// GPGEdit edits GPG encrypted files
// Copyright (C) 2018  Aaron Ball <nullspoon@oper.io>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

#include "logger.h"


int _log_level  = LOG_INFO;  // Global log level, set by logger_init().


// logger_init:
// Initialize the logger-related variables.
//
// @lvl   Integer representing log level. Use LOG_* macros (eg: LOG_ERROR,
//        LOG_DEBUG, LOG_INFO, etc)
void logger_init(int lvl) {
  _log_level  = lvl;
}


// logger:
// Logger function. Writes log messages to stdout if specified message level is
// less than or equal to the runtime global log level. Global log level is set
// by logger_init.
//
// @lvl      Integer representing log level
// @format   Format (like printf) of message
// @...      Additional arguments for printf statement.
void logger(int lvl, char* format, ...) {
  va_list valist;
  va_start(valist, format);

  if(lvl <= _log_level) {
    if(lvl == LOG_DEBUG)
      printf("DEBUG: ");

    if(lvl == LOG_FATAL)
      printf("FATAL: ");

    if(lvl == LOG_ERROR)
      printf("ERROR: ");

    if(lvl == LOG_ERROR)
      printf("WARN: ");

    vprintf(format, valist);
  }

  va_end(valist);
}