class-wc-gateway-barion.php

<?php

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

require_once 'barion-library/library/BarionClient.php';
require_once 'includes/class-wc-gateway-barion-ipn-handler.php';
require_once 'includes/class-wc-gateway-barion-return-from-payment.php';
require_once 'includes/class-wc-gateway-barion-request.php';

class WC_Gateway_Barion extends WC_Payment_Gateway {

    /**
     * @var WC_Gateway_Barion_Profile_Monitor
     */
    private $profile_monitor;
    /**
     * @var string
     */
    private $barion_pixel_id;
    /**
     * @var BarionClient
     */
    private $barion_client;
    /**
     * @var string
     */
    private $poskey;
	 /**
     * @var string
     */
   	public $payee;
    /**
     * @var string
     */
    private $barion_environment;
    /**
     * @var string[]
     */
    private $supported_currencies;

    public function __construct($profile_monitor) {
        $this->profile_monitor = $profile_monitor;

        $this->id                 = 'barion';
        $this->method_title       = __('Barion', 'pay-via-barion-for-woocommerce');
        $this->method_description = sprintf( __( 'Barion payment gateway sends customers to Barion to enter their payment information. Barion callback requires cURL support to update order statuses after payment. Check the %ssystem status%s page for more details.', 'pay-via-barion-for-woocommerce' ), '<a href="' . admin_url( 'admin.php?page=wc-status' ) . '">', '</a>' );
        $this->has_fields         = false;
        $this->order_button_text  = __( 'Proceed to Barion', 'pay-via-barion-for-woocommerce' );
        $this->supports           = array(
            'products',
            'refunds'
        );
        $this->supported_currencies = array('USD', 'EUR', 'HUF', 'CZK');

        $this->init_form_fields();
        $this->init_settings();

        $this->title = $this->settings['title'];
		$allowedTags = '<p><br><strong><b><i><em><ul><ol><li><h1><h2><h3><h4><h5><h6><blockquote><code><pre>';
        $this->description =  strip_tags($this->settings['description'], $allowedTags);
        $this->barion_environment = BarionEnvironment::Prod;

        if ( array_key_exists('environment', $this->settings) && $this->settings['environment'] == 'test' ) {
            $this->title .= __(' [TEST MODE]', 'pay-via-barion-for-woocommerce');
		$this->description .=sprintf( __(  '<br/><br/>Test mode is <strong>active</strong>.  Test credit card details: %s', 'pay-via-barion-for-woocommerce'), '<a href="https://docs.barion.com/Sandbox#Test_cards">https://docs.barion.com/Sandbox#Test_cards</a>');

            $this->barion_environment = BarionEnvironment::Test;
        }

        $this->poskey = $this->settings['poskey'];
        $this->payee = $this->settings['payee'];
        $this->barion_pixel_id = array_key_exists('barion_pixel_id', $this->settings) ? $this->settings['barion_pixel_id'] : '';

        add_action('woocommerce_update_options_payment_gateways_' . $this->id, array($this, 'process_admin_options'));

        if (!$this->is_selected_currency_supported()) {
            $this->enabled = 'no';
        } else {
            $this->barion_client = new BarionClient($this->poskey, 2, $this->barion_environment);
            $callback_handler = new WC_Gateway_Barion_IPN_Handler($this->barion_client, $this);
            $order_received_handler = new WC_Gateway_Barion_Return_From_Payment($this->barion_client, $this);
            do_action('woocommerce_barion_init', $this->barion_client, $this);
        }
    }

    public function plugin_url() {
        return untrailingslashit(plugins_url('/', __FILE__));
    }

    /** @var boolean */
    static $debug_mode = false;

    /** @var WC_Logger Logger instance */
    static $log = null;

    public static function log($message, $level = 'error') {
        if ($level != 'error' && !self::$debug_mode) {
            return;
        }

        if (empty(self::$log)) {
            self::$log = new WC_Logger();
        }

        self::$log->add('barion', $message);
    }

    /**
    * Get gateway icon.
    * @return string
     */
    public function get_icon() {
        $icon      = $this->plugin_url() . '/assets/barion-card-strip-intl__small.png';
        $info_link = $this->get_icon_info_link();
        $icon_html = '<a href="' . esc_attr( $info_link ) . '" target="_blank"><img src="' . esc_attr( $icon ) . '" alt="' . esc_attr__( 'Barion acceptance mark', 'pay-via-barion-for-woocommerce' ) . '" style="display: inline" /></a>';
        return apply_filters( 'woocommerce_gateway_icon', $icon_html, $this->id );
    }

    function get_icon_info_link() {
        if(get_locale() == "hu_HU") {
            return 'https://www.barion.com/hu/';
        }

        return 'https://www.barion.com/en/';
    }

public function get_order_button_text() {
	return $this->order_button_text;
}

public function get_rejected_status() {
	return $this->settings["rejected_status"];
}
public function get_expired_status() {
	return $this->settings["expired_status"];
}

    function init_form_fields() {
        $this->form_fields = include('includes/settings-barion.php');
    }

    public function admin_options() {
        if ($this->is_selected_currency_supported()) {
            parent::admin_options();
        } else {
            ?>
            <div class="inline error">
                <p>
                    <strong><?php _e('Gateway Disabled', 'woocommerce'); ?></strong>:
                    <?php echo sprintf(__('Barion does not support your store currency. Supported currencies: %s', 'pay-via-barion-for-woocommerce'), implode(', ', $this->supported_currencies)); ?>
                </p>
            </div>
            <?php
        }
    }

    public function is_selected_currency_supported() {
        return in_array(get_woocommerce_currency(), apply_filters('woocommerce_barion_supported_currencies', $this->supported_currencies));
    }

