<?php

define('IN_FORUM',   true);
define('BB_SCRIPT', 'index');
define('BB_ROOT', './');
require(BB_ROOT .'common.php');

$page_cfg['load_tpl_vars'] = array(
	'post_icons',
);

//
// Define censored word matches
//
$orig_word = $replacement_word = array();
obtain_word_list($orig_word, $replacement_word);

$show_last_topic    = true;
$last_topic_max_len = 28;
$show_online_users  = true;
$show_subforums     = true;

$datastore->enqueue(array(
	'stats',
	'moderators',
));
if ($bb_cfg['show_latest_news'])
{
	$datastore->enqueue('latest_news');
}
if ($bb_cfg['show_network_news'])
{
	$datastore->enqueue('network_news');
}

// Init userdata
$user->session_start();

// Init main vars
$viewcat = isset($_GET['c']) ? (int) $_GET['c'] : 0;
$lastvisit = (IS_GUEST) ? TIMENOW : $userdata['user_lastvisit'];

// Caching output
$req_page = 'index_page';
$req_page .= ($viewcat) ? "_c{$viewcat}" : '';

define('REQUESTED_PAGE', $req_page);
caching_output(IS_GUEST, 'send', REQUESTED_PAGE .'_guest_'. $bb_cfg['default_lang']);

$hide_cat_opt  = isset($user->opt_js['h_cat']) ? (string) $user->opt_js['h_cat'] : 0;
$hide_cat_user = array_flip(explode('-', $hide_cat_opt));
$showhide = isset($_GET['sh']) ? (int) $_GET['sh'] : 0;

// Topics read tracks
$tracking_topics = get_tracks('topic');
$tracking_forums = get_tracks('forum');

// Statistics
if (!$stats = $datastore->get('stats'))
{
	$datastore->update('stats');
	$stats = $datastore->get('stats');
}

// Forums data
if (!$forums = $datastore->get('cat_forums'))
{
	$datastore->update('cat_forums');
	$forums = $datastore->get('cat_forums');
}
$cat_title_html = $forums['cat_title_html'];
$forum_name_html = $forums['forum_name_html'];

$anon = GUEST_UID;
$excluded_forums_csv = $user->get_excluded_forums(AUTH_VIEW);
$only_new = $user->opt_js['only_new'];

// Validate requested category id
if ($viewcat AND !$viewcat =& $forums['c'][$viewcat]['cat_id'])
{
	redirect("index.php");
}

// Forums
$forums_join_sql = 'f.cat_id = c.cat_id';
$forums_join_sql .= ($viewcat) ? "
	AND f.cat_id = $viewcat
" : '';
$forums_join_sql .= ($excluded_forums_csv) ? "
	AND f.forum_id NOT IN($excluded_forums_csv)
	AND f.forum_parent NOT IN($excluded_forums_csv)
" : '';

// Posts
$posts_join_sql = "p.post_id = f.forum_last_post_id";
$posts_join_sql .= ($only_new == ONLY_NEW_POSTS) ? "
	AND p.post_time > $lastvisit
" : '';
$join_p_type = ($only_new == ONLY_NEW_POSTS) ? 'INNER JOIN' : 'LEFT JOIN';

// Topics
$topics_join_sql = "t.topic_last_post_id = p.post_id";
$topics_join_sql .= ($only_new == ONLY_NEW_TOPICS) ? "
	AND t.topic_time > $lastvisit
" : '';
$join_t_type = ($only_new == ONLY_NEW_TOPICS) ? 'INNER JOIN' : 'LEFT JOIN';

$sql = "
	SELECT SQL_CACHE
		f.cat_id, f.forum_id, f.forum_status, f.forum_parent, f.show_on_index,
		p.post_id AS last_post_id, p.post_time AS last_post_time,
		t.topic_id AS last_topic_id, t.topic_title AS last_topic_title,
		u.user_id AS last_post_user_id, u.user_rank AS last_post_user_rank,
		IF(p.poster_id = $anon, p.post_username, u.username) AS last_post_username
	FROM         ". BB_CATEGORIES ." c
	INNER JOIN   ". BB_FORUMS     ." f ON($forums_join_sql)
	$join_p_type ". BB_POSTS      ." p ON($posts_join_sql)
	$join_t_type ". BB_TOPICS     ." t ON($topics_join_sql)
	LEFT JOIN    ". BB_USERS      ." u ON(u.user_id = p.poster_id)
	ORDER BY c.cat_order, f.forum_order
";

