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<?php

/**
 * This file is what shows the listing of topics in a board.
 * It's just one or two functions, but don't under estimate it ;).
 *
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines https://www.simplemachines.org
 * @copyright 2020 Simple Machines and individual contributors
 * @license https://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 2.1 RC2
 */

if (!defined('SMF'))
    die('No direct access...');

/**
 * Show the list of topics in this board, along with any child boards.
 */
function MessageIndex()
{
    global $txt, $scripturl, $board, $modSettings, $context;
    global $options, $settings, $board_info, $user_info, $smcFunc, $sourcedir;

    // If this is a redirection board head off.
    if ($board_info['redirect'])
    {
        $smcFunc['db_query']('', '
            UPDATE {db_prefix}boards
            SET num_posts = num_posts + 1
            WHERE id_board = {int:current_board}',
            array(
                'current_board' => $board,
            )
        );

        redirectexit($board_info['redirect']);
    }

    loadTemplate('MessageIndex');

    if (!$user_info['is_guest'])
    {
        // We can't know they read it if we allow prefetches.
        // But we'll actually mark it read later after we've done everything else.
        if (isset($_SERVER['HTTP_X_MOZ']) && $_SERVER['HTTP_X_MOZ'] == 'prefetch')
        {
            ob_end_clean();
            send_http_status(403, 'Prefetch Forbidden');
            die;
        }
    }

    $context['name'] = $board_info['name'];
    $context['description'] = $board_info['description'];
    if (!empty($board_info['description']))
        $context['meta_description'] = strip_tags($board_info['description']);

    // How many topics do we have in total?
    $board_info['total_topics'] = allowedTo('approve_posts') ? $board_info['num_topics'] + $board_info['unapproved_topics'] : $board_info['num_topics'] + $board_info['unapproved_user_topics'];

    // View all the topics, or just a few?
    $context['topics_per_page'] = empty($modSettings['disableCustomPerPage']) && !empty($options['topics_per_page']) ? $options['topics_per_page'] : $modSettings['defaultMaxTopics'];
    $context['messages_per_page'] = empty($modSettings['disableCustomPerPage']) && !empty($options['messages_per_page']) ? $options['messages_per_page'] : $modSettings['defaultMaxMessages'];
    $context['maxindex'] = isset($_REQUEST['all']) && !empty($modSettings['enableAllMessages']) ? $board_info['total_topics'] : $context['topics_per_page'];

    // Right, let's only index normal stuff!
    if (count($_GET) > 1)
    {
        $session_name = session_name();
        foreach ($_GET as $k => $v)
        {
            if (!in_array($k, array('board', 'start', $session_name)))
                $context['robot_no_index'] = true;
        }
    }
    if (!empty($_REQUEST['start']) && (!is_numeric($_REQUEST['start']) || $_REQUEST['start'] % $context['messages_per_page'] != 0))
        $context['robot_no_index'] = true;

    // If we can view unapproved messages and there are some build up a list.
    if (allowedTo('approve_posts') && ($board_info['unapproved_topics'] || $board_info['unapproved_posts']))
    {
        $untopics = $board_info['unapproved_topics'] ? '<a href="' . $scripturl . '?action=moderate;area=postmod;sa=topics;brd=' . $board . '">' . $board_info['unapproved_topics'] . '</a>' : 0;
        $unposts = $board_info['unapproved_posts'] ? '<a href="' . $scripturl . '?action=moderate;area=postmod;sa=posts;brd=' . $board . '">' . ($board_info['unapproved_posts'] - $board_info['unapproved_topics']) . '</a>' : 0;
        $context['unapproved_posts_message'] = sprintf($txt['there_are_unapproved_topics'], $untopics, $unposts, $scripturl . '?action=moderate;area=postmod;sa=' . ($board_info['unapproved_topics'] ? 'topics' : 'posts') . ';brd=' . $board);
    }

    // Default sort methods.
    $sort_methods = array(
        'subject' => 'mf.subject',
        'starter' => 'COALESCE(memf.real_name, mf.poster_name)',
        'last_poster' => 'COALESCE(meml.real_name, ml.poster_name)',
        'replies' => 't.num_replies',
        'views' => 't.num_views',
        'first_post' => 't.id_topic',
        'last_post' => 't.id_last_msg'
    );

    // Default sort methods tables.
    $sort_methods_table = array(
        'subject' => 'JOIN {db_prefix}messages mf ON (mf.id_msg = t.id_first_msg)',
        'starter' => 'JOIN {db_prefix}messages mf ON (mf.id_msg = t.id_first_msg)
            LEFT JOIN {db_prefix}members AS memf ON (memf.id_member = mf.id_member)',
        'last_poster' => 'JOIN {db_prefix}messages AS ml ON (ml.id_msg = t.id_last_msg)
            LEFT JOIN {db_prefix}members AS meml ON (meml.id_member = ml.id_member)',
        'replies' => '',
        'views' => '',
        'first_post' => '',
        'last_post' => ''
    );

    // Bring in any changes we want to make before the query.
    call_integration_hook('integrate_pre_messageindex', array(&$sort_methods, &$sort_methods_table));

    // We only know these.
    if (isset($_REQUEST['sort']) && !in_array($_REQUEST['sort'], array_keys($sort_methods)))
        $_REQUEST['sort'] = 'last_post';

    // Make sure the starting place makes sense and construct the page index.
    if (isset($_REQUEST['sort']))
        $context['page_index'] = constructPageIndex($scripturl . '?board=' . $board . '.%1$d;sort=' . $_REQUEST['sort'] . (isset($_REQUEST['desc']) ? ';desc' : ''), $_REQUEST['start'], $board_info['total_topics'], $context['maxindex'], true);
    else
        $context['page_index'] = constructPageIndex($scripturl . '?board=' . $board . '.%1$d', $_REQUEST['start'], $board_info['total_topics'], $context['maxindex'], true);
    $context['start'] = &$_REQUEST['start'];

    // Set a canonical URL for this page.
    $context['canonical_url'] = $scripturl . '?board=' . $board . '.' . $context['start'];

    $can_show_all = !empty($modSettings['enableAllMessages']) && $context['maxindex'] > $modSettings['enableAllMessages'];

    if (!($can_show_all && isset($_REQUEST['all'])))
    {
        $context['links'] = array(
            'first' => $_REQUEST['start'] >= $context['topics_per_page'] ? $scripturl . '?board=' . $board . '.0' : '',
            'prev' => $_REQUEST['start'] >= $context['topics_per_page'] ? $scripturl . '?board=' . $board . '.' . ($_REQUEST['start'] - $context['topics_per_page']) : '',
            'next' => $_REQUEST['start'] + $context['topics_per_page'] < $board_info['total_topics'] ? $scripturl . '?board=' . $board . '.' . ($_REQUEST['start'] + $context['topics_per_page']) : '',
            'last' => $_REQUEST['start'] + $context['topics_per_page'] < $board_info['total_topics'] ? $scripturl . '?board=' . $board . '.' . (floor(($board_info['total_topics'] - 1) / $context['topics_per_page']) * $context['topics_per_page']) : '',
            'up' => $board_info['parent'] == 0 ? $scripturl . '?' : $scripturl . '?board=' . $board_info['parent'] . '.0'
        );
    }

    $context['page_info'] = array(
        'current_page' => $_REQUEST['start'] / $context['topics_per_page'] + 1,
        'num_pages' => floor(($board_info['total_topics'] - 1) / $context['topics_per_page']) + 1
    );

    if (isset($_REQUEST['all']) && $can_show_all)
    {
        $context['maxindex'] = $modSettings['enableAllMessages'];
        $_REQUEST['start'] = 0;
    }

