CaToolsDebugger.h

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/* Copyright (C) 2022 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Sergey Gorbunov[committer] */
 
 
#ifndef CaToolsDebugger_h
#define CaToolsDebugger_h 1
 
#include <iostream>
#include <vector>
 
class TFile;
class TNtuple;
 
namespace cbm::ca::tools
{
  class Debugger {
   public:
    // *****************************************
    // **     Constructors and destructor     **
    // *****************************************
 
 
    Debugger(const char* fileName = "CAdebug.root");
 
    ~Debugger();
 
    Debugger(const Debugger& other) = delete;
 
    Debugger(Debugger&& other) = delete;
 
    Debugger& operator=(const Debugger& other) = delete;
 
    Debugger& operator=(Debugger&& other) = delete;
 
    static Debugger& Instance();
 
    void Write();
 
    void AddNtuple(const char* name, const char* varlist);
 
    void FillNtuple(const char* name, float v[]);
 
    template<typename... Targs>
    void FillNtuple(const char* name, Targs... args)
    {
      constexpr std::size_t n = sizeof...(Targs);
      if (n <= 0) return;
      float v[n];
      FillFloatArray(v, args...);
      FillNtuple(name, v);
    }
 
    int GetNtupleIndex(const char* name);
 
   private:
    template<typename T, typename... Targs>
    void FillFloatArray(float* v, T val, Targs... args)
    {
      v[0] = (float) val;
      if (sizeof...(args) > 0) {
        FillFloatArray(v + 1, args...);
      }
    }
 
    template<typename T>
    void FillFloatArray(float* v, T last)
    {
      v[0] = (float) last;
    }
 
   private:
    std::string fFileName{"CAdebug.root"};
    bool fIsWritten{0};
    TFile* fFile{nullptr};
    std::vector<TNtuple*> fNtuples;
  };
}  // namespace cbm::ca::tools
 
#endif  // CaToolsDebugger_h