/**
* Calculate item price and row total including/excluding tax based on total price rounding level
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param Varien_Object $request
*
* @return Mage_Tax_Model_Sales_Total_Quote_Subtotal
*/
protected function _totalBaseCalculation($item, $request)
{
$calc = $this->_calculator;
$request->setProductClassId($item->getProduct()->getTaxClassId());
$rate = $calc->getRate($request);
$qty = $item->getTotalQty();
$price = $taxPrice = $this->_calculator->round($item->getCalculationPriceOriginal());
$basePrice = $baseTaxPrice = $this->_calculator->round($item->getBaseCalculationPriceOriginal());
$subtotal = $taxSubtotal = $this->_calculator->round($item->getRowTotal());
$baseSubtotal = $baseTaxSubtotal = $this->_calculator->round($item->getBaseRowTotal());
// if we have a custom price, determine if tax should be based on the original price
$taxOnOrigPrice = !$this->_helper->applyTaxOnCustomPrice($this->_store) && $item->hasCustomPrice();
if ($taxOnOrigPrice) {
$origSubtotal = $item->getOriginalPrice() * $qty;
$baseOrigSubtotal = $item->getBaseOriginalPrice() * $qty;
}
$item->setTaxPercent($rate);
if ($this->_config->priceIncludesTax($this->_store)) {
if ($this->_sameRateAsStore($request)) {
// determine which price to use when we calculate the tax
if ($taxOnOrigPrice) {
$taxable = $origSubtotal;
$baseTaxable = $baseOrigSubtotal;
} else {
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
}
$rowTaxExact = $calc->calcTaxAmount($taxable, $rate, true, false);
$rowTax = $this->_deltaRound($rowTaxExact, $rate, true);
$baseRowTaxExact = $calc->calcTaxAmount($baseTaxable, $rate, true, false);
$baseRowTax = $this->_deltaRound($baseRowTaxExact, $rate, true, 'base');
$taxPrice = $price;
$baseTaxPrice = $basePrice;
$taxSubtotal = $subtotal;
$baseTaxSubtotal = $baseSubtotal;
$subtotal = $subtotal - $rowTax;
$baseSubtotal = $baseSubtotal - $baseRowTax;
$price = $calc->round($subtotal / $qty);
$basePrice = $calc->round($baseSubtotal / $qty);
$isPriceInclTax = true;
//Save the tax calculated
$item->setRowTax($rowTax);
$item->setBaseRowTax($baseRowTax);
} else {
$storeRate = $calc->getStoreRate($request, $this->_store);
if ($taxOnOrigPrice) {
// the merchant already provided a customer's price that includes tax
$taxPrice = $price;
$baseTaxPrice = $basePrice;
// determine which price to use when we calculate the tax
$taxable = $this->_calculatePriceInclTax($item->getOriginalPrice(), $storeRate, $rate);
$baseTaxable = $this->_calculatePriceInclTax($item->getBaseOriginalPrice(), $storeRate, $rate);
} else {
// determine the customer's price that includes tax
$taxPrice = $this->_calculatePriceInclTax($price, $storeRate, $rate);
$baseTaxPrice = $this->_calculatePriceInclTax($basePrice, $storeRate, $rate);
// determine which price to use when we calculate the tax
$taxable = $taxPrice;
$baseTaxable = $baseTaxPrice;
}
// determine the customer's tax amount based on the taxable price
$tax = $this->_calculator->calcTaxAmount($taxable, $rate, true, true);
$baseTax = $this->_calculator->calcTaxAmount($baseTaxable, $rate, true, true);
// determine the customer's price without taxes
$price = $taxPrice - $tax;
$basePrice = $baseTaxPrice - $baseTax;