    // Build a list of the board's moderators.
    $context['moderators'] = &$board_info['moderators'];
    $context['moderator_groups'] = &$board_info['moderator_groups'];
    $context['link_moderators'] = array();
    if (!empty($board_info['moderators']))
    {
        foreach ($board_info['moderators'] as $mod)
            $context['link_moderators'][] = '<a href="' . $scripturl . '?action=profile;u=' . $mod['id'] . '" title="' . $txt['board_moderator'] . '">' . $mod['name'] . '</a>';
    }
    if (!empty($board_info['moderator_groups']))
    {
        // By default just tack the moderator groups onto the end of the members
        foreach ($board_info['moderator_groups'] as $mod_group)
            $context['link_moderators'][] = '<a href="' . $scripturl . '?action=groups;sa=members;group=' . $mod_group['id'] . '" title="' . $txt['board_moderator'] . '">' . $mod_group['name'] . '</a>';
    }

    // Now we tack the info onto the end of the linktree
    if (!empty($context['link_moderators']))
    {
        $context['linktree'][count($context['linktree']) - 1]['extra_after'] = '<span class="board_moderators">(' . (count($context['link_moderators']) == 1 ? $txt['moderator'] : $txt['moderators']) . ': ' . implode(', ', $context['link_moderators']) . ')</span>';
    }

    // 'Print' the header and board info.
    $context['page_title'] = strip_tags($board_info['name']);

    // Set the variables up for the template.
    $context['can_mark_notify'] = !$user_info['is_guest'];
    $context['can_post_new'] = allowedTo('post_new') || ($modSettings['postmod_active'] && allowedTo('post_unapproved_topics'));
    $context['can_post_poll'] = $modSettings['pollMode'] == '1' && allowedTo('poll_post') && $context['can_post_new'];
    $context['can_moderate_forum'] = allowedTo('moderate_forum');
    $context['can_approve_posts'] = allowedTo('approve_posts');

    require_once($sourcedir . '/Subs-BoardIndex.php');
    $boardIndexOptions = array(
        'include_categories' => false,
        'base_level' => $board_info['child_level'] + 1,
        'parent_id' => $board_info['id'],
        'set_latest_post' => false,
        'countChildPosts' => !empty($modSettings['countChildPosts']),
    );
    $context['boards'] = getBoardIndex($boardIndexOptions);

    // Nosey, nosey - who's viewing this topic?
    if (!empty($settings['display_who_viewing']))
    {
        $context['view_members'] = array();
        $context['view_members_list'] = array();
        $context['view_num_hidden'] = 0;

        $request = $smcFunc['db_query']('', '
            SELECT
                lo.id_member, lo.log_time, mem.real_name, mem.member_name, mem.show_online,
                mg.online_color, mg.id_group, mg.group_name
            FROM {db_prefix}log_online AS lo
                LEFT JOIN {db_prefix}members AS mem ON (mem.id_member = lo.id_member)
                LEFT JOIN {db_prefix}membergroups AS mg ON (mg.id_group = CASE WHEN mem.id_group = {int:reg_member_group} THEN mem.id_post_group ELSE mem.id_group END)
            WHERE INSTR(lo.url, {string:in_url_string}) > 0 OR lo.session = {string:session}',
            array(
                'reg_member_group' => 0,
                'in_url_string' => '"board":' . $board,
                'session' => $user_info['is_guest'] ? 'ip' . $user_info['ip'] : session_id(),
            )
        );
        while ($row = $smcFunc['db_fetch_assoc']($request))
        {
            if (empty($row['id_member']))
                continue;

            if (!empty($row['online_color']))
                $link = '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '" style="color: ' . $row['online_color'] . ';">' . $row['real_name'] . '</a>';
            else
                $link = '<a href="' . $scripturl . '?action=profile;u=' . $row['id_member'] . '">' . $row['real_name'] . '</a>';

            $is_buddy = in_array($row['id_member'], $user_info['buddies']);
            if ($is_buddy)
                $link = '<strong>' . $link . '</strong>';

            if (!empty($row['show_online']) || allowedTo('moderate_forum'))
                $context['view_members_list'][$row['log_time'] . $row['member_name']] = empty($row['show_online']) ? '<em>' . $link . '</em>' : $link;
            // @todo why are we filling this array of data that are just counted (twice) and discarded? ???
            $context['view_members'][$row['log_time'] . $row['member_name']] = array(
                'id' => $row['id_member'],
                'username' => $row['member_name'],
                'name' => $row['real_name'],
                'group' => $row['id_group'],
                'href' => $scripturl . '?action=profile;u=' . $row['id_member'],
                'link' => $link,
                'is_buddy' => $is_buddy,
                'hidden' => empty($row['show_online']),
            );

            if (empty($row['show_online']))
                $context['view_num_hidden']++;
        }
        $context['view_num_guests'] = $smcFunc['db_num_rows']($request) - count($context['view_members']);
        $smcFunc['db_free_result']($request);

        // Put them in "last clicked" order.
        krsort($context['view_members_list']);
        krsort($context['view_members']);
    }

    // They didn't pick one, default to by last post descending.
    if (!isset($_REQUEST['sort']) || !isset($sort_methods[$_REQUEST['sort']]))
    {
        $context['sort_by'] = 'last_post';
        $_REQUEST['sort'] = 'id_last_msg';
        $ascending = isset($_REQUEST['asc']);
    }
    // Otherwise default to ascending.
    else
    {
        $context['sort_by'] = $_REQUEST['sort'];
        $_REQUEST['sort'] = $sort_methods[$_REQUEST['sort']];
        $ascending = !isset($_REQUEST['desc']);
    }

    $context['sort_direction'] = $ascending ? 'up' : 'down';
    $txt['starter'] = $txt['started_by'];

    foreach ($sort_methods as $key => $val)
        $context['topics_headers'][$key] = '<a href="' . $scripturl . '?board=' . $context['current_board'] . '.' . $context['start'] . ';sort=' . $key . ($context['sort_by'] == $key && $context['sort_direction'] == 'up' ? ';desc' : '') . '">' . $txt[$key] . ($context['sort_by'] == $key ? '<span class="main_icons sort_' . $context['sort_direction'] . '"></span>' : '') . '</a>';

    // Calculate the fastest way to get the topics.
    $start = (int) $_REQUEST['start'];
    if ($start > ($board_info['total_topics'] - 1) / 2)
    {
        $ascending = !$ascending;
        $fake_ascending = true;
        $context['maxindex'] = $board_info['total_topics'] < $start + $context['maxindex'] + 1 ? $board_info['total_topics'] - $start : $context['maxindex'];
        $start = $board_info['total_topics'] < $start + $context['maxindex'] + 1 ? 0 : $board_info['total_topics'] - $start - $context['maxindex'];
    }
    else
        $fake_ascending = false;

    // Setup the default topic icons...
    $context['icon_sources'] = array();
    foreach ($context['stable_icons'] as $icon)
        $context['icon_sources'][$icon] = 'images_url';

    $topic_ids = array();
    $context['topics'] = array();

    // Grab the appropriate topic information...
    // For search engine effectiveness we'll link guests differently.
    $context['pageindex_multiplier'] = empty($modSettings['disableCustomPerPage']) && !empty($options['messages_per_page']) ? $options['messages_per_page'] : $modSettings['defaultMaxMessages'];

    $message_index_parameters = array(
        'current_board' => $board,
        'current_member' => $user_info['id'],
        'topic_list' => $topic_ids,
        'is_approved' => 1,
        'find_set_topics' => implode(',', $topic_ids),
        'start' => $start,
        'maxindex' => $context['maxindex'],
    );

