/**
* Calculates the per_order coupon discount for the order
* and the total post-tax/shipping discount
* and sets order->order_discount
*
* @return unknown_type
*/
function calculateDiscountTotals()
{
$this->_taxes = K2StoreHelperCart::getTaxes();
$session = JFactory::getSession();
$tax = new K2StoreTax();
JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_k2store/models');
$model = JModelLegacy::getInstance('MyCart', 'K2StoreModel');
$products = $model->getDataNew();
if ($session->has('coupon', 'k2store')) {
$coupon_info = K2StoreHelperCart::getCoupon($session->get('coupon', '', 'k2store'));
if ($coupon_info) {
$discount_total = 0;
if (!$coupon_info->product) {
$sub_total = K2StoreHelperCart::getSubTotal();
} else {
$sub_total = 0;
foreach ($products as $product) {
if (in_array($product['product_id'], $coupon_info->product)) {
$sub_total += $product['total'];
}
}
}
if ($coupon_info->value_type == 'F') {
$coupon_info->value = min($coupon_info->value, $sub_total);
}
foreach ($products as $product) {
$discount = 0;
if (!$coupon_info->product) {
$status = true;
} else {
if (in_array($product['product_id'], $coupon_info->product)) {
$status = true;
} else {
$status = false;
}
}
if ($status) {
if ($coupon_info->value_type == 'F') {
$discount = $coupon_info->value * ($product['total'] / $sub_total);
} elseif ($coupon_info->value_type == 'P') {
$discount = $product['total'] / 100 * $coupon_info->value;
}
if ($product['tax_profile_id']) {
$tax_rates = $tax->getRateArray($product['total'] - ($product['total'] - $discount), $product['tax_profile_id']);
foreach ($tax_rates as $tax_rate) {
// if ($tax_rate['value_type'] == 'P') {
$this->_taxes[$tax_rate['taxrate_id']] -= $tax_rate['amount'];
// }
}
}
}
$discount_total += $discount;
}
}
}
// store the total amount of the discount
//set the total as equal to the order_subtotal + order_tax if its greater than the sum of the two
$this->order_discount = $discount_total > $this->order_subtotal + $this->order_tax ? $this->order_subtotal + $this->order_tax : $discount_total;
}
public static function getTaxes()
{
$tax_data = array();
JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_k2store/models');
$model = JModelLegacy::getInstance('Mycart', 'K2StoreModel');
$products = $model->getDataNew();
$t = new K2StoreTax();
foreach ($products as $product) {
if ($product['tax_profile_id']) {
$tax_rates = $t->getRateArray($product['price'], $product['tax_profile_id']);
foreach ($tax_rates as $tax_rate) {
if (!isset($tax_data[$tax_rate['taxrate_id']])) {
$tax_data[$tax_rate['taxrate_id']] = $tax_rate['amount'] * $product['quantity'];
} else {
$tax_data[$tax_rate['taxrate_id']] += $tax_rate['amount'] * $product['quantity'];
}
}
}
}
return $tax_data;
}
