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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Tax\Model\Calculation;
use Magento\Customer\Api\Data\AddressInterface as CustomerAddress;
use Magento\Tax\Api\Data\AppliedTaxInterfaceFactory;
use Magento\Tax\Api\Data\AppliedTaxRateInterfaceFactory;
use Magento\Tax\Api\Data\QuoteDetailsItemInterface;
use Magento\Tax\Api\Data\TaxDetailsItemInterface;
use Magento\Tax\Api\Data\TaxDetailsItemInterfaceFactory;
use Magento\Tax\Api\TaxClassManagementInterface;
use Magento\Tax\Model\Calculation;
/**
* @SuppressWarnings(PHPMD.CouplingBetweenObjects)
*/
abstract class AbstractCalculator
{
/**#@+
* Constants for delta rounding key
*/
const KEY_REGULAR_DELTA_ROUNDING = 'regular';
const KEY_APPLIED_TAX_DELTA_ROUNDING = 'applied_tax_amount';
const KEY_TAX_BEFORE_DISCOUNT_DELTA_ROUNDING = 'tax_before_discount';
/**#@-*/
/**#@-*/
protected $taxDetailsItemDataObjectFactory;
/**
* Tax calculation tool
*
* @var Calculation
*/
protected $calculationTool;
/**
* Store id
*
* @var int
*/
protected $storeId;
/**
* Customer tax class id
*
* @var int
*/
protected $customerTaxClassId;
/**
* Customer id
*
* @var int
*/
protected $customerId;
/**
* Shipping Address
*
* @var CustomerAddress
*/
protected $shippingAddress;
/**
* Billing Address
*
* @var CustomerAddress
*/
protected $billingAddress;
/**
* Tax configuration object
*
* @var \Magento\Tax\Model\Config
*/
protected $config;
/**
* Address rate request
*
* Request object contain:
* country_id (->getCountryId())
* region_id (->getRegionId())
* postcode (->getPostcode())
* customer_class_id (->getCustomerClassId())
* store (->getStore())
*
* @var \Magento\Framework\DataObject
*/
private $addressRateRequest = null;
/**
* Rounding deltas for prices
*
* @var string[]
* example:
* [
* 'type' => [
* 'rate' => 'rounding delta',
* ],
* ]
*/
protected $roundingDeltas;
/**
* Tax Class Service
*
* @var TaxClassManagementInterface
*/
protected $taxClassManagement;
/**
* @var AppliedTaxInterfaceFactory
*/
protected $appliedTaxDataObjectFactory;
/**
* @var AppliedTaxRateInterfaceFactory
*/
protected $appliedTaxRateDataObjectFactory;
/**
* Constructor
*
* @param TaxClassManagementInterface $taxClassService
* @param TaxDetailsItemInterfaceFactory $taxDetailsItemDataObjectFactory
* @param AppliedTaxInterfaceFactory $appliedTaxDataObjectFactory
* @param AppliedTaxRateInterfaceFactory $appliedTaxRateDataObjectFactory
* @param Calculation $calculationTool
* @param \Magento\Tax\Model\Config $config
* @param int $storeId
* @param \Magento\Framework\DataObject $addressRateRequest
*/
public function __construct(
TaxClassManagementInterface $taxClassService,
TaxDetailsItemInterfaceFactory $taxDetailsItemDataObjectFactory,
AppliedTaxInterfaceFactory $appliedTaxDataObjectFactory,
AppliedTaxRateInterfaceFactory $appliedTaxRateDataObjectFactory,
Calculation $calculationTool,
\Magento\Tax\Model\Config $config,
$storeId,
\Magento\Framework\DataObject $addressRateRequest = null
) {
$this->taxClassManagement = $taxClassService;
$this->taxDetailsItemDataObjectFactory = $taxDetailsItemDataObjectFactory;
$this->appliedTaxDataObjectFactory = $appliedTaxDataObjectFactory;
$this->appliedTaxRateDataObjectFactory = $appliedTaxRateDataObjectFactory;
$this->calculationTool = $calculationTool;
$this->config = $config;
$this->storeId = $storeId;
$this->addressRateRequest = $addressRateRequest;
}
/**
* Set billing address
*
* @codeCoverageIgnoreStart
* @param CustomerAddress $billingAddress
* @return void
*/
public function setBillingAddress(CustomerAddress $billingAddress)
{
$this->billingAddress = $billingAddress;
}
