<?


/*
User topic subscription page
*/

if(!empty($LoggedUser['DisableForums'])) {
	print
		json_encode(
			array(
				'status' => 'failure'
			)
		);
	die();
}

include(SERVER_ROOT.'/classes/class_text.php'); // Text formatting class
$Text = new TEXT;

if (isset($LoggedUser['PostsPerPage'])) {
	$PerPage = $LoggedUser['PostsPerPage'];
} else {
	$PerPage = POSTS_PER_PAGE;
}
list($Page,$Limit) = Format::page_limit($PerPage);

if($LoggedUser['CustomForums']) {
	unset($LoggedUser['CustomForums']['']);
	$RestrictedForums = implode("','", array_keys($LoggedUser['CustomForums'], 0));
	$PermittedForums = implode("','", array_keys($LoggedUser['CustomForums'], 1));
}

$ShowUnread = (!isset($_GET['showunread']) && !isset($HeavyInfo['SubscriptionsUnread']) || isset($HeavyInfo['SubscriptionsUnread']) && !!$HeavyInfo['SubscriptionsUnread'] || isset($_GET['showunread']) && !!$_GET['showunread']);
$ShowCollapsed = (!isset($_GET['collapse']) && !isset($HeavyInfo['SubscriptionsCollapse']) || isset($HeavyInfo['SubscriptionsCollapse']) && !!$HeavyInfo['SubscriptionsCollapse'] || isset($_GET['collapse']) && !!$_GET['collapse']);
$sql = 'SELECT
	SQL_CALC_FOUND_ROWS
	MAX(p.ID) AS ID
	FROM forums_posts AS p
	LEFT JOIN forums_topics AS t ON t.ID = p.TopicID
	JOIN users_subscriptions AS s ON s.TopicID = t.ID
	LEFT JOIN forums AS f ON f.ID = t.ForumID
	LEFT JOIN forums_last_read_topics AS l ON p.TopicID = l.TopicID AND l.UserID = s.UserID
	WHERE s.UserID = '.$LoggedUser['ID'].'
	AND p.ID <= IFNULL(l.PostID,t.LastPostID)
	AND ((f.MinClassRead <= '.$LoggedUser['Class'];
if(!empty($RestrictedForums)) {
	$sql.=' AND f.ID NOT IN (\''.$RestrictedForums.'\')';
}
$sql .= ')';
if(!empty($PermittedForums)) {
	$sql.=' OR f.ID IN (\''.$PermittedForums.'\')';
}
$sql .= ')';
if($ShowUnread) {
	$sql .= '
	AND IF(l.PostID IS NULL OR (t.IsLocked = \'1\' && t.IsSticky = \'0\'), t.LastPostID, l.PostID) < t.LastPostID';
}
$sql .= '
	GROUP BY t.ID
	ORDER BY t.LastPostID DESC
	LIMIT '.$Limit;
$PostIDs = $DB->query($sql);
$DB->query('SELECT FOUND_ROWS()');
list($NumResults) = $DB->next_record();

if($NumResults > $PerPage*($Page-1)) {
	$DB->set_query_id($PostIDs);
	$PostIDs = $DB->collect('ID');
	$sql = 'SELECT
		f.ID AS ForumID,
		f.Name AS ForumName,
		p.TopicID,
		t.Title,
		p.Body,
		t.LastPostID,
		t.IsLocked,
		t.IsSticky,
		p.ID,
		um.ID,
		um.Username,
		ui.Avatar,
		p.EditedUserID,
		p.EditedTime,
		ed.Username AS EditedUsername
		FROM forums_posts AS p
		LEFT JOIN forums_topics AS t ON t.ID = p.TopicID
		LEFT JOIN forums AS f ON f.ID = t.ForumID
		LEFT JOIN users_main AS um ON um.ID = p.AuthorID
		LEFT JOIN users_info AS ui ON ui.UserID = um.ID
		LEFT JOIN users_main AS ed ON ed.ID = um.ID
		WHERE p.ID IN ('.implode(',',$PostIDs).')
		ORDER BY f.Name ASC, t.LastPostID DESC';
	$DB->query($sql);
}

$JsonPosts = array();
while(list($ForumID, $ForumName, $TopicID, $ThreadTitle, $Body, $LastPostID, $Locked, $Sticky, $PostID, $AuthorID, $AuthorName, $AuthorAvatar, $EditedUserID, $EditedTime, $EditedUsername) = $DB->next_record()){
	$JsonPost = array(
		'forumId' => (int) $ForumID,
		'forumName' => $ForumName,
		'threadId' => (int) $TopicID,
		'threadTitle' => $ThreadTitle,
		'postId' => (int) $PostID,
		'lastPostId' => (int) $LastPostID,
		'locked' => $Locked == 1,
		'new' => ($PostID<$LastPostID && !$Locked)
	);
	$JsonPosts[] = $JsonPost;
}

print
	json_encode(
		array(
			'status' => 'success',
			'response' => array(
				'threads' => $JsonPosts
			)
		)
	);
?>