////////////////////////////////////////////////////////////////////////////////

// Distributed under the Boost Software License, Version 1.0. //

// (See accompanying file LICENSE or copy at //

// https://www.boost.org/LICENSE_1_0.txt) //

////////////////////////////////////////////////////////////////////////////////

#include "log/basic_formatter.h"

#include <chrono>

#include <filesystem>

#include <iomanip>

#include <iostream>

#include <sstream>

#include <string>

#include "log/log_level.h"

namespace

{

/**

* Helper function to extract just the filename from a full path.

*

* @param filename

* Filename to extract from.

*

* @returns

* Filename from supplied string.

*/

std::string format_filename(const std::string &filename)

{

// find last occurrence of file separator

const auto index = filename.rfind(std::filesystem::path::preferred_separator);

return std::string{filename.substr(index + 1)};

}

/**

* Convert log level to string and get first character.

*

* @param level

* Log level to get first character of.

*

* @returns

* First character of log level.

*/

char first_char_of_level(const iris::LogLevel level)

{

std::stringstream strm{};

strm << level;

const auto str = strm.str();

return !str.empty() ? str.front() : 'U';

}

}

namespace iris

{

std::string BasicFormatter::format(

const LogLevel level,

const std::string &tag,

const std::string &message,

const std::string &filename,

const int line)

{

const auto now = std::chrono::system_clock::now();

const auto seconds = std::chrono::duration_cast<std::chrono::seconds>(now.time_since_epoch());

std::stringstream strm{};

strm << first_char_of_level(level) << " " << seconds.count() << " [" << tag << "] " << format_filename(filename)

<< ":" << line << " | " << message;

return strm.str();

}

}