// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#ifndef TGO4SNIFFER_H
#define TGO4SNIFFER_H

#include "TRootSnifferFull.h"
#include "TGo4AnalysisSniffer.h"
#include "TGo4MsgList.h"

class TGo4AnalysisWebStatus;
class TGraph;
class TGo4Ratemeter;
class THttpServer;

class TGo4Sniffer : public TRootSnifferFull,
                    public TGo4AnalysisSniffer {

   protected:

      TGo4AnalysisWebStatus *fAnalysisStatus{nullptr};

      TGraph *fEventRate{nullptr};

      TGo4Ratemeter *fRatemeter{nullptr};

      TGo4MsgList fDebugOutput;

      TGo4MsgList fStatusMessages;

      /** if true, python binding of go4 has already been done.*/
      Bool_t fbPythonBound{kFALSE};

      TString fAutoLoadArg;

      void ScanObjectProperties(TRootSnifferScanRec &rec, TObject *obj) override;

      /** Send message to gui - need to be implemented */
      virtual void SendStatusMessage(Int_t level, Bool_t printout, const TString &text);

      /** Indicate that Restrict method implemented, also commands with arguments are exists */
      Bool_t HasRestrictMethod();

      /** Indicate that sniffer has MultiProcess method implemented, can be used from GUI */
      Bool_t HasProduceMultiMethod();

      /** Wrapper for new method in TRootSniffer */
      void RestrictGo4(const char *path, const char *options);

      /** Indicate if SetAutoLoad method exists */
      Bool_t HasAutoLoadMethod();

      /** Wrapper for new method in TRootSniffer */
      Bool_t SetAutoLoadGo4(const char *script);

      static THttpServer *gHttpServer;

   public:

      static THttpServer *GetHttpServer();

      static Bool_t CreateEngine(const char *name);

      TGo4Sniffer(const char *name);
      virtual ~TGo4Sniffer();

      void ScanRoot(TRootSnifferScanRec &rec) override;

      void *FindInHierarchy(const char *path, TClass **cl = nullptr, TDataMember **member = nullptr, Int_t *chld = nullptr) override;

      // ========= methods registered as command and available from web interface =========

      Bool_t CmdStart();
      Bool_t CmdStop();
      Bool_t CmdClear();
      Bool_t CmdRestart();
      Bool_t CmdClose();
      Bool_t CmdOpenFile(const char *fname);
      Bool_t CmdCloseFiles();
      Bool_t CmdExit();
      Bool_t CmdClearObject(const char *objname);
      Bool_t CmdDeleteObject(const char *objname);
      Bool_t CmdExecute(const char *exeline);

      // === methods used via http interface by Go4GUI ===============

      Bool_t AddAnalysisObject(TObject *obj);

      Bool_t RemoteTreeDraw(const char *histoname,
                            const char *treename,
                            const char *varexpr,
                            const char *cutexpr);

      TObject *CreateItemStatus(const char *itemname);

      /** Method called by logger with every string, going to output */
      void SetTitle(const char *title = "") override;

      /** Method from analysis sniffer */
      void RatemeterUpdate(TGo4Ratemeter *) override;

      /** Method from analysis sniffer */
      void StatusMessage(int level, Bool_t printout, const TString &) override;

      /** Method called in go4 analysis thread, used to executed server commands */
      void ProcessSnifferEvents() override;


   ClassDefOverride(TGo4Sniffer, 1); // Sniffer of Go4 analysis objects for THttpServer
};


#endif