// determine subtotal amounts
$taxable *= $qty;
$baseTaxable *= $qty;
$taxSubtotal = $taxPrice * $qty;
$baseTaxSubtotal = $baseTaxPrice * $qty;
$rowTax = $this->_deltaRound($calc->calcTaxAmount($taxable, $rate, true, false), $rate, true);
$baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseTaxable, $rate, true, false), $rate, true, 'base');
$subtotal = $taxSubtotal - $rowTax;
$baseSubtotal = $baseTaxSubtotal - $baseRowTax;
$isPriceInclTax = true;
$item->setRowTax($rowTax);
$item->setBaseRowTax($baseRowTax);
}
} else {
// determine which price to use when we calculate the tax
if ($taxOnOrigPrice) {
$taxable = $origSubtotal;
$baseTaxable = $baseOrigSubtotal;
} else {
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
}
$appliedRates = $this->_calculator->getAppliedRates($request);
$rowTaxes = array();
$baseRowTaxes = array();
foreach ($appliedRates as $appliedRate) {
$taxId = $appliedRate['id'];
$taxRate = $appliedRate['percent'];
$rowTaxes[] = $this->_deltaRound($calc->calcTaxAmount($taxable, $taxRate, false, false), $taxId, false);
$baseRowTaxes[] = $this->_deltaRound($calc->calcTaxAmount($baseTaxable, $taxRate, false, false), $taxId, false, 'base');
}
$taxSubtotal = $subtotal + array_sum($rowTaxes);
$baseTaxSubtotal = $baseSubtotal + array_sum($baseRowTaxes);
$taxPrice = $calc->round($taxSubtotal / $qty);
$baseTaxPrice = $calc->round($baseTaxSubtotal / $qty);
$isPriceInclTax = false;
}
if ($item->hasCustomPrice()) {
/**
* Initialize item original price before declaring custom price
*/
$item->getOriginalPrice();
$item->setCustomPrice($price);
$item->setBaseCustomPrice($basePrice);
} else {
$item->setConvertedPrice($price);
}
$item->setPrice($basePrice);
$item->setBasePrice($basePrice);
$item->setRowTotal($subtotal);
$item->setBaseRowTotal($baseSubtotal);
$item->setPriceInclTax($taxPrice);
$item->setBasePriceInclTax($baseTaxPrice);
$item->setRowTotalInclTax($taxSubtotal);
$item->setBaseRowTotalInclTax($baseTaxSubtotal);
$item->setTaxableAmount($taxable);
$item->setBaseTaxableAmount($baseTaxable);
$item->setIsPriceInclTax($isPriceInclTax);
if ($this->_config->discountTax($this->_store)) {
$item->setDiscountCalculationPrice($taxSubtotal / $qty);
$item->setBaseDiscountCalculationPrice($baseTaxSubtotal / $qty);
} elseif ($isPriceInclTax) {
$item->setDiscountCalculationPrice($subtotal / $qty);
$item->setBaseDiscountCalculationPrice($baseSubtotal / $qty);
}
return $this;
}
/**
* Aggregate row totals per tax rate in array
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param float $rate
* @param array $taxGroups
* @return Mage_Tax_Model_Sales_Total_Quote
*/
protected function _aggregateTaxPerRate($item, $rate, &$taxGroups)
{
$inclTax = $item->getIsPriceInclTax();
$rateKey = (string) $rate;
$taxSubtotal = $subtotal = $item->getTaxableAmount() + $item->getExtraRowTaxableAmount();
$baseTaxSubtotal = $baseSubtotal = $item->getBaseTaxableAmount() + $item->getBaseExtraRowTaxableAmount();
$item->setTaxPercent($rate);
if (!isset($taxGroups[$rateKey]['totals'])) {
$taxGroups[$rateKey]['totals'] = array();
$taxGroups[$rateKey]['base_totals'] = array();
}
$hiddenTax = null;
$baseHiddenTax = null;
switch ($this->_helper->getCalculationSequence($this->_store)) {
