Files
EIS/mod_pdf_tree/helper.php
2025-08-18 11:34:09 +02:00

124 lines
3.7 KiB
PHP

<?php
defined('_JEXEC') or die;
use Joomla\CMS\Factory;
use Joomla\CMS\Router\Route;
use Joomla\Database\DatabaseDriver;
class ModEisAnzeigeHelper
{
/**
* Holt alle PDF-Elemente aus der Datenbank
*/
public static function getItems(): array
{
/** @var DatabaseDriver $db */
$db = Factory::getDbo();
$query = $db->getQuery(true)
->select('*')
->from($db->quoteName('#__eis_documents'))
->order($db->quoteName('ordering') . ' ASC');
$rows = $db->setQuery($query)->loadAssocList();
// Nach parent_id gruppieren und alphabetisch sortieren
$grouped = [];
foreach ($rows as $row) {
$pid = $row['parent_id'] === null ? null : (int) $row['parent_id'];
$grouped[$pid][] = $row;
}
// Sortieren nach name (case-insensitive)
foreach ($grouped as &$group) {
usort($group, fn($a, $b) => strcasecmp($a['name'], $b['name']));
}
return $grouped;
}
/**
* Hauptfunktion zum Rendern des Baums
*/
public static function renderTree(array $items, int $parentId = null): string
{
if (!isset($items[$parentId])) {
return '';
}
$html = '<ul class="pdf-tree">';
foreach ($items[$parentId] as $item) {
$isFolder = (bool) $item['is_folder'];
$rawName = $item['title'] ?: $item['name'];
$fileId = (int) $item['id'];
// Dateiendung .pdf entfernen
$displayName = preg_replace('/\.pdf$/i', '', $rawName);
$displayName = htmlspecialchars($displayName);
if ($isFolder) {
$fileCount = self::countFilesRecursive($items, $item['id']);
$html .= '<li class="folder">';
$html .= '📁 ' . $displayName . ' <small>(' . $fileCount . ')</small>';
$html .= self::renderTree($items, $item['id']);
$html .= '</li>';
} else {
$link = Route::_('index.php?option=com_eis&task=download.download&id=' . $fileId);
// Tooltip mit Dateigröße
$tooltip = '';
if (!empty($item['path']) && file_exists($item['path'])) {
$size = filesize($item['path']);
$tooltip = ' title="Größe: ' . self::formatFileSize($size) . '"';
}
$html .= '<li class="file">';
$html .= '📄 <a class="file-link" href="' . $link . '"' . $tooltip . '>' . $displayName . '</a>';
$html .= '</li>';
}
}
$html .= '</ul>';
return $html;
}
/**
* Zählt alle PDF-Dateien unterhalb eines Ordners rekursiv
*/
private static function countFilesRecursive(array $items, int $parentId): int
{
$count = 0;
if (!isset($items[$parentId])) {
return 0;
}
foreach ($items[$parentId] as $item) {
if ((bool) $item['is_folder']) {
$count += self::countFilesRecursive($items, $item['id']);
} else {
$count++;
}
}
return $count;
}
/**
* Formatierte Dateigröße für Tooltip
*/
private static function formatFileSize(int $bytes): string
{
if ($bytes >= 1073741824) {
return number_format($bytes / 1073741824, 2) . ' GB';
} elseif ($bytes >= 1048576) {
return number_format($bytes / 1048576, 1) . ' MB';
} elseif ($bytes >= 1024) {
return number_format($bytes / 1024, 0) . ' KB';
} else {
return $bytes . ' B';
}
}
}