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//
// G4tgrVolumeMgr
//
// Class description:
//
// Class to manage the detector units. It is a singleton.

// Author: P.Arce, CIEMAT (November 2007)
// --------------------------------------------------------------------
#ifndef G4tgrVolumeMgr_hh
#define G4tgrVolumeMgr_hh 1

#include "globals.hh"
#include "G4tgrSolid.hh"
#include "G4tgrVolume.hh"
#include "G4tgrPlace.hh"
#include "G4tgrIsotope.hh"
#include "G4tgrElement.hh"
#include "G4tgrMaterial.hh"
#include "G4tgrRotationMatrix.hh"

#include <map>

using G4mapssol = std::map<G4String, G4tgrSolid*>;
using G4mapsvol = std::map<G4String, G4tgrVolume*>;
using G4mmapspl = std::multimap<G4String, const G4tgrPlace*>;

class G4tgrVolumeMgr
{
  public:

    static G4tgrVolumeMgr* GetInstance();
      // Get the only instance

    G4tgrSolid* CreateSolid(const std::vector<G4String>& wl, G4bool bVOLUtag);

    void RegisterParentChild(const G4String& parentName, const G4tgrPlace* pl);
      // Add to theG4tgrVolumeTree

    G4tgrSolid* FindSolid(const G4String& name, G4bool exists = false);
      // Find a G4tgrSolid with name 'name'. If it is not found:
      // if exists is true, exit; if exists is false, return nullptr

    G4tgrVolume* FindVolume(const G4String& volname, G4bool exists = false);
      // Find a G4tgrVolume with name 'volname'. If it is not found:
      // if exists is true, exit; if exists is false, return nullptr

    std::vector<G4tgrVolume*> FindVolumes(const G4String& volname,
                                          G4bool exists);
      // Find all G4tgrVolume's with name 'volname'. '*' can be used in the
      // name to mean 'any character' or 'any substring'. If it is not found:
      // if exists is true, exit; if exists is false, return nullptr

    const G4tgrVolume* GetTopVolume();
      // Find the top of the volume tree

    std::pair<G4mmapspl::iterator, G4mmapspl::iterator>
    GetChildren(const G4String& name);
      // Find the list of G4tgrPlace children of G4tgrVolume 'name'

    void DumpSummary();
      // Dump summary
    void DumpVolumeTree();
      // Dump to cout the tree of G4tgrVolume's
    void DumpVolumeLeaf(const G4tgrVolume* vol, unsigned int copyNo,
                        unsigned int leafDepth);
      // Dump a G4tgrVolume indicating its copy no
      // and its depth (number of ancestors)

    void RegisterMe(G4tgrSolid* vol);
    void UnRegisterMe(G4tgrSolid* vol);
    void RegisterMe(G4tgrVolume* vol);
    void UnRegisterMe(G4tgrVolume* vol);
    void RegisterMe(G4tgrPlace* pl) { theG4tgrPlaceList.push_back(pl); }
    void RegisterMe(G4tgrIsotope* iso) { theHgIsotList.push_back(iso); }
    void RegisterMe(G4tgrElement* ele) { theHgElemList.push_back(ele); }
    void RegisterMe(G4tgrMaterial* mat) { theHgMateList.push_back(mat); }
    void RegisterMe(G4tgrRotationMatrix* rm) { theHgRotMList.push_back(rm); }

    // Accessors

    const G4mapssol& GetSolidMap() { return theG4tgrSolidMap; }
    const G4mapsvol& GetVolumeMap() { return theG4tgrVolumeMap; }
    const G4mmapspl& GetVolumeTree() { return theG4tgrVolumeTree; }
    std::vector<G4tgrVolume*> GetVolumeList() { return theG4tgrVolumeList; }
    std::vector<G4tgrPlace*> GetDetPlaceList() { return theG4tgrPlaceList; }
    std::vector<G4tgrIsotope*> GetIsotopeList() { return theHgIsotList; }
    std::vector<G4tgrElement*> GetElementList() { return theHgElemList; }
    std::vector<G4tgrMaterial*> GetMaterialList() { return theHgMateList; }
    std::vector<G4tgrRotationMatrix*> GetRotMList() { return theHgRotMList; }

  private:

    G4tgrVolumeMgr();
    ~G4tgrVolumeMgr();

  private:

    G4mapssol theG4tgrSolidMap;
      // Map of G4tgrSolid's: G4String is the G4tgrSolid name,
      // G4tgrSolid* the pointer to it

    G4mapsvol theG4tgrVolumeMap;
      // Map of G4tgrVolume's: G4String is the G4tgrVolume name,
      // G4tgrVolume* the pointer to it

    G4mmapspl theG4tgrVolumeTree;
      // Hierarchy tree of G4tgrVolume's: G4String is the name
      // of the parent G4tgrVolume, G4tgrPlace* the pointers to children

    static G4ThreadLocal G4tgrVolumeMgr* theInstance;

    std::vector<G4tgrVolume*> theG4tgrVolumeList;
    std::vector<G4tgrPlace*> theG4tgrPlaceList;
    std::vector<G4tgrIsotope*> theHgIsotList;
    std::vector<G4tgrElement*> theHgElemList;
    std::vector<G4tgrMaterial*> theHgMateList;
    std::vector<G4tgrRotationMatrix*> theHgRotMList;
};

#endif