$sfn_id = request_param('sfn_id');
$topic_id = $sprink->api_url("topics/" . $sfn_id);
}
if (!$topic_id) {
die("Internal error: expected id parameter.");
}
$topic = $sprink->topic($topic_id);
$topic_head = array_shift($topic['replies']);
$reply_count = count($topic['replies']);
$topic['replies'] = thread_items($topic['replies'], $topic_head['id']);
$toplevel_reply_count = count($topic['replies']);
$topic['replies'] = flatten_threads($topic['replies']);
$sprink->resolve_author($topic_head);
$sprink->resolve_authors($topic['replies']);
$related_topics = $sprink->topics(array('related' => $topic_id));
list($company_related_topics, $noncompany_related_topics) = $sprink->company_partition($related_topics['topics']);
$noncompany_related_topics = take($related_topics_count, $noncompany_related_topics);
resolve_companies($noncompany_related_topics);
list($company_promoted, $star_promoted) = filter_promoted($topic['replies']);
$smarty->assign('topic_head', $topic_head);
$smarty->assign('replies', $topic['replies']);
$smarty->assign('related_topics', $noncompany_related_topics);
$smarty->assign('particip', $topic['particip']);
$smarty->assign('tags', $topic['tags']);
$smarty->assign(array('reply_count' => $reply_count, 'toplevel_reply_count' => $toplevel_reply_count));
$smarty->assign('num_pages', ceil($toplevel_reply_count / $topic_page_size));
$smarty->assign('page_num', $page_num);
$smarty->assign('topic_id', $topic_id);
$smarty->assign('reply_url', $reply_url);
$smarty->assign(array('company_promoted_replies' => $company_promoted, 'star_promoted_replies' => $star_promoted));
$smarty->assign('flagged_topic', request_param('flagged_topic'));
