<?php

namespace YoastSEO_Vendor;

/**
 * Ruckusing
 *
 * @category  Ruckusing
 * @package   Ruckusing_Util
 * @author    Cody Caughlan <codycaughlan % gmail . com>
 * @link      https://github.com/ruckus/ruckusing-migrations
 */
/**
 * Ruckusing_Util_Logger
 *
 * @category Ruckusing
 * @package  Ruckusing_Util
 * @author   Cody Caughlan <codycaughlan % gmail . com>
 * @link      https://github.com/ruckus/ruckusing-migrations
 */
class Ruckusing_Util_Logger
{
    /**
     * Instance of logger
     *
     * @var Ruckusing_Util_Logger
     */
    private static $_instance;
    /**
     * file
     *
     * @var string
     */
    private $_file = '';
    /**
     * File descriptor
     *
     * @var resource
     */
    private $_fp;
    /**
     * Creates an instance of Ruckusing_Util_Logger
     *
     * @param string $file the path to log to
     *
     * @return Ruckusing_Util_Logger
     */
    public function __construct($file)
    {
        $this->_file = $file;
        $this->_fp = \fopen($this->_file, "a+");
    }
    /**
     * Close the file descriptor
     *
     * @return void
     */
    public function __destruct()
    {
        $this->close();
    }
    /**
     * Singleton for the instance
     *
     * @param string $logfile the path to log to
     *
     * @return object
     */
    public static function instance($logfile)
    {
        if (self::$_instance !== \NULL) {
            return $instance;
        }
        $instance = new \YoastSEO_Vendor\Ruckusing_Util_Logger($logfile);
        return $instance;
    }
    /**
     * Log a message
     *
     * @param string $msg message to log
     */
    public function log($msg)
    {
        if ($this->_fp) {
            $ts = \date('M d H:i:s', \time());
            $line = \sprintf("%s [info] %s\n", $ts, $msg);
            \fwrite($this->_fp, $line);
        } else {
            throw new \YoastSEO_Vendor\Ruckusing_Exception(\sprintf("Error: logfile '%s' not open for writing!", $this->_file), \YoastSEO_Vendor\Ruckusing_Exception::INVALID_LOG);
        }
    }
    /**
     * Close the log file handler
     */
    public function close()
    {
        if ($this->_fp) {
            $closed = \fclose($this->_fp);
            if ($closed) {
                $this->_fp = null;
                self::$_instance = null;
            } else {
                throw new \YoastSEO_Vendor\Ruckusing_Exception('Error closing the log file', \YoastSEO_Vendor\Ruckusing_Exception::INVALID_LOG);
            }
        }
    }
}