<?php
/*
  Plugin Name: Платежный шлюз Сбербанка
  Plugin URI:
  Description: Позволяет использовать платежный шлюз Сбербанка с плагином WooCommerce
  Version: 1.0
  Author: BPC
  Author URI: http://www.bpcbt.com/
 */

session_start();
require_once 'include.php';
require_once 'text.php';

function logger($var) {
    if ($var) {
        $date = '====== '.date('Y-m-d H:i:s')." =====\n";
        $result = $var;
        if (is_array($var) || is_object($var)) {
            $result = print_r($var, 1);
        }
        $result .= "\n";
        $path = 'wp-content/plugins/rbspayment-for-woocomerce/rbspayment.log';//wp-content/plugins/rbspayment-for-woocomerce/
        error_log($date.$result, 3, $path);
        return true;
    }
    return false;
}

if (DEBUG) {
	// Display errors
	ini_set('display_errors', 1);
	error_reporting(E_ALL & ~E_NOTICE);
}

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly


/* Add a custom payment class to WC
  ------------------------------------------------------------ */
add_action('plugins_loaded', 'woocommerce_rbspayment', 0);
function woocommerce_rbspayment(){
	if (!class_exists('WC_Payment_Gateway'))
		return; // if the WC payment gateway class is not available, do nothing
	if(class_exists('WC_RBSPAYMENT'))
		return;

class callback_function extends WC_Payment_Gateway{
	public function __construct(){
		global $woocommerce;

		if (isset($_GET['rbspayment']) AND $_GET['rbspayment'] == 'result'){
			if ($_SESSION['testmode'] == 'yes'){
				$action_adr = TEST_URL;
			}
			else{
				$action_adr = PROD_URL;
			}

			$action_adr .= 'getOrderStatusExtended.do';

			$args = array(
					'userName' => $_SESSION['userName'],//$this->get_option('merchant'),
					'password' => $_SESSION['password'],//$this->get_option('password'),
					'orderId' => $_GET['orderId'],
				);
			$_SESSION['userName'] = '';
			$_SESSION['password'] = '';
			$_SESSION['testmode'] = '';

			$rbsCurl = curl_init();
			curl_setopt_array($rbsCurl, array(
			    CURLOPT_URL => $action_adr,
			    CURLOPT_RETURNTRANSFER => true,
			    CURLOPT_POST => true,
			    CURLOPT_POSTFIELDS => http_build_query($args)
			));
			$response = curl_exec($rbsCurl);
			curl_close($rbsCurl);
			if (DEBUG) {
				logger('Request: ' . $action_adr . ': ' . print_r($args,true).'Response: ' . $response);
			}
			$response = json_decode($response, true);

			$orderStatus = $response['orderStatus'];
			if ($orderStatus == '1' || $orderStatus == '2') {
				$order_id = $_GET['order_id'];
				$order = new WC_Order($order_id);
				$order->update_status('processing', __('Платеж успешно оплачен', 'woocommerce'));
				WC()->cart->empty_cart();
				$order->payment_complete();
				wp_redirect($this->get_return_url( $order ));
				exit;
			} else {
				$order_id = $_GET['order_id'];
				$order = new WC_Order($order_id);
				$order->update_status('failed', __('Платеж не оплачен', 'woocommerce'));
				add_filter( 'woocommerce_add_to_cart_message', 'my_cart_messages', 99);
				$order->cancel_order();
				// $woocommerce->add_error(__('Ошибка в проведении оплаты<br/>' . $response['actionCodeDescription'], 'woocommerce'));
				wc_add_notice( __('Ошибка в проведении оплаты<br/>' . $response['actionCodeDescription'], 'woocommerce'), 'error' );
				wp_redirect($order->get_cancel_order_url());
				exit;
			}
		}
	}
}

class WC_RBSPAYMENT extends WC_Payment_Gateway{
	public function __construct(){
		$plugin_dir = plugin_dir_url(__FILE__);

		global $woocommerce;

		$this->id = RBSPAYMENT_ID;
		$this->has_fields = false;
		$this->liveurl = PROD_URL;
		$this->testurl = TEST_URL;

		// Load the settings
		$this->init_form_fields();
		$this->init_settings();

		// Define user set variables
		$this->title = $this->get_option('title');
		$this->merchant = $this->get_option('merchant');
		$this->password = $this->get_option('password');
		$this->testmode = $this->get_option('testmode');
		$this->stage = $this->get_option('stage');
		$this->description = $this->get_option('description');

