// -------------------------------------------------------------------------
// -----                  CbmLitEnvironment header file               -----
// -----                  Created 16/07/07  by A. Lebedev               -----
// -------------------------------------------------------------------------


/** CbmLitEnvironment.h
 *@author A.Lebedev <alebedev@jinr.ru>
 **
 ** 
 **/ 


#ifndef CbmLitEnvironmentAAA
#define CbmLitEnvironmentAAA

#include "CbmLitMaterial.h"
#include "CbmLitCircleMaterial.h"
#include "CbmField.h"
#include "CbmGeoNode.h"

class CbmLitEnvironment: public TObject {

public:
     
   // distructor
   virtual ~CbmLitEnvironment();  
   
   static CbmLitEnvironment* Instance();
   
   // initialization
   void Init();
   
   CbmField* GetField();
   
   const std::vector<CbmLitMaterial*> & GetMaterials();
   
   void GetTrdLayout(Int_t &nofStations, 
                     Int_t &nofLayers,
                     std::vector<Int_t> &nofLayersPerStation);
   
   void GetStsLayout();
    
protected:
    
   // constructor
   CbmLitEnvironment();
 
private:

   static CbmLitEnvironment* fInstance;
   
   std::vector<CbmLitMaterial*> fvMaterials;

   Double_t fThickWall;
   
   CbmField *fField;
   
   Int_t fNofStations;
   Int_t fNofLayers;
   std::vector<Int_t> fNofLayersPerStation;
   
   void ReadStsMaterials(TObjArray *Nodes);
   void ReadStsMaterials();
   void ReadTrdMaterials(TObjArray *Nodes);
   void ReadTrdMaterials();
   void ReadRichMaterials();
   Int_t ReadRichNode( CbmLitCircleMaterial *mat, CbmGeoNode *node);
    
   
   ClassDef(CbmLitEnvironment,1)
}; 

#endif //CbmLitEnvironment