    $message_index_selects = array();
    $message_index_tables = array();
    $message_index_wheres = array();
    $message_index_topic_wheres = array();

    call_integration_hook('integrate_message_index', array(&$message_index_selects, &$message_index_tables, &$message_index_parameters, &$message_index_wheres, &$topic_ids, &$message_index_topic_wheres));

    if (!empty($modSettings['enableParticipation']) && !$user_info['is_guest'])
        $enableParticipation = true;
    else
        $enableParticipation = false;

    $sort_table = '
        SELECT t.id_topic, t.id_first_msg, t.id_last_msg' . (!empty($message_index_selects) ? (', ' . implode(', ', $message_index_selects)) : '') . '
        FROM {db_prefix}topics t
        ' . (empty($sort_methods_table[$context['sort_by']]) ? '' : $sort_methods_table[$context['sort_by']]) . '
        ' . (!empty($message_index_tables) ? implode("\n\t\t\t\t", $message_index_tables) : '') . '
        WHERE t.id_board = {int:current_board} '
            . (!$modSettings['postmod_active'] || $context['can_approve_posts'] ? '' : '
            AND (t.approved = {int:is_approved}' . ($user_info['is_guest'] ? '' : ' OR t.id_member_started = {int:current_member}') . ')') . (!empty($message_index_topic_wheres) ? ' 
            AND ' . implode("\n\t\t\t\tAND ", $message_index_topic_wheres) : ''). '
        ORDER BY is_sticky' . ($fake_ascending ? '' : ' DESC') . ', ' . $_REQUEST['sort'] . ($ascending ? '' : ' DESC') . '
        LIMIT {int:maxindex}
            OFFSET {int:start} ';

    $result = $smcFunc['db_query']('substring', '
        SELECT
            t.id_topic, t.num_replies, t.locked, t.num_views, t.is_sticky, t.id_poll, t.id_previous_board,
            ' . ($user_info['is_guest'] ? '0' : 'COALESCE(lt.id_msg, COALESCE(lmr.id_msg, -1)) + 1') . ' AS new_from,
            ' . ($enableParticipation ? ' COALESCE(( SELECT 1 FROM {db_prefix}messages AS parti WHERE t.id_topic = parti.id_topic and parti.id_member = {int:current_member} LIMIT 1) , 0) as is_posted_in,
            ' : '') . '
            t.id_last_msg, t.approved, t.unapproved_posts, ml.poster_time AS last_poster_time, t.id_redirect_topic,
            ml.id_msg_modified, ml.subject AS last_subject, ml.icon AS last_icon,
            ml.poster_name AS last_member_name, ml.id_member AS last_id_member,' . (!empty($settings['avatars_on_indexes']) ? ' meml.avatar, meml.email_address, memf.avatar AS first_member_avatar, memf.email_address AS first_member_mail, COALESCE(af.id_attach, 0) AS first_member_id_attach, af.filename AS first_member_filename, af.attachment_type AS first_member_attach_type, COALESCE(al.id_attach, 0) AS last_member_id_attach, al.filename AS last_member_filename, al.attachment_type AS last_member_attach_type,' : '') . '
            COALESCE(meml.real_name, ml.poster_name) AS last_display_name, t.id_first_msg,
            mf.poster_time AS first_poster_time, mf.subject AS first_subject, mf.icon AS first_icon,
            mf.poster_name AS first_member_name, mf.id_member AS first_id_member,
            COALESCE(memf.real_name, mf.poster_name) AS first_display_name, ' . (!empty($modSettings['preview_characters']) ? '
            SUBSTRING(ml.body, 1, ' . ($modSettings['preview_characters'] + 256) . ') AS last_body,
            SUBSTRING(mf.body, 1, ' . ($modSettings['preview_characters'] + 256) . ') AS first_body,' : '') . 'ml.smileys_enabled AS last_smileys, mf.smileys_enabled AS first_smileys
            ' . (!empty($message_index_selects) ? (', ' . implode(', ', $message_index_selects)) : '') . '
        FROM (' . $sort_table . ') as st
            JOIN {db_prefix}topics AS t ON (st.id_topic = t.id_topic)
            JOIN {db_prefix}messages AS ml ON (ml.id_msg = st.id_last_msg)
            JOIN {db_prefix}messages AS mf ON (mf.id_msg = st.id_first_msg)
            LEFT JOIN {db_prefix}members AS meml ON (meml.id_member = ml.id_member)
            LEFT JOIN {db_prefix}members AS memf ON (memf.id_member = mf.id_member)' . (!empty($settings['avatars_on_indexes']) ? '
            LEFT JOIN {db_prefix}attachments AS af ON (af.id_member = memf.id_member)
            LEFT JOIN {db_prefix}attachments AS al ON (al.id_member = meml.id_member)' : '') . '' . ($user_info['is_guest'] ? '' : '
            LEFT JOIN {db_prefix}log_topics AS lt ON (lt.id_topic = t.id_topic AND lt.id_member = {int:current_member})
            LEFT JOIN {db_prefix}log_mark_read AS lmr ON (lmr.id_board = {int:current_board} AND lmr.id_member = {int:current_member})') . '
            ' . (!empty($message_index_tables) ? implode("\n\t\t\t\t", $message_index_tables) : '') . '
            ' . (!empty($message_index_wheres) ? ' WHERE ' . implode("\n\t\t\t\tAND ", $message_index_wheres) : '') . '
        ORDER BY is_sticky' . ($fake_ascending ? '' : ' DESC') . ', ' . $_REQUEST['sort'] . ($ascending ? '' : ' DESC'),
        $message_index_parameters
    );

    // Begin 'printing' the message index for current board.
    while ($row = $smcFunc['db_fetch_assoc']($result))
    {
        if ($row['id_poll'] > 0 && $modSettings['pollMode'] == '0')
            continue;

        $topic_ids[] = $row['id_topic'];

        // Reference the main color class.
        $colorClass = 'windowbg';

        // Does the theme support message previews?
        if (!empty($modSettings['preview_characters']))
        {
            // Limit them to $modSettings['preview_characters'] characters
            $row['first_body'] = strip_tags(strtr(parse_bbc($row['first_body'], $row['first_smileys'], $row['id_first_msg']), array('<br>' => '&#10;')));
            if ($smcFunc['strlen']($row['first_body']) > $modSettings['preview_characters'])
                $row['first_body'] = $smcFunc['substr']($row['first_body'], 0, $modSettings['preview_characters']) . '...';

            // Censor the subject and message preview.
            censorText($row['first_subject']);
            censorText($row['first_body']);

            // Don't censor them twice!
            if ($row['id_first_msg'] == $row['id_last_msg'])
            {
                $row['last_subject'] = $row['first_subject'];
                $row['last_body'] = $row['first_body'];
            }
            else
            {
                $row['last_body'] = strip_tags(strtr(parse_bbc($row['last_body'], $row['last_smileys'], $row['id_last_msg']), array('<br>' => '&#10;')));
                if ($smcFunc['strlen']($row['last_body']) > $modSettings['preview_characters'])
                    $row['last_body'] = $smcFunc['substr']($row['last_body'], 0, $modSettings['preview_characters']) . '...';

                censorText($row['last_subject']);
                censorText($row['last_body']);
            }
        }
        else
        {
            $row['first_body'] = '';
            $row['last_body'] = '';
            censorText($row['first_subject']);

            if ($row['id_first_msg'] == $row['id_last_msg'])
                $row['last_subject'] = $row['first_subject'];
            else
                censorText($row['last_subject']);
        }

