<?php
class ControllerExtensionPaymentRealex extends Controller {

    public function index() {
        $this->load->language('extension/payment/realex');

        $data['entry_cc_type'] = $this->language->get('entry_cc_type');

        $data['help_select_card'] = $this->language->get('help_select_card');

        $data['button_confirm'] = $this->language->get('button_confirm');

        $this->load->model('checkout/order');

        $order_info = $this->model_checkout_order->getOrder($this->session->data['order_id']);

        if ($this->config->get('realex_live_demo') == 1) {
            $data['action'] = $this->config->get('realex_live_url');
        } else {
            $data['action'] = $this->config->get('realex_demo_url');
        }

        if ($this->config->get('realex_card_select') == 1) {
            $card_types = array(
                'visa'   => $this->language->get('text_card_visa'),
                'mc'     => $this->language->get('text_card_mc'),
                'amex'   => $this->language->get('text_card_amex'),
                'switch' => $this->language->get('text_card_switch'),
                'laser'  => $this->language->get('text_card_laser'),
                'diners' => $this->language->get('text_card_diners'),
            );

            $data['cards'] = array();

            $accounts = $this->config->get('realex_account');

            foreach ($accounts as $card => $account) {
                if (isset($account['enabled']) && $account['enabled'] == 1) {
                    $data['cards'][] = array(
                        'type'    => $card_types[$card],
                        'account' => (isset($account['default']) && $account['default'] == 1 ? $this->config->get('realex_merchant_id') : $account['merchant_id']),
                    );
                }
            }

            $data['card_select'] = true;
        } else {
            $data['card_select'] = false;
        }

        if ($this->config->get('realex_auto_settle') == 0) {
            $data['settle'] = 0;
        } elseif ($this->config->get('realex_auto_settle') == 1) {
            $data['settle'] = 1;
        } elseif ($this->config->get('realex_auto_settle') == 2) {
            $data['settle'] = 'MULTI';
        }

        $data['tss'] = (int)$this->config->get('realex_tss_check');
        $data['merchant_id'] = $this->config->get('realex_merchant_id');

        $data['timestamp'] = strftime("%Y%m%d%H%M%S");
        $data['order_id'] = $this->session->data['order_id'] . 'T' . $data['timestamp'] . mt_rand(1, 999);

        $data['amount'] = round($this->currency->format($order_info['total'], $order_info['currency_code'], $order_info['currency_value'], false) * 100);
        $data['currency'] = $order_info['currency_code'];

        $tmp = $data['timestamp'] . '.' . $data['merchant_id'] . '.' . $data['order_id'] . '.' . $data['amount'] . '.' . $data['currency'];
        $hash = sha1($tmp);
        $tmp = $hash . '.' . $this->config->get('realex_secret');
        $data['hash'] = sha1($tmp);

        $data['billing_code'] = filter_var(str_replace('-', '', $order_info['payment_postcode']), FILTER_SANITIZE_NUMBER_INT) . '|' . filter_var(str_replace('-', '', $order_info['payment_address_1']), FILTER_SANITIZE_NUMBER_INT);
        $data['payment_country'] = $order_info['payment_iso_code_2'];

        if ($this->cart->hasShipping()) {
            $data['shipping_code'] = filter_var(str_replace('-', '', $order_info['shipping_postcode']), FILTER_SANITIZE_NUMBER_INT) . '|' . filter_var(str_replace('-', '', $order_info['shipping_address_1']), FILTER_SANITIZE_NUMBER_INT);
            $data['shipping_country'] = $order_info['shipping_iso_code_2'];
        } else {
            $data['shipping_code'] = filter_var(str_replace('-', '', $order_info['payment_postcode']), FILTER_SANITIZE_NUMBER_INT) . '|' . filter_var(str_replace('-', '', $order_info['payment_address_1']), FILTER_SANITIZE_NUMBER_INT);
            $data['shipping_country'] = $order_info['payment_iso_code_2'];
        }

        $data['response_url'] = HTTPS_SERVER . 'index.php?route=extension/payment/realex/notify';

        return $this->load->view('extension/payment/realex', $data);
    }

    public function notify() {
        $this->load->model('extension/payment/realex');

        $this->model_extension_payment_realex->logger(print_r($this->request->post, 1));

        $this->load->language('extension/payment/realex');

