<?php

/*
 * $Id: HostMyBot.php 511 2016-04-12 09:50:12Z denis $
 * PHP class for HostMyBot.com API
 * Usage:
 *
 * require_once('HostMyBot.class.php');
 * $hmb = new HostMyBot($api_key, $secret_key);
 * $hmb->schedule(array(
 *     'url' => 'http://google.com',
 *     'delay' => 60, // seconds
 *     'retries' => 10
 * ));
 *
 * API Key and Secret Key are available here: https://api.hostmybot.com
 */

/******************************************************************************/
class HostMyBot
{
    protected $api_url = 'https://api.hostmybot.com/v1/%s?%s';
    protected $api_key;
    protected $secret_key;

    /**************************************************************************/
    public function __construct($api_key, $secret_key)
    {
        $this->api_key = $api_key;
        $this->secret_key = $secret_key;
    }

    /**************************************************************************/
    public function __call($method, $args)
    {
        $params = $args[0];
        $params['api_key'] = $this->api_key;
        $params['sign'] = $this->sign($params);

        $url = sprintf($this->api_url, $method, http_build_query($params));

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        $res = curl_exec($ch);
        curl_close($ch);

        return $res ? json_decode($res, $is_object = true) : false;
    }

    /**************************************************************************/
    protected function sign($params)
    {
        $str = $this->secret_key;

        ksort($params, SORT_STRING);

        foreach ($params as $key => $val)
        {
            $str .= $key;
            $str .= $val;
        }

        return md5($str);
    }
}