class SessionCookieJar

class SessionCookieJar extends CookieJar {
    
    /**
     * @var string session key
     */
    private $sessionKey;
    
    /**
     * @var bool Control whether to persist session cookies or not.
     */
    private $storeSessionCookies;
    
    /**
     * Create a new SessionCookieJar object
     *
     * @param string $sessionKey          Session key name to store the cookie
     *                                    data in session
     * @param bool   $storeSessionCookies Set to true to store session cookies
     *                                    in the cookie jar.
     */
    public function __construct(string $sessionKey, bool $storeSessionCookies = false) {
        parent::__construct();
        $this->sessionKey = $sessionKey;
        $this->storeSessionCookies = $storeSessionCookies;
        $this->load();
    }
    
    /**
     * Saves cookies to session when shutting down
     */
    public function __destruct() {
        $this->save();
    }
    
    /**
     * Save cookies to the client session
     */
    public function save() : void {
        $json = [];
        
        /** @var SetCookie $cookie */
        foreach ($this as $cookie) {
            if (CookieJar::shouldPersist($cookie, $this->storeSessionCookies)) {
                $json[] = $cookie->toArray();
            }
        }
        $_SESSION[$this->sessionKey] = \json_encode($json);
    }
    
    /**
     * Load the contents of the client session into the data array
     */
    protected function load() : void {
        if (!isset($_SESSION[$this->sessionKey])) {
            return;
        }
        $data = \json_decode($_SESSION[$this->sessionKey], true);
        if (\is_array($data)) {
            foreach ($data as $cookie) {
                $this->setCookie(new SetCookie($cookie));
            }
        }
        elseif (\strlen($data)) {
            throw new \RuntimeException('Invalid cookie data');
        }
    }

}