/**

* ArduinoSimpleLogging

*

* https://github.com/janLo/ArduinoSimpleLogging

*

* Copyright (c) 2017 Jan Losinski.

* MIT License

*/

#ifndef ARDUINOLOGGING_H

#define ARDUINOLOGGING_H

#include <forward_list>

#include <Print.h>

class ArduinoSimpleLogging {

public:

enum Level {

ERROR = 0x01,

WARNING = (0x01 << 1),

INFO = (0x01 << 2),

DEBUG = (0x01 << 3)

};

class LogTarget : public Print {

public:

explicit LogTarget(const Level level) : _level(level) {}

LogTarget(const LogTarget &) = delete;

LogTarget(const LogTarget &&) = delete;

size_t write(uint8_t) override;

size_t write(const uint8_t *buffer, size_t size) override;

private:

Level _level;

};

static LogTarget debug;

static LogTarget info;

static LogTarget warning;

static LogTarget error;

size_t log(Level level, const uint8_t *buffer, size_t size);

size_t log(Level level, uint8_t);

void addHandler(Level level, Print &);

void removeHandler(Print &);

static String levelToString(Level level);

static Level stringToLevel(const String &levelName);

private:

struct LogHandler {

const uint8_t mask;

Print &stream;

static uint8_t makeMask(Level level);

LogHandler(Level level, Print &stream)

: mask(makeMask(level)), stream(stream) {}

};

std::forward_list<LogHandler> handlers;

};

extern ArduinoSimpleLogging Logger;

#endif // ARDUINOLOGGING_H