<?php
class ModelPaymentPPPayflowIFrame extends Model {
    public function install() {
        $this->db->query("
            CREATE TABLE `" . DB_PREFIX . "paypal_payflow_iframe_order` (
                `order_id` int(11) DEFAULT NULL,
                `secure_token_id` varchar(255) NOT NULL,
                `transaction_reference` varchar(255) DEFAULT NULL,
                `transaction_type` varchar(1) DEFAULT NULL,
                `complete` tinyint(4) NOT NULL DEFAULT '0',
                PRIMARY KEY(`order_id`),
                KEY `secure_token_id` (`secure_token_id`)
            ) ENGINE=MyISAM DEFAULT COLLATE=utf8_general_ci");
        
        $this->db->query("
            CREATE TABLE `" . DB_PREFIX . "paypal_payflow_iframe_order_transaction` (
                `order_id` int(11) NOT NULL,
                `transaction_reference` varchar(255) NOT NULL,
                `transaction_type` char(1) NOT NULL,
                `time` datetime NOT NULL,
                `amount` decimal(10,4) DEFAULT NULL,
                PRIMARY KEY (`transaction_reference`),
                KEY `order_id` (`order_id`)
            ) ENGINE=MyISAM DEFAULT CHARSET=utf8;");
    }

    public function uninstall() {
        $this->db->query("DROP TABLE IF EXISTS `" . DB_PREFIX . "paypal_payflow_iframe_order`;");
        $this->db->query("DROP TABLE IF EXISTS `" . DB_PREFIX . "paypal_payflow_iframe_order_transaction`;");
    }
    
    public function log($message) {
        if ($this->config->get('pp_payflow_iframe_debug')) {
            $log = new Log('payflow-iframe.log');
            $log->write($message);
        }
    }
    
    public function getOrder($order_id) {
        $result = $this->db->query("SELECT * FROM " . DB_PREFIX . "paypal_payflow_iframe_order WHERE order_id = " . (int) $order_id);
        
        if ($result->num_rows) {
            $order = $result->row;
        } else {
            $order = false;
        }
        
        return $order;
    }
    
    public function updateOrderStatus($order_id, $status) {
        $this->db->query("
            UPDATE " . DB_PREFIX .  "paypal_payflow_iframe_order
            SET `complete` = " . (int) $status . "
            WHERE order_id = '" . (int) $order_id . "'
        ");
    }
    
    public function addTransaction($data) {
        $this->db->query("
            INSERT INTO " . DB_PREFIX . "paypal_payflow_iframe_order_transaction
            SET order_id = " . (int) $data['order_id'] . ",
                transaction_reference = '" . $this->db->escape($data['transaction_reference']) . "',
                transaction_type = '" . $this->db->escape($data['type']) . "',
                `time` = NOW(),
                `amount` = '" . $this->db->escape($data['amount']) .  "'
        ");
    }
    
    public function getTransactions($order_id) {
        return $this->db->query("
            SELECT *
            FROM " . DB_PREFIX . "paypal_payflow_iframe_order_transaction
            WHERE order_id = " . (int) $order_id . "
            ORDER BY `time` ASC")->rows;
    }
    
    public function getTransaction($transaction_reference) {
        $result = $this->db->query("
            SELECT *
            FROM " . DB_PREFIX . "paypal_payflow_iframe_order_transaction
            WHERE transaction_reference = '" . $this->db->escape($transaction_reference) . "'")->row;
        
        if ($result) {
            $transaction = $result;
        } else {
            $transaction = false;
        }
        
        return $transaction;
    }
    
    public function call($data) {
        $default_parameters = array(
            'USER' => $this->config->get('pp_payflow_iframe_user'),
            'VENDOR' => $this->config->get('pp_payflow_iframe_vendor'),
            'PWD' => $this->config->get('pp_payflow_iframe_password'),
            'PARTNER' => $this->config->get('pp_payflow_iframe_partner'),
            'BUTTONSOURCE' => 'OpenCart_Cart_PFP',
        );

        $call_parameters = array_merge($data, $default_parameters);
        
        if ($this->config->get('pp_payflow_iframe_test')) {
            $url = 'https://pilot-payflowpro.paypal.com';
        } else {
            $url = 'https://payflowpro.paypal.com';
        }
        
        $query_params = array();
        
        foreach ($call_parameters as $key => $value) {
            $query_params[] = $key . '=' . utf8_decode($value);
        }
        
        $this->log('Call data: ' . implode('&', $query_params));
        
        $curl = curl_init($url);

        curl_setopt($curl, CURLOPT_POST, true);
        curl_setopt($curl, CURLOPT_POSTFIELDS, implode('&', $query_params));
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_HEADER, false);
        curl_setopt($curl, CURLOPT_TIMEOUT, 30);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

        $response = curl_exec($curl);
        
        $this->log('Response data: ' . $response);
        
        $response_params = array();
        parse_str($response, $response_params);
        
        return $response_params;
    }
}
