<?php

/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Symfony\Component\Console\Helper;

use Symfony\Component\Console\Formatter\OutputFormatterInterface;

/**
* Helper is the base class for all helper classes.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class Helper implements HelperInterface
{
protected $helperSet = null;

/**
* {@inheritdoc}
*/
public function setHelperSet(HelperSet $helperSet = null)
{
$this->helperSet = $helperSet;
}

/**
* {@inheritdoc}
*/
public function getHelperSet()
{
return $this->helperSet;
}

/**
* Returns the length of a string, using mb_strwidth if it is available.
*
* @param string $string The string to check its length
*
* @return int The length of the string
*/
public static function strlen($string)
{
$string = (string) $string;

if (false === $encoding = mb_detect_encoding($string, null, true)) {
return \strlen($string);
}

return mb_strwidth($string, $encoding);
}

/**
* Returns the subset of a string, using mb_substr if it is available.
*
* @param string $string String to subset
* @param int $from Start offset
* @param int|null $length Length to read
*
* @return string The string subset
*/
public static function substr($string, $from, $length = null)
{
$string = (string) $string;

if (false === $encoding = mb_detect_encoding($string, null, true)) {
return substr($string, $from, $length);
}

return mb_substr($string, $from, $length, $encoding);
}

public static function formatTime($secs)
{
static $timeFormats = [
[0, '< 1 sec'],
[1, '1 sec'],
[2, 'secs', 1],
[60, '1 min'],
[120, 'mins', 60],
[3600, '1 hr'],
[7200, 'hrs', 3600],
[86400, '1 day'],
[172800, 'days', 86400],
];

foreach ($timeFormats as $index => $format) {
if ($secs >= $format[0]) {
if ((isset($timeFormats[$index + 1]) && $secs < $timeFormats[$index + 1][0])
|| $index == \count($timeFormats) - 1
) {
if (2 == \count($format)) {
return $format[1];
}

return floor($secs / $format[2]).' '.$format[1];
}
}
}
}

public static function formatMemory($memory)
{
if ($memory >= 1024 * 1024 * 1024) {
return sprintf('%.1f GiB', $memory / 1024 / 1024 / 1024);
}

if ($memory >= 1024 * 1024) {
return sprintf('%.1f MiB', $memory / 1024 / 1024);
}

if ($memory >= 1024) {
return sprintf('%d KiB', $memory / 1024);
}

return sprintf('%d B', $memory);
}

public static function strlenWithoutDecoration(OutputFormatterInterface $formatter, $string)
{
return self::strlen(self::removeDecoration($formatter, $string));
}

public static function removeDecoration(OutputFormatterInterface $formatter, $string)
{
$isDecorated = $formatter->isDecorated();
$formatter->setDecorated(false);
// remove <...> formatting
$string = $formatter->format($string);
// remove already formatted characters
$string = preg_replace("/\033\[[^m]*m/", '', $string);
// remove terminal hyperlinks
$string = preg_replace('/\\033]8;[^;]*;[^\\033]*\\033\\\\/', '', $string);
$formatter->setDecorated($isDecorated);

return $string;
}
}