		// Actions
		add_action('valid-rbspayment-standard-ipn-reques', array($this, 'successful_request') );
		add_action('woocommerce_receipt_' . $this->id, array($this, 'receipt_page'));

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

		// Payment listener/API hook
		add_action('woocommerce_api_callback', 'check_response');
		//add_action('woocommerce_api_wc_' . $this->id, array($this, 'check_response'));

		if (!$this->is_valid_for_use()){
			$this->enabled = false;
		}
	}

	/**
	 * Check if this gateway is enabled and available in the user's country
	 */
	function is_valid_for_use(){
		if (!in_array(get_option('woocommerce_currency'), array('RUB'))){
			return false;
		}
		return true;
	}

	/**
	 * Admin Panel Options
	 */
	public function admin_options() {
		?>
		<h3><?php _e(RBSPAYMENT_TITLE_1, 'woocommerce'); ?></h3>
		<p><?php _e(RBSPAYMENT_TITLE_2, 'woocommerce'); ?></p>

	  <?php if ( $this->is_valid_for_use() ) : ?>

		<table class="form-table">

		<?php
    			// Generate the HTML For the settings form.
    			$this->generate_settings_html();
    ?>
    </table><!--/.form-table-->

    <?php else : ?>
		<div class="inline error"><p><strong><?php _e('Шлюз отключен', 'woocommerce'); ?></strong>: <?php _e($this->id.' не поддерживает валюты Вашего магазина.', 'woocommerce' ); ?></p></div>
		<?php
			endif;

    } // End admin_options()

	/**
	 * Initialise Gateway Settings Form Fields
	 */
	function init_form_fields(){
		$this->form_fields = array(
				'enabled' => array(
					'title' => __('Включить/Выключить', 'woocommerce'),
					'type' => 'checkbox',
					'label' => __('Включен', 'woocommerce'),
					'default' => 'yes'
				),
				'title' => array(
					'title' => __('Название', 'woocommerce'),
					'type' => 'text',
					'description' => __( 'Это название, которое пользователь видит во время проверки.', 'woocommerce' ),
					'default' => __($this->id, 'woocommerce')
				),
				'merchant' => array(
					'title' => __('Логин', 'woocommerce'),
					'type' => 'text',
					'description' => __('Пожалуйста введите Логин', 'woocommerce'),
					'default' => ''
				),
				'password' => array(
					'title' => __('Пароль', 'woocommerce'),
					'type' => 'password',
					'description' => __('Пожалуйста введите пароль.', 'woocommerce'),
					'default' => ''
				),
				'stage' => array(
					'title' => __('Одно- или дву-стадийная оплата', 'woocommerce'),
					'type' => 'select',
					'default' => 'one-stage',
					'options' => array(
						'one-stage' => __('Одностадийные платежи', 'woocommerce'),
						'two-stage' => __('Двухстадийные платежи', 'woocommerce'),
					),
				),
				'testmode' => array(
					'title' => __('Тест режим', 'woocommerce'),
					'type' => 'checkbox',
					'label' => __('Включен', 'woocommerce'),
					'description' => __('В этом режиме плата за товар не снимается.', 'woocommerce'),
					'default' => 'no'
				),
				'description' => array(
					'title' => __( 'Description', 'woocommerce' ),
					'type' => 'textarea',
					'description' => __( 'Описанием метода оплаты которое клиент будет видеть на вашем сайте.', 'woocommerce' ),
					'default' => 'Оплата с помощью '.$this->id
				)
			);
	}

	/**
	 * Generate the dibs button link
	 */
	public function generate_form($order_id){
		global $woocommerce;

		$order = new WC_Order( $order_id );

		if ($this->testmode == 'yes'){
			$action_adr = $this->testurl;
		}
		else{
			$action_adr = $this->liveurl;
		}

		if ($this->stage == 'two-stage') {
			$action_adr .= 'registerPreAuth.do';
		} else if ($this->stage == 'one-stage') {
			$action_adr .= 'register.do';
		}

