// $Id$
// Category: physics
//
// Author: I. Hrivnacova
//
// Class TG4ProcessMCMap
// ---------------------
// See the class description in the header file.

#include "TG4ProcessMCMap.h"
#include "TG4G3PhysicsManager.h"
#include "TG4Globals.h"

#include <G4VProcess.hh>
#include "g4std/iomanip"
#include "globals.hh"

TG4ProcessMCMap* TG4ProcessMCMap::fgInstance = 0;

//_____________________________________________________________________________
TG4ProcessMCMap::TG4ProcessMCMap() {
//
  if (fgInstance) {
    TG4Globals::Exception(
      "TG4ProcessMCMap: attempt to create two instances of singleton.");
  }
      
  fgInstance = this;  
}

//_____________________________________________________________________________
TG4ProcessMCMap::TG4ProcessMCMap(const TG4ProcessMCMap& right) {
//
  TG4Globals::Exception(    
    "Attempt to copy TG4ProcessMCMap singleton.");
}  

//_____________________________________________________________________________
TG4ProcessMCMap::~TG4ProcessMCMap() {
//
}

// operators

//_____________________________________________________________________________
TG4ProcessMCMap& TG4ProcessMCMap::operator=(const TG4ProcessMCMap& right)
{
  // check assignement to self
  if (this == &right) return *this;

  TG4Globals::Exception(
    "Attempt to assign TG4ProcessMCMap singleton.");
    
  return *this;  
}    
          
// private methods

//_____________________________________________________________________________
G4bool TG4ProcessMCMap::IsDefined(const G4String& processName)
{
// Returns true if the first is already in the map.
// ---

  if (fMap.find(processName) == fMap.end()) 
    return false;
  else                 
    return true;
}

// public methods

//_____________________________________________________________________________
G4bool TG4ProcessMCMap::Add(G4VProcess* process, AliMCProcess mcProcess)
{  
// Adds the pair to the map.
// ---

  if (!process) return false;

  return Add(process->GetProcessName(), mcProcess); 
}

//_____________________________________________________________________________
G4bool TG4ProcessMCMap::Add(G4String processName, AliMCProcess mcProcess)
{  
// Adds the pair to the map.
// ---

  if (!IsDefined(processName)) {
    // insert into map 
    // only in case it is not yet here
    fMap[processName] = mcProcess;
    return true;
  }
  return false;  
}

//_____________________________________________________________________________
void TG4ProcessMCMap::PrintAll() const
{
// Dumps all map.
// ---

  if (fMap.size()) {
    G4cout << "Dump of TG4ProcessMCMap - " << fMap.size() << " entries:" << G4endl;
    G4int counter = 0;
    for (MapConstIterator i=fMap.begin(); i != fMap.end(); i++) {
      G4String processName = (*i).first;
      AliMCProcess mcProcess = (*i).second;
      G4cout << "Map element " << G4std::setw(3) << counter++ << "   " 
             << processName << "   " 
	     << AliMCProcessName[mcProcess]
	     << G4endl;
    }
  }
}

//_____________________________________________________________________________
void TG4ProcessMCMap::Clear() 
{
// Clears the map.
// ---

  fMap.clear();
}  

//_____________________________________________________________________________
AliMCProcess TG4ProcessMCMap::GetMCProcess(const G4VProcess* process)
{
// Returns AliMCProcess code for the process with a given name.
// ---

  if (!process) return kPNoProcess;
  
  return GetMCProcess(process->GetProcessName());
}

//_____________________________________________________________________________
AliMCProcess TG4ProcessMCMap::GetMCProcess(const G4String& processName)
{
// Returns AliMCProcess code for the process with a given name.
// ---

  MapIterator i = fMap.find(processName);
  if (i == fMap.end()) 
    return kPNoProcess;
  else                 
    return (*i).second;
}

//_____________________________________________________________________________
G4String TG4ProcessMCMap::GetMCProcessName(const G4VProcess* process)
{
// Returns AliMCProcess code for the process with a given name.
// ---

  if (!process) return AliMCProcessName[kPNoProcess];

  return GetMCProcessName(process->GetProcessName());
}  

//_____________________________________________________________________________
G4String TG4ProcessMCMap::GetMCProcessName(const G4String& processName)
{
// Returns AliMCProcess code for the process with a given name.
// ---

  return AliMCProcessName[GetMCProcess(processName)];
}