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_INCL:
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, $inclTax, false);
break;
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_INCL:
if ($this->_helper->applyTaxOnOriginalPrice($this->_store)) {
$discount = $item->getOriginalDiscountAmount();
$baseDiscount = $item->getBaseOriginalDiscountAmount();
} else {
$discount = $item->getDiscountAmount();
$baseDiscount = $item->getBaseDiscountAmount();
}
$taxSubtotal = max($subtotal - $discount, 0);
$baseTaxSubtotal = max($baseSubtotal - $baseDiscount, 0);
$rowTax = $this->_calculator->calcTaxAmount($taxSubtotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseTaxSubtotal, $rate, $inclTax, false);
if ($inclTax && $discount > 0) {
$hiddenTax = $this->_calculator->calcTaxAmount($discount, $rate, $inclTax, false);
$baseHiddenTax = $this->_calculator->calcTaxAmount($baseDiscount, $rate, $inclTax, false);
$this->_hiddenTaxes[] = array('rate_key' => $rateKey, 'qty' => 1, 'item' => $item, 'value' => $hiddenTax, 'base_value' => $baseHiddenTax, 'incl_tax' => $inclTax);
}
break;
}
$rowTax = $this->_deltaRound($rowTax, $rateKey, $inclTax);
$baseRowTax = $this->_deltaRound($baseRowTax, $rateKey, $inclTax, 'base');
$item->setTaxAmount(max(0, $rowTax));
$item->setBaseTaxAmount(max(0, $baseRowTax));
$taxGroups[$rateKey]['totals'][] = max(0, $taxSubtotal);
$taxGroups[$rateKey]['base_totals'][] = max(0, $baseTaxSubtotal);
return $this;
}
/**
* Aggregate row totals per tax rate in array
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param float $rate
* @param array $taxGroups
* @return Mage_Tax_Model_Sales_Total_Quote
*/
protected function _aggregateTaxPerRate($item, $rate, &$taxGroups)
{
$inclTax = $item->getIsPriceInclTax();
$rateKey = (string) $rate;
$subtotal = $item->getTaxableAmount() + $item->getExtraRowTaxableAmount();
$baseSubtotal = $item->getBaseTaxableAmount() + $item->getBaseExtraRowTaxableAmount();
$item->setTaxPercent($rate);
if (!isset($taxGroups[$rateKey]['totals'])) {
$taxGroups[$rateKey]['totals'] = array();
$taxGroups[$rateKey]['base_totals'] = array();
}
$hiddenTax = null;
$baseHiddenTax = null;
switch ($this->_helper->getCalculationSequence($this->_store)) {
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_INCL:
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, $inclTax, false);
break;
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_INCL:
$discount = $item->getDiscountAmount();
$baseDiscount = $item->getBaseDiscountAmount();
$subtotal -= $discount;
$baseSubtotal -= $baseDiscount;
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, $inclTax, false);
break;
}
$rowTax = $this->_deltaRound($rowTax, $rateKey, $inclTax);
$baseRowTax = $this->_deltaRound($baseRowTax, $rateKey, $inclTax, 'base');
if ($inclTax && !empty($discount)) {
$hiddenTax = $item->getRowTotalInclTax() - $item->getRowTotal() - $rowTax;
$baseHiddenTax = $item->getBaseRowTotalInclTax() - $item->getBaseRowTotal() - $baseRowTax;
}
$item->setTaxAmount(max(0, $rowTax));
$item->setBaseTaxAmount(max(0, $baseRowTax));
$item->setHiddenTaxAmount(max(0, $hiddenTax));
$item->setBaseHiddenTaxAmount(max(0, $baseHiddenTax));