$replace_in_parent = array(
	'last_post_id',
	'last_post_time',
	'last_post_user_id',
	'last_post_username',
	'last_post_user_rank',
	'last_topic_title',
	'last_topic_id',
);

$cache_name = 'index_sql_' . md5($sql);
if (!$cat_forums = CACHE('bb_cache')->get($cache_name))
{
	$cat_forums = array();
	foreach (DB()->fetch_rowset($sql) as $row)
	{
		if (!$cat_id = $row['cat_id'] OR !$forum_id = $row['forum_id'])
		{
			continue;
		}

		if ($parent_id = $row['forum_parent'])
		{
			if (!$parent =& $cat_forums[$cat_id]['f'][$parent_id])
			{
				$parent = $forums['f'][$parent_id];
				$parent['last_post_time'] = 0;
			}
			if ($row['last_post_time'] > $parent['last_post_time'])
			{
				foreach ($replace_in_parent as $key)
				{
					$parent[$key] = $row[$key];
				}
			}
			if ($show_subforums && $row['show_on_index'])
			{
				$parent['last_sf_id'] = $forum_id;
			}
			else
			{
				continue;
			}
		}
		else
		{
			$f =& $forums['f'][$forum_id];
			$row['forum_desc']   = $f['forum_desc'];
			$row['forum_posts']  = $f['forum_posts'];
			$row['forum_topics'] = $f['forum_topics'];
		}
		$cat_forums[$cat_id]['f'][$forum_id] = $row;
	}
	CACHE('bb_cache')->set($cache_name, $cat_forums, 180);
	unset($row, $forums);
	$datastore->rm('cat_forums');
}

// Obtain list of moderators
$moderators = array();
if (!$mod = $datastore->get('moderators'))
{
	$datastore->update('moderators');
	$mod = $datastore->get('moderators');
}

if (!empty($mod))
{
	foreach ($mod['mod_users'] as $forum_id => $user_ids)
	{
		foreach ($user_ids as $user_id)
		{
			$moderators[$forum_id][] = '<a href="'. PROFILE_URL . $user_id .'">'. $mod['name_users'][$user_id] .'</a>';
		}
	}
	foreach ($mod['mod_groups'] as $forum_id => $group_ids)
	{
		foreach ($group_ids as $group_id)
		{
			$moderators[$forum_id][] = '<a href="'. GROUP_URL . $group_id .'">'. $mod['name_groups'][$group_id] .'</a>';
		}
	}
}

unset($mod);
$datastore->rm('moderators');

// Build index page
$forums_count = 0;
foreach ($cat_forums as $cid => $c)
{
	$template->assign_block_vars('h_c', array(
		'H_C_ID'     => $cid,
		'H_C_TITLE'  => $cat_title_html[$cid],
		'H_C_CHEKED' => in_array($cid, preg_split("/[-]+/", $hide_cat_opt)) ? 'checked' : '',
	));

	$template->assign_vars(array(
		'H_C_AL_MESS'  => ($hide_cat_opt && !$showhide) ? true : false,
	));

	if (!$showhide && isset($hide_cat_user[$cid]) && !$viewcat)
	{
		continue;
	}

	$template->assign_block_vars('c', array(
		'CAT_ID'    => $cid,
		'CAT_TITLE' => $cat_title_html[$cid],
		'U_VIEWCAT' => CAT_URL . $cid,
	));

	foreach ($c['f'] as $fid => $f)
	{
		if (!$fname_html =& $forum_name_html[$fid])
		{
			continue;
		}
		$is_sf = $f['forum_parent'];

		$forums_count++;
		$new = is_unread($f['last_post_time'], $f['last_topic_id'], $f['forum_id']) ? '_new' : '';
		$folder_image = ($is_sf) ? $images["icon_minipost{$new}"] : $images["forum{$new}"];

		if ($f['forum_status'] == FORUM_LOCKED)
		{
			$folder_image = ($is_sf) ? $images['icon_minipost'] : $images['forum_locked'];
		}

		if ($is_sf)
		{
			$template->assign_block_vars('c.f.sf', array(
				'SF_ID'   => $fid,
				'SF_NAME' => $fname_html,
				'SF_NEW'  => $new ? ' new' : '',
			));
			continue;
		}

