/** Coupon discounts implementation. */
protected static function byCoupons(&$order, $contact, $apply)
{
$currency = isset($order['currency']) ? $order['currency'] : wa('shop')->getConfig()->getCurrency(false);
$checkout_data = wa('shop')->getStorage()->read('shop/checkout');
if (empty($checkout_data['coupon_code'])) {
return 0;
// !!! Will this fail when recalculating existing order?
}
$cm = new shopCouponModel();
$coupon = $cm->getByField('code', $checkout_data['coupon_code']);
if (!$coupon || !shopCouponsAction::isEnabled($coupon)) {
return 0;
}
switch ($coupon['type']) {
case '$FS':
$order['shipping'] = 0;
$result = 0;
break;
case '%':
$result = max(0.0, min(100.0, (double) $coupon['value'])) * $order['total'] / 100.0;
break;
default:
// Flat value in currency
$result = max(0.0, (double) $coupon['value']);
if ($currency != $coupon['type']) {
$crm = new shopCurrencyModel();
$result = (double) $crm->convert($result, $coupon['type'], $currency);
}
break;
}
if ($apply) {
$cm->useOne($coupon['id']);
if (empty($order['params'])) {
$order['params'] = array();
}
$order['params']['coupon_id'] = $coupon['id'];
$order['params']['coupon_discount'] = $result;
}
return $result;
}