Profiler.h

//
//  Profiler.h
//  avara3d
//
//  Created by Morgan Davis on 12/6/25.
//  Copyright © 2026 Morgan K Davis. All rights reserved.
//
 
#ifndef AVARA3D_PROFILE_PROFILER_H
#define AVARA3D_PROFILE_PROFILER_H
 
#include <chrono>
#include <map>
#include <string>
 
namespace a3d {
 
    class Profiler {
 
    public:
        // [Internal Types]
 
        enum class Tag {
            Frame,
            EngineCpu,
            RenderCpu,
            RenderGpu,
            Physics,
            Application
        };
 
        // [Internal Lifecycle Functions]
 
        Profiler() = default;
 
        Profiler(const Profiler&)            = delete;
        Profiler& operator=(const Profiler&) = delete;
 
        Profiler(Profiler&&)            = delete;
        Profiler& operator=(Profiler&&) = delete;
 
        // [Internal Member Functions]
 
        void      add(Tag tag, std::chrono::nanoseconds ns) noexcept;
        void      add(const std::string& key, std::chrono::nanoseconds ns) noexcept; // ! untested
 
        // ! TEMPORARY !
//      void subtract(Tag tag, std::chrono::nanoseconds ns); // ! untested
//      void subtract(const std::string& key, std::chrono::nanoseconds ns); // ! untested
 
        std::chrono::nanoseconds time(Tag tag);
        std::chrono::nanoseconds time(const std::string& key); // ! untested
 
        void                     reset();
 
    private:
        // [Private Member Variables]
 
        std::map<Tag, std::chrono::nanoseconds>         _taggedSamples;
        std::map<std::string, std::chrono::nanoseconds> _keyedSamples;
    };
 
}
 
#endif // AVARA3D_PROFILE_PROFILER_H