// $Id$
// Author: Sergey Linev   22/12/2013

#ifndef ROOT_TRootSnifferStore
#define ROOT_TRootSnifferStore

#ifndef ROOT_TObject
#include "TObject.h"
#endif

#ifndef ROOT_TString
#include "TString.h"
#endif

class TDataMember;
class TFolder;

/** Abstract interface for storage of hierarchy scan in TRootSniffer */

class TRootSnifferStore : public TObject {
protected:
   void         *fResPtr;       //! pointer on found item
   TClass       *fResClass;     //! class of found item
   TDataMember  *fResMember;    //! datamember pointer of found item
   Int_t         fResNumChilds; //! count of found childs, -1 by default
   Int_t         fResRestrict;  //! restriction for result, 0-default, 1-readonly, 2-full
public:
   TRootSnifferStore();
   virtual ~TRootSnifferStore();

   virtual void CreateNode(Int_t, const char *) {}
   virtual void SetField(Int_t, const char *, const char *, Bool_t) {}
   virtual void BeforeNextChild(Int_t, Int_t, Int_t) {}
   virtual void CloseNode(Int_t, Int_t) {}

   void SetResult(void *_res, TClass *_rescl, TDataMember *_resmemb,
                  Int_t _res_chld, Int_t restr = 0);

   void *GetResPtr() const
   {
      return fResPtr;
   }
   TClass *GetResClass() const
   {
      return fResClass;
   }
   TDataMember *GetResMember() const
   {
      return fResMember;
   }
   Int_t GetResNumChilds() const
   {
      return fResNumChilds;
   }
   Int_t GetResRestrict() const
   {
      return fResRestrict;
   }
   virtual Bool_t IsXml() const
   {
      return kFALSE;
   }

   ClassDef(TRootSnifferStore, 0) // structure for results store of objects sniffer
};

// ========================================================================

/** Storage of hierarchy scan in TRootSniffer in XML format */

class TRootSnifferStoreXml : public TRootSnifferStore {
protected:
   TString *fBuf;          //! output buffer
   Bool_t fCompact;        //! produce compact xml code

public:
   TRootSnifferStoreXml(TString &_buf, Bool_t _compact = kFALSE) :
      TRootSnifferStore(),
      fBuf(&_buf),
      fCompact(_compact) {}

   virtual ~TRootSnifferStoreXml() {}

   virtual void CreateNode(Int_t lvl, const char *nodename);
   virtual void SetField(Int_t lvl, const char *field, const char *value, Bool_t);
   virtual void BeforeNextChild(Int_t lvl, Int_t nchld, Int_t);
   virtual void CloseNode(Int_t lvl, Int_t numchilds);

   virtual Bool_t IsXml() const
   {
      return kTRUE;
   }

   ClassDef(TRootSnifferStoreXml, 0) // xml results store of objects sniffer
};

// ========================================================================

/** Storage of hierarchy scan in TRootSniffer in JSON format */

class TRootSnifferStoreJson : public TRootSnifferStore {
protected:
   TString *fBuf;     //! output buffer
   Bool_t fCompact;   //! produce compact json code
public:
   TRootSnifferStoreJson(TString &_buf, Bool_t _compact = kFALSE) :
      TRootSnifferStore(),
      fBuf(&_buf),
      fCompact(_compact) {}
   virtual ~TRootSnifferStoreJson() {}

   virtual void CreateNode(Int_t lvl, const char *nodename);
   virtual void SetField(Int_t lvl, const char *field, const char *value, Bool_t with_quotes);
   virtual void BeforeNextChild(Int_t lvl, Int_t nchld, Int_t nfld);
   virtual void CloseNode(Int_t lvl, Int_t numchilds);

   ClassDef(TRootSnifferStoreJson, 0) // json results store of objects sniffer
};


#endif