bitrix. Resize and replace images form b_file , when HEIGHT || WIDTH> 1600. Scripn in js step/

resize_in_b_file.php

<?php
require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_before.php'); // include  bitrix prolog (clasess)
define("STOP_STATISTICS", true); // disable statistic
CModule::IncludeModule("iblock");
global $DB;


$LastID=0; // start ID

$obRes = Bitrix\Main\FileTable::GetList(array(
    'select'  => array('ID', 'HEIGHT', 'WIDTH', 'FILE_SIZE','SUBDIR','FILE_NAME'),
    'filter'  => array('>ID'=>$LastID, 'CONTENT_TYPE'=>'image/jpeg'),
    'order'   => array('ID'=>'asc'),
    'limit'   => 5 // filesby step

));

$ptime = getmicrotime();
$io = CBXVirtualIo::GetInstance();
$CountR =0;
while ( $arRes = $obRes->fetch() )
{

    // size filter
    if($arRes['HEIGHT']>1600 || $arRes['WIDTH']>1600){

//only big
        $ToResizeImg = $_SERVER["DOCUMENT_ROOT"].'/upload/'.$arRes['SUBDIR'].'/'.$arRes['FILE_NAME'];
        $tempFile = $_SERVER['DOCUMENT_ROOT']."/upload/1.jpeg";

        $rif = CFile::ResizeImageFile( // resize  image
            $sourceFile = $ToResizeImg,
            $destinationFile = $tempFile,
            $arSize = array('width'=>1600,'height'=>1600),
            $resizeType = BX_RESIZE_IMAGE_PROPORTIONAL,
            $arWaterMark = array(),
            $jpgQuality=false,
            $arFilters =false
        );

        if ($rif) { /// if set resized

            $arImageSize = CFile::GetImageSize( $tempFile);

            $f = $io->GetFile($tempFile);
            $arImageSize[2] = $f->GetFileSize();


            unlink($ToResizeImg);
            rename($tempFile, $ToResizeImg); // replace image

            //undate info  in b_file
            $DB->Query("UPDATE b_file SET FILE_SIZE='".round(floatval($arImageSize[2]))."', HEIGHT='".round(floatval($arImageSize[1]))."', WIDTH='".round(floatval($arImageSize[0]))."' WHERE ID=".intval($arRes['ID']));
            $CountR++;
        }

    }
    $LastID = intval($arRes['ID']);
}

echo "Loop work ".round(getmicrotime()-$ptime, 3)." seconds";
echo '<pre>$LastID';
print_r($LastID);
echo '</pre>';


if($LastID>0){
    ?>
    <script>
        setTimeout(function(){
            window.location.reload(1);
        }, 700);

    </script>
    <?
}