        // Decide how many pages the topic should have.
        if ($row['num_replies'] + 1 > $context['messages_per_page'])
        {
            // We can't pass start by reference.
            $start = -1;
            $pages = constructPageIndex($scripturl . '?topic=' . $row['id_topic'] . '.%1$d', $start, $row['num_replies'] + 1, $context['messages_per_page'], true, false);

            // If we can use all, show all.
            if (!empty($modSettings['enableAllMessages']) && $row['num_replies'] + 1 < $modSettings['enableAllMessages'])
                $pages .= ' &nbsp;<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.0;all">' . $txt['all'] . '</a>';
        }
        else
            $pages = '';

        // We need to check the topic icons exist...
        if (!empty($modSettings['messageIconChecks_enable']))
        {
            if (!isset($context['icon_sources'][$row['first_icon']]))
                $context['icon_sources'][$row['first_icon']] = file_exists($settings['theme_dir'] . '/images/post/' . $row['first_icon'] . '.png') ? 'images_url' : 'default_images_url';
            if (!isset($context['icon_sources'][$row['last_icon']]))
                $context['icon_sources'][$row['last_icon']] = file_exists($settings['theme_dir'] . '/images/post/' . $row['last_icon'] . '.png') ? 'images_url' : 'default_images_url';
        }
        else
        {
            if (!isset($context['icon_sources'][$row['first_icon']]))
                $context['icon_sources'][$row['first_icon']] = 'images_url';
            if (!isset($context['icon_sources'][$row['last_icon']]))
                $context['icon_sources'][$row['last_icon']] = 'images_url';
        }

        if (!empty($board_info['recycle']))
            $row['first_icon'] = 'recycled';

        // Is this topic pending approval, or does it have any posts pending approval?
        if ($context['can_approve_posts'] && $row['unapproved_posts'])
            $colorClass .= (!$row['approved'] ? ' approvetopic' : ' approvepost');

        // Sticky topics should get a different color, too.
        if ($row['is_sticky'])
            $colorClass .= ' sticky';

        // Locked topics get special treatment as well.
        if ($row['locked'])
            $colorClass .= ' locked';

        // 'Print' the topic info.
        $context['topics'][$row['id_topic']] = array_merge($row, array(
            'id' => $row['id_topic'],
            'first_post' => array(
                'id' => $row['id_first_msg'],
                'member' => array(
                    'username' => $row['first_member_name'],
                    'name' => $row['first_display_name'],
                    'id' => $row['first_id_member'],
                    'href' => !empty($row['first_id_member']) ? $scripturl . '?action=profile;u=' . $row['first_id_member'] : '',
                    'link' => !empty($row['first_id_member']) ? '<a href="' . $scripturl . '?action=profile;u=' . $row['first_id_member'] . '" title="' . $txt['profile_of'] . ' ' . $row['first_display_name'] . '" class="preview">' . $row['first_display_name'] . '</a>' : $row['first_display_name']
                ),
                'time' => timeformat($row['first_poster_time']),
                'timestamp' => forum_time(true, $row['first_poster_time']),
                'subject' => $row['first_subject'],
                'preview' => $row['first_body'],
                'icon' => $row['first_icon'],
                'icon_url' => $settings[$context['icon_sources'][$row['first_icon']]] . '/post/' . $row['first_icon'] . '.png',
                'href' => $scripturl . '?topic=' . $row['id_topic'] . '.0',
                'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . '.0">' . $row['first_subject'] . '</a>',
            ),
            'last_post' => array(
                'id' => $row['id_last_msg'],
                'member' => array(
                    'username' => $row['last_member_name'],
                    'name' => $row['last_display_name'],
                    'id' => $row['last_id_member'],
                    'href' => !empty($row['last_id_member']) ? $scripturl . '?action=profile;u=' . $row['last_id_member'] : '',
                    'link' => !empty($row['last_id_member']) ? '<a href="' . $scripturl . '?action=profile;u=' . $row['last_id_member'] . '">' . $row['last_display_name'] . '</a>' : $row['last_display_name']
                ),
                'time' => timeformat($row['last_poster_time']),
                'timestamp' => forum_time(true, $row['last_poster_time']),
                'subject' => $row['last_subject'],
                'preview' => $row['last_body'],
                'icon' => $row['last_icon'],
                'icon_url' => $settings[$context['icon_sources'][$row['last_icon']]] . '/post/' . $row['last_icon'] . '.png',
                'href' => $scripturl . '?topic=' . $row['id_topic'] . ($user_info['is_guest'] ? ('.' . (!empty($options['view_newest_first']) ? 0 : ((int) (($row['num_replies']) / $context['pageindex_multiplier'])) * $context['pageindex_multiplier']) . '#msg' . $row['id_last_msg']) : (($row['num_replies'] == 0 ? '.0' : '.msg' . $row['id_last_msg']) . '#new')),
                'link' => '<a href="' . $scripturl . '?topic=' . $row['id_topic'] . ($user_info['is_guest'] ? ('.' . (!empty($options['view_newest_first']) ? 0 : ((int) (($row['num_replies']) / $context['pageindex_multiplier'])) * $context['pageindex_multiplier']) . '#msg' . $row['id_last_msg']) : (($row['num_replies'] == 0 ? '.0' : '.msg' . $row['id_last_msg']) . '#new')) . '" ' . ($row['num_replies'] == 0 ? '' : 'rel="nofollow"') . '>' . $row['last_subject'] . '</a>'
            ),
            'is_sticky' => !empty($row['is_sticky']),
            'is_locked' => !empty($row['locked']),
            'is_redirect' => !empty($row['id_redirect_topic']),
            'is_poll' => $modSettings['pollMode'] == '1' && $row['id_poll'] > 0,
            'is_posted_in' => ($enableParticipation ? $row['is_posted_in'] : false),
            'is_watched' => false,
            'icon' => $row['first_icon'],
            'icon_url' => $settings[$context['icon_sources'][$row['first_icon']]] . '/post/' . $row['first_icon'] . '.png',
            'subject' => $row['first_subject'],
            'new' => $row['new_from'] <= $row['id_msg_modified'],
            'new_from' => $row['new_from'],
            'newtime' => $row['new_from'],
            'new_href' => $scripturl . '?topic=' . $row['id_topic'] . '.msg' . $row['new_from'] . '#new',
            'pages' => $pages,
            'replies' => comma_format($row['num_replies']),
            'views' => comma_format($row['num_views']),
            'approved' => $row['approved'],
            'unapproved_posts' => $row['unapproved_posts'],
            'css_class' => $colorClass,
        ));
        if (!empty($settings['avatars_on_indexes']))
        {
            // Last post member avatar
            $context['topics'][$row['id_topic']]['last_post']['member']['avatar'] = set_avatar_data(array(
                'avatar' => $row['avatar'],
                'email' => $row['email_address'],
                'filename' => !empty($row['last_member_filename']) ? $row['last_member_filename'] : '',
            ));

            // First post member avatar
            $context['topics'][$row['id_topic']]['first_post']['member']['avatar'] = set_avatar_data(array(
                'avatar' => $row['first_member_avatar'],
                'email' => $row['first_member_mail'],
                'filename' => !empty($row['first_member_filename']) ? $row['first_member_filename'] : '',
            ));
        }
    }
    $smcFunc['db_free_result']($result);

    // Fix the sequence of topics if they were retrieved in the wrong order. (for speed reasons...)
    if ($fake_ascending)
        $context['topics'] = array_reverse($context['topics'], true);

    $context['jump_to'] = array(
        'label' => addslashes(un_htmlspecialchars($txt['jump_to'])),
        'board_name' => $smcFunc['htmlspecialchars'](strtr(strip_tags($board_info['name']), array('&amp;' => '&'))),
        'child_level' => $board_info['child_level'],
    );

