<?php

namespace LassoLiteVendor\Http\Message;

use LassoLiteVendor\Http\Message\Exception\UnexpectedValueException;
final class CookieUtil
{
    /**
     * Handles dates as defined by RFC 2616 section 3.3.1, and also some other
     * non-standard, but common formats.
     *
     * @var array
     */
    private static $dateFormats = ['D, d M y H:i:s T', 'D, d M Y H:i:s T', 'D, d-M-y H:i:s T', 'D, d-M-Y H:i:s T', 'D, d-m-y H:i:s T', 'D, d-m-Y H:i:s T', 'D M j G:i:s Y', 'D M d H:i:s Y T'];
    /**
     * @see https://github.com/symfony/symfony/blob/master/src/Symfony/Component/BrowserKit/Cookie.php
     *
     * @param string $dateValue
     *
     * @return \DateTime
     *
     * @throws UnexpectedValueException if we cannot parse the cookie date string
     */
    public static function parseDate($dateValue)
    {
        foreach (self::$dateFormats as $dateFormat) {
            if (\false !== ($date = \DateTime::createFromFormat($dateFormat, $dateValue, new \DateTimeZone('GMT')))) {
                return $date;
            }
        }
        // attempt a fallback for unusual formatting
        if (\false !== ($date = \date_create($dateValue, new \DateTimeZone('GMT')))) {
            return $date;
        }
        throw new UnexpectedValueException(\sprintf('Unparseable cookie date string "%s"', $dateValue));
    }
}
