text: // The MIT License (MIT)
  //
  // Copyright (c) 2015-2017 Simon Ninon <simon.ninon@gmail.com>
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy
  // of this software and associated documentation files (the "Software"), to deal
  // in the Software without restriction, including without limitation the rights
  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  // copies of the Software, and to permit persons to whom the Software is
  // furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in all
  // copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  // SOFTWARE.
  
  #include <iostream>
  
  #include <cpp_redis/logger.hpp>
  
  namespace cpp_redis {
  
  std::unique_ptr<logger_iface> active_logger = nullptr;
  
  static const char normal[] = {0x1b, '[', '0', ';', '3', '9', 'm', 0};
  static const char black[]  = {0x1b, '[', '1', ';', '3', '0', 'm', 0};
  static const char red[]    = {0x1b, '[', '1', ';', '3', '1', 'm', 0};
  static const char green[]  = {0x1b, '[', '0', ';', '3', '2', 'm', 0};
  static const char yellow[] = {0x1b, '[', '1', ';', '3', '3', 'm', 0};
  static const char blue[]   = {0x1b, '[', '1', ';', '3', '4', 'm', 0};
  static const char purple[] = {0x1b, '[', '0', ';', '3', '5', 'm', 0};
  static const char cyan[]   = {0x1b, '[', '0', ';', '3', '6', 'm', 0};
  
  logger::logger(log_level level)
  : m_level(level) {}
  
  /* General Purpose */
  void logger::error(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::error) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cerr << "[" << red << "ERROR" << normal << "][" << file << ":" << line << "] " << red << msg << normal << std::endl;
    }
  }
  
  void logger::warn(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::warn) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cout << "[" << yellow << "WARN" << normal << "][" << file << ":" << line << "] " << yellow << msg << normal << std::endl;
    }
  }
  
  void logger::info(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::info) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cout << "[INFO][" << file << ":" << line << "] " << msg << std::endl;
    }
  }
  
  void logger::debug(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::debug) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cout << "[" << blue << "DEBUG" << normal << "][" << file << ":" << line << "] " << blue << msg << normal << std::endl;
    }
  }
  
  /* Internal use */
  void logger::vinfo(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::vinfo) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cout << "[" << purple << "VINFO" << normal << "][" << file << ":" << line << "] " << msg << std::endl;
    }
  }
  
  void logger::vdebug(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::vdebug) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cout << "[" << purple << "VDEBUG" << green << "][" << file << ":" << line << "] " << msg << std::endl;
    }
  }
  
  /* Everything */
  void logger::vall(const std::string& msg, const std::string& file, std::size_t line) {
    if (m_level >= log_level::vall) {
      std::lock_guard<std::mutex> lock(m_mutex);
      std::cout << normal << "[" << purple << "VALL" << purple << "][" << file << ":" << line << "] " << msg << std::endl;
    }
  }
  
  
  /* General Purpose */
  void error(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->error(msg, file, line);
  }
  void warn(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->warn(msg, file, line);
  }
  void info(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->info(msg, file, line);
  }
  void debug(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->debug(msg, file, line);
  }
  
  /* Internal use */
  void vinfo(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->vinfo(msg, file, line);
  }
  void vdebug(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->vdebug(msg, file, line);
  }
  
  /* Everything */
  void vall(const std::string& msg, const std::string& file, std::size_t line) {
    if (active_logger)
      active_logger->vall(msg, file, line);
  }
  
  
  
  
  } //! cpp_redis
  