<?php

function email_check() {

    global $db, $mailConfig;

    require_once MODELS_PATH . "Options.php";
    require_once MODELS_PATH . "Cache.php";

    $authhost="{pop.gmail.com:995/pop3/ssl/novalidate-cert}";
    $return = imap_open($authhost, $mailConfig['user'], $mailConfig['pass']);

    if(cache_expired(option('lastEmailRefresh'), $expires_time = 3600)) {

        $hostname = '{imap.googlemail.com:993/imap/ssl/novalidate-cert}INBOX';
        $username = $mailConfig['user'];
        $password = $mailConfig['pass'];

        $inbox = imap_open($hostname,$username,$password);

        if($inbox === false) {
            return false;
        }

        $emails = imap_search($inbox,'UNSEEN');

        $emailCount = is_bool($emails) ? 0 : count($emails);

        option('lastEmailCount', $emailCount);
        option('lastEmailRefresh', $db->get_var("SELECT NOW()"));

        return $emailCount;

    } else {

        return option('lastEmailCount');

    }

}