();
  G4cout << G4endl;
  G4cout << "******************************************";
  G4cout << G4endl;
  G4cout << "Internal Real Elapsed Time is: "<< fTimerIntern.GetRealElapsed();
  G4cout << G4endl;
  G4cout << "Internal System Elapsed Time: " << fTimerIntern.GetSystemElapsed();
  G4cout << G4endl;
  G4cout << "Internal GetUserElapsed Time: " << fTimerIntern.GetUserElapsed();
  G4cout << G4endl;
  G4cout << "******************************************"<< G4endl;
  fDtime+=fTimerIntern.GetRealElapsed();
  G4cout<<" ------ ExGflashEventAction::End of event nr. "<<fNevent<<"  -----"<< G4endl;
  
  G4SDManager * SDman = G4SDManager::GetSDMpointer();
  G4String colNam;
  fCalorimeterCollectionId=SDman->GetCollectionID(colNam="ExGflashCollection");
  if (fCalorimeterCollectionId<0) return;
  G4HCofThisEvent * HCE = evt->GetHCofThisEvent();
  ExGflashHitsCollection* THC = 0;
  G4double totE = 0;
  // Read out of the crysta ECAL
  THC=(ExGflashHitsCollection *)(HCE->GetHC(fCalorimeterCollectionId));
  if (THC)
    {
      /// Hits in sensitive Detector
      int n_hit = THC->entries();
      G4cout<<"  " << n_hit<< " hits are stored in ExGflashHitsCollection "<<G4endl;
      G4PrimaryVertex* pvertex=evt->GetPrimaryVertex();   
      ///Computing (x,y,z) of vertex of initial particles  
      G4ThreeVector vtx=pvertex->GetPosition();
    G4PrimaryParticle* pparticle=pvertex->GetPrimary();
    // direction of the Shower
    G4ThreeVector mom=pparticle->GetMomentum()/pparticle->GetMomentum().mag();
    
    //@@@ ExGflashEventAction: Magicnumber
    G4double energyincrystal[100];
    for (int i=0;i<100;i++) energyincrystal[i]=0.;
    
    //@@@ ExGflashEventAction: Magicnumber
    /// For all Hits in sensitive detector
    for (int i=0;i<n_hit;i++)
      {
        G4double estep = (*THC)[i]->GetEdep()/GeV;
        if (estep >0.0)
          {
            totE += (*THC)[i]->GetEdep()/GeV;
            G4int num=(*THC)[i]->GetCrystalNum();
            
            energyincrystal[num]+=(*THC)[i]->GetEdep()/GeV;
            //G4cout << num << G4endl;
            //  G4cout << " Crystal Nummer " <<  (*THC)[i]->GetCrystalNum()  << G4endl;
            //  G4cout <<  (*THC)[i]->GetCrystalNum() /10 <<
            // "  "<<(*THC)[i]->GetCrystalNum()%10 << G4endl;
            
            G4ThreeVector hitpos=(*THC)[i]->GetPos();            
            G4ThreeVector l (hitpos.x(), hitpos.y(), hitpos.z());
            // distance from shower start
            l = l - vtx; 
            // projection on shower axis = longitudinal profile
            G4ThreeVector longitudinal  =  l;  
            // shower profiles (Radial)
            G4ThreeVector radial = vtx.cross(l);
          }
      }
    G4double   max = 0;
    G4int    index = 0;
    //Find crystal with maximum energy
    for (int i=0;i<100;i++) 
      {
        //G4cout << i <<"  " << energyincrystal[i] << G4endl;
        if (max <energyincrystal[i])
          {
            max=energyincrystal[i];
            index = i;
          }
      }  
    //G4cout << index <<" NMAX  " << index << G4endl;  
    
    // 3x3 matrix of crystals around the crystal with the maximum energy deposit
    G4double e3x3 =
      energyincrystal[index]+energyincrystal[index+1]+energyincrystal[index-1]+
      energyincrystal[index-10]+energyincrystal[index-9]+energyincrystal[index-11]+
      energyincrystal[index+10]+energyincrystal[index+11]+energyincrystal[index+9];
    
    // 5x5 matrix of crystals around the crystal with the maximum energy deposit  
    G4double e5x5 =
      energyincrystal[index]+energyincrystal[index+1]+energyincrystal[index-1]+
      energyincrystal[index+2]+energyincrystal[index-2]+
      energyincrystal[index-10]+energyincrystal[index-9]+energyincrystal[index-11]+
      energyincrystal[index-8]+energyincrystal[index-12]+
      energyincrystal[index+10]+energyincrystal[index+11]+energyincrystal[index+9]+
      energyincrystal[index+12]+energyincrystal[index+8];
    
    G4cout << "   e1  " << energyincrystal[index]  
           << "   e3x3  " << e3x3<<  "   GeV  e5x5  "   <<e5x5  <<G4endl;  
  }
  
  G4cout << " Total energy deposited in the calorimeter: " << totE << " (GeV)" << G4endl;
  G4TrajectoryContainer * trajectoryContainer = evt->GetTrajectoryContainer();
  G4int n_trajectories = 0;
  if(trajectoryContainer){ n_trajectories = trajectoryContainer->entries(); }
  G4cout << "    " << n_trajectories  << " trajectories stored in this event." << G4endl;
  
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......