$taxGroups[$rateKey]['totals'][] = max(0, $subtotal);
$taxGroups[$rateKey]['base_totals'][] = max(0, $baseSubtotal);
return $this;
}
/**
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param Varien_Object $taxRateRequest
* @param array $taxGroups
* @param array $itemTaxGroups
* @param boolean $catalogPriceInclTax
*/
protected function _totalBaseProcessItemTax($item, $taxRateRequest, &$taxGroups, &$itemTaxGroups, $catalogPriceInclTax)
{
$taxRateRequest->setProductClassId($item->getProduct()->getTaxClassId());
$rate = $this->_calculator->getRate($taxRateRequest);
$item->setTaxAmount(0);
$item->setBaseTaxAmount(0);
$item->setHiddenTaxAmount(0);
$item->setBaseHiddenTaxAmount(0);
$item->setTaxPercent($rate);
$item->setDiscountTaxCompensation(0);
$rowTotalInclTax = $item->getRowTotalInclTax();
$recalculateRowTotalInclTax = false;
if (!isset($rowTotalInclTax)) {
$item->setRowTotalInclTax($item->getTaxableAmount());
$item->setBaseRowTotalInclTax($item->getBaseTaxableAmount());
$recalculateRowTotalInclTax = true;
}
$appliedRates = $this->_calculator->getAppliedRates($taxRateRequest);
if ($catalogPriceInclTax) {
$taxGroups[(string) $rate]['applied_rates'] = $appliedRates;
$taxGroups[(string) $rate]['incl_tax'] = $item->getIsPriceInclTax();
$this->_aggregateTaxPerRate($item, $rate, $taxGroups);
} else {
//need to calculate each tax separately
foreach ($appliedRates as $appliedTax) {
$taxId = $appliedTax['id'];
$taxRate = $appliedTax['percent'];
$taxGroups[$taxId]['applied_rates'] = array($appliedTax);
$taxGroups[$taxId]['incl_tax'] = $item->getIsPriceInclTax();
$this->_aggregateTaxPerRate($item, $taxRate, $taxGroups, $taxId, $recalculateRowTotalInclTax);
}
//We need to calculate weeeAmountInclTax using multiple tax rate here
//because the _calculateWeeeTax and _calculateRowWeeeTax only take one tax rate
if ($this->_weeeHelper->isEnabled() && $this->_weeeHelper->isTaxable()) {
$this->_calculateWeeeAmountInclTax($item, $appliedRates, false);
$this->_calculateWeeeAmountInclTax($item, $appliedRates, true);
}
}
if ($rate > 0) {
$itemTaxGroups[$item->getId()] = $appliedRates;
}
return;
}
/**
* Calculate item price and row total including/excluding tax based on total price rounding level
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param Varien_Object $request
* @return Mage_Tax_Model_Sales_Total_Quote_Subtotal
*/
protected function _totalBaseCalculation($item, $request)
{
$calc = $this->_calculator;
$request->setProductClassId($item->getProduct()->getTaxClassId());
$rate = $calc->getRate($request);
$qty = $item->getTotalQty();
$price = $taxPrice = $item->getCalculationPriceOriginal();
$basePrice = $baseTaxPrice = $item->getBaseCalculationPriceOriginal();
$subtotal = $taxSubtotal = $item->getRowTotal();
$baseSubtotal = $baseTaxSubtotal = $item->getBaseRowTotal();
$taxOnOrigPrice = !$this->_helper->applyTaxOnCustomPrice($this->_store) && $item->hasCustomPrice();
if ($taxOnOrigPrice) {
$origSubtotal = $item->getOriginalPrice() * $qty;
$baseOrigSubtotal = $item->getBaseOriginalPrice() * $qty;
}
$item->setTaxPercent($rate);
if ($this->_config->priceIncludesTax($this->_store)) {
if ($this->_sameRateAsStore($request)) {
if ($taxOnOrigPrice) {
