/**
* Set the exchange item from a ProductUnit.
*
* @param ProductUnit $unit
* @param null | StockLocation $stockLocation
* @throws \LogicException
*
* @return Assembler
*/
public function setExchangeItem(ProductUnit $unit, StockLocation $stockLocation = null)
{
if (!$this->_return->item) {
throw new \LogicException("You can not set the exchange item without having previously set the return item");
}
$this->_return->item->exchangeItem = $item = new OrderItem();
$item->populate($unit);
$item->listPrice = $unit->getPrice('retail', $this->_currencyID);
$item->actualPrice = $item->listPrice;
$item->rrp = $unit->getPrice('rrp', $this->_currencyID);
$item->basePrice = $item->actualPrice;
$taxRates = $this->_taxLoader->getProductTaxRates($unit->product, $this->_return->getPayableAddress('delivery') ?: $this->_defaultAddress);
// Re-evaluate tax rates for address
$taxes = [];
$item->taxRate = 0;
foreach ($taxRates as $rate) {
$taxes[$rate->getType()] = $rate->getRate();
$item->taxRate += $rate->getRate();
}
$item->setTaxRates($taxes);
$this->_calculateTax($item);
$item->stockLocation = $stockLocation;
// Adjust the balance to reflect the exchange item
$balance = $item->gross - $this->_return->item->gross;
$this->_return->item->calculatedBalance = $balance;
return $this;
}