    // Is Quick Moderation active/needed?
    if (!empty($options['display_quick_mod']) && !empty($context['topics']))
    {
        $context['can_markread'] = $context['user']['is_logged'];
        $context['can_lock'] = allowedTo('lock_any');
        $context['can_sticky'] = allowedTo('make_sticky');
        $context['can_move'] = allowedTo('move_any');
        $context['can_remove'] = allowedTo('remove_any');
        $context['can_merge'] = allowedTo('merge_any');
        // Ignore approving own topics as it's unlikely to come up...
        $context['can_approve'] = $modSettings['postmod_active'] && allowedTo('approve_posts') && !empty($board_info['unapproved_topics']);
        // Can we restore topics?
        $context['can_restore'] = allowedTo('move_any') && !empty($board_info['recycle']);

        if ($user_info['is_admin'] || $modSettings['topic_move_any'])
            $context['can_move_any'] = true;
        else
        {
            // We'll use this in a minute
            $boards_allowed = boardsAllowedTo('post_new');

            // How many boards can you do this on besides this one?
            $context['can_move_any'] = count($boards_allowed) > 1;
        }

        // Set permissions for all the topics.
        foreach ($context['topics'] as $t => $topic)
        {
            $started = $topic['first_post']['member']['id'] == $user_info['id'];
            $context['topics'][$t]['quick_mod'] = array(
                'lock' => allowedTo('lock_any') || ($started && allowedTo('lock_own')),
                'sticky' => allowedTo('make_sticky'),
                'move' => (allowedTo('move_any') || ($started && allowedTo('move_own')) && $context['can_move_any']),
                'modify' => allowedTo('modify_any') || ($started && allowedTo('modify_own')),
                'remove' => allowedTo('remove_any') || ($started && allowedTo('remove_own')),
                'approve' => $context['can_approve'] && $topic['unapproved_posts']
            );
            $context['can_lock'] |= ($started && allowedTo('lock_own'));
            $context['can_move'] |= ($started && allowedTo('move_own') && $context['can_move_any']);
            $context['can_remove'] |= ($started && allowedTo('remove_own'));
        }

        // Can we use quick moderation checkboxes?
        if ($options['display_quick_mod'] == 1)
            $context['can_quick_mod'] = $context['user']['is_logged'] || $context['can_approve'] || $context['can_remove'] || $context['can_lock'] || $context['can_sticky'] || $context['can_move'] || $context['can_merge'] || $context['can_restore'];
        // Or the icons?
        else
            $context['can_quick_mod'] = $context['can_remove'] || $context['can_lock'] || $context['can_sticky'] || $context['can_move'];
    }

    if (!empty($context['can_quick_mod']) && $options['display_quick_mod'] == 1)
    {
        $context['qmod_actions'] = array('approve', 'remove', 'lock', 'sticky', 'move', 'merge', 'restore', 'markread');
        call_integration_hook('integrate_quick_mod_actions');
    }

    // Mark current and parent boards as seen.
    if (!$user_info['is_guest'])
    {
        $smcFunc['db_insert']('replace',
            '{db_prefix}log_boards',
            array('id_msg' => 'int', 'id_member' => 'int', 'id_board' => 'int'),
            array($modSettings['maxMsgID'], $user_info['id'], $board),
            array('id_member', 'id_board')
        );

        if (!empty($board_info['parent_boards']))
        {
            $smcFunc['db_query']('', '
                UPDATE {db_prefix}log_boards
                SET id_msg = {int:id_msg}
                WHERE id_member = {int:current_member}
                    AND id_board IN ({array_int:board_list})',
                array(
                    'current_member' => $user_info['id'],
                    'board_list' => array_keys($board_info['parent_boards']),
                    'id_msg' => $modSettings['maxMsgID'],
                )
            );

            // We've seen all these boards now!
            foreach ($board_info['parent_boards'] as $k => $dummy)
                if (isset($_SESSION['topicseen_cache'][$k]))
                    unset($_SESSION['topicseen_cache'][$k]);
        }

        if (isset($_SESSION['topicseen_cache'][$board]))
            unset($_SESSION['topicseen_cache'][$board]);

        $request = $smcFunc['db_query']('', '
            SELECT id_topic, id_board, sent
            FROM {db_prefix}log_notify
            WHERE id_member = {int:current_member}
                AND (' . (!empty($context['topics']) ? 'id_topic IN ({array_int:topics}) OR ' : '') . 'id_board = {int:current_board})',
            array(
                'current_board' => $board,
                'topics' => !empty($context['topics']) ? array_keys($context['topics']) : array(),
                'current_member' => $user_info['id'],
            )
        );
        $context['is_marked_notify'] = false; // this is for the *board* only
        while ($row = $smcFunc['db_fetch_assoc']($request))
        {
            if (!empty($row['id_board']))
            {
                $context['is_marked_notify'] = true;
                $board_sent = $row['sent'];
            }
            if (!empty($row['id_topic']))
                $context['topics'][$row['id_topic']]['is_watched'] = true;
        }
        $smcFunc['db_free_result']($request);

        if ($context['is_marked_notify'] && !empty($board_sent))
        {
            $smcFunc['db_query']('', '
                UPDATE {db_prefix}log_notify
                SET sent = {int:is_sent}
                WHERE id_member = {int:current_member}
                    AND id_board = {int:current_board}',
                array(
                    'current_board' => $board,
                    'current_member' => $user_info['id'],
                    'is_sent' => 0,
                )
            );
        }

        require_once($sourcedir . '/Subs-Notify.php');
        $pref = getNotifyPrefs($user_info['id'], array('board_notify', 'board_notify_' . $board), true);
        $pref = !empty($pref[$user_info['id']]) ? $pref[$user_info['id']] : array();
        $pref = isset($pref['board_notify_' . $board]) ? $pref['board_notify_' . $board] : (!empty($pref['board_notify']) ? $pref['board_notify'] : 0);
        $context['board_notification_mode'] = !$context['is_marked_notify'] ? 1 : ($pref & 0x02 ? 3 : ($pref & 0x01 ? 2 : 1));
    }
    else
    {
        $context['is_marked_notify'] = false;
        $context['board_notification_mode'] = 1;
    }

    // If there are children, but no topics and no ability to post topics...
    $context['no_topic_listing'] = !empty($context['boards']) && empty($context['topics']) && !$context['can_post_new'];

    // Show a message in case a recently posted message became unapproved.
    $context['becomesUnapproved'] = !empty($_SESSION['becomesUnapproved']);
    unset($_SESSION['becomesUnapproved']);

    // Build the message index button array.
    $context['normal_buttons'] = array();

    if ($context['can_post_new'])
        $context['normal_buttons']['new_topic'] = array('text' => 'new_topic', 'image' => 'new_topic.png', 'lang' => true, 'url' => $scripturl . '?action=post;board=' . $context['current_board'] . '.0', 'active' => true);

    if ($context['can_post_poll'])
        $context['normal_buttons']['post_poll'] = array('text' => 'new_poll', 'image' => 'new_poll.png', 'lang' => true, 'url' => $scripturl . '?action=post;board=' . $context['current_board'] . '.0;poll');

    if ($context['user']['is_logged'])
        $context['normal_buttons']['markread'] = array('text' => 'mark_read_short', 'image' => 'markread.png', 'lang' => true, 'custom' => 'data-confirm="' . $txt['are_sure_mark_read'] . '"', 'class' => 'you_sure', 'url' => $scripturl . '?action=markasread;sa=board;board=' . $context['current_board'] . '.0;' . $context['session_var'] . '=' . $context['session_id']);

    if ($context['can_mark_notify'])
        $context['normal_buttons']['notify'] = array(
            'lang' => true,
            'text' => 'notify_board_' . $context['board_notification_mode'],
            'sub_buttons' => array(
                array(
                    'text' => 'notify_board_1',
                    'url' => $scripturl . '?action=notifyboard;board=' . $board . ';mode=1;' . $context['session_var'] . '=' . $context['session_id'],
                ),
                array(
                    'text' => 'notify_board_2',
                    'url' => $scripturl . '?action=notifyboard;board=' . $board . ';mode=2;' . $context['session_var'] . '=' . $context['session_id'],
                ),
                array(
                    'text' => 'notify_board_3',
                    'url' => $scripturl . '?action=notifyboard;board=' . $board . ';mode=3;' . $context['session_var'] . '=' . $context['session_id'],
                ),
            ),
        );

