/**
* @param \Magento\Sales\Model\Quote\Address $address
* @return $this
*/
public function collect(\Magento\Sales\Model\Quote\Address $address)
{
$store = $address->getQuote()->getStore();
$address->setTaxAmount(0);
$address->setBaseTaxAmount(0);
$address->setAppliedTaxes(array());
$items = $address->getAllItems();
if (!count($items)) {
return $this;
}
$custTaxClassId = $address->getQuote()->getCustomerTaxClassId();
$taxCalculationModel = $this->_calculation;
/* @var $taxCalculationModel \Magento\Tax\Model\Calculation */
$request = $taxCalculationModel->getRateRequest($address, $address->getQuote()->getBillingAddress(), $custTaxClassId, $store);
foreach ($items as $item) {
/**
* Child item's tax we calculate for parent
*/
if ($item->getParentItemId()) {
continue;
}
/**
* We calculate parent tax amount as sum of children's tax amounts
*/
if ($item->getHasChildren() && $item->isChildrenCalculated()) {
foreach ($item->getChildren() as $child) {
$discountBefore = $item->getDiscountAmount();
$baseDiscountBefore = $item->getBaseDiscountAmount();
$rate = $taxCalculationModel->getRate($request->setProductClassId($child->getProduct()->getTaxClassId()));
$child->setTaxPercent($rate);
$child->calcTaxAmount();
if ($discountBefore != $item->getDiscountAmount()) {
$address->setDiscountAmount($address->getDiscountAmount() + ($item->getDiscountAmount() - $discountBefore));
$address->setBaseDiscountAmount($address->getBaseDiscountAmount() + ($item->getBaseDiscountAmount() - $baseDiscountBefore));
$address->setGrandTotal($address->getGrandTotal() - ($item->getDiscountAmount() - $discountBefore));
$address->setBaseGrandTotal($address->getBaseGrandTotal() - ($item->getBaseDiscountAmount() - $baseDiscountBefore));
}
$this->_saveAppliedTaxes($address, $taxCalculationModel->getAppliedRates($request), $child->getTaxAmount(), $child->getBaseTaxAmount(), $rate);
}
$itemTaxAmount = $item->getTaxAmount() + $item->getDiscountTaxCompensation();
$address->setTaxAmount($address->getTaxAmount() + $itemTaxAmount);
$itemBaseTaxAmount = $item->getBaseTaxAmount() + $item->getBaseDiscountTaxCompensation();
$address->setBaseTaxAmount($address->getBaseTaxAmount() + $itemBaseTaxAmount);
} else {
$discountBefore = $item->getDiscountAmount();
$baseDiscountBefore = $item->getBaseDiscountAmount();
$rate = $taxCalculationModel->getRate($request->setProductClassId($item->getProduct()->getTaxClassId()));
$item->setTaxPercent($rate);
$item->calcTaxAmount();
if ($discountBefore != $item->getDiscountAmount()) {
$address->setDiscountAmount($address->getDiscountAmount() + ($item->getDiscountAmount() - $discountBefore));
$address->setBaseDiscountAmount($address->getBaseDiscountAmount() + ($item->getBaseDiscountAmount() - $baseDiscountBefore));
$address->setGrandTotal($address->getGrandTotal() - ($item->getDiscountAmount() - $discountBefore));
$address->setBaseGrandTotal($address->getBaseGrandTotal() - ($item->getBaseDiscountAmount() - $baseDiscountBefore));
}
$itemTaxAmount = $item->getTaxAmount() + $item->getDiscountTaxCompensation();
$address->setTaxAmount($address->getTaxAmount() + $itemTaxAmount);
$itemBaseTaxAmount = $item->getBaseTaxAmount() + $item->getBaseDiscountTaxCompensation();
$address->setBaseTaxAmount($address->getBaseTaxAmount() + $itemBaseTaxAmount);
$applied = $taxCalculationModel->getAppliedRates($request);
$this->_saveAppliedTaxes($address, $applied, $item->getTaxAmount(), $item->getBaseTaxAmount(), $rate);
}
}
$shippingTaxClass = $this->_scopeConfig->getValue(\Magento\Tax\Model\Config::CONFIG_XML_PATH_SHIPPING_TAX_CLASS, \Magento\Store\Model\ScopeInterface::SCOPE_STORE, $store);
$shippingTax = 0;
$shippingBaseTax = 0;
if ($shippingTaxClass) {
$rate = $taxCalculationModel->getRate($request->setProductClassId($shippingTaxClass));
if ($rate) {
if (!$this->_taxData->shippingPriceIncludesTax()) {
$shippingTax = $address->getShippingAmount() * $rate / 100;
$shippingBaseTax = $address->getBaseShippingAmount() * $rate / 100;
} else {
$shippingTax = $address->getShippingTaxAmount();
$shippingBaseTax = $address->getBaseShippingTaxAmount();
}
$shippingTax = $this->priceCurrency->round($shippingTax);
$shippingBaseTax = $this->priceCurrency->round($shippingBaseTax);
$address->setTaxAmount($address->getTaxAmount() + $shippingTax);
$address->setBaseTaxAmount($address->getBaseTaxAmount() + $shippingBaseTax);
$this->_saveAppliedTaxes($address, $taxCalculationModel->getAppliedRates($request), $shippingTax, $shippingBaseTax, $rate);
}
}
if (!$this->_taxData->shippingPriceIncludesTax()) {
$address->setShippingTaxAmount($shippingTax);
$address->setBaseShippingTaxAmount($shippingBaseTax);
}
$address->setGrandTotal($address->getGrandTotal() + $address->getTaxAmount());
$address->setBaseGrandTotal($address->getBaseGrandTotal() + $address->getBaseTaxAmount());
return $this;
}