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#include "log.h"

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#include <stdio.h>

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#include <stdarg.h>

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#define _LOG_LEVEL_NAME(ll) case LOG_ ## ll: return #ll;

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const char *log_level_name (enum log_level level)

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{

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    switch (level) {

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        _LOG_LEVEL_NAME(DEBUG)

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        _LOG_LEVEL_NAME(INFO)

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        _LOG_LEVEL_NAME(WARN)

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        _LOG_LEVEL_NAME(ERROR)

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        _LOG_LEVEL_NAME(FATAL)

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        default: return "???";

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    }

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}

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/*

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 * Output the "[TYPE] FUNC: " header

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 */

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void _log_header (enum log_level level, const char *func)

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{

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    printf("[%5s] %s: ", log_level_name(level), func);

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}

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void log_msg (enum log_level level, const char *func, const char *format, ...)

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{

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    va_list vargs;

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    _log_header(level, func);

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    // formatted output

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    va_start(vargs, format);

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    vprintf(format, vargs);

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    va_end(vargs);

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    // newline

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    printf("\n");

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}

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void _log_err (err_t err, const char *func, const char *format, ...)

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{

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    va_list vargs;

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    // header

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    _log_header(LOG_ERROR, func);

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    // formatted output

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    va_start(vargs, format);

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    vprintf(format, vargs);

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    va_end(vargs);

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    // err_code and newline

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    printf(": %s\n", error_name(err));

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}

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void _log_err_info (struct error_info *err, const char *func, const char *format, ...)

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{

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    va_list vargs;

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    // header

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    _log_header(LOG_ERROR, func);

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    // formatted output

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    va_start(vargs, format);

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    vprintf(format, vargs);

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    va_end(vargs);

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    // err_code and newline

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    printf(": %s\n", error_msg(err));

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}