    // Javascript for inline editing.
    loadJavaScriptFile('topic.js', array('defer' => false, 'minimize' => true), 'smf_topic');

    // Allow adding new buttons easily.
    // Note: $context['normal_buttons'] is added for backward compatibility with 2.0, but is deprecated and should not be used
    call_integration_hook('integrate_messageindex_buttons', array(&$context['normal_buttons']));
}

/**
 * Handles moderation from the message index.
 *
 * @todo refactor this...
 */
function QuickModeration()
{
    global $sourcedir, $board, $user_info, $modSettings, $smcFunc, $context;

    // Check the session = get or post.
    checkSession('request');

    // Lets go straight to the restore area.
    if (isset($_REQUEST['qaction']) && $_REQUEST['qaction'] == 'restore' && !empty($_REQUEST['topics']))
        redirectexit('action=restoretopic;topics=' . implode(',', $_REQUEST['topics']) . ';' . $context['session_var'] . '=' . $context['session_id']);

    if (isset($_SESSION['topicseen_cache']))
        $_SESSION['topicseen_cache'] = array();

    // This is going to be needed to send off the notifications and for updateLastMessages().
    require_once($sourcedir . '/Subs-Post.php');

    // Remember the last board they moved things to.
    if (isset($_REQUEST['move_to']))
        $_SESSION['move_to_topic'] = $_REQUEST['move_to'];

    // Only a few possible actions.
    $possibleActions = array();

    if (!empty($board))
    {
        $boards_can = array(
            'make_sticky' => allowedTo('make_sticky') ? array($board) : array(),
            'move_any' => allowedTo('move_any') ? array($board) : array(),
            'move_own' => allowedTo('move_own') ? array($board) : array(),
            'remove_any' => allowedTo('remove_any') ? array($board) : array(),
            'remove_own' => allowedTo('remove_own') ? array($board) : array(),
            'lock_any' => allowedTo('lock_any') ? array($board) : array(),
            'lock_own' => allowedTo('lock_own') ? array($board) : array(),
            'merge_any' => allowedTo('merge_any') ? array($board) : array(),
            'approve_posts' => allowedTo('approve_posts') ? array($board) : array(),
        );

        $redirect_url = 'board=' . $board . '.' . $_REQUEST['start'];
    }
    else
    {
        $boards_can = boardsAllowedTo(array('make_sticky', 'move_any', 'move_own', 'remove_any', 'remove_own', 'lock_any', 'lock_own', 'merge_any', 'approve_posts'), true, false);

        $redirect_url = isset($_POST['redirect_url']) ? $_POST['redirect_url'] : (isset($_SESSION['old_url']) ? $_SESSION['old_url'] : '');
    }

    // Are we enforcing the "no moving topics to boards where you can't post new ones" rule?
    if (!$user_info['is_admin'] && !$modSettings['topic_move_any'])
    {
        // Don't count this board, if it's specified
        if (!empty($board))
        {
            $boards_can['post_new'] = array_diff(boardsAllowedTo('post_new'), array($board));
        }
        else
        {
            $boards_can['post_new'] = boardsAllowedTo('post_new');
        }

        if (empty($boards_can['post_new']))
        {
            $boards_can['move_any'] = $boards_can['move_own'] = array();
        }
    }

    if (!$user_info['is_guest'])
        $possibleActions[] = 'markread';

    if (!empty($boards_can['make_sticky']))
        $possibleActions[] = 'sticky';

    if (!empty($boards_can['move_any']) || !empty($boards_can['move_own']))
        $possibleActions[] = 'move';

    if (!empty($boards_can['remove_any']) || !empty($boards_can['remove_own']))
        $possibleActions[] = 'remove';

    if (!empty($boards_can['lock_any']) || !empty($boards_can['lock_own']))
        $possibleActions[] = 'lock';

    if (!empty($boards_can['merge_any']))
        $possibleActions[] = 'merge';

    if (!empty($boards_can['approve_posts']))
        $possibleActions[] = 'approve';

    // Two methods: $_REQUEST['actions'] (id_topic => action), and $_REQUEST['topics'] and $_REQUEST['qaction'].
    // (if action is 'move', $_REQUEST['move_to'] or $_REQUEST['move_tos'][$topic] is used.)
    if (!empty($_REQUEST['topics']))
    {
        // If the action isn't valid, just quit now.
        if (empty($_REQUEST['qaction']) || !in_array($_REQUEST['qaction'], $possibleActions))
            redirectexit($redirect_url);

        // Merge requires all topics as one parameter and can be done at once.
        if ($_REQUEST['qaction'] == 'merge')
        {
            // Merge requires at least two topics.
            if (empty($_REQUEST['topics']) || count($_REQUEST['topics']) < 2)
                redirectexit($redirect_url);

            require_once($sourcedir . '/SplitTopics.php');
            return MergeExecute($_REQUEST['topics']);
        }

        // Just convert to the other method, to make it easier.
        foreach ($_REQUEST['topics'] as $topic)
            $_REQUEST['actions'][(int) $topic] = $_REQUEST['qaction'];
    }

    // Weird... how'd you get here?
    if (empty($_REQUEST['actions']))
        redirectexit($redirect_url);

    // Validate each action.
    $temp = array();
    foreach ($_REQUEST['actions'] as $topic => $action)
    {
        if (in_array($action, $possibleActions))
            $temp[(int) $topic] = $action;
    }
    $_REQUEST['actions'] = $temp;

