<?php
/*
* 2007-2015 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 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:
* http://opensource.org/licenses/afl-3.0.php
* 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 http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2015 PrestaShop SA
*  @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

use PrestaShop\PrestaShop\Core\Module\WidgetInterface;
use PrestaShop\PrestaShop\Adapter\ObjectPresenter;

if (!defined('_PS_VERSION_')) {
    exit;
}

class Ps_Currencyselector extends Module implements WidgetInterface
{
    private $templateFile;

    public function __construct()
    {
        $this->name = 'ps_currencyselector';
        $this->author = 'PrestaShop';
        $this->version = '2.0.0';
        $this->need_instance = 0;

        parent::__construct();

        $this->displayName = $this->trans('Currency block', array(), 'Modules.Currencyselector.Admin');
        $this->description = $this->trans('Adds a block allowing customers to choose their preferred shopping currency.', array(), 'Modules.Currencyselector.Admin');

        $this->ps_versions_compliancy = array('min' => '1.7.1.0', 'max' => _PS_VERSION_);

        $this->templateFile = 'module:ps_currencyselector/ps_currencyselector.tpl';
    }

    public function install()
    {
        return (parent::install()
            && $this->registerHook('actionAdminCurrenciesControllerSaveAfter'));
    }

    public function hookActionAdminCurrenciesControllerSaveAfter($params) {
        return parent::_clearCache($this->templateFile);
    }

    public function getWidgetVariables($hookName, array $configuration)
    {
        $current_currency = null;
        $serializer = new ObjectPresenter;
        $currencies = array_map(
            function ($currency) use ($serializer, &$current_currency) {
                $currencyArray = $serializer->present($currency);

                // serializer doesn't see 'sign' because it is not a regular
                // ObjectModel field.
                $currencyArray['sign'] = $currency->sign;

                $url = $this->context->link->getLanguageLink($this->context->language->id);

                $parsedUrl = parse_url($url);
                $urlParams = array();
                if (isset($parsedUrl['query'])) {
                    parse_str($parsedUrl['query'], $urlParams);
                }
                $newParams = array_merge(
                    $urlParams,
                    array(
                        'SubmitCurrency' => 1,
                        'id_currency' => $currency->id,
                    )
                );
                $newUrl = sprintf('%s://%s%s%s?%s',
                    $parsedUrl['scheme'],
                    $parsedUrl['host'],
                    isset($parsedUrl['port']) ? ':' . $parsedUrl['port'] : '',
                    $parsedUrl['path'],
                    http_build_query($newParams)
                );

                $currencyArray['url'] = $newUrl;

                if ($currency->id === $this->context->currency->id) {
                    $currencyArray['current'] = true;
                    $current_currency = $currencyArray;
                } else {
                    $currencyArray['current'] = false;
                }

                return $currencyArray;
            },
            Currency::getCurrencies(true, true)
        );

        return array(
            'currencies' => $currencies,
            'current_currency' => $current_currency
        );
    }

    public function renderWidget($hookName, array $configuration)
    {
        if (Configuration::isCatalogMode() || !Currency::isMultiCurrencyActivated()) {
            return false;
        }

        $this->smarty->assign($this->getWidgetVariables($hookName, $configuration));

        return $this->fetch($this->templateFile);
    }
}