#!/usr/bin/env php
<?php
/*
 * StatusNet - a distributed open-source microblogging tool
 * Copyright (C) 2008, 2009, 2010, 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 = 'i::n::y';
$longoptions = array('id=', 'nickname=', 'yes', 'all', 'dry-run');

$helptext = <<<END_OF_DELETEUSER_HELP
clear_jabber.php [options]
Deletes a user's confirmed Jabber/XMPP address from the database.

  -i --id       ID of the user
  -n --nickname nickname of the user
     --all      all users with confirmed Jabber addresses
     --dry-run  Don't actually delete info.

END_OF_DELETEUSER_HELP;

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

if (have_option('i', 'id')) {
    $id = get_option_value('i', 'id');
    $user = User::getKV('id', $id);
    if (empty($user)) {
        print "Can't find user with ID $id\n";
        exit(1);
    }
} else if (have_option('n', 'nickname')) {
    $nickname = get_option_value('n', 'nickname');
    $user = User::getKV('nickname', $nickname);
    if (empty($user)) {
        print "Can't find user with nickname '$nickname'\n";
        exit(1);
    }
} else if (have_option('all')) {
    $user = new User();
    $user->whereAdd("jabber != ''");
    $user->find(true);
    if ($user->N == 0) {
        print "No users with registered Jabber addresses in database.\n";
        exit(1);
    }
} else {
    print "You must provide either an ID or a nickname.\n";
    print "\n";
    print $helptext;
    exit(1);
}

function clear_jabber($id)
{
    $user = User::getKV('id', $id);
    if ($user && $user->jabber) {
        echo "clearing user $id's user.jabber, was: $user->jabber";
        if (have_option('dry-run')) {
            echo " (SKIPPING)";
        } else {
            $original = clone($user);
            $user->jabber = null;
            try {
                $user->updateWithKeys($original);
            } catch (Exception $e) {
                echo "WARNING: user update failed (setting jabber to null): ".$e->getMessage()."\n";
            }
        }
        echo "\n";
    } else if (!$user) {
        echo "Missing user for $id\n";
    } else {
        echo "Cleared jabber already for $id\n";
    }
}

do {
    clear_jabber($user->id);
} while ($user->fetch());

print "DONE.\n";