<?php
$limit = @$Page->place['limit'] ?: 10;
$path = ' '.escapeshellarg('*.html');
$query = @$_REQUEST['q'] ?: $Page->place[0] ?? $Page->link;

if (!trim($query, '/')) return;

if (!empty($Page->place['suggest'])) {
	$cmd = "git ls-files -- $path";
	exec($cmd, $ls);
	if (!$ls) {
		die("fout bij zoeken van bestanden");
	}

	# order files by similarity to query
	$ls = array_combine($ls, array_map(function ($row) use ($query) {
		$row = preg_replace('{(?:^|/)index\.html$}', '', $row);
		return similar_text($row, $query) - strlen($row) / 8;
	}, $ls));
	arsort($ls);
	$results = array_keys($ls);
}
else {
	$cmd = "git grep -li -- ".escapeshellarg($query).$path;
	exec($cmd, $results);
	if (count($results) > $limit) {
		shuffle($results); // avoid alphabetical top set
	}
}

if (isset($Page->place['verbose'])) {
	printf("<p>%s gevonden voor <q>%s</q>:</p>\n",
		$results ? count($results).' resultaten' : 'Niets',
		htmlspecialchars($query)
	);
}

if (!$results) {
	print "Niets gevonden.";
	return;
}
if (count($results) > $limit) {
	array_splice($results, $limit);
}

if ($limit > 1) {
	print '<ul>';
}
foreach ($results as $result) {
	$page = new ArchiveArticle($result);
	$name = sprintf('<a href="/%s">%s</a>', $page->link, $page->name);
	print $limit > 1 ? "<li>$name</li>\n" : $name;
}
if ($limit > 1) {
	print "</ul>\n";
}