<?php
class ControllerExtensionPaymentSagepayUS extends Controller {

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

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

        $data['entry_cc_owner'] = $this->language->get('entry_cc_owner');
        $data['entry_cc_number'] = $this->language->get('entry_cc_number');
        $data['entry_cc_expire_date'] = $this->language->get('entry_cc_expire_date');
        $data['entry_cc_cvv2'] = $this->language->get('entry_cc_cvv2');

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

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

        for ($i = 1; $i <= 12; $i++) {
            $data['months'][] = array(
                'text'  => strftime('%B', mktime(0, 0, 0, $i, 1, 2000)),
                'value' => sprintf('%02d', $i)
            );
        }

        $today = getdate();

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

        for ($i = $today['year']; $i < $today['year'] + 11; $i++) {
            $data['year_expire'][] = array(
                'text'  => strftime('%Y', mktime(0, 0, 0, 1, 1, $i)),
                'value' => strftime('%Y', mktime(0, 0, 0, 1, 1, $i))
            );
        }

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

    public function send() {
        $this->load->model('checkout/order');

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

        $url = 'https://www.sagepayments.net/cgi-bin/eftbankcard.dll?transaction';

        $data = 'm_id=' . $this->config->get('sagepay_us_merchant_id');
        $data .= '&m_key=' . $this->config->get('sagepay_us_merchant_key');
        $data .= '&T_amt=' . urlencode($this->currency->format($order_info['total'], $order_info['currency_code'], 1.00000, false));
        $data .= '&T_ordernum=' . $this->session->data['order_id'];
        $data .= '&C_name=' . urlencode($this->request->post['cc_owner']);
        $data .= '&C_address=' . urlencode($order_info['payment_address_1']);
        $data .= '&C_state=' . urlencode($order_info['payment_zone']);
        $data .= '&C_city=' . urlencode($order_info['payment_city']);
        $data .= '&C_cardnumber=' . urlencode($this->request->post['cc_number']);
        $data .= '&C_exp=' . urlencode($this->request->post['cc_expire_date_month'] . substr($this->request->post['cc_expire_date_year'], '2'));
        $data .= '&C_cvv=' . urlencode($this->request->post['cc_cvv2']);
        $data .= '&C_zip=' . urlencode($order_info['payment_postcode']);
        $data .= '&C_email=' . urlencode($order_info['email']);
        $data .= '&T_code=02';

        $ch = curl_init();

        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        $response = curl_exec($ch);

        curl_close($ch);

        $json = array();

        if ($response[1] == 'A') {
            $message = 'Approval Indicator: ' . $response[1] . "\n";
            $message .= 'Approval/Error Code: ' . substr($response, 2, 6) . "\n";
            $message .= 'Approval/Error Message: ' . substr($response, 8, 32) . "\n";
            $message .= 'Front-End Indicator: ' . substr($response, 40, 2) . "\n";
            $message .= 'CVV Indicator: ' . $response[42] . "\n";
            $message .= 'AVS Indicator: ' . $response[43] . "\n";
            $message .= 'Risk Indicator: ' . substr($response, 44, 2) . "\n";
            $message .= 'Reference: ' . substr($response, 46, 10) . "\n";
            $message .= 'Order Number: ' . substr($response, strpos($response, chr(28)) + 1, strrpos($response, chr(28) - 1)) . "\n";

            $this->model_checkout_order->addOrderHistory($this->session->data['order_id'], $this->config->get('sagepay_us_order_status_id'), $message, false);

            $json['redirect'] = $this->url->link('checkout/success');
        } else {
            $json['error'] = substr($response, 8, 32);
        }

        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput(json_encode($json));
    }

}