76 lines
2.2 KiB
PHP
76 lines
2.2 KiB
PHP
<?php
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class AverageTaxOfProductsTaxCalculator
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{
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private $id_order;
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private $configuration;
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private $db;
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public $computation_method = 'average_tax_of_products';
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public function __construct(Core_Foundation_Database_DatabaseInterface $db, Core_Business_ConfigurationInterface $configuration)
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{
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$this->db = $db;
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$this->configuration = $configuration;
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}
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private function getProductTaxes()
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{
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$prefix = $this->configuration->get('_DB_PREFIX_');
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$sql = 'SELECT t.id_tax, t.rate, od.total_price_tax_excl FROM '.$prefix.'orders o
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INNER JOIN '.$prefix.'order_detail od ON od.id_order = o.id_order
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INNER JOIN '.$prefix.'order_detail_tax odt ON odt.id_order_detail = od.id_order_detail
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INNER JOIN '.$prefix.'tax t ON t.id_tax = odt.id_tax
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WHERE o.id_order = '.(int)$this->id_order;
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return $this->db->select($sql);
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}
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public function setIdOrder($id_order)
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{
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$this->id_order = $id_order;
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return $this;
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}
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public function getTaxesAmount($price_before_tax, $price_after_tax = null, $round_precision = 2, $round_mode = null)
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{
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$amounts = array();
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$total_base = 0;
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foreach ($this->getProductTaxes() as $row) {
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if (!array_key_exists($row['id_tax'], $amounts)) {
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$amounts[$row['id_tax']] = array(
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'rate' => $row['rate'],
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'base' => 0
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);
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}
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$amounts[$row['id_tax']]['base'] += $row['total_price_tax_excl'];
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$total_base += $row['total_price_tax_excl'];
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}
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$actual_tax = 0;
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foreach ($amounts as &$data) {
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$data = Tools::ps_round(
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$price_before_tax * ($data['base'] / $total_base) * $data['rate'] / 100,
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$round_precision,
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$round_mode
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);
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$actual_tax += $data;
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}
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unset($data);
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if ($price_after_tax) {
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Tools::spreadAmount(
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$price_after_tax - $price_before_tax - $actual_tax,
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$round_precision,
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$amounts,
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'id_tax'
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);
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}
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return $amounts;
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}
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}
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