    /**
     * Processes and saves options, send newsletter signup if user agreed.
     */
    public function process_admin_options() {
        parent::process_admin_options();

        try {
            $data = array();
            if($this->settings['tracking_enabled'] === 'yes') {
                $data['url'] = home_url();

                $current_user = wp_get_current_user();
                $data['email'] = $current_user->user_email;
                $data['first_name'] = $current_user->user_firstname;
                $data['last_name'] = $current_user->user_lastname;
                $data['locale'] = get_locale();
                $data['ip'] = $this->get_ip();

                $data['admin_email'] = get_option('admin_email');
                $data['event_name'] = 'Settings saved';
            }
            else {
                $data['event_name'] = 'Settings saved - no newsletter signup';
            }

            wp_remote_get('https://tracking.szelpe.hu/?data=' . base64_encode(json_encode((object)$data)));
        }
        catch(Error $e) {}
        catch(Exception $e) {}
    }

    function get_ip()
    {
        foreach (array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR') as $key)
        {
            if (array_key_exists($key, $_SERVER) === true)
            {
                foreach (array_map('trim', explode(',', $_SERVER[$key])) as $ip)
                {
                    if (filter_var($ip, FILTER_VALIDATE_IP) !== false)
                    {
                        return $ip;
                    }
                }
            }
        }
    }

    function process_payment($order_id) {
        $order = new WC_Order($order_id);

        do_action('woocommerce_barion_process_payment', $order);

        if($order->get_total() <= 0) {
            $this->payment_complete($order);

            return array(
                'result' => 'success',
                'redirect' => $this->get_return_url($order)
            );
        }

        $request = new WC_Gateway_Barion_Request($this->barion_client, $this, $this->profile_monitor);

        $request->prepare_payment($order);

        if(!$request->is_prepared) {
            return array(
                'result' => 'failure'
            );
        }

        $redirectUrl = $request->get_redirect_url();

        $order->add_order_note(__('User redirected to the Barion payment page.', 'pay-via-barion-for-woocommerce') . ' redirectUrl: "' . $redirectUrl . '"');

        return array(
            'result' => 'success',
            'redirect' => $redirectUrl
        );
    }

    /**
     * Process a refund if supported.
     * @param  int    $order_id
     * @param  float  $amount
     * @param  string $reason
     * @return bool True or false based on success, or a WP_Error object
     */
    public function process_refund($order_id, $amount = null, $reason = '') {
        $order = new WC_Order( $order_id );

        if(!$this->can_refund_order($order)) {
            $this->log('Refund Failed: No transaction ID');
            return new WP_Error('error', __('Refund Failed: No transaction ID', 'pay-via-barion-for-woocommerce'));
        }

        include_once('includes/class-wc-gateway-barion-refund.php');
        $barionRefund = new WC_Gateway_Barion_Refund($this->barion_client, $this);
        $result = $barionRefund->refund_order($order, $amount, $reason);

        if($barionRefund->refund_succeeded) {
            $order->add_order_note(sprintf(__('Refunded %s - Refund ID: %s', 'pay-via-barion-for-woocommerce' ), wc_price($barionRefund->refund_amount), $barionRefund->refund_transaction_id));

            return true;
        }

        $wp_error = new WP_Error('barion_refund', __('Barion refund failed.', 'pay-via-barion-for-woocommerce'));

        if(!empty($result->Errors)) {
            foreach($result->Errors as $error) {
                $wp_error->add($error->ErrorCode, $error->Title . ' ' . $error->Description);
            }
        }

        return $wp_error;
    }

    public function can_refund_order($order) {
        return $order && $order->get_transaction_id() && $this->get_barion_payment_id($order);
    }

    const BARION_PAYMENT_ID_META_KEY = 'Barion paymentId';
    public function get_barion_payment_id($order) {
        $paymentMeta = $order->get_meta(self::BARION_PAYMENT_ID_META_KEY);

        if(empty($paymentMeta)) {
            return null;
        }

        return $paymentMeta;
    }

    public function set_barion_payment_id($order, $paymentId) {
        $order->update_meta_data(self::BARION_PAYMENT_ID_META_KEY, $paymentId);
        $order->save();
    }

    public function payment_complete($order, $transaction_id = '') {
        $order->payment_complete($transaction_id);
        $this->update_order_status($order);
    }

    public function update_order_status($order) {
        if(empty($this->settings) || empty($this->settings['order_status'])) {
            WC_Gateway_Barion::log("settings['order_status'] is empty");
            return;
        }

        $should_update_status = $this->settings['order_status'] != 'automatic';
        $should_update_status = apply_filters('woocommerce_barion_should_update_order_status', $should_update_status, $order);

        if($should_update_status) {
            $order_status = apply_filters('woocommerce_barion_order_status', $this->settings['order_status'], $order);

            $order->update_status($order_status, __('Order status updated based on the settings.', 'pay-via-barion-for-woocommerce'));
        }
    }

    public function get_barion_pixel_id() {
        return $this->barion_pixel_id;
    }
}