		$_SESSION['userName'] = $this->merchant;
		$_SESSION['password'] = $this->password;
		$_SESSION['testmode'] = $this->testmode;

		for ($i=0; $i++<30;) {
			$args = array(
				'userName' => $this->merchant,
				'password' => $this->password,
				'orderNumber' => $order_id . '_' . $i,
				'amount' => $order->order_total * 100,
				'returnUrl' => SHOP_URL . '?wc-api=callback_function&rbspayment=result&order_id='.$order_id,
			);
			$rbsCurl = curl_init();
			curl_setopt_array($rbsCurl, array(
			    CURLOPT_URL => $action_adr,
			    CURLOPT_RETURNTRANSFER => true,
			    CURLOPT_POST => true,
			    CURLOPT_POSTFIELDS => http_build_query($args)
			));
			$response = curl_exec($rbsCurl);
			curl_close($rbsCurl);

			if (DEBUG) {
				logger('Request: ' . $action_adr . ': ' . print_r($args,true).'Response: ' . $response);
			}
			$response = json_decode($response, true);
			if($response['errorCode'] != '1') break;
		}

		$errorCode = $response['errorCode'];
		if ($errorCode == 0) {
			return '<p>'.__('Спасибо за Ваш заказ, пожалуйста, нажмите кнопку ниже, чтобы заплатить.', 'woocommerce').'</p>'.
			'<a class="button cancel" href="'.$response['formUrl'].'">'.__('Оплатить', 'woocommerce').'</a>'.
			'<a class="button cancel" href="'.$order->get_cancel_order_url().'">'.__('Отказаться от оплаты & вернуться в корзину', 'woocommerce').'</a>';
		}
		else {
			return '<p>'.__('Ошибка #'.$errorCode.': '.$response['errorMessage'], 'woocommerce').'</p>'.
			'<a class="button cancel" href="'.$order->get_cancel_order_url().'">'.__('Отказаться от оплаты & вернуться в корзину', 'woocommerce').'</a>';
		}
	}

	/**
	 * Process the payment and return the result
	 */
	function process_payment($order_id){
		$order = new WC_Order($order_id);

		return array(
			'result' => 'success',
			'redirect'	=> add_query_arg('order', $order->id, add_query_arg('key', $order->order_key, get_permalink(woocommerce_get_page_id('pay'))))
		);
	}

	/**
	 * Receipt page
	 */
	function receipt_page($order){
		echo $this->generate_form($order);
	}

	/**
	 * Check response
	 */
/*
	function check_response() {
		global $woocommerce;
		wp_redirect($this->get_return_url( $order ));
		if (isset($_GET['rbspayment']) AND $_GET['rbspayment'] == 'result'){
			if (DEBUG){
				$action_adr = TEST_URL;
			}
			else{
				$action_adr = PROD_URL;
			}

			$action_adr .= 'getOrderStatusExtended.do';

			$args = array(
					'userName' => 'test',//$this->get_option('merchant'),
					'password' => 'testPwd',//$this->get_option('password'),
					'orderId' => $_GET['orderId'],
				);

			$rbsCurl = curl_init();
			curl_setopt_array($rbsCurl, array(
			    CURLOPT_URL => $action_adr,
			    CURLOPT_RETURNTRANSFER => true,
			    CURLOPT_POST => true,
			    CURLOPT_POSTFIELDS => http_build_query($args)
			));
			$response = curl_exec($rbsCurl);
			curl_close($rbsCurl);
			error_log($response);
			$response = json_decode($response, true);

			$orderStatus = $response['OrderStatus'];
			if ($orderStatus == '1' || $orderStatus == '2') {
				$order_id = $_GET['order_id'];
				$order = new WC_Order($order_id);
				$order->update_status('processing', __('Платеж успешно оплачен', 'woocommerce'));
				WC()->cart->empty_cart();
				$order->payment_complete();
				wp_redirect($this->get_return_url( $order ));
				exit;
			} else {
				$order_id = $_GET['order_id'];
				$order = new WC_Order($order_id);
				$order->update_status('failed', __('Платеж не оплачен', 'woocommerce'));
				add_filter( 'woocommerce_add_to_cart_message', 'my_cart_messages', 99);
				$order->cancel_order();
				$woocommerce->add_error(__('Ошибка в проведении оплаты<br/>' . $response['actionCodeDescription'], 'woocommerce'));
				wp_redirect($order->get_cancel_order_url());
				exit;
			}
		}
	}
*/
}

/**
 * Add the gateway to WooCommerce
 */
function add_rbspayment_gateway($methods){
	$methods[] = 'WC_RBSPAYMENT';
	$methods[] = 'callback_function';
	return $methods;
}

add_filter('woocommerce_payment_gateways', 'add_rbspayment_gateway');
}
?>