        $hash = sha1($this->request->post['TIMESTAMP'] . '.' . $this->config->get('realex_merchant_id') . '.' . $this->request->post['ORDER_ID'] . '.' . $this->request->post['RESULT'] . '.' . $this->request->post['MESSAGE'] . '.' . $this->request->post['PASREF'] . '.' . $this->request->post['AUTHCODE']);
        $tmp = $hash . '.' . $this->config->get('realex_secret');
        $hash = sha1($tmp);

        //Check to see if hashes match or not
        if ($hash != $this->request->post['SHA1HASH']) {
            $data['text_response'] = $this->language->get('text_hash_failed');
            $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
        } else {
            $this->load->model('checkout/order');

            $order_id_parts = explode('T', $this->request->post['ORDER_ID']);
            $order_id = (int)$order_id_parts[0];

            $order_info = $this->model_checkout_order->getOrder($order_id);

            $auto_settle = (int)$this->config->get('realex_auto_settle');
            $tss = (int)$this->config->get('realex_tss_check');

            $message = '<strong>' . $this->language->get('text_result') . ':</strong> ' . $this->request->post['RESULT'];
            $message .= '<br /><strong>' . $this->language->get('text_message') . ':</strong> ' . $this->request->post['MESSAGE'];

            if (isset($this->request->post['ORDER_ID'])) {
                $message .= '<br /><strong>' . $this->language->get('text_order_ref') . ':</strong> ' . $this->request->post['ORDER_ID'];
            }

            if (isset($this->request->post['CVNRESULT'])) {
                $message .= '<br /><strong>' . $this->language->get('text_cvn_result') . ':</strong> ' . $this->request->post['CVNRESULT'];
            }

            if (isset($this->request->post['AVSPOSTCODERESULT'])) {
                $message .= '<br /><strong>' . $this->language->get('text_avs_postcode') . ':</strong> ' . $this->request->post['AVSPOSTCODERESULT'];
            }

            if (isset($this->request->post['AVSADDRESSRESULT'])) {
                $message .= '<br /><strong>' . $this->language->get('text_avs_address') . ':</strong> ' . $this->request->post['AVSADDRESSRESULT'];
            }

            //3D Secure message
            if (isset($this->request->post['ECI']) && isset($this->request->post['CAVV']) && isset($this->request->post['XID'])) {
                $eci = $this->request->post['ECI'];

                if (($this->request->post['ECI'] == 6 || $this->request->post['ECI'] == 1) && empty($this->request->post['CAVV']) && empty($this->request->post['XID'])) {
                    $scenario_id = 1;
                }

                if (($this->request->post['ECI'] == 5 || $this->request->post['ECI'] == 0) && !empty($this->request->post['CAVV']) && !empty($this->request->post['XID'])) {
                    $scenario_id = 5;
                }

                if (($this->request->post['ECI'] == 6 || $this->request->post['ECI'] == 1) && !empty($this->request->post['CAVV']) && !empty($this->request->post['XID'])) {
                    $scenario_id = 6;
                }

                if (isset($scenario_id)) {
                    $scenario_message = $this->language->get('text_3d_s' . $scenario_id);
                } else {
                    if (isset($this->request->post['CARDTYPE'])) {
                        if ($this->request->post['CARDTYPE'] == 'VISA') {
                            $eci = 7;
                        } else {
                            $eci = 2;
                        }
                    }

                    $scenario_message = $this->language->get('text_3d_liability');
                }

                $message .= '<br /><strong>' . $this->language->get('text_eci') . ':</strong> (' . $eci . ') ' . $scenario_message;
            }

            if ($tss == 1 && isset($this->request->post['TSS'])) {
                $message .= '<br /><strong>' . $this->language->get('text_tss') . ':</strong> ' . $this->request->post['TSS'];
            }

            if (isset($this->request->post['TIMESTAMP'])) {
                $message .= '<br /><strong>' . $this->language->get('text_timestamp') . ':</strong> ' . $this->request->post['TIMESTAMP'];
            }

            if (isset($this->request->post['CARDDIGITS'])) {
                $message .= '<br /><strong>' . $this->language->get('text_card_digits') . ':</strong> ' . $this->request->post['CARDDIGITS'];
            }

            if (isset($this->request->post['CARDTYPE'])) {
                $message .= '<br /><strong>' . $this->language->get('text_card_type') . ':</strong> ' . $this->request->post['CARDTYPE'];
            }

            if (isset($this->request->post['EXPDATE'])) {
                $message .= '<br /><strong>' . $this->language->get('text_card_exp') . ':</strong> ' . $this->request->post['EXPDATE'];
            }

            if (isset($this->request->post['CARDNAME'])) {
                $message .= '<br /><strong>' . $this->language->get('text_card_name') . ':</strong> ' . $this->request->post['CARDNAME'];
            }