/**
* Set shipping address
*
* @param CustomerAddress $shippingAddress
* @return void
*/
public function setShippingAddress(CustomerAddress $shippingAddress)
{
$this->shippingAddress = $shippingAddress;
}
/**
* Set customer tax class id
*
* @param int $customerTaxClassId
* @return void
*/
public function setCustomerTaxClassId($customerTaxClassId)
{
$this->customerTaxClassId = $customerTaxClassId;
}
/**
* Set customer id
*
* @param int $customerId
* @return void
*/
public function setCustomerId($customerId)
{
$this->customerId = $customerId;
}
// @codeCoverageIgnoreEnd
/**
* Calculate tax details for quote item with given quantity
*
* @param QuoteDetailsItemInterface $item
* @param int $quantity
* @param bool $round
* @return TaxDetailsItemInterface
*/
public function calculate(QuoteDetailsItemInterface $item, $quantity, $round = true)
{
if ($item->getIsTaxIncluded()) {
return $this->calculateWithTaxInPrice($item, $quantity, $round);
} else {
return $this->calculateWithTaxNotInPrice($item, $quantity, $round);
}
}
/**
* Calculate tax details for quote item with tax in price with given quantity
*
* @param QuoteDetailsItemInterface $item
* @param int $quantity
* @param bool $round
* @return TaxDetailsItemInterface
*/
abstract protected function calculateWithTaxInPrice(QuoteDetailsItemInterface $item, $quantity, $round = true);
/**
* Calculate tax details for quote item with tax not in price with given quantity
*
* @param QuoteDetailsItemInterface $item
* @param int $quantity
* @param bool $round
* @return TaxDetailsItemInterface
*/
abstract protected function calculateWithTaxNotInPrice(QuoteDetailsItemInterface $item, $quantity, $round = true);
/**
* Get address rate request
*
* Request object contain:
* country_id (->getCountryId())
* region_id (->getRegionId())
* postcode (->getPostcode())
* customer_class_id (->getCustomerClassId())
* store (->getStore())
*
* @return \Magento\Framework\DataObject
*/
protected function getAddressRateRequest()
{
if (null == $this->addressRateRequest) {
$this->addressRateRequest = $this->calculationTool->getRateRequest(
$this->shippingAddress,
$this->billingAddress,
$this->customerTaxClassId,
$this->storeId,
$this->customerId
);
}
return $this->addressRateRequest;
}
/**
* Check if tax rate is same as store tax rate
*
* @param float $rate
* @param float $storeRate
* @return bool
*/
protected function isSameRateAsStore($rate, $storeRate)
{
if ((bool)$this->config->crossBorderTradeEnabled($this->storeId)) {
return true;
} else {
return (abs($rate - $storeRate) < 0.00001);
}
}
/**
* Create AppliedTax data object based applied tax rates and tax amount
*
* @param float $rowTax
* @param array $appliedRate
* example:
* [
* 'id' => 'id',
* 'percent' => 7.5,
* 'rates' => [
* 'code' => 'code',
* 'title' => 'title',
* 'percent' => 5.3,
* ],
* ]
* @return \Magento\Tax\Api\Data\AppliedTaxInterface
*/
protected function getAppliedTax($rowTax, $appliedRate)
{
$appliedTaxDataObject = $this->appliedTaxDataObjectFactory->create();
$appliedTaxDataObject->setAmount($rowTax);
$appliedTaxDataObject->setPercent($appliedRate['percent']);
$appliedTaxDataObject->setTaxRateKey($appliedRate['id']);
/** @var \Magento\Tax\Api\Data\AppliedTaxRateInterface[] $rateDataObjects */
$rateDataObjects = [];
foreach ($appliedRate['rates'] as $rate) {
//Skipped position, priority and rule_id
$rateDataObjects[$rate['code']] = $this->appliedTaxRateDataObjectFactory->create()
->setPercent($rate['percent'])
->setCode($rate['code'])
->setTitle($rate['title']);
}
$appliedTaxDataObject->setRates($rateDataObjects);
return $appliedTaxDataObject;
}
/**