		$template->assign_block_vars('c.f', array(
			'FORUM_FOLDER_IMG' => $folder_image,
			'FORUM_ID'         => $fid,
			'FORUM_NAME'       => $fname_html,
			'FORUM_DESC'       => $f['forum_desc'],
			'POSTS'            => commify($f['forum_posts']),
			'TOPICS'           => commify($f['forum_topics']),
			'LAST_SF_ID'       => isset($f['last_sf_id']) ? $f['last_sf_id'] : null,
			'MODERATORS'       => isset($moderators[$fid]) ? join(', ', $moderators[$fid]) : '',
			'FORUM_FOLDER_ALT' => ($new) ? $lang['NEW'] : $lang['OLD'],
		));

		if ($f['last_post_id'])
		{
			$template->assign_block_vars('c.f.last', array(
				'LAST_TOPIC_ID'       => $f['last_topic_id'],
				'LAST_TOPIC_TIP'      => preg_replace($orig_word, $replacement_word, $f['last_topic_title']),
				'LAST_TOPIC_TITLE'    => wbr(str_short(preg_replace($orig_word, $replacement_word, $f['last_topic_title']), $last_topic_max_len)),
				'LAST_POST_TIME'      => bb_date($f['last_post_time'], $bb_cfg['last_post_date_format']),
				'LAST_POST_USER'      => profile_url(array('username' => str_short($f['last_post_username'], 15), 'user_id' => $f['last_post_user_id'], 'user_rank' => $f['last_post_user_rank'])),
			));
		}
	}
}

$template->assign_vars(array(
	'SHOW_FORUMS'           => $forums_count,
	'SHOW_MAP'              => (isset($_GET['map']) && !IS_GUEST),
	'PAGE_TITLE'            => ($viewcat) ? $cat_title_html[$viewcat] : $lang['HOME'],
	'NO_FORUMS_MSG'         => ($only_new) ? $lang['NO_NEW_POSTS'] : $lang['NO_FORUMS'],

	'TOTAL_TOPICS'          => sprintf($lang['POSTED_TOPICS_TOTAL'], $stats['topiccount']),
	'TOTAL_POSTS'           => sprintf($lang['POSTED_ARTICLES_TOTAL'], $stats['postcount']),
	'TOTAL_USERS'           => sprintf($lang['REGISTERED_USERS_TOTAL'], $stats['usercount']),
	'TOTAL_GENDER'          => ($bb_cfg['gender']) ? sprintf($lang['USERS_TOTAL_GENDER'], $stats['male'], $stats['female'], $stats['unselect']) : '',
	'NEWEST_USER'           => sprintf($lang['NEWEST_USER'], profile_url($stats['newestuser'])),

	// Tracker stats
	'TORRENTS_STAT'         => ($bb_cfg['tor_stats']) ? sprintf($lang['TORRENTS_STAT'], $stats['torrentcount'], humn_size($stats['size'])) : '',
	'PEERS_STAT'            => ($bb_cfg['tor_stats']) ? sprintf($lang['PEERS_STAT'], $stats['peers'], $stats['seeders'], $stats['leechers']) : '',
	'SPEED_STAT'            => ($bb_cfg['tor_stats']) ? sprintf($lang['SPEED_STAT'], humn_size($stats['speed']) .'/s') : '',
	'SHOW_MOD_INDEX'        => $bb_cfg['show_mod_index'],
	'FORUM_IMG'             => $images['forum'],
	'FORUM_NEW_IMG'         => $images['forum_new'],
	'FORUM_LOCKED_IMG'      => $images['forum_locked'],

	'SHOW_ONLY_NEW_MENU'    => true,
	'ONLY_NEW_POSTS_ON'     => ($only_new == ONLY_NEW_POSTS),
	'ONLY_NEW_TOPICS_ON'    => ($only_new == ONLY_NEW_TOPICS),

	'U_SEARCH_NEW'          => "search.php?new=1",
	'U_SEARCH_SELF_BY_MY'   => "search.php?uid={$userdata['user_id']}&amp;o=1",
	'U_SEARCH_LATEST'       => "search.php?search_id=latest",
	'U_SEARCH_UNANSWERED'   => "search.php?search_id=unanswered",
	'U_ATOM_FEED'           => is_file($bb_cfg['atom']['path'] . '/f/0.atom') ? make_url($bb_cfg['atom']['url'] . '/f/0.atom') : false,

	'SHOW_LAST_TOPIC'       => $show_last_topic,
));

// Set tpl vars for bt_userdata
if ($bb_cfg['bt_show_dl_stat_on_index'] && !IS_GUEST)
{
	show_bt_userdata($userdata['user_id']);
}

