logger.h

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#pragma once
 
#include <string>
#include <vector>
#include <fstream>
#include <sstream>
#include <iomanip>
 
// Windows header protection
#ifdef _WIN32
#ifndef NOMINMAX
#define NOMINMAX
#endif
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
// Undefine common Windows macros that might conflict
#ifdef ERROR
#undef ERROR
#endif
#ifdef DEBUG
#undef DEBUG
#endif
#ifdef INFO
#undef INFO
#endif
#ifdef WARNING
#undef WARNING
#endif
#ifdef CRITICAL
#undef CRITICAL
#endif
#endif // _WIN32
 
class Logger {
 
 public:
  // Explicitly scoped enumeration to avoid conflicts with Windows macros
  enum class Level : int { 
    DEBUG = 0, 
    INFO = 1, 
    WARNING = 2, 
    ERROR = 3, 
    CRITICAL = 4, 
    OFF = 5 
  };
 
  static void set_level(Level new_level);
  static Level get_level();
  static void set_logfile(const std::string& filename);
  static void enable_console(bool enabled);
 
  static void debug(const std::string& message);
  static void info(const std::string& message);
  static void warning(const std::string& message);
  static void error(const std::string& message);
  static void critical(const std::string& message);
  static void fatal(const std::string& message);
 
  // Helper to convert pointer to string for logging
  static std::string ptrToString(const void* ptr);
 
  // Helper to convert uint16_t to hex string for logging
  static std::string uint16ToHex(uint16_t val);
 
  // Templated helper to convert unsigned integral types to hex string
  template <typename T>
  static std::string to_hex(T val);
 
  // Helper for vector stats (if it's part of public API, otherwise private)
  static void log_vector_stats(const std::string& name, const std::vector<float>& v, int n_show = 5);
  static void log_vector_stats_int8(const std::string& name, const std::vector<int8_t>& v, int n_show = 5);
 
 private:
  static Level current_level_;
  static std::ofstream log_file_stream_;
  static std::string log_file_path_;
  static bool console_enabled_;
  static bool log_file_truncated_;
 
  static void log_internal(Level level, const std::string& message);
  static std::string level_to_string(Level level);
  static void ensure_logfile_open_and_truncated();
};