<?php
namespace logger {
    define('DS', DIRECTORY_SEPARATOR);
    defined('DEBUG_LOGGER') or define('DEBUG_LOGGER', true);
    defined('DIR_LOG') or define('DIR_LOG', $_SERVER['DOCUMENT_ROOT'] . DS . 'upload' . DS . 'log' . DS);

    final class CLogger
    {
        private static $fileExtension = '.log';


        private static function initDir($dirName)
        {
            if (empty($dirName) === true || \is_string($dirName) === false) {
                if (self::isDebug() === true) {
                    throw new \Exception('Invalid DirName: ' . $dirName);
                } else {
                    return false;
                }
            }
            $dirLogger = $dirName . self::getActualDirName() . DS;
            if (\file_exists($dirLogger) === false) {
                if (\mkdir($dirLogger, 0755, true) === false) {
                    if (self::isDebug() === true) {
                        throw new \Exception('Not Create Folder: ' . $dirLogger);
                    } else {
                        return false;
                    }
                }
            }
            return $dirLogger;
        }

        public static function addLog(/*args*/)
        {
            $args = \func_get_args();
            $key = \array_shift($args);
            $dirLogger = self::initDir(DIR_LOG . $key . DS);
            if ($dirLogger === false)
                return false;


            \array_unshift($args, date('H:i:s'));
            $argsToSave = \implode("\r\n", $args) . "\r\n" . '--------------------------------------------------------------------' . "\r\n\n";
            $fileFullPath = $dirLogger . \date('H') . self::getFileExtension();
            if (\file_put_contents($fileFullPath, \print_r($argsToSave, true), FILE_APPEND) === false) {
                if (self::isDebug() === true) {
                    throw  new \Exception('Not Write To File: ' . $fileFullPath);
                } else {
                    return false;
                }
            }
            return true;
        }

        private static function getActualDirName($format = 'Y-m-d')
        {
            return \date($format);
        }

        private static function getFileExtension()
        {
            return self::$fileExtension;
        }

        private static function isDebug()
        {
            return (\defined('DEBUG_LOGGER') && (DEBUG_LOGGER === true));
        }
    }
}