<?php
/**
 * PayZen V2-Payment Module version 1.8.0 for PrestaShop 1.5-1.7. Support contact : support@payzen.eu.
 *
 * 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
 *
 * @category  payment
 * @package   payzen
 * @author    Lyra Network (http://www.lyra-network.com/)
 * @copyright 2014-2016 Lyra Network and contributors
 * @license   http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
 */

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

class PayzenMultiPayment extends AbstractPayzenPayment
{
    protected $prefix = 'PAYZEN_MULTI_';
    protected $tpl_name = 'payment_multi.tpl';
    protected $logo = 'BannerLogo2.png';
    protected $name = 'multi';

    public function isAvailable($cart)
    {
        if (!parent::isAvailable($cart)) {
            return false;
        }

        // check available payment options
        $options = self::getAvailableOptions($cart);
        if (empty($options)) {
            return false;
        }

        return true;
    }

    public static function getAvailableOptions($cart = null)
    {
        // multi payment options
        $options = @unserialize(Configuration::get('PAYZEN_MULTI_OPTIONS'));
        if (!is_array($options) || empty($options)) {
            return array();
        }

        if (!$cart) {
            return $options; // all options
        }

        $enabled_options = array();
        foreach ($options as $key => $option) {
            $min = $option['amount_min'];
            $max = $option['amount_max'];

            if (($min == '' || $cart->getOrderTotal() >= $min) && ($max == '' || $cart->getOrderTotal() <= $max)) {
                $default = is_string($option['label']) ? $option['label'] : $option['count'].' x';
                $option_label = is_array($option['label']) && isset($option['label'][$cart->id_lang]) ?
                    $option['label'][$cart->id_lang] : $default;

                $option['localized_label'] = $option_label;

                $enabled_options[$key] = $option;
            }
        }

        return $enabled_options;
    }

    public function getTplVars($cart)
    {
        $vars = parent::getTplVars($cart);
        $vars['payzen_multi_options'] = self::getAvailableOptions($cart);

        $entry_mode = Configuration::get($this->prefix.'CARD_MODE');
        $vars['payzen_multi_card_mode'] = $entry_mode;

        if ($entry_mode === '2') {
            $vars['payzen_avail_cards'] = $this->getPaymentCards();
        }

        return $vars;
    }

    private function getPaymentCards()
    {
        $all_cards = PayzenTools::getSupportedMultiCardTypes();

        // get selected card types
        $config_cards = Configuration::get($this->prefix.'PAYMENT_CARDS');
        if (!empty($config_cards)) {
            $cards = explode(';', $config_cards); // card codes only

            // retrieve card labels
            $avail_cards = array();
            foreach ($all_cards as $code => $label) {
                if (in_array($code, $cards)) {
                    $avail_cards[$code] = $label;
                }
            }
        } else {
            // no card type selected, display all supported cards
            $avail_cards = $all_cards;
        }

        return $avail_cards;
    }

    /**
     * Generate form fields to post to the payment gateway.
     *
     * @param Cart $cart
     * @param array[string][string] $data
     * @return PayzenRequest
     */
    public function prepareRequest($cart, $data = array())
    {
        $request = parent::prepareRequest($cart, $data);

        $multi_options = self::getAvailableOptions($cart);
        $option = $multi_options[$data['opt']];

        $amount = $request->get('amount');

        $config_first = $option['first'];
        $first = $config_first ? round(($config_first / 100) * $amount) : null;
        $request->setMultiPayment(null /* to use already set amount */, $first, $option['count'], $option['period']);

        // override cb contract
        $request->set('contracts', ($option['contract']) ? 'CB='.$option['contract'] : null);

        $request->set('order_info2', 'option_id='.$data['opt']);

        if (isset($data['card_type']) && $data['card_type']) {
            // override payemnt_cards parameter
            $request->set('payment_cards', $data['card_type']);
        }

        // override title to append selected option
        $title = $this->getTitle((int)$cart->id_lang).' ('.$option['count'].' x)';
        $request->set('order_info', $title);

        return $request;
    }

    public function hasForm()
    {
        return true;
    }

    protected function getDefaultTitle()
    {
        return $this->l('Payment by bank card in several times');
    }
}