<?php
session_start();

function dialics_get_pool_number($token){
    $now = time();

    if ($_SESSION['number'] && $_SESSION['expire'] > $now) {
        return $_SESSION['number'];
    } else {
        $params = $_SERVER['QUERY_STRING'];
        $url = 'http://api-dni.dialics.com/api/' . $token . '/number?' . $params;

        $ch = curl_init() ;

        curl_setopt($ch,CURLOPT_URL, $url);
        curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
        curl_setopt($ch,CURLOPT_HEADER,0);
        curl_setopt($ch,CURLOPT_TIMEOUT,30);
        curl_setopt($ch,CURLOPT_FRESH_CONNECT, 1);

        $response = curl_exec($ch);
        curl_close($ch);

        $response = json_decode($response, true);
        //var_dump($response); exit;
        if (isset($response['success']) && $response['success'] == true) {
            $_SESSION['number'] = $response['payload']['number'];
            $_SESSION['expire'] = time() + intval($response['payload']['idle_limit']);

            return $response['payload']['number'];
        }
        return '';
    }
}