    if (!empty($_REQUEST['actions']))
    {
        // Find all topics...
        $request = $smcFunc['db_query']('', '
            SELECT id_topic, id_member_started, id_board, locked, approved, unapproved_posts
            FROM {db_prefix}topics
            WHERE id_topic IN ({array_int:action_topic_ids})
            LIMIT {int:limit}',
            array(
                'action_topic_ids' => array_keys($_REQUEST['actions']),
                'limit' => count($_REQUEST['actions']),
            )
        );
        while ($row = $smcFunc['db_fetch_assoc']($request))
        {
            if (!empty($board))
            {
                if ($row['id_board'] != $board || ($modSettings['postmod_active'] && !$row['approved'] && !allowedTo('approve_posts')))
                    unset($_REQUEST['actions'][$row['id_topic']]);
            }
            else
            {
                // Don't allow them to act on unapproved posts they can't see...
                if ($modSettings['postmod_active'] && !$row['approved'] && !in_array(0, $boards_can['approve_posts']) && !in_array($row['id_board'], $boards_can['approve_posts']))
                    unset($_REQUEST['actions'][$row['id_topic']]);
                // Goodness, this is fun.  We need to validate the action.
                elseif ($_REQUEST['actions'][$row['id_topic']] == 'sticky' && !in_array(0, $boards_can['make_sticky']) && !in_array($row['id_board'], $boards_can['make_sticky']))
                    unset($_REQUEST['actions'][$row['id_topic']]);
                elseif ($_REQUEST['actions'][$row['id_topic']] == 'move' && !in_array(0, $boards_can['move_any']) && !in_array($row['id_board'], $boards_can['move_any']) && ($row['id_member_started'] != $user_info['id'] || (!in_array(0, $boards_can['move_own']) && !in_array($row['id_board'], $boards_can['move_own']))))
                    unset($_REQUEST['actions'][$row['id_topic']]);
                elseif ($_REQUEST['actions'][$row['id_topic']] == 'remove' && !in_array(0, $boards_can['remove_any']) && !in_array($row['id_board'], $boards_can['remove_any']) && ($row['id_member_started'] != $user_info['id'] || (!in_array(0, $boards_can['remove_own']) && !in_array($row['id_board'], $boards_can['remove_own']))))
                    unset($_REQUEST['actions'][$row['id_topic']]);
                // @todo $locked is not set, what are you trying to do? (taking the change it is supposed to be $row['locked'])
                elseif ($_REQUEST['actions'][$row['id_topic']] == 'lock' && !in_array(0, $boards_can['lock_any']) && !in_array($row['id_board'], $boards_can['lock_any']) && ($row['id_member_started'] != $user_info['id'] || $row['locked'] == 1 || (!in_array(0, $boards_can['lock_own']) && !in_array($row['id_board'], $boards_can['lock_own']))))
                    unset($_REQUEST['actions'][$row['id_topic']]);
                // If the topic is approved then you need permission to approve the posts within.
                elseif ($_REQUEST['actions'][$row['id_topic']] == 'approve' && (!$row['unapproved_posts'] || (!in_array(0, $boards_can['approve_posts']) && !in_array($row['id_board'], $boards_can['approve_posts']))))
                    unset($_REQUEST['actions'][$row['id_topic']]);
            }
        }
        $smcFunc['db_free_result']($request);
    }

    $stickyCache = array();
    $moveCache = array(0 => array(), 1 => array());
    $removeCache = array();
    $lockCache = array();
    $markCache = array();
    $approveCache = array();

    // Separate the actions.
    foreach ($_REQUEST['actions'] as $topic => $action)
    {
        $topic = (int) $topic;

        if ($action == 'markread')
            $markCache[] = $topic;
        elseif ($action == 'sticky')
            $stickyCache[] = $topic;
        elseif ($action == 'move')
        {
            require_once($sourcedir . '/MoveTopic.php');
            moveTopicConcurrence();

            // $moveCache[0] is the topic, $moveCache[1] is the board to move to.
            $moveCache[1][$topic] = (int) (isset($_REQUEST['move_tos'][$topic]) ? $_REQUEST['move_tos'][$topic] : $_REQUEST['move_to']);

            if (empty($moveCache[1][$topic]))
                continue;

            $moveCache[0][] = $topic;
        }
        elseif ($action == 'remove')
            $removeCache[] = $topic;
        elseif ($action == 'lock')
            $lockCache[] = $topic;
        elseif ($action == 'approve')
            $approveCache[] = $topic;
    }

    if (empty($board))
        $affectedBoards = array();
    else
        $affectedBoards = array($board => array(0, 0));

    // Do all the stickies...
    if (!empty($stickyCache))
    {
        $smcFunc['db_query']('', '
            UPDATE {db_prefix}topics
            SET is_sticky = CASE WHEN is_sticky = {int:is_sticky} THEN 0 ELSE 1 END
            WHERE id_topic IN ({array_int:sticky_topic_ids})',
            array(
                'sticky_topic_ids' => $stickyCache,
                'is_sticky' => 1,
            )
        );

        // Get the board IDs and Sticky status
        $request = $smcFunc['db_query']('', '
            SELECT id_topic, id_board, is_sticky
            FROM {db_prefix}topics
            WHERE id_topic IN ({array_int:sticky_topic_ids})
            LIMIT {int:limit}',
            array(
                'sticky_topic_ids' => $stickyCache,
                'limit' => count($stickyCache),
            )
        );
        $stickyCacheBoards = array();
        $stickyCacheStatus = array();
        while ($row = $smcFunc['db_fetch_assoc']($request))
        {
            $stickyCacheBoards[$row['id_topic']] = $row['id_board'];
            $stickyCacheStatus[$row['id_topic']] = empty($row['is_sticky']);
        }
        $smcFunc['db_free_result']($request);
    }

    // Move sucka! (this is, by the by, probably the most complicated part....)
    if (!empty($moveCache[0]))
    {
        // I know - I just KNOW you're trying to beat the system.  Too bad for you... we CHECK :P.
        $request = $smcFunc['db_query']('', '
            SELECT t.id_topic, t.id_board, b.count_posts
            FROM {db_prefix}topics AS t
                LEFT JOIN {db_prefix}boards AS b ON (t.id_board = b.id_board)
            WHERE t.id_topic IN ({array_int:move_topic_ids})' . (!empty($board) && !allowedTo('move_any') ? '
                AND t.id_member_started = {int:current_member}' : '') . '
            LIMIT {int:limit}',
            array(
                'current_member' => $user_info['id'],
                'move_topic_ids' => $moveCache[0],
                'limit' => count($moveCache[0])
            )
        );
        $moveTos = array();
        $moveCache2 = array();
        $countPosts = array();
        while ($row = $smcFunc['db_fetch_assoc']($request))
        {
            $to = $moveCache[1][$row['id_topic']];

            if (empty($to))
                continue;

            // Does this topic's board count the posts or not?
            $countPosts[$row['id_topic']] = empty($row['count_posts']);

            if (!isset($moveTos[$to]))
                $moveTos[$to] = array();

            $moveTos[$to][] = $row['id_topic'];

            // For reporting...
            $moveCache2[] = array($row['id_topic'], $row['id_board'], $to);
        }
        $smcFunc['db_free_result']($request);

        $moveCache = $moveCache2;

        require_once($sourcedir . '/MoveTopic.php');

        // Do the actual moves...
        foreach ($moveTos as $to => $topics)
            moveTopics($topics, $to);

        // Does the post counts need to be updated?
        if (!empty($moveTos))
        {
            $topicRecounts = array();
            $request = $smcFunc['db_query']('', '
                SELECT id_board, count_posts
                FROM {db_prefix}boards
                WHERE id_board IN ({array_int:move_boards})',
                array(
                    'move_boards' => array_keys($moveTos),
                )
            );

            while ($row = $smcFunc['db_fetch_assoc']($request))
            {
                $cp = empty($row['count_posts']);

                // Go through all the topics that are being moved to this board.
                foreach ($moveTos[$row['id_board']] as $topic)
                {
                    // If both boards have the same value for post counting then no adjustment needs to be made.
                    if ($countPosts[$topic] != $cp)
                    {
                        // If the board being moved to does count the posts then the other one doesn't so add to their post count.
                        $topicRecounts[$topic] = $cp ? '+' : '-';
                    }
                }
            }

            $smcFunc['db_free_result']($request);

            if (!empty($topicRecounts))
            {
                $members = array();

                // Get all the members who have posted in the moved topics.
                $request = $smcFunc['db_query']('', '
                    SELECT id_member, id_topic
                    FROM {db_prefix}messages
                    WHERE id_topic IN ({array_int:moved_topic_ids})',
                    array(
                        'moved_topic_ids' => array_keys($topicRecounts),
                    )
                );

                while ($row = $smcFunc['db_fetch_assoc']($request))
                {
                    if (!isset($members[$row['id_member']]))
                        $members[$row['id_member']] = 0;

                    if ($topicRecounts[$row['id_topic']] === '+')
                        $members[$row['id_member']] += 1;
                    else
                        $members[$row['id_member']] -= 1;
                }