$rowTax = $this->_deltaRound($calc->calcTaxAmount($origSubtotal, $rate, true, false), $rate, true);
$baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseOrigSubtotal, $rate, true, false), $rate, true, 'base');
$taxable = $origSubtotal;
$baseTaxable = $baseOrigSubtotal;
} else {
$rowTax = $this->_deltaRound($calc->calcTaxAmount($subtotal, $rate, true, false), $rate, true);
$baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseSubtotal, $rate, true, false), $rate, true, 'base');
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
}
$taxPrice = $price;
$baseTaxPrice = $basePrice;
$taxSubtotal = $subtotal;
$baseTaxSubtotal = $baseSubtotal;
$subtotal = $subtotal - $rowTax;
$baseSubtotal = $baseSubtotal - $baseRowTax;
$price = $calc->round($subtotal / $qty);
$basePrice = $calc->round($baseSubtotal / $qty);
$isPriceInclTax = true;
} else {
$storeRate = $calc->getStoreRate($request, $this->_store);
if ($taxOnOrigPrice) {
$storeTax = $calc->calcTaxAmount($origSubtotal, $storeRate, true, false);
$baseStoreTax = $calc->calcTaxAmount($baseOrigSubtotal, $storeRate, true, false);
} else {
$storeTax = $calc->calcTaxAmount($subtotal, $storeRate, true, false);
$baseStoreTax = $calc->calcTaxAmount($baseSubtotal, $storeRate, true, false);
}
$subtotal = $calc->round($subtotal - $storeTax);
$baseSubtotal = $calc->round($baseSubtotal - $baseStoreTax);
$price = $calc->round($subtotal / $qty);
$basePrice = $calc->round($baseSubtotal / $qty);
$rowTax = $this->_deltaRound($calc->calcTaxAmount($subtotal, $rate, false, false), $rate, true);
$baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseSubtotal, $rate, false, false), $rate, true, 'base');
$taxSubtotal = $subtotal + $rowTax;
$baseTaxSubtotal = $baseSubtotal + $baseRowTax;
$taxPrice = $calc->round($taxSubtotal / $qty);
$baseTaxPrice = $calc->round($baseTaxSubtotal / $qty);
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
$isPriceInclTax = false;
}
} else {
if ($taxOnOrigPrice) {
$rowTax = $this->_deltaRound($calc->calcTaxAmount($origSubtotal, $rate, false, false), $rate, true);
$baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseOrigSubtotal, $rate, false, false), $rate, true, 'base');
$taxable = $origSubtotal;
$baseTaxable = $baseOrigSubtotal;
} else {
$rowTax = $this->_deltaRound($calc->calcTaxAmount($subtotal, $rate, false, false), $rate, true);
$baseRowTax = $this->_deltaRound($calc->calcTaxAmount($baseSubtotal, $rate, false, false), $rate, true, 'base');
$taxable = $subtotal;
$baseTaxable = $baseSubtotal;
}
$taxSubtotal = $subtotal + $rowTax;
$baseTaxSubtotal = $baseSubtotal + $baseRowTax;
$taxPrice = $calc->round($taxSubtotal / $qty);
$baseTaxPrice = $calc->round($baseTaxSubtotal / $qty);
$isPriceInclTax = false;
}
if ($item->hasCustomPrice()) {
/**
* Initialize item original price before declaring custom price
*/
$item->getOriginalPrice();
$item->setCustomPrice($price);
$item->setBaseCustomPrice($basePrice);
} else {
$item->setConvertedPrice($price);
}
$item->setPrice($basePrice);
$item->setBasePrice($basePrice);
$item->setRowTotal($subtotal);
$item->setBaseRowTotal($baseSubtotal);
$item->setPriceInclTax($taxPrice);
$item->setBasePriceInclTax($baseTaxPrice);
$item->setRowTotalInclTax($taxSubtotal);
