// Copyright Leon Freist
// Author Leon Freist <freist@informatik.uni-freiburg.de>

#pragma once

#include <hwinfo/platform.h>
#include <hwinfo/utils/wmi_wrapper.h>

#include <string>
#include <vector>

namespace hwinfo {

#ifdef HWINFO_UNIX
struct Jiffies {
  Jiffies() {
    working = -1;
    all = -1;
  }

  Jiffies(int64_t _all, int64_t _working) {
    all = _all;
    working = _working;
  }

  int64_t working;
  int64_t all;
};
#endif

class HWINFO_API CPU {
  friend std::vector<CPU> getAllCPUs();

 public:
  ~CPU() = default;

  int id() const;
  const std::string& modelName() const;
  const std::string& vendor() const;
  int64_t L1CacheSize_Bytes() const;
  int64_t L2CacheSize_Bytes() const;
  int64_t L3CacheSize_Bytes() const;
  int numPhysicalCores() const;
  int numLogicalCores() const;
  int64_t maxClockSpeed_MHz() const;
  int64_t regularClockSpeed_MHz() const;
  int64_t currentClockSpeed_MHz(int thread_id) const;
  std::vector<int64_t> currentClockSpeed_MHz() const;
  double currentUtilisation() const;
  double threadUtilisation(int thread_index) const;
  std::vector<double> threadsUtilisation() const;
  // double currentTemperature_Celsius() const;
  const std::vector<std::string>& flags() const;

 private:
#ifndef HWINFO_WINDOWS
  void init_jiffies() const;
#endif
  CPU() = default;

  int _id{-1};
  std::string _modelName;
  std::string _vendor;
  int _numPhysicalCores{-1};
  int _numLogicalCores{-1};
  int64_t _maxClockSpeed_MHz{-1};
  int64_t _regularClockSpeed_MHz{-1};
  int64_t _L1CacheSize_Bytes{-1};
  int64_t _L2CacheSize_Bytes{-1};
  int64_t _L3CacheSize_Bytes{-1};
  std::vector<std::string> _flags{};

  mutable bool _jiffies_initialized = false;
};

std::vector<CPU> getAllCPUs();

}  // namespace hwinfo