ls-standard-library/source/ls-std/io/logging/Logger.cpp

/*
 * Author:          Patrick-Christopher Mattulat
 * Company:         Lynar Studios
 * E-Mail:          webmaster@lynarstudios.com
 * Created:         2020-08-20
 * Changed:         2023-02-22
 *
 * */

#include <ctime>
#include <iomanip>
#include <ls-std/core/evaluator/NullPointerArgumentEvaluator.hpp>
#include <ls-std/io/NewLine.hpp>
#include <ls-std/io/logging/Logger.hpp>
#if defined(_MSC_VER) || defined(__APPLE__)
  #include <sstream>
#endif

ls::std::io::Logger::Logger(const ::std::shared_ptr<ls::std::core::interface_type::IWriter> &_writer) : ls::std::core::Class("Logger"), logLevel(ls::std::io::LogLevelValue::INFO)
{
  this->_assignWriter(_writer);
}

ls::std::io::Logger::~Logger() noexcept = default;

void ls::std::io::Logger::debug(const ls::std::core::type::byte *_data)
{
  if (this->logLevel >= ls::std::io::LogLevelValue::DEBUG)
  {
    this->_log(_data, ls::std::io::LogLevel(ls::std::io::LogLevelValue::DEBUG));
  }
}

void ls::std::io::Logger::error(const ls::std::core::type::byte *_data)
{
  if (this->logLevel >= ls::std::io::LogLevelValue::ERR)
  {
    this->_log(_data, ls::std::io::LogLevel(ls::std::io::LogLevelValue::ERR));
  }
}

void ls::std::io::Logger::fatal(const ls::std::core::type::byte *_data)
{
  if (this->logLevel >= ls::std::io::LogLevelValue::FATAL)
  {
    this->_log(_data, ls::std::io::LogLevel(ls::std::io::LogLevelValue::FATAL));
  }
}

ls::std::io::LogLevel ls::std::io::Logger::getLogLevel()
{
  return this->logLevel;
}

void ls::std::io::Logger::info(const ls::std::core::type::byte *_data)
{
  if (this->logLevel >= ls::std::io::LogLevelValue::INFO)
  {
    this->_log(_data, ls::std::io::LogLevel(ls::std::io::LogLevelValue::INFO));
  }
}

void ls::std::io::Logger::setLogLevel(const ls::std::io::LogLevelValue &_logLevelValue)
{
  this->logLevel = _logLevelValue;
}

void ls::std::io::Logger::trace(const ls::std::core::type::byte *_data)
{
  if (this->logLevel >= ls::std::io::LogLevelValue::TRACE)
  {
    this->_log(_data, ls::std::io::LogLevel(ls::std::io::LogLevelValue::TRACE));
  }
}

void ls::std::io::Logger::warn(const ls::std::core::type::byte *_data)
{
  if (this->logLevel >= ls::std::io::LogLevelValue::WARN)
  {
    this->_log(_data, ls::std::io::LogLevel(ls::std::io::LogLevelValue::WARN));
  }
}

void ls::std::io::Logger::_assignWriter(const ::std::shared_ptr<ls::std::core::interface_type::IWriter> &_writer)
{
  ls::std::core::NullPointerArgumentEvaluator{_writer, "writer reference is null!"}.evaluate();
  this->writer = _writer;
}

::std::string ls::std::io::Logger::_buildCharacterChain(size_t _amount)
{
  ::std::string fillContent{};

  for (size_t iteration{}; iteration < _amount; iteration++)
  {
    fillContent += ' ';
  }

  return fillContent;
}

::std::string ls::std::io::Logger::_createFillContent(const ::std::string &_text)
{
  size_t padSize = 10;
  size_t fillSize = _text.size() > padSize ? 0 : padSize - _text.size();
  ::std::string fillContent{};

  if (fillSize > 0)
  {
    fillContent = ls::std::io::Logger::_buildCharacterChain(fillSize);
  }

  return fillContent;
}

::std::string ls::std::io::Logger::_generateTimeString(tm *_localTime)
{
  ::std::stringstream _stream{};
  _stream << ::std::put_time(_localTime, "%Y-%m-%d %H:%M:%S");

  return _stream.str();
}

void ls::std::io::Logger::_log(const ls::std::core::type::byte *_data, const ls::std::io::LogLevel &_logLevel)
{
  time_t timestamp = ::std::time(nullptr);
  tm *localTime = ::std::localtime(&timestamp);

  ::std::string logLevelString = ls::std::io::Logger::_padRight(::std::string{_logLevel.toString() + ":"});
  ::std::string message = "[" + ls::std::io::Logger::_generateTimeString(localTime) + "] " + logLevelString + ::std::string(_data) + ls::std::io::NewLine::getUnixNewLine();
  this->writer->write(message);
}

::std::string ls::std::io::Logger::_padRight(const ::std::string &_text)
{
  return _text + ls::std::io::Logger::_createFillContent(_text);
}