This repository has been archived on 2024-09-05. You can view files and clone it, but cannot push or open issues or pull requests.
shimmie2/ext/autocomplete/main.php
2024-01-15 14:08:11 +00:00

74 lines
1.9 KiB
PHP

<?php
declare(strict_types=1);
namespace Shimmie2;
class AutoComplete extends Extension
{
public function get_priority(): int
{
return 30;
} // before Home
public function onPageRequest(PageRequestEvent $event): void
{
global $page;
if ($event->page_matches("api/internal/autocomplete")) {
$limit = (int)($_GET["limit"] ?? 1000);
$s = $_GET["s"] ?? "";
$res = $this->complete($s, $limit);
$page->set_mode(PageMode::DATA);
$page->set_mime(MimeType::JSON);
$page->set_data(json_encode($res));
}
}
private function complete(string $search, int $limit): array
{
global $cache, $database;
$search = strtolower($search);
if (
$search == '' ||
$search[0] == '_' ||
$search[0] == '%' ||
strlen($search) > 32
) {
return [];
}
# memcache keys can't contain spaces
$cache_key = "autocomplete:$limit:" . md5($search);
$limitSQL = "";
$search = str_replace('_', '\_', $search);
$search = str_replace('%', '\%', $search);
$SQLarr = [
"search" => "$search%",
"cat_search" => Extension::is_enabled(TagCategoriesInfo::KEY) ? "%:$search%" : "",
];
if ($limit !== 0) {
$limitSQL = "LIMIT :limit";
$SQLarr['limit'] = $limit;
$cache_key .= "-" . $limit;
}
return cache_get_or_set($cache_key, fn () => $database->get_pairs(
"
SELECT tag, count
FROM tags
WHERE (
LOWER(tag) LIKE LOWER(:search)
OR LOWER(tag) LIKE LOWER(:cat_search)
)
AND count > 0
ORDER BY count DESC, tag ASC
$limitSQL
",
$SQLarr
), 600);
}
}