$item->setBaseRowTotalInclTax($baseTaxSubtotal);
$item->setTaxableAmount($taxable);
$item->setBaseTaxableAmount($baseTaxable);
$item->setIsPriceInclTax($isPriceInclTax);
if ($this->_config->discountTax($this->_store)) {
$item->setDiscountCalculationPrice($taxSubtotal / $qty);
$item->setBaseDiscountCalculationPrice($baseTaxSubtotal / $qty);
} elseif ($isPriceInclTax) {
$item->setDiscountCalculationPrice($subtotal / $qty);
$item->setBaseDiscountCalculationPrice($baseSubtotal / $qty);
}
return $this;
}
/**
* Aggregate row totals per tax rate in array
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param float $rate
* @param array $taxGroups
* @return Mage_Tax_Model_Sales_Total_Quote
*/
protected function _aggregateTaxPerRate($item, $rate, &$taxGroups)
{
$store = $item->getStore();
$inclTax = $this->_usePriceIncludeTax($store);
if ($inclTax) {
$subtotal = $item->getTaxCalcRowTotal();
$baseSubtotal = $item->getBaseTaxCalcRowTotal();
} else {
if ($item->hasCustomPrice() && $this->_helper->applyTaxOnCustomPrice($store)) {
$subtotal = $item->getRowTotal();
$baseSubtotal = $item->getBaseRowTotal();
} else {
$subtotal = $item->getTotalQty() * $item->getOriginalPrice();
$baseSubtotal = $item->getTotalQty() * $item->getBaseOriginalPrice();
}
}
$discountAmount = $item->getDiscountAmount();
$baseDiscountAmount = $item->getBaseDiscountAmount();
$qty = $item->getTotalQty();
$rateKey = (string) $rate;
/**
* Add extra amounts which can be taxable too
*/
$calcTotal = $subtotal + $item->getExtraRowTaxableAmount();
$baseCalcTotal = $baseSubtotal + $item->getBaseExtraRowTaxableAmount();
$item->setTaxPercent($rate);
if (!isset($taxGroups[$rateKey]['totals'])) {
$taxGroups[$rateKey]['totals'] = array();
}
if (!isset($taxGroups[$rateKey]['totals'])) {
$taxGroups[$rateKey]['base_totals'] = array();
}
$calculationSequence = $this->_helper->getCalculationSequence($store);
switch ($calculationSequence) {
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_EXCL:
$rowTax = $this->_calculator->calcTaxAmount($calcTotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseCalcTotal, $rate, $inclTax, false);
break;
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_INCL:
$rowTax = $this->_calculator->calcTaxAmount($calcTotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseCalcTotal, $rate, $inclTax, false);
$discountPrice = $inclTax ? $subtotal / $qty : ($subtotal + $rowTax) / $qty;
$baseDiscountPrice = $inclTax ? $baseSubtotal / $qty : ($baseSubtotal + $baseRowTax) / $qty;
$item->setDiscountCalculationPrice($discountPrice);
$item->setBaseDiscountCalculationPrice($baseDiscountPrice);
break;
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_INCL:
$calcTotal = $calcTotal - $discountAmount;
$baseCalcTotal = $baseCalcTotal - $baseDiscountAmount;
$rowTax = $this->_calculator->calcTaxAmount($calcTotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseCalcTotal, $rate, $inclTax, false);
break;
}
/**
* "Delta" rounding
*/
$delta = isset($this->_roundingDeltas[$rateKey]) ? $this->_roundingDeltas[$rateKey] : 0;
$baseDelta = isset($this->_baseRoundingDeltas[$rateKey]) ? $this->_baseRoundingDeltas[$rateKey] : 0;
$rowTax += $delta;
$baseRowTax += $baseDelta;
