/**
* returns the price of the product checking if there's an offer or coupon
* @param boolean $calculate_VAT
* @return float
*/
public function final_price($calculate_VAT = TRUE)
{
$final_price = $this->price;
// no current valid offer, normal product price
// no current valid coupon: check for valid curent offer
if ($this->valid_coupon() === FALSE and $this->has_offer() and Date::mysql2unix($this->offer_valid) > time()) {
// in case not any coupon returns the offer price if any valid one
$final_price = $this->price_offer;
} elseif ($this->valid_coupon() === TRUE) {
//calculating price by applying either a discount amount or a discount percentage
$discounted_price = abs(Model_Coupon::current()->discount_amount);
if ($discounted_price > 0) {
$discounted_price = round($this->price - $discounted_price, 2);
} else {
$discounted_price = abs(Model_Coupon::current()->discount_percentage);
if ($discounted_price > 0) {
$discounted_price = round($this->price - $this->price * $discounted_price / 100.0, 2);
} else {
// both discount_amount and discount_percentage are 0
$discounted_price = 0;
}
}
//in case calculated price is negative
$final_price = max($discounted_price, 0);
}
//do we need to charge vat?
if (($vat = euvat::vat_percentage()) > 0 and $calculate_VAT === TRUE) {
$final_price = $final_price + $vat * $final_price / 100;
}
//return the price
return $final_price;
}
/**
* verifies pricing in an existing order
* @return void
*/
public function check_pricing()
{
//original coupon so we dont lose it while we do operations
$orig_coupon = $this->id_coupon;
//remove the coupon forced by get/post
if (core::request('coupon_delete') != NULL) {
$this->id_coupon = NULL;
} elseif ($this->product->valid_coupon() and $this->id_coupon != Model_Coupon::current()->id_coupon) {
$this->id_coupon = Model_Coupon::current()->id_coupon;
} elseif ($this->coupon->loaded() and (Date::mysql2unix($this->coupon->valid_date) < time() or $this->coupon->status == 0 or $this->coupon->number_coupons == 0)) {
Alert::set(Alert::INFO, __('Coupon not valid, expired or already used.'));
$this->coupon->clear();
$this->id_coupon = NULL;
}
$user = $this->user;
//recalculate price since it change the coupon or user info
if ($orig_coupon != $this->id_coupon or $this->country != $user->country or $this->city != $user->city or $this->VAT_number != $user->VAT_number or $this->postal_code != $user->postal_code or $this->address != $user->address) {
//set variables just in case...
$this->amount = $this->product->final_price();
$this->VAT = euvat::vat_percentage();
$this->VAT_number = $user->VAT_number;
$this->country = $user->country;
$this->city = $user->city;
$this->postal_code = $user->postal_code;
$this->address = $user->address;
try {
$this->save();
} catch (Exception $e) {
throw HTTP_Exception::factory(500, $e->getMessage());
}
}
}
