webserv/webserv/log/Log.hpp

97 lines
3.5 KiB
C++

#pragma once
#include <array> // for array
#include <chrono> // for steady_clock
#include <cstdint> // for uint8_t
#include <ios> // for ios_base
#include <map> // for map
#include <memory> // for unique_ptr
#include <string> // for string, basic_string, hash
#include <string_view> // for string_view
#include <unordered_map> // for unordered_map
class Channel; // Forward declaration
constexpr const char *extractFilename(const char *path)
{
const char *filename = path;
while (*path != '\0')
{
if (*path == '/' || *path == '\\')
{
filename = path + 1; // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic)
}
++path; // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic)
}
return filename;
}
#define LOCATION \
(std::string(extractFilename(__FILE__)) + ":" + std::to_string(__LINE__) + " (" + std::string(__FUNCTION__) + ")")
class Log
{
public:
Log(const Log &other) = delete;
Log(Log &&other) = delete;
Log &operator=(const Log &other) = delete;
Log &operator=(Log &&other) = delete;
enum class Level : uint8_t
{
Trace = 0,
Debug = 1,
Info = 2,
Warn = 3,
Error = 4,
Fatal = 5
};
void log(Level level, const std::string &message, const std::map<std::string, std::string> &context);
static constexpr Log::Level COMPILE_TIME_LOG_LEVEL = Log::Level::Trace;
static void setFileChannel(const std::string &filename, std::ios_base::openmode mode = std::ios_base::app);
static void setStdoutChannel();
static int getElapsedTime();
static void trace(const std::string &message, const std::map<std::string, std::string> &context = {});
static void debug(const std::string &message, const std::map<std::string, std::string> &context = {});
static void info(const std::string &message, const std::map<std::string, std::string> &context = {});
static void warning(const std::string &message, const std::map<std::string, std::string> &context = {});
static void error(const std::string &message, const std::map<std::string, std::string> &context = {});
static void fatal(const std::string &message, const std::map<std::string, std::string> &context = {});
static std::string logLevelToString(Level level);
static const char *logLevelToColor(Level level);
static std::string logLevelToColoredString(Level level);
static Level stringToLogLevel(const std::string &level);
private:
Log();
~Log() = default;
static Log &getInstance();
std::chrono::steady_clock::time_point start_time_;
std::unordered_map<std::string, std::unique_ptr<Channel>> channels_;
struct LevelMapping
{
Level level;
std::string_view name;
const char *color;
};
constexpr static std::array<LevelMapping, 6> LOG_LEVEL_MAP
= {{{.level = Log::Level::Trace, .name = "TRACE", .color = "\033[36m"},
{.level = Log::Level::Debug, .name = "DEBUG", .color = "\033[90m"},
{.level = Log::Level::Info, .name = "INFO", .color = "\033[37m"},
{.level = Log::Level::Warn, .name = "WARN", .color = "\033[33m"},
{.level = Log::Level::Error, .name = "ERROR", .color = "\033[31m"},
{.level = Log::Level::Fatal, .name = "FATAL", .color = "\033[1;31m"}}};
constexpr static const char *RESET_COLOR = "\033[0m";
};