<?php

/**
 * PHP Server Monitor
 * Monitor your servers and websites.
 *
 * This file is part of PHP Server Monitor.
 * PHP Server Monitor is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * PHP Server Monitor is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with PHP Server Monitor.  If not, see <http://www.gnu.org/licenses/>.
 *
 * @package     phpservermon
 * @author      Ward Pieters <ward@wardpieters.nl>
 * @copyright   Copyright (c) 2008-2017 Pepijn Over <pep@mailbox.org>
 * @license     http://www.gnu.org/licenses/gpl.txt GNU GPL v3
 * @version     Release: @package_version@
 * @link        http://www.phpservermonitor.org/
 * @since       phpservermon 3.1
 **/

namespace psm\Txtmsg;

class Smsglobal extends Core
{

    /**
     * Send sms using the Smsglobal API
     * @var string $message
     * @var string $this->password
     * @var array $this->recipients
     * @var array $this->originator
     *
     * @var resource $curl
     * @var string $err
     * @var string $recipient
     * @var string $from
     * @var mixed $result
     *
     * @var int $success
     * @var string $error
     *
     * @return bool|string
     */
    
    public function sendSMS($message)
    {
        $error = "";
        $success = 1;
        
        $recipients = join(',', $this->recipients);
        
        $from = substr($this->originator, 0, 15); // Max 15 Characters
        $message = substr(rawurlencode($message), 0, 153);
        
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, 30);
        curl_setopt($curl, CURLOPT_URL, "https://www.smsglobal.com/http-api.php?" . http_build_query(
            array(
                "action" => "sendsms",
                "user" => $this->username,
                "password" => $this->password,
                "from" => $from,
                "to" => $recipients,
                "clientcharset" => "ISO-8859-1",
                "text" => $message,
            )
        ));
        
        $result = curl_exec($curl);
        $httpcode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
        
        $err = curl_errno($curl);
            
        if ($err != 0 || substr($result, 0, 5) != "OK: 0") {
            $success = 0;
            $result = ($result == '') ? 'Wrong input, please check if all values are correct!' : $result;
            $error = "HTTP_code: " . $httpcode . ".\ncURL error (" . $err . "): " .
                curl_strerror($err) . ". \nResult: " . $result;
        }
        curl_close($curl);
        
        if ($success) {
            return 1;
        }
        return $error;
    }
}