$this->_roundingDeltas[$rateKey] = $rowTax - $this->_calculator->round($rowTax);
$this->_baseRoundingDeltas[$rateKey] = $baseRowTax - $this->_calculator->round($baseRowTax);
$rowTax = $this->_calculator->round($rowTax);
$baseRowTax = $this->_calculator->round($baseRowTax);
/**
* Renew item amounts in case if we are working with price include tax
*/
if ($inclTax) {
$unitTax = $this->_calculator->round($rowTax / $qty);
$baseUnitTax = $this->_calculator->round($baseRowTax / $qty);
if ($item->hasCustomPrice()) {
$item->setCustomPrice($item->getPriceInclTax() - $unitTax);
$item->setBaseCustomPrice($item->getBasePriceInclTax() - $baseUnitTax);
} else {
$item->setOriginalPrice($item->getPriceInclTax() - $unitTax);
$item->setPrice($item->getBasePriceInclTax() - $baseUnitTax);
$item->setBasePrice($item->getBasePriceInclTax() - $baseUnitTax);
}
$item->setRowTotal($item->getRowTotalInclTax() - $rowTax);
$item->setBaseRowTotal($item->getBaseRowTotalInclTax() - $baseRowTax);
}
$item->setTaxAmount($rowTax);
$item->setBaseTaxAmount($baseRowTax);
$taxGroups[$rateKey]['totals'][] = $calcTotal;
$taxGroups[$rateKey]['base_totals'][] = $baseCalcTotal;
return $this;
}
/**
* Aggregate row totals per tax rate in array
*
* @param Mage_Sales_Model_Quote_Item_Abstract $item
* @param float $rate
* @param array $taxGroups
* @return Mage_Tax_Model_Sales_Total_Quote
*/
protected function _aggregateTaxPerRate($item, $rate, &$taxGroups)
{
$inclTax = $item->getIsPriceInclTax();
$rateKey = (string) $rate;
$taxSubtotal = $subtotal = $item->getTaxableAmount();
$baseTaxSubtotal = $baseSubtotal = $item->getBaseTaxableAmount();
$isWeeeEnabled = $this->_weeeHelper->isEnabled();
$isWeeeTaxable = $this->_weeeHelper->isTaxable();
$item->setTaxPercent($rate);
if (!isset($taxGroups[$rateKey]['totals'])) {
$taxGroups[$rateKey]['totals'] = array();
$taxGroups[$rateKey]['base_totals'] = array();
$taxGroups[$rateKey]['weee_tax'] = array();
$taxGroups[$rateKey]['base_weee_tax'] = array();
}
$hiddenTax = null;
$baseHiddenTax = null;
switch ($this->_helper->getCalculationSequence($this->_store)) {
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_BEFORE_DISCOUNT_ON_INCL:
$rowTax = $this->_calculator->calcTaxAmount($subtotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, $inclTax, false);
if ($isWeeeEnabled && $isWeeeTaxable) {
$weeeTax = $item->getWeeeTaxAppliedRowAmount() * $rate / 100;
$baseWeeeTax = $item->getBaseWeeeTaxAppliedRowAmount() * $rate / 100;
$rowTax += $weeeTax;
$baseRowTax += $baseWeeeTax;
$taxGroups[$rateKey]['weee_tax'][] = $this->_deltaRound($weeeTax, $rateKey, $inclTax);
$taxGroups[$rateKey]['base_weee_tax'][] = $this->_deltaRound($baseWeeeTax, $rateKey, $inclTax);
}
break;
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_EXCL:
case Mage_Tax_Model_Calculation::CALC_TAX_AFTER_DISCOUNT_ON_INCL:
if ($this->_helper->applyTaxOnOriginalPrice($this->_store)) {
$discount = $item->getOriginalDiscountAmount();
$baseDiscount = $item->getBaseOriginalDiscountAmount();
} else {
$discount = $item->getDiscountAmount();
$baseDiscount = $item->getBaseDiscountAmount();
}
//weee discount should be removed when calculating hidden tax
if ($isWeeeEnabled) {
$discount = $discount - $item->getWeeeDiscount();
