Stand 2026-04-13: PHP/MySQL Infrastruktur, Flussmanagement, Stadt-Prototyp

- PHP/MySQL Backend (XAMPP + Produktionsserver) - Front-Controller, API-Endpunkte, Session-Management - Flussmanagement-Simulation (Echtzeit, Punkt-basierter Fluss) - Stadt & Raumplanung (Prototyp, Top-Down Kachelsystem) - Klimawaechter 3D: Deiche kleiner, Baeume kippen, Budget angepasst - persistence.ts: Dualer Speicher (localStorage + Server-API) - 6 Unit-Test-Dateien fuer bestehende Simulationen Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-13 16:43:42 +02:00
commit f22c5ebbfe
83 changed files with 22709 additions and 0 deletions
@@ -0,0 +1,69 @@
+<?php
+/**
+ * API: Session-Management
+ * POST /api/sessions {action: "join", joinCode: "ABC123", displayName: "Anna"}
+ * POST /api/sessions {action: "status"}
+ */
+
+header('Content-Type: application/json; charset=utf-8');
+
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    Response::error('Nur POST erlaubt', 405);
+}
+
+$body = json_decode(file_get_contents('php://input'), true);
+$action = $body['action'] ?? '';
+$db = Database::get();
+
+if ($action === 'join') {
+    $joinCode = strtoupper(trim($body['joinCode'] ?? ''));
+    if (strlen($joinCode) !== 6) {
+        Response::error('Ungültiger Code');
+    }
+
+    $class = $db->fetchOne('SELECT id, name FROM classes WHERE join_code = ?', [$joinCode]);
+    if (!$class) {
+        Response::error('Klasse nicht gefunden');
+    }
+
+    $displayName = trim($body['displayName'] ?? '');
+    $uuid = Session::createStudent((int)$class['id'], $displayName);
+
+    Response::ok([
+        'sessionId'  => $uuid,
+        'className'  => $class['name'],
+        'classId'    => (int)$class['id'],
+    ]);
+}
+
+if ($action === 'status') {
+    $sessionId = Session::studentId();
+    if (!$sessionId) {
+        Response::json(['loggedIn' => false]);
+    }
+
+    $session = $db->fetchOne(
+        'SELECT s.display_name, s.class_id, c.name as class_name
+         FROM student_sessions s
+         LEFT JOIN classes c ON c.id = s.class_id
+         WHERE s.id = ?',
+        [$sessionId]
+    );
+
+    if (!$session) {
+        Response::json(['loggedIn' => false]);
+    }
+
+    // last_seen aktualisieren
+    $db->execute('UPDATE student_sessions SET last_seen = NOW() WHERE id = ?', [$sessionId]);
+
+    Response::json([
+        'loggedIn'    => true,
+        'sessionId'   => $sessionId,
+        'displayName' => $session['display_name'],
+        'classId'     => $session['class_id'],
+        'className'   => $session['class_name'],
+    ]);
+}
+
+Response::error('Unbekannte Aktion');