<?php

require('includes/header.php');

// Validate / fetch topic info.

if( ! ctype_digit($_GET['id']))

{

add_error('Invalid ID.', true);

}

$topic=new Topic(intval($_GET['id']));

$topic->Parse();

$topic->GetReplies();

Output::Assign('topic',$topic);

update_activity('topic', $_GET['id']);

$page_title = 'Topic: ' . htmlspecialchars($topic->Headline);

// Increment visit count.

if( ! isset($_SESSION['visited_topics'][$_GET['id']]) && isset($_COOKIE['SID']))

{

$_SESSION['visited_topics'][$_GET['id']] = 1;

DB::Execute('UPDATE {P}Topics SET visits = visits + 1 WHERE id = '.$_GET['id']);

}

// Set visited cookie...

$last_read_post = $User->Visited[$_GET['id']];

if($last_read_post !== $topic->Replies)

{

// Build cookie.

// Add the current topic:

$User->Visited = array( $_GET['id'] => $topic_replies) + $User->Visited;

// Readd old topics.

foreach($User->Visited as $cur_topic_id => $num_replies)

{

// If the cookie is getting too long (4kb), stop.

if(strlen($cookie_string) > 3900)

{

break;

}

$cookie_string .= 't' . $cur_topic_id . 'n' . $num_replies;

}

CreateCookie('topic_visits', $cookie_string);

}

Output::Assign('LastReadPost',$last_read_post);

// Output dummy form. (This is for JavaScript submissions to action.php.)

dummy_form();

echo Output::$tpl->Fetch('topic.tpl.php');

require('includes/footer.php');

?>