                $smcFunc['db_free_result']($request);

                // And now update them member's post counts
                foreach ($members as $id_member => $post_adj)
                    updateMemberData($id_member, array('posts' => 'posts + ' . $post_adj));
            }
        }
    }

    // Now delete the topics...
    if (!empty($removeCache))
    {
        // They can only delete their own topics. (we wouldn't be here if they couldn't do that..)
        $result = $smcFunc['db_query']('', '
            SELECT id_topic, id_board
            FROM {db_prefix}topics
            WHERE id_topic IN ({array_int:removed_topic_ids})' . (!empty($board) && !allowedTo('remove_any') ? '
                AND id_member_started = {int:current_member}' : '') . '
            LIMIT {int:limit}',
            array(
                'current_member' => $user_info['id'],
                'removed_topic_ids' => $removeCache,
                'limit' => count($removeCache),
            )
        );

        $removeCache = array();
        $removeCacheBoards = array();
        while ($row = $smcFunc['db_fetch_assoc']($result))
        {
            $removeCache[] = $row['id_topic'];
            $removeCacheBoards[$row['id_topic']] = $row['id_board'];
        }
        $smcFunc['db_free_result']($result);

        // Maybe *none* were their own topics.
        if (!empty($removeCache))
        {
            // Gotta send the notifications *first*!
            foreach ($removeCache as $topic)
            {
                // Only log the topic ID if it's not in the recycle board.
                logAction('remove', array((empty($modSettings['recycle_enable']) || $modSettings['recycle_board'] != $removeCacheBoards[$topic] ? 'topic' : 'old_topic_id') => $topic, 'board' => $removeCacheBoards[$topic]));
                sendNotifications($topic, 'remove');
            }

            require_once($sourcedir . '/RemoveTopic.php');
            removeTopics($removeCache);
        }
    }

    // Approve the topics...
    if (!empty($approveCache))
    {
        // We need unapproved topic ids and their authors!
        $request = $smcFunc['db_query']('', '
            SELECT id_topic, id_member_started
            FROM {db_prefix}topics
            WHERE id_topic IN ({array_int:approve_topic_ids})
                AND approved = {int:not_approved}
            LIMIT {int:limit}',
            array(
                'approve_topic_ids' => $approveCache,
                'not_approved' => 0,
                'limit' => count($approveCache),
            )
        );
        $approveCache = array();
        $approveCacheMembers = array();
        while ($row = $smcFunc['db_fetch_assoc']($request))
        {
            $approveCache[] = $row['id_topic'];
            $approveCacheMembers[$row['id_topic']] = $row['id_member_started'];
        }
        $smcFunc['db_free_result']($request);

        // Any topics to approve?
        if (!empty($approveCache))
        {
            // Handle the approval part...
            approveTopics($approveCache);

            // Time for some logging!
            foreach ($approveCache as $topic)
                logAction('approve_topic', array('topic' => $topic, 'member' => $approveCacheMembers[$topic]));
        }
    }

    // And (almost) lastly, lock the topics...
    if (!empty($lockCache))
    {
        $lockStatus = array();

        // Gotta make sure they CAN lock/unlock these topics...
        if (!empty($board) && !allowedTo('lock_any'))
        {
            // Make sure they started the topic AND it isn't already locked by someone with higher priv's.
            $result = $smcFunc['db_query']('', '
                SELECT id_topic, locked, id_board
                FROM {db_prefix}topics
                WHERE id_topic IN ({array_int:locked_topic_ids})
                    AND id_member_started = {int:current_member}
                    AND locked IN (2, 0)
                LIMIT {int:limit}',
                array(
                    'current_member' => $user_info['id'],
                    'locked_topic_ids' => $lockCache,
                    'limit' => count($lockCache),
                )
            );
            $lockCache = array();
            $lockCacheBoards = array();
            while ($row = $smcFunc['db_fetch_assoc']($result))
            {
                $lockCache[] = $row['id_topic'];
                $lockCacheBoards[$row['id_topic']] = $row['id_board'];
                $lockStatus[$row['id_topic']] = empty($row['locked']);
            }
            $smcFunc['db_free_result']($result);
        }
        else
        {
            $result = $smcFunc['db_query']('', '
                SELECT id_topic, locked, id_board
                FROM {db_prefix}topics
                WHERE id_topic IN ({array_int:locked_topic_ids})
                LIMIT {int:limit}',
                array(
                    'locked_topic_ids' => $lockCache,
                    'limit' => count($lockCache)
                )
            );
            $lockCacheBoards = array();
            while ($row = $smcFunc['db_fetch_assoc']($result))
            {
                $lockStatus[$row['id_topic']] = empty($row['locked']);
                $lockCacheBoards[$row['id_topic']] = $row['id_board'];
            }
            $smcFunc['db_free_result']($result);
        }

        // It could just be that *none* were their own topics...
        if (!empty($lockCache))
        {
            // Alternate the locked value.
            $smcFunc['db_query']('', '
                UPDATE {db_prefix}topics
                SET locked = CASE WHEN locked = {int:is_locked} THEN ' . (allowedTo('lock_any') ? '1' : '2') . ' ELSE 0 END
                WHERE id_topic IN ({array_int:locked_topic_ids})',
                array(
                    'locked_topic_ids' => $lockCache,
                    'is_locked' => 0,
                )
            );
        }
    }

    if (!empty($markCache))
    {
        $request = $smcFunc['db_query']('', '
            SELECT id_topic, unwatched
            FROM {db_prefix}log_topics
            WHERE id_topic IN ({array_int:selected_topics})
                AND id_member = {int:current_user}',
            array(
                'selected_topics' => $markCache,
                'current_user' => $user_info['id'],
            )
        );
        $logged_topics = array();
        while ($row = $smcFunc['db_fetch_assoc']($request))
            $logged_topics[$row['id_topic']] = $row['unwatched'];

        $smcFunc['db_free_result']($request);

        $markArray = array();
        foreach ($markCache as $topic)
            $markArray[] = array($modSettings['maxMsgID'], $user_info['id'], $topic, (isset($logged_topics[$topic]) ? $logged_topics[$topic] : 0));

        $smcFunc['db_insert']('replace',
            '{db_prefix}log_topics',
            array('id_msg' => 'int', 'id_member' => 'int', 'id_topic' => 'int', 'unwatched' => 'int'),
            $markArray,
            array('id_member', 'id_topic')
        );
    }

    foreach ($moveCache as $topic)
    {
        // Didn't actually move anything!
        if (!isset($topic[0]))
            break;

        logAction('move', array('topic' => $topic[0], 'board_from' => $topic[1], 'board_to' => $topic[2]));
        sendNotifications($topic[0], 'move');
    }
    foreach ($lockCache as $topic)
    {
        logAction($lockStatus[$topic] ? 'lock' : 'unlock', array('topic' => $topic, 'board' => $lockCacheBoards[$topic]));
        sendNotifications($topic, $lockStatus[$topic] ? 'lock' : 'unlock');
    }
    foreach ($stickyCache as $topic)
    {
        logAction($stickyCacheStatus[$topic] ? 'unsticky' : 'sticky', array('topic' => $topic, 'board' => $stickyCacheBoards[$topic]));
        sendNotifications($topic, 'sticky');
    }

    updateStats('topic');
    updateStats('message');
    updateSettings(array(
        'calendar_updated' => time(),
    ));

    if (!empty($affectedBoards))
        updateLastMessages(array_keys($affectedBoards));

    redirectexit($redirect_url);
}

?>