// Latest news
if ($bb_cfg['show_latest_news'])
{
	if (!$latest_news = $datastore->get('latest_news'))
	{
		$datastore->update('latest_news');
		$latest_news = $datastore->get('latest_news');
	}

	$template->assign_vars(array(
		'SHOW_LATEST_NEWS' => true,
	));

	foreach ($latest_news as $news)
	{
		$template->assign_block_vars('news', array(
			'NEWS_TOPIC_ID' => $news['topic_id'],
			'NEWS_TITLE'    => str_short(preg_replace($orig_word, $replacement_word, $news['topic_title']), $bb_cfg['max_news_title']),
			'NEWS_TIME'     => bb_date($news['topic_time'], 'd-M', false),
			'NEWS_IS_NEW'   => is_unread($news['topic_time'], $news['topic_id'], $news['forum_id']),
		));
	}
}

// Network news
if ($bb_cfg['show_network_news'])
{
	if (!$network_news = $datastore->get('network_news'))
	{
		$datastore->update('network_news');
		$network_news = $datastore->get('network_news');
	}

	$template->assign_vars(array(
		'SHOW_NETWORK_NEWS' => true,
	));

	foreach ($network_news as $net)
	{
		$template->assign_block_vars('net', array(
			'NEWS_TOPIC_ID' => $net['topic_id'],
			'NEWS_TITLE'    => str_short(preg_replace($orig_word, $replacement_word, $net['topic_title']), $bb_cfg['max_net_title']),
			'NEWS_TIME'     => bb_date($net['topic_time'], 'd-M', false),
			'NEWS_IS_NEW'   => is_unread($net['topic_time'], $net['topic_id'], $net['forum_id']),
		));
	}
}

if ($bb_cfg['birthday_check_day'] && $bb_cfg['birthday_enabled'])
{
	$week_list = $today_list = array();
	$week_all = $today_all = false;

	if ($stats['birthday_week_list'])
	{
		shuffle($stats['birthday_week_list']);
		foreach ($stats['birthday_week_list'] as $i => $week)
		{
			if ($i >= 5)
			{
				$week_all = true;
				continue;
			}
			$week_list[] = profile_url($week) .' <span class="small">('. birthday_age(date('Y-m-d', strtotime('-1 year', strtotime($week['user_birthday'])))) .')</span>';
		}
		$week_all = ($week_all) ? '&nbsp;<a class="txtb" href="#" onclick="ajax.exec({action: \'index_data\', mode: \'birthday_week\'}); return false;" title="'. $lang['ALL'] .'">...</a>' : '';
		$week_list = sprintf($lang['BIRTHDAY_WEEK'], $bb_cfg['birthday_check_day'], join(', ', $week_list)) . $week_all;
	}
	else $week_list = sprintf($lang['NOBIRTHDAY_WEEK'], $bb_cfg['birthday_check_day']);

	if ($stats['birthday_today_list'])
	{
		shuffle($stats['birthday_today_list']);
		foreach ($stats['birthday_today_list'] as $i => $today)
		{
			if ($i >= 5)
			{
				$today_all = true;
				continue;
			}
			$today_list[] = profile_url($today) .' <span class="small">('. birthday_age($today['user_birthday']) .')</span>';
		}
		$today_all = ($today_all) ? '&nbsp;<a class="txtb" href="#" onclick="ajax.exec({action: \'index_data\', mode: \'birthday_today\'}); return false;" title="'. $lang['ALL'] .'">...</a>' : '';
		$today_list = $lang['BIRTHDAY_TODAY'] . join(', ', $today_list) . $today_all;
	}
	else $today_list = $lang['NOBIRTHDAY_TODAY'];

	$template->assign_vars(array(
		'WHOSBIRTHDAY_WEEK'  => $week_list,
		'WHOSBIRTHDAY_TODAY' => $today_list,
	));
}

// Allow cron
if (IS_AM)
{
	if (file_exists(CRON_RUNNING))
	{
		if (file_exists(CRON_ALLOWED))
		{
			unlink (CRON_ALLOWED);
		}
		rename(CRON_RUNNING, CRON_ALLOWED);
	}
}

// Display page
define('SHOW_ONLINE', $show_online_users);

if (isset($_GET['map'])) $template->assign_vars(array('PAGE_TITLE' => $lang['FORUM_MAP']));

print_page('index.tpl');