<?php
/**
 * 2007-2019 PrestaShop and Contributors
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://www.prestashop.com for more information.
 *
 * @author    PrestaShop SA <contact@prestashop.com>
 * @copyright 2007-2019 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 * International Registered Trademark & Property of PrestaShop SA
 */
use PrestaShop\PrestaShop\Adapter\ServiceLocator;

/**
 * @since 1.5.0.1
 */
class TaxRulesTaxManagerCore implements TaxManagerInterface
{
    public $address;
    public $type;
    public $tax_calculator;

    /**
     * @var \PrestaShop\PrestaShop\Core\ConfigurationInterface
     */
    private $configurationManager;

    /**
     * @param Address $address
     * @param mixed $type An additional parameter for the tax manager (ex: tax rules id for TaxRuleTaxManager)
     */
    public function __construct(Address $address, $type, PrestaShop\PrestaShop\Core\ConfigurationInterface $configurationManager = null)
    {
        if ($configurationManager === null) {
            $this->configurationManager = ServiceLocator::get('\\PrestaShop\\PrestaShop\\Core\\ConfigurationInterface');
        } else {
            $this->configurationManager = $configurationManager;
        }

        $this->address = $address;
        $this->type = $type;
    }

    /**
     * Returns true if this tax manager is available for this address.
     *
     * @return bool
     */
    public static function isAvailableForThisAddress(Address $address)
    {
        return true; // default manager, available for all addresses
    }

    /**
     * Return the tax calculator associated to this address.
     *
     * @return TaxCalculator
     */
    public function getTaxCalculator()
    {
        static $tax_enabled = null;

        if (isset($this->tax_calculator)) {
            return $this->tax_calculator;
        }

        if ($tax_enabled === null) {
            $tax_enabled = $this->configurationManager->get('PS_TAX');
        }

        if (!$tax_enabled) {
            return new TaxCalculator(array());
        }

        $taxes = array();
        $postcode = 0;

        if (!empty($this->address->postcode)) {
            $postcode = $this->address->postcode;
        }

        $cache_id = (int) $this->address->id_country . '-' . (int) $this->address->id_state . '-' . $postcode . '-' . (int) $this->type;

        if (!Cache::isStored($cache_id)) {
            $rows = Db::getInstance()->executeS('
				SELECT tr.*
				FROM `' . _DB_PREFIX_ . 'tax_rule` tr
				JOIN `' . _DB_PREFIX_ . 'tax_rules_group` trg ON (tr.`id_tax_rules_group` = trg.`id_tax_rules_group`)
				WHERE trg.`active` = 1
				AND tr.`id_country` = ' . (int) $this->address->id_country . '
				AND tr.`id_tax_rules_group` = ' . (int) $this->type . '
				AND tr.`id_state` IN (0, ' . (int) $this->address->id_state . ')
				AND (\'' . pSQL($postcode) . '\' BETWEEN tr.`zipcode_from` AND tr.`zipcode_to`
					OR (tr.`zipcode_to` = 0 AND tr.`zipcode_from` IN(0, \'' . pSQL($postcode) . '\')))
				ORDER BY tr.`zipcode_from` DESC, tr.`zipcode_to` DESC, tr.`id_state` DESC, tr.`id_country` DESC');

            $behavior = 0;
            $first_row = true;

            foreach ($rows as $row) {
                $tax = new Tax((int) $row['id_tax']);

                $taxes[] = $tax;

                // the applied behavior correspond to the most specific rules
                if ($first_row) {
                    $behavior = $row['behavior'];
                    $first_row = false;
                }

                if ($row['behavior'] == 0) {
                    break;
                }
            }
            $result = new TaxCalculator($taxes, $behavior);
            Cache::store($cache_id, $result);

            return $result;
        }

        return Cache::retrieve($cache_id);
    }
}
