class LinkMembersToAmazon
{
    /**
     * Link member information with Amazon account
     *
     * @author Kubo Tatsuya <k.tatsuya0419@gmail.com>
     *
     * @return Closure&#Function#c069ca86
     */
    public function saveLinkWithYourAmazonAccount() {
        return function () {
            $linkmember = isset($_POST['linkmember']) ? (int)$_POST['linkmember'] : -1;
            if ($linkmember === -1) {
                return;
            }
            MemberMeta::addAmazonLoginPermissionToMemberMetaData((int)$linkmember);
        };
    }
}