<?php
//   This file is a part of CodingTeam. Take a look at <http://codingteam.org>.
//   Copyright © 2007-2014 Erwan Briand <erwan@codingteam.net>
//
//   This program is free software: you can redistribute it and/or modify it
//   under the terms of the GNU Affero General Public License as published by
//   the Free Software Foundation, version 3 only.
//
//   This program 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 Affero General Public
//   License for more details.
//
//   You should have received a copy of the GNU Affero General Public License
//   along with this program. If not, see <http://www.gnu.org/licenses/>.

/**
 * @file
 * This file contains the Notification class
 *
 * Send notifications to users via Jabber or mail.
 */


/**
 * Notification class
 */
class Notifications {
    private $db;

    function __construct ($db)
    {
        $this->ct_db = $db;
    }


    /**
     * Send
     *
     * Send the notification to an user. Subject and notification have to be
     * untranslated.
     * @param $userid
     *   The identifier of the user.
     * @param $subject
     *   An array that contains subject of the notification and args.
     * @param $text
     *   An array that contains text to notify and args.
     * @param $defaultlang (optional)
     *   The default lang to be restored (can be ommited if redirect).
     */
    public function send($userid, $_subject, $_text, $defaultlang=FALSE)
    {
        // Get the user
        $user = getUser($userid, $this->ct_db);
        $type = $user->getNotifs();

        if ($type == 'no')
            return FALSE;

        if (in_array($type, array('xmpp', 'mail')))
        {
            // Get the locale for this language
            $locale = getClass('locales');
            $countries = $locale->getCountries($user->getLang());

            foreach ($countries as $country)
                if ($lcall = $locale->isSupported($user->getLang().'_'.$country))
                    $visitor_locale = $lcall;

            // Change locale settings
            setlocale(LC_ALL, $visitor_locale);

            $subject = i18n($_subject[0], $_subject[1]);
            $text = i18n($_text[0], $_text[1]);

            // Send the notification via Jabber
            if ($type == 'xmpp')
            {
                $jabberid = $user->getJid();

                if (empty($jabberid))
                    return FALSE;

                $this->ct_db->insert('notifications',
                                     array('jabberid'     => $jabberid,
                                           'subject'      => $subject,
                                           'notification' => $text));
            }
            // Send the notification via mail
            elseif ($type == 'mail')
            {
                sendmail($subject, $text, $user->getEmail(), $this->ct_db);
            }

            // Restore local settings
            if ($defaultlang)
                setlocale(LC_ALL, $defaultlang);
        }

        // Return FALSE if we go here
        return FALSE;
    }


    /**
     * Periodic send
     *
     * Send XMPP notifications.
     */
    public function periodic_send()
    {
        $notifs = $this->ct_db->select('notifications', FALSE);
        if (count($notifs) == 0)
            return FALSE;

        $cfg = getClass('config', $this->ct_db);

        require_once(CT_BASEDIR.'/inc/libs/xmpphp/XMPP.php');
        $jab = new XMPPHP_XMPP($cfg->get('jabber', 'server'), 5222, $cfg->get('jabber', 'username'), $cfg->get('jabber', 'password'), 'NOTIFBOT');

        $jab->connect();
        $jab->processUntil('session_start');
        $jab->presence();

        foreach ($notifs as $notif)
        {
            $id = $notif['id'];
            $jabberid = $notif['jabberid'];
            $subject = $notif['subject'];
            $text = $notif['notification'];

            $res = $jab->message($jabberid, $text, 'normal', $subject);
            $this->ct_db->delete('notifications', array('id' => $id));
        }

        $jab->disconnect();
    }
}
?>