fBrignoli
f371f3e3bc
git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@8105 b9a71923-0436-4b27-9f14-aed3839534dd
145 lines
3.4 KiB
PHP
145 lines
3.4 KiB
PHP
<?php
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/*
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* 2007-2011 PrestaShop
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://opensource.org/licenses/osl-3.0.php
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to http://www.prestashop.com for more information.
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*
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* @author PrestaShop SA <contact@prestashop.com>
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* @copyright 2007-2011 PrestaShop SA
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* @version Release: $Revision$
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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* International Registered Trademark & Property of PrestaShop SA
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*/
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/**
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* @since 1.5.0
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*
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* TaxCaculator is responsible of the tax computation
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*/
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class TaxCalculatorCore
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{
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/**
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* COMBINE_METHOD sum taxes
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* eg: 100€ * (10% + 15%)
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*/
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const COMBINE_METHOD = 1;
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/**
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* ONE_AFTER_ANOTHER_METHOD apply taxes one after another
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* eg: (100€ * 10%) * 15%
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*/
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const ONE_AFTER_ANOTHER_METHOD = 2;
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/**
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* @var array $taxes_rate
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*/
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public $taxes_rate;
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/**
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* @var int $computation_method (COMBINE_METHOD | ONE_AFTER_ANOTHER_METHOD)
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*/
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public $computation_method;
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/**
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* @param array $taxes_rate
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* @param int $computation_method (COMBINE_METHOD | ONE_AFTER_ANOTHER_METHOD)
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*/
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public function __construct(array $taxes_rate, $computation_method = TaxCalculator::COMBINE_METHOD)
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{
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$this->taxes_rate = $taxes_rate;
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$this->computation_method = (int)$computation_method;
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}
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/**
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* Compute and add the taxes to the specified price
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*
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* @param price
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* @return price with taxes
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*/
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public function addTaxes($price)
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{
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$total_price = $price;
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if ($this->computation_method == TaxCalculator::ONE_AFTER_ANOTHER_METHOD)
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{
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foreach ($this->taxes_rate as $tax_rate)
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$total_price = $total_price * (1 + abs($tax_rate) / 100);
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}
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else
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{
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foreach ($this->taxes_rate as $tax_rate)
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{
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if ($tax_rate != 0)
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$total_price = $total_price + ($price * (abs($tax_rate) / 100));
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}
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}
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return $total_price;
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}
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/**
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* Compute and remove the taxes to the specified price
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*
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* @param price
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* @return price without taxes
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*/
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public function removeTaxes($price)
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{
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$total_price = $price;
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if ($this->computation_method == TaxCalculator::ONE_AFTER_ANOTHER_METHOD)
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{
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foreach ($this->taxes_rate as $tax_rate)
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$total_price = $total_price / (1 + abs($tax_rate) / 100);
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}
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else
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{
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$taxes_rate = 0;
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foreach ($this->taxes_rate as $tax_rate)
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$taxes_rate += abs($tax_rate);
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$total_price = $total_price / (1 + (abs($taxes_rate) / 100));
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}
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return $total_price;
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}
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/**
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* @return total taxes rate
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*/
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public function getTaxesRate()
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{
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$taxes_rate = 0;
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if ($this->computation_method == TaxCalculator::ONE_AFTER_ANOTHER_METHOD)
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{
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$taxes_rate = 1;
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foreach ($this->taxes_rate as $rate)
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$taxes_rate *= (1 + (abs($rate) / 100));
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$taxes_rate = $taxes_rate - 1;
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$taxes_rate = $taxes_rate * 100;
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}
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else
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{
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foreach ($this->taxes_rate as $rate)
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$taxes_rate += abs($rate);
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}
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return $taxes_rate;
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}
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}
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