* Create AppliedTax data object based on applied tax rates and tax amount
*
* @param float $rowTax
* @param float $totalTaxRate
* @param array $appliedRates May contain multiple tax rates when catalog price includes tax
* example:
* [
* [
* 'id' => 'id1',
* 'percent' => 7.5,
* 'rates' => [
* 'code' => 'code1',
* 'title' => 'title1',
* 'percent' => 5.3,
* ],
* ],
* [
* 'id' => 'id2',
* 'percent' => 8.5,
* 'rates' => [
* 'code' => 'code2',
* 'title' => 'title2',
* 'percent' => 7.3,
* ],
* ],
* ]
* @return \Magento\Tax\Api\Data\AppliedTaxInterface[]
*/
protected function getAppliedTaxes($rowTax, $totalTaxRate, $appliedRates)
{
/** @var \Magento\Tax\Api\Data\AppliedTaxInterface[] $appliedTaxes */
$appliedTaxes = [];
$totalAppliedAmount = 0;
foreach ($appliedRates as $appliedRate) {
if ($appliedRate['percent'] == 0) {
continue;
}
$appliedAmount = $rowTax / $totalTaxRate * $appliedRate['percent'];
//Use delta rounding to split tax amounts for each tax rates between items
$appliedAmount = $this->deltaRound(
$appliedAmount,
$appliedRate['id'],
true,
self::KEY_APPLIED_TAX_DELTA_ROUNDING
);
if ($totalAppliedAmount + $appliedAmount > $rowTax) {
$appliedAmount = $rowTax - $totalAppliedAmount;
}
$totalAppliedAmount += $appliedAmount;
$appliedTaxDataObject = $this->appliedTaxDataObjectFactory->create();
$appliedTaxDataObject->setAmount($appliedAmount);
$appliedTaxDataObject->setPercent($appliedRate['percent']);
$appliedTaxDataObject->setTaxRateKey($appliedRate['id']);
/** @var \Magento\Tax\Api\Data\AppliedTaxRateInterface[] $rateDataObjects */
$rateDataObjects = [];
foreach ($appliedRate['rates'] as $rate) {
//Skipped position, priority and rule_id
$rateDataObjects[$rate['code']] = $this->appliedTaxRateDataObjectFactory->create()
->setPercent($rate['percent'])
->setCode($rate['code'])
->setTitle($rate['title']);
}
$appliedTaxDataObject->setRates($rateDataObjects);
$appliedTaxes[$appliedTaxDataObject->getTaxRateKey()] = $appliedTaxDataObject;
}
return $appliedTaxes;
}
/**
* Round price based on previous rounding operation delta
*
* @param float $price
* @param string $rate
* @param bool $direction
* @param string $type
* @param bool $round
* @return float
*/
protected function deltaRound($price, $rate, $direction, $type = self::KEY_REGULAR_DELTA_ROUNDING, $round = true)
{
if ($price) {
$rate = (string)$rate;
$type = $type . $direction;
// initialize the delta to a small number to avoid non-deterministic behavior with rounding of 0.5
$delta = isset($this->roundingDeltas[$type][$rate]) ?
$this->roundingDeltas[$type][$rate] :
0.000001;
$price += $delta;
$roundPrice = $price;
if ($round) {
$roundPrice = $this->calculationTool->round($roundPrice);
}
$this->roundingDeltas[$type][$rate] = $price - $roundPrice;
$price = $roundPrice;
}
return $price;
}
/**
* Given a store price that includes tax at the store rate, this function will back out the store's tax, and add in
* the customer's tax. Returns this new price which is the customer's price including tax.
*
* @param float $storePriceInclTax
* @param float $storeRate
* @param float $customerRate
* @param boolean $round
* @return float
*/
protected function calculatePriceInclTax($storePriceInclTax, $storeRate, $customerRate, $round = true)
{
$storeTax = $this->calculationTool->calcTaxAmount($storePriceInclTax, $storeRate, true, false);
$priceExclTax = $storePriceInclTax - $storeTax;
$customerTax = $this->calculationTool->calcTaxAmount($priceExclTax, $customerRate, false, false);
$customerPriceInclTax = $priceExclTax + $customerTax;
if ($round) {
$customerPriceInclTax = $this->calculationTool->round($customerPriceInclTax);
}
return $customerPriceInclTax;
}
}