From a064f05bcdcd3c75dd1ca2cd2eedb8b9db709dc3 Mon Sep 17 00:00:00 2001
From: Tobias Feigel <info@feigel.it>
Date: Sat, 6 Sep 2025 17:12:09 +0200
Subject: [PATCH] Make backward compatible to PHP 8.3

---
 site/snippets/home-termine.php | 38 ++++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 15 deletions(-)

diff --git a/site/snippets/home-termine.php b/site/snippets/home-termine.php
index e734ec6..016710c 100644
--- a/site/snippets/home-termine.php
+++ b/site/snippets/home-termine.php
@@ -1,8 +1,8 @@
 <?php
 $events = collection('termine');
 
-// Aktuelles Datum
-$today = new DateTime()->format('Ymd');
+// Aktuelles Datum - PHP 8.3 kompatibel
+$today = (new DateTime('now'))->format('Ymd');
 
 // Nur zukünftige Termine anzeigen
 $future_events = array_filter($events, function ($event) use ($today) {
@@ -49,12 +49,24 @@ $de_months = [
                     $location = $event['LOCATION'] ?? '';
                     $desc = $event['DESCRIPTION'] ?? '';
                     $timezone = $event['DTSTART_TZID'] ?? null;
-                    $date_info = format_ics_date_with_timezone($start, $timezone);
-                    $date = $date_info['display'];
-                    $time = $date_info['has_time'] ? substr($date, 11) : 'ganztägig';
+                    
+                    // Sichere Funktionsaufrufe mit Null-Checks
+                    $date_info = function_exists('format_ics_date_with_timezone') 
+                        ? format_ics_date_with_timezone($start, $timezone) 
+                        : ['display' => '', 'has_time' => false, 'iso' => ''];
+                    
+                    $date = $date_info['display'] ?? '';
+                    $time = ($date_info['has_time'] ?? false) ? substr($date, 11) : 'ganztägig';
                     $day = substr($date, 0, 2);
                     $month = substr($date, 3, 2);
-                    $iso_date = $date_info['iso'];
+                    $iso_date = $date_info['iso'] ?? '';
+                    
+                    // Sichere Array-Zugriffe
+                    $month_name = $de_months[$month] ?? 'Unbek';
+                    $event_summary = htmlspecialchars($summary, ENT_QUOTES, 'UTF-8');
+                    $safe_day = htmlspecialchars($day, ENT_QUOTES, 'UTF-8');
+                    $safe_iso_date = htmlspecialchars($iso_date, ENT_QUOTES, 'UTF-8');
+                    $safe_time = htmlspecialchars($time, ENT_QUOTES, 'UTF-8');
                     ?>
 
                 <div class="termine-card flex-none w-full md:w-1/2 bg-gradient-to-br from-blue-50 to-blue-100 rounded-2xl transform hover:scale-102 transition-all duration-300 ease-in-out border border-blue-200">
@@ -64,14 +76,12 @@ $de_months = [
                             <div class="relative flex-shrink-0 bg-white rounded-lg shadow-md overflow-hidden w-16 h-16 flex flex-col border border-blue-200">
                                 <!-- Kopfzeile des Kalenders mit Monat -->
                                 <div class="bg-blue-600 text-white text-xs font-semibold py-1 text-center uppercase">
-                                    <span data-month><?php echo $de_months[$month]; ?></span>
+                                    <span data-month><?= $month_name ?></span>
                                 </div>
 
                                 <!-- Datumsanzeige -->
                                 <div class="flex-grow flex items-center justify-center">
-                                    <div class="text-3xl font-bold text-sf_grau-800" data-day><?php echo htmlspecialchars(
-                                      $day,
-                                    ); ?></div>
+                                    <div class="text-3xl font-bold text-sf_grau-800" data-day><?= $safe_day ?></div>
                                 </div>
 
                                 <!-- Dekorative Elemente - kleine Punkte für Kalendertage -->
@@ -86,12 +96,10 @@ $de_months = [
                                 </div>
                             </div>
                             <div class="ml-5 flex-grow">
-                                <pack class="text-xl font-medium text-sf_grau-900"><?= $event['SUMMARY'] ?></p>
+                                <p class="text-xl font-medium text-sf_grau-900"><?= $event_summary ?></p>
                                 <p class="text-sf_blau-700 text-lg font-medium mt-1">
-                                    <?php if ($date_info['has_time']): ?>
-                                        ab <span class="local-time" data-iso-date="<?php echo htmlspecialchars(
-                                          $iso_date,
-                                        ); ?>"><?php echo htmlspecialchars($time); ?></span> Uhr
+                                    <?php if ($date_info['has_time'] ?? false): ?>
+                                        ab <span class="local-time" data-iso-date="<?= $safe_iso_date ?>"><?= $safe_time ?></span> Uhr
                                     <?php else: ?>
                                         ganztägig
                                     <?php endif; ?>