            if (isset($this->request->post['DCCAUTHCARDHOLDERAMOUNT']) && isset($this->request->post['DCCAUTHRATE'])) {
                $message .= '<br /><strong>DCCAUTHCARDHOLDERAMOUNT:</strong> ' . $this->request->post['DCCAUTHCARDHOLDERAMOUNT'];
                $message .= '<br /><strong>DCCAUTHRATE:</strong> ' . $this->request->post['DCCAUTHRATE'];
                $message .= '<br /><strong>DCCAUTHCARDHOLDERCURRENCY:</strong> ' . $this->request->post['DCCAUTHCARDHOLDERCURRENCY'];
                $message .= '<br /><strong>DCCAUTHMERCHANTCURRENCY:</strong> ' . $this->request->post['DCCAUTHMERCHANTCURRENCY'];
                $message .= '<br /><strong>DCCAUTHMERCHANTAMOUNT:</strong> ' . $this->request->post['DCCAUTHMERCHANTAMOUNT'];
                $message .= '<br /><strong>DCCCCP:</strong> ' . $this->request->post['DCCCCP'];
                $message .= '<br /><strong>DCCRATE:</strong> ' . $this->request->post['DCCRATE'];
                $message .= '<br /><strong>DCCMARGINRATEPERCENTAGE:</strong> ' . $this->request->post['DCCMARGINRATEPERCENTAGE'];
                $message .= '<br /><strong>DCCEXCHANGERATESOURCENAME:</strong> ' . $this->request->post['DCCEXCHANGERATESOURCENAME'];
                $message .= '<br /><strong>DCCCOMMISSIONPERCENTAGE:</strong> ' . $this->request->post['DCCCOMMISSIONPERCENTAGE'];
                $message .= '<br /><strong>DCCEXCHANGERATESOURCETIMESTAMP:</strong> ' . $this->request->post['DCCEXCHANGERATESOURCETIMESTAMP'];
                $message .= '<br /><strong>DCCCHOICE:</strong> ' . $this->request->post['DCCCHOICE'];
            }

            if ($this->request->post['RESULT'] == "00") {
                $realex_order_id = $this->model_extension_payment_realex->addOrder($order_info, $this->request->post['PASREF'], $this->request->post['AUTHCODE'], $this->request->post['ACCOUNT'], $this->request->post['ORDER_ID']);

                if ($auto_settle == 1) {
                    $this->model_extension_payment_realex->addTransaction($realex_order_id, 'payment', $order_info);
                    $this->model_checkout_order->addOrderHistory($order_id, $this->config->get('realex_order_status_success_settled_id'), $message, false);
                } else {
                    $this->model_extension_payment_realex->addTransaction($realex_order_id, 'auth', 0.00);
                    $this->model_checkout_order->addOrderHistory($order_id, $this->config->get('realex_order_status_success_unsettled_id'), $message, false);
                }

                $data['text_response'] = $this->language->get('text_success');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/success', '', true));
            } elseif ($this->request->post['RESULT'] == "101") {
                // Decline
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_id'), $message);
                $data['text_response'] = $this->language->get('text_decline');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            } elseif ($this->request->post['RESULT'] == "102") {
                // Referal B
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_pending_id'), $message);
                $data['text_response'] = $this->language->get('text_decline');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            } elseif ($this->request->post['RESULT'] == "103") {
                // Referal A
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_stolen_id'), $message);
                $data['text_response'] = $this->language->get('text_decline');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            } elseif ($this->request->post['RESULT'] == "200") {
                // Error Connecting to Bank
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_bank_id'), $message);
                $data['text_response'] = $this->language->get('text_bank_error');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            } elseif ($this->request->post['RESULT'] == "204") {
                // Error Connecting to Bank
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_bank_id'), $message);
                $data['text_response'] = $this->language->get('text_bank_error');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            } elseif ($this->request->post['RESULT'] == "205") {
                // Comms Error
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_bank_id'), $message);
                $data['text_response'] = $this->language->get('text_bank_error');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            } else {
                // Other error
                $this->model_extension_payment_realex->addHistory($order_id, $this->config->get('realex_order_status_decline_id'), $message);
                $data['text_response'] = $this->language->get('text_generic_error');
                $data['text_link'] = sprintf($this->language->get('text_link'), $this->url->link('checkout/checkout', '', true));
            }
        }

        $this->response->setOutput($this->load->view('extension/payment/realex_response', $data));
    }

}