$baseDiscount = $baseDiscount - $item->getBaseWeeeDiscount();
}
$taxSubtotal = max($subtotal - $discount, 0);
$baseTaxSubtotal = max($baseSubtotal - $baseDiscount, 0);
$rowTax = $this->_calculator->calcTaxAmount($taxSubtotal, $rate, $inclTax, false);
$baseRowTax = $this->_calculator->calcTaxAmount($baseTaxSubtotal, $rate, $inclTax, false);
if ($isWeeeEnabled && $this->_weeeHelper->isTaxable()) {
$weeeTax = ($item->getWeeeTaxAppliedRowAmount() - $item->getWeeeDiscount()) * $rate / 100;
$rowTax += $weeeTax;
$baseWeeeTax = ($item->getBaseWeeeTaxAppliedRowAmount() - $item->getBaseWeeeDiscount()) * $rate / 100;
$baseRowTax += $baseWeeeTax;
$taxGroups[$rateKey]['weee_tax'][] = $weeeTax;
$taxGroups[$rateKey]['base_weee_tax'][] = $baseWeeeTax;
}
if (!$item->getNoDiscount() && $item->getWeeeTaxApplied()) {
$rowTaxBeforeDiscount = $this->_calculator->calcTaxAmount($subtotal, $rate, $inclTax, false);
$baseRowTaxBeforeDiscount = $this->_calculator->calcTaxAmount($baseSubtotal, $rate, $inclTax, false);
if ($isWeeeTaxable) {
$rowTaxBeforeDiscount += $item->getWeeeTaxAppliedRowAmount() * $rate / 100;
$baseRowTaxBeforeDiscount += $item->getBaseWeeeTaxAppliedRowAmount() * $rate / 100;
}
}
if ($inclTax && $discount > 0) {
$hiddenTax = $this->_calculator->calcTaxAmount($discount, $rate, $inclTax, false);
$baseHiddenTax = $this->_calculator->calcTaxAmount($baseDiscount, $rate, $inclTax, false);
$this->_hiddenTaxes[] = array('rate_key' => $rateKey, 'qty' => 1, 'item' => $item, 'value' => $hiddenTax, 'base_value' => $baseHiddenTax, 'incl_tax' => $inclTax);
}
break;
}
$rowTax = $this->_deltaRound($rowTax, $rateKey, $inclTax);
$baseRowTax = $this->_deltaRound($baseRowTax, $rateKey, $inclTax, 'base');
$item->setTaxAmount(max(0, $rowTax));
$item->setBaseTaxAmount(max(0, $baseRowTax));
if (isset($rowTaxBeforeDiscount) && isset($baseRowTaxBeforeDiscount)) {
$taxBeforeDiscount = max(0, $this->_deltaRound($rowTaxBeforeDiscount, $rateKey, $inclTax, 'tax_before_discount'));
$baseTaxBeforeDiscount = max(0, $this->_deltaRound($baseRowTaxBeforeDiscount, $rateKey, $inclTax, 'tax_before_discount_base'));
$item->setDiscountTaxCompensation($taxBeforeDiscount - max(0, $rowTax));
$item->setBaseDiscountTaxCompensation($baseTaxBeforeDiscount - max(0, $baseRowTax));
}
$rowTotalInclTax = $item->getRowTotalInclTax();
if (!isset($rowTotalInclTax)) {
$weeeTaxBeforeDiscount = 0;
$baseWeeeTaxBeforeDiscount = 0;
if ($isWeeeTaxable) {
$weeeTaxBeforeDiscount = $item->getWeeeTaxAppliedRowAmount() * $rate / 100;
$baseWeeeTaxBeforeDiscount = $item->getBaseWeeeTaxAppliedRowAmount() * $rate / 100;
}
if ($this->_config->priceIncludesTax($this->_store)) {
$item->setRowTotalInclTax($subtotal + $weeeTaxBeforeDiscount);
$item->setBaseRowTotalInclTax($baseSubtotal + $baseWeeeTaxBeforeDiscount);
} else {
$taxCompensation = $item->getDiscountTaxCompensation() ? $item->getDiscountTaxCompensation() : 0;
$item->setRowTotalInclTax($subtotal + $rowTax + $taxCompensation);
$item->setBaseRowTotalInclTax($baseSubtotal + $baseRowTax + $item->getBaseDiscountTaxCompensation());
}
}
$taxGroups[$rateKey]['totals'][] = max(0, $taxSubtotal);
$taxGroups[$rateKey]['base_totals'][] = max(0, $baseTaxSubtotal);
return $this;
}
