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// ********************************************************************
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//
// G4TiMemory
//
// Description:
//
// Provides empty macros when Geant4 is compiled with TiMemory disabled

// Author: Jonathan R. Madsen, 25 April 2019
// --------------------------------------------------------------------
#ifndef g4timemory_hh
#define g4timemory_hh 1

// Fundamental definitions
#ifndef G4GMAKE
#  include "G4GlobalConfig.hh"
#endif

#include "globals.hh"

#include <cstddef>
#include <functional>
#include <string>
#include <utility>

//----------------------------------------------------------------------------//

#ifdef GEANT4_USE_TIMEMORY

#  include <timemory/timemory.hpp>

namespace g4tim
{
using namespace tim;
}  // namespace g4tim

using G4AutoTimer = g4tim::auto_timer;

#else

#  include <ostream>
#  include <string>

namespace g4tim
{

  /// this provides "functionality" for *_HANDLE macros
  /// and can be omitted if these macros are not utilized
  struct dummy
  {
    template <typename... _Types, typename... _Args>
    static void configure(_Args&&...)
    {}
    template <typename... _Args>
    dummy(_Args&&...)
    {}
    ~dummy()            = default;
    dummy(const dummy&) = default;
    dummy(dummy&&)      = default;
    dummy& operator=(const dummy&) = default;
    dummy& operator=(dummy&&) = default;

    void record() {}
    void start() {}
    void stop() {}
    void push() {}
    void pop() {}
    void reset() {}
    void report_at_exit(bool) {}
    template <typename... _Args>
    void mark_begin(_Args&&...)
    {}
    template <typename... _Args>
    void mark_end(_Args&&...)
    {}
    friend std::ostream& operator<<(std::ostream& os, const dummy&)
    {
      return os;
    }
  };

}  // namespace g4tim

// startup/shutdown/configure
#  define TIMEMORY_INIT(...)
#  define TIMEMORY_FINALIZE()
#  define TIMEMORY_CONFIGURE(...)

// label creation
#  define TIMEMORY_BASIC_LABEL(...) std::string("")
#  define TIMEMORY_LABEL(...) std::string("")
#  define TIMEMORY_JOIN(...) std::string("")

// define an object
#  define TIMEMORY_BLANK_MARKER(...)
#  define TIMEMORY_BASIC_MARKER(...)
#  define TIMEMORY_MARKER(...)

// define an unique pointer object
#  define TIMEMORY_BLANK_POINTER(...)
#  define TIMEMORY_BASIC_POINTER(...)
#  define TIMEMORY_POINTER(...)

// define an object with a caliper reference
#  define TIMEMORY_BLANK_CALIPER(...)
#  define TIMEMORY_BASIC_CALIPER(...)
#  define TIMEMORY_CALIPER(...)

// define a static object with a caliper reference
#  define TIMEMORY_STATIC_BLANK_CALIPER(...)
#  define TIMEMORY_STATIC_BASIC_CALIPER(...)
#  define TIMEMORY_STATIC_CALIPER(...)

// invoke member function on caliper reference or type within reference
#  define TIMEMORY_CALIPER_APPLY(...)
#  define TIMEMORY_CALIPER_TYPE_APPLY(...)

// get an object
#    define TIMEMORY_BLANK_HANDLE(...) g4tim::dummy()
#    define TIMEMORY_BASIC_HANDLE(...) g4tim::dummy()
#  define TIMEMORY_HANDLE(...) tim::dummy()

// get a pointer to an object
#  define TIMEMORY_BLANK_POINTER_HANDLE(...) nullptr
#  define TIMEMORY_BASIC_POINTER_HANDLE(...) nullptr
#  define TIMEMORY_POINTER_HANDLE(...) nullptr

// debug only
#  define TIMEMORY_DEBUG_BLANK_MARKER(...)
#  define TIMEMORY_DEBUG_BASIC_MARKER(...)
#  define TIMEMORY_DEBUG_MARKER(...)

// auto-timers
#  define TIMEMORY_BLANK_AUTO_TIMER(...)
#  define TIMEMORY_BASIC_AUTO_TIMER(...)
#  define TIMEMORY_AUTO_TIMER(...)
#  define TIMEMORY_BLANK_AUTO_TIMER_HANDLE(...)
#  define TIMEMORY_BASIC_AUTO_TIMER_HANDLE(...)
#  define TIMEMORY_AUTO_TIMER_HANDLE(...)
#  define TIMEMORY_DEBUG_BASIC_AUTO_TIMER(...)
#  define TIMEMORY_DEBUG_AUTO_TIMER(...)

using G4AutoTimer = g4tim::dummy;

#endif

//----------------------------------------------------------------------------//

#endif