text: //
  // Copyright(c) 2015-2018 Gabi Melman.
  // Distributed under the MIT License (http://opensource.org/licenses/MIT)
  //
  // spdlog main header file.
  // see example.cpp for usage example
  
  #pragma once
  
  #include "spdlog/common.h"
  #include "spdlog/details/registry.h"
  #include "spdlog/logger.h"
  
  #include <chrono>
  #include <functional>
  #include <memory>
  #include <string>
  
  namespace spdlog {
  
  // Default logger factory-  creates synchronous loggers
  struct synchronous_factory
  {
      template<typename Sink, typename... SinkArgs>
  
      static std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&... args)
      {
          auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
          auto new_logger = std::make_shared<logger>(std::move(logger_name), std::move(sink));
          details::registry::instance().register_and_init(new_logger);
          return new_logger;
      }
  };
  
  using default_factory = synchronous_factory;
  
  // Create and register a logger with a templated sink type
  // The logger's level, formatter and flush level will be set according the global settings.
  // Example:
  // spdlog::create<daily_file_sink_st>("logger_name", "dailylog_filename", 11, 59);
  template<typename Sink, typename... SinkArgs>
  inline std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&... sink_args)
  {
      return default_factory::create<Sink>(std::move(logger_name), std::forward<SinkArgs>(sink_args)...);
  }
  
  
  // Return an existing logger or nullptr if a logger with such name doesn't exist.
  // example: spdlog::get("my_logger")->info("hello {}", "world");
  inline std::shared_ptr<logger> get(const std::string &name)
  {
      return details::registry::instance().get(name);
  }
  
  // Set global formatting
  // example: spdlog::set_pattern("%Y-%m-%d %H:%M:%S.%e %l : %v");
  inline void set_pattern(std::string format_string, pattern_time_type time_type = pattern_time_type::local)
  {
      details::registry::instance().set_pattern(std::move(format_string), time_type);
  }
  
  // Set global logging level
  inline void set_level(level::level_enum log_level)
  {
      details::registry::instance().set_level(log_level);
  }
  
  // Set global flush level
  inline void flush_on(level::level_enum log_level)
  {
      details::registry::instance().flush_on(log_level);
  }
  
  // Set global error handler
  inline void set_error_handler(log_err_handler handler)
  {
      details::registry::instance().set_error_handler(std::move(handler));
  }
  
  // Register the given logger with the given name
  inline void register_logger(std::shared_ptr<logger> logger)
  {
      details::registry::instance().register_logger(std::move(logger));
  }
  
  // Apply a user defined function on all registered loggers
  // Example:
  // spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) {l->flush();});
  inline void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
  {
      details::registry::instance().apply_all(std::move(fun));
  }
  
  // Drop the reference to the given logger
  inline void drop(const std::string &name)
  {
      details::registry::instance().drop(name);
  }
  
  // Drop all references from the registry
  inline void drop_all()
  {
      details::registry::instance().drop_all();
  }
  
  ///////////////////////////////////////////////////////////////////////////////
  //
  // Trace & Debug can be switched on/off at compile time for zero cost debug statements.
  // Uncomment SPDLOG_DEBUG_ON/SPDLOG_TRACE_ON in tweakme.h to enable.
  // SPDLOG_TRACE(..) will also print current file and line.
  //
  // Example:
  // spdlog::set_level(spdlog::level::trace);
  // SPDLOG_TRACE(my_logger, "some trace message");
  // SPDLOG_TRACE(my_logger, "another trace message {} {}", 1, 2);
  // SPDLOG_DEBUG(my_logger, "some debug message {} {}", 3, 4);
  ///////////////////////////////////////////////////////////////////////////////
  
  #ifdef SPDLOG_TRACE_ON
  #define SPDLOG_STR_H(x) #x
  #define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
  #ifdef _MSC_VER
  #define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
  #else
  #define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
  #endif
  #else
  #define SPDLOG_TRACE(logger, ...) (void)0
  #endif
  
  #ifdef SPDLOG_DEBUG_ON
  #define SPDLOG_DEBUG(logger, ...) logger->debug(__VA_ARGS__)
  #else
  #define SPDLOG_DEBUG(logger, ...) (void)0
  #endif
  
  } // namespace spdlog
  