<?
authorize();
if (!check_perms('site_torrents_notify')) {
	error(403);
}
$ArtistID = $_GET['artistid'];
if (!is_number($ArtistID)) {
	error(0);
}

if (($Notify = $Cache->get_value('notify_artists_'.$LoggedUser['ID'])) === false) {
	$DB->query("
		SELECT ID, Artists
		FROM users_notify_filters
		WHERE Label = 'Artist notifications'
			AND UserID = '$LoggedUser[ID]'
		ORDER BY ID
		LIMIT 1");
} else {
	$DB->query("
		SELECT ID, Artists
		FROM users_notify_filters
		WHERE ID = '$Notify[ID]'");
}
list($ID, $Artists) = $DB->next_record(MYSQLI_NUM, false);
$DB->query("
	SELECT Name
	FROM artists_alias
	WHERE ArtistID = '$ArtistID'
		AND Redirect = 0");
while (list($Alias) = $DB->next_record(MYSQLI_NUM, false)) {
	while (stripos($Artists, "|$Alias|") !== false) {
		$Artists = str_ireplace("|$Alias|", '|', $Artists);
	}
}
if ($Artists == '|') {
	$DB->query("
		DELETE FROM users_notify_filters
		WHERE ID = $ID");
} else {
	$DB->query("
		UPDATE users_notify_filters
		SET Artists = '".db_string($Artists)."'
		WHERE ID = '$ID'");
}
$Cache->delete_value('notify_filters_'.$LoggedUser['ID']);
$Cache->delete_value('notify_artists_'.$LoggedUser['ID']);
header('Location: '.$_SERVER['HTTP_REFERER']);
?>