<?php
class ModelExtensionPaymentEway extends Model
{

    public function getMethod($address, $total)
    {
        $this->load->language('extension/payment/eway');

        if ($this->config->get('eway_status')) {
            $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "zone_to_geo_zone WHERE geo_zone_id = '" . (int)$this->config->get('eway_standard_geo_zone_id') . "' AND country_id = '" . (int)$address['country_id'] . "' AND (zone_id = '" . (int)$address['zone_id'] . "' OR zone_id = '0')");
            if (!$this->config->get('eway_standard_geo_zone_id')) {
                $status = true;
            } elseif ($query->num_rows) {
                $status = true;
            } else {
                $status = false;
            }
        } else {
            $status = false;
        }

        $method_data = array();

        if ($status) {
            $method_data = array(
              'code'       => 'eway',
              'title'      => $this->language->get('text_title'),
              'terms'      => '',
              'sort_order' => $this->config->get('eway_sort_order')
            );
        }

        return $method_data;
    }

    public function addOrder($order_data)
    {

        $cap = '';
        if ($this->config->get('eway_transaction_method') == 'payment') {
            $cap = ",`capture_status` = '1'";
        }
        $this->db->query("INSERT INTO `" . DB_PREFIX . "eway_order` SET `order_id` = '" . (int)$order_data['order_id'] . "', `created` = NOW(), `modified` = NOW(), `debug_data` = '" . $this->db->escape($order_data['debug_data']) . "', `amount` = '" . $this->currency->format($order_data['amount'],
            $order_data['currency_code'], false,
            false) . "', `currency_code` = '" . $this->db->escape($order_data['currency_code']) . "', `transaction_id` = '" . $this->db->escape($order_data['transaction_id']) . "'{$cap}");

        return $this->db->getLastId();
    }

    public function addTransaction($eway_order_id, $type, $transactionid, $order_info)
    {
        $this->db->query("INSERT INTO `" . DB_PREFIX . "eway_transactions` SET `eway_order_id` = '" . (int)$eway_order_id . "', `created` = NOW(), `transaction_id` = '" . $this->db->escape($transactionid) . "', `type` = '" . $this->db->escape($type) . "', `amount` = '" . $this->currency->format($order_info['total'],
            $order_info['currency_code'], false, false) . "'");

        return $this->db->getLastId();
    }

    public function getCards($customer_id)
    {

        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "eway_card WHERE customer_id = '" . (int)$customer_id . "'");

        $card_data = array();

        $this->load->model('account/address');

        foreach ($query->rows as $row) {

            $card_data[] = array(
              'card_id'     => $row['card_id'],
              'customer_id' => $row['customer_id'],
              'token'       => $row['token'],
              'digits'      => '**** ' . $row['digits'],
              'expiry'      => $row['expiry'],
              'type'        => $row['type'],
            );
        }
        return $card_data;
    }

    public function checkToken($token_id)
    {
        $query = $this->db->query("SELECT * FROM " . DB_PREFIX . "eway_card WHERE token_id = '" . (int)$token_id . "'");
        if ($query->num_rows) {
            return true;
        } else {
            return false;
        }
    }

    public function addCard($order_id, $card_data)
    {
        $this->db->query("INSERT into " . DB_PREFIX . "eway_card SET customer_id = '" . $this->db->escape($card_data['customer_id']) . "', order_id = '" . $this->db->escape($order_id) . "', digits = '" . $this->db->escape($card_data['Last4Digits']) . "', expiry = '" . $this->db->escape($card_data['ExpiryDate']) . "', type = '" . $this->db->escape($card_data['CardType']) . "'");
    }

    public function updateCard($order_id, $token)
    {
        $this->db->query("UPDATE " . DB_PREFIX . "eway_card SET token = '" . $this->db->escape($token) . "' WHERE order_id = '" . (int)$order_id . "'");
    }

    public function updateFullCard($card_id, $token, $card_data)
    {
        $this->db->query("UPDATE " . DB_PREFIX . "eway_card SET token = '" . $this->db->escape($token) . "', digits = '" . $this->db->escape($card_data['Last4Digits']) . "', expiry = '" . $this->db->escape($card_data['ExpiryDate']) . "', type = '" . $this->db->escape($card_data['CardType']) . "' WHERE card_id = '" . (int)$card_id . "'");
    }

    public function deleteCard($order_id)
    {
        $this->db->query("DELETE FROM " . DB_PREFIX . "eway_card WHERE order_id = '" . (int)$order_id . "'");
    }

    public function getAccessCode($request)
    {
        if ($this->config->get('eway_test')) {
            $url = 'https://api.sandbox.ewaypayments.com/AccessCodes';
        } else {
            $url = 'https://api.ewaypayments.com/AccessCodes';
        }

        $response = $this->sendCurl($url, $request);
        $response = json_decode($response);

        return $response;
    }

    public function getSharedAccessCode($request)
    {
        if ($this->config->get('eway_test')) {
            $url = 'https://api.sandbox.ewaypayments.com/AccessCodesShared';
        } else {
            $url = 'https://api.ewaypayments.com/AccessCodesShared';
        }

        $response = $this->sendCurl($url, $request);
        $response = json_decode($response);

        return $response;
    }

    public function getAccessCodeResult($access_code)
    {
        if ($this->config->get('eway_test')) {
            $url = 'https://api.sandbox.ewaypayments.com/AccessCode/' . $access_code;
        } else {
            $url = 'https://api.ewaypayments.com/AccessCode/' . $access_code;
        }

        $response = $this->sendCurl($url, '', false);
        $response = json_decode($response);

        return $response;
    }

    public function sendCurl($url, $data, $is_post = true)
    {
        $ch = curl_init($url);

        $eway_username = html_entity_decode($this->config->get('eway_username'), ENT_QUOTES, 'UTF-8');
        $eway_password = html_entity_decode($this->config->get('eway_password'), ENT_QUOTES, 'UTF-8');

        curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/json"));
        curl_setopt($ch, CURLOPT_USERPWD, $eway_username . ":" . $eway_password);
        if ($is_post) {
            curl_setopt($ch, CURLOPT_POST, 1);
            curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
        } else {
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
        }
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_TIMEOUT, 60);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
        curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
        curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1);

        $response = curl_exec($ch);

        if (curl_errno($ch) != CURLE_OK) {
            $response = new stdClass();
            $response->Errors = "POST Error: " . curl_error($ch) . " URL: $url";
            $this->log(array('error' => curl_error($ch), 'errno' => curl_errno($ch)), 'cURL failed');
            $response = json_encode($response);
        } else {
            $info = curl_getinfo($ch);
            if ($info['http_code'] != 200) {
                $response = new stdClass();
                if ($info['http_code'] == 401 || $info['http_code'] == 404 || $info['http_code'] == 403) {
                    $response->Errors = "Please check the API Key and Password";
                } else {
                    $response->Errors = 'Error connecting to eWAY: ' . $info['http_code'];
                }
                $response = json_encode($response);
            }
        }

        curl_close($ch);

        return $response;
    }

}