<?
if (!isset($_GET['id']) || !is_number($_GET['id'])) {
  error(404);
}
$ArticleID = (int)$_GET['id'];

$Latest = Wiki::get_article($ArticleID);
list($Revision, $Title, $Body, $Read, $Edit, $Date, $AuthorID, $AuthorName) = array_shift($Latest);
if ($Read > $LoggedUser['EffectiveClass']) {
  error(404);
}
if ($Edit > $LoggedUser['EffectiveClass']) {
  error(403);
}

View::show_header("Revisions of ".$Title);
?>
<div class="thin">
  <div class="header">
    <h2>Revision history for <a href="wiki.php?action=article&amp;id=<?=$ArticleID?>"><?=$Title?></a></h2>
  </div>
  <form action="wiki.php" method="get">
    <input type="hidden" name="action" id="action" value="compare" />
    <input type="hidden" name="id" id="id" value="<?=$ArticleID?>" />
    <table>
      <tr class="colhead">
        <td>Revision</td>
        <td>Title</td>
        <td>Author</td>
        <td>Age</td>
        <td>Old</td>
        <td>New</td>
      </tr>
      <tr>
        <td><?=$Revision?></td>
        <td><?=$Title?></td>
        <td><?=Users::format_username($AuthorID, false, false, false)?></td>
        <td><?=time_diff($Date)?></td>
        <td><input type="radio" name="old" value="<?=$Revision?>" disabled="disabled" /></td>
        <td><input type="radio" name="new" value="<?=$Revision?>" checked="checked" /></td>
      </tr>
<?
$DB->query("
  SELECT
    Revision,
    Title,
    Author,
    Date
  FROM wiki_revisions
  WHERE ID = '$ArticleID'
  ORDER BY Revision DESC");
while (list($Revision, $Title, $AuthorID, $Date) = $DB->next_record()) { ?>
      <tr>
        <td><?=$Revision?></td>
        <td><?=$Title?></td>
        <td><?=Users::format_username($AuthorID, false, false, false)?></td>
        <td><?=time_diff($Date)?></td>
        <td><input type="radio" name="old" value="<?=$Revision?>" /></td>
        <td><input type="radio" name="new" value="<?=$Revision?>" /></td>
      </tr>
<? } ?>
      <tr>
        <td class="center" colspan="6">
          <input type="submit" value="Compare" />
        </td>
      </tr>
    </table>
  </form>
</div>
<? View::show_footer(); ?>
