#!/usr/bin/env php
<?php
/*
 * StatusNet - the distributed open-source microblogging tool
 * Copyright (C) 2008, 2009, StatusNet, Inc.
 *
 * 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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/>.
 */

define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));

$shortoptions = 'fi::';
$longoptions = array('id::', 'foreground');

$helptext = <<<END_OF_XMPP_HELP
Daemon script for receiving new notices from Jabber users.

    -i --id           Identity (default none)
    -f --foreground   Stay in the foreground (default background)

END_OF_XMPP_HELP;

require_once INSTALLDIR.'/scripts/commandline.inc';

require_once INSTALLDIR . '/lib/jabber.php';

class XMPPDaemon extends SpawningDaemon
{
    function __construct($id=null, $daemonize=true, $threads=1)
    {
        if ($threads != 1) {
            // This should never happen. :)
            throw new Exception("XMPPDaemon can must run single-threaded");
        }
        parent::__construct($id, $daemonize, $threads);
    }

    function runThread()
    {
        common_log(LOG_INFO, 'Waiting to listen to XMPP and queues');

        $master = new XmppMaster($this->get_id());
        $master->init();
        $master->service();

        common_log(LOG_INFO, 'terminating normally');

        return $master->respawn ? self::EXIT_RESTART : self::EXIT_SHUTDOWN;
    }

}

class XmppMaster extends IoMaster
{
    /**
     * Initialize IoManagers for the currently configured site
     * which are appropriate to this instance.
     */
    function initManagers()
    {
        // @fixme right now there's a hack in QueueManager to determine
        // which queues to subscribe to based on the master class.
        $this->instantiate('QueueManager');
        $this->instantiate('XmppManager');
    }
}

// Abort immediately if xmpp is not enabled, otherwise the daemon chews up
// lots of CPU trying to connect to unconfigured servers
if (common_config('xmpp','enabled')==false) {
    print "Aborting daemon - xmpp is disabled\n";
    exit();
}

if (have_option('i', 'id')) {
    $id = get_option_value('i', 'id');
} else if (count($args) > 0) {
    $id = $args[0];
} else {
    $id = null;
}

$foreground = have_option('f', 'foreground');

$daemon = new XMPPDaemon($id, !$foreground);

$daemon->runOnce();