function isValid(&$vat)
{
$class = hikashop_get('class.zone');
$zone = $class->get(@$vat->address_country);
if (empty($zone->zone_code_2) || !in_array($zone->zone_code_2, array('AT', 'BE', 'BG', 'CY', 'CZ', 'DK', 'EE', 'EL', 'DE', 'PT', 'GR', 'ES', 'FI', 'HR', 'HU', 'LU', 'MT', 'SI', 'FR', 'GB', 'IE', 'IT', 'LV', 'LT', 'NL', 'PL', 'SK', 'RO', 'SE'))) {
return true;
}
if ($zone->zone_code_2 == 'ES' && !empty($vat->address_state)) {
$statezone = $class->get(@$vat->address_state);
if ($statezone->zone_code_3 == 'GC' || $statezone->zone_code_3 == 'TF') {
return true;
}
}
static $vat_check = null;
if (!isset($vat_check)) {
$config = hikashop_config();
$vat_check = (int) $config->get('vat_check', 2);
}
if ($zone->zone_code_2 == 'GR') {
$zone->zone_code_2 = 'EL';
}
switch ($vat_check) {
case 1:
case 2:
if (is_object($vat)) {
$vat_number =& $vat->address_vat;
} else {
$vat_number =& $vat;
}
$regex = $this->getRegex($vat_number);
if ($regex === false) {
if (is_object($vat) && !empty($vat->address_country)) {
if (!empty($zone->zone_code_2)) {
$vat_number = $zone->zone_code_2 . $vat_number;
$regex = $this->getRegex($vat_number);
}
}
if ($regex === false) {
$app = JFactory::getApplication();
$this->message = JText::_('VAT_NOT_FOR_YOUR_COUNTRY');
if (@$_REQUEST['tmpl'] == 'component') {
hikashop_display($this->message, 'error');
} else {
$app->enqueueMessage($this->message);
}
return false;
}
}
if (!$this->regexCheck($vat_number, $regex)) {
return false;
}
$vat_number = strtoupper(str_replace(array(' ', '.', '-'), array('', '', ''), $vat_number));
$code = substr($vat_number, 0, 2);
if ($code == 'GR') {
$code = 'EL';
$vat_number = $code . substr($vat_number, 2);
}
if ($zone->zone_code_2 != $code) {
$app = JFactory::getApplication();
$this->message = JTex::sprintf('WRONG_VAT_NUMBER_COUNTRY_CODE', $code, $zone->zone_code_2);
if (@$_REQUEST['tmpl'] == 'component') {
hikashop_display($this->message, 'error');
} else {
$app->enqueueMessage($this->message);
}
return false;
}
if ($vat_check == 2) {
return $this->onlineCheck($vat_number);
}
case 0:
default:
}
return true;
}
