From a1434347d88728cd06f0ab7e25b17db1de00da41 Mon Sep 17 00:00:00 2001
From: Carsten Graf <reptil@hotmail.de>
Date: Fri, 6 Jun 2025 22:07:47 +0200
Subject: [PATCH] Implement DatabaseBackend, Verschiedenes

---
 .gitignore            |   1 +
 .vscode/settings.json |   3 +-
 data/rfid.html        | 164 ++---------
 data/settings.html    |  24 +-
 src/communication.h   |   4 +-
 src/databasebackend.h |  67 +++++
 src/master.cpp        |   7 +-
 src/rfid.h            | 657 +++++++++---------------------------------
 src/webserverrouter.h |   9 +-
 src/wificlass.h       |   1 +
 10 files changed, 256 insertions(+), 681 deletions(-)
 create mode 100644 src/databasebackend.h
diff --git a/.gitignore b/.gitignore
index 89cc49c..601ba02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .pio
+.env
 .vscode/.browse.c_cpp.db*
 .vscode/c_cpp_properties.json
 .vscode/launch.json
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 00bd042..994e410 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -13,7 +13,8 @@
         "regex": "cpp",
         "memory": "cpp",
         "xstring": "cpp",
-        "xutility": "cpp"
+        "xutility": "cpp",
+        "cstddef": "cpp"
     },
     "liveServer.settings.multiRootWorkspaceName": "AquaMasterMQTT"
 }
\ No newline at end of file
diff --git a/data/rfid.html b/data/rfid.html
index 93daaac..19330bb 100644
--- a/data/rfid.html
+++ b/data/rfid.html
@@ -11,6 +11,11 @@
 <body>
     <div class="container">
         <div class="header">
+            <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;">
+                <button onclick="window.location.href='/settings'" class="back-btn" style="background: #6c757d; color: white; border: none; padding: 8px 15px; border-radius: 5px; cursor: pointer; font-size: 14px; display: flex; align-items: center; gap: 5px;">
+                    ← Zurück zu Einstellungen
+                </button>
+            </div>
             <h1>🏷️ RFID Daten Eingabe</h1>
             <p>Erfassen Sie RFID-Tag Informationen</p>
         </div>
@@ -51,19 +56,10 @@
             </div>
         </form>
 
-        <div class="data-table">
-            <h3>📋 Gespeicherte Einträge</h3>
-            <div class="counter">
-                <span id="entryCounter">0 Einträge gespeichert</span>
-            </div>
-            <div id="dataEntries"></div>
-        </div>
     </div>
 
     <script>
-        // API Base URL - anpassen an Ihre Backend-URL
-        const API_BASE_URL = 'http://localhost:3000/api';
-        
+                
         // Globale Variablen
         let rfidData = [];
         let isLoading = false;
@@ -91,7 +87,7 @@
 
             try {
                 // API Aufruf zum Erstellen des Benutzers
-                const response = await fetch(`${API_BASE_URL}/users`, {
+                const response = await fetch(`/api/users`, {
                     method: 'POST',
                     headers: {
                         'Content-Type': 'application/json',
@@ -132,25 +128,7 @@
                 setLoadingState(false);
             }
         });
-
-        // Benutzer laden
-        async function loadUserData() {
-            try {
-                const response = await fetch(`${API_BASE_URL}/users?limit=50`);
-                const result = await response.json();
-
-                if (result.success) {
-                    rfidData = result.data;
-                    updateDataTable();
-                } else {
-                    console.error('Fehler beim Laden der Daten:', result.error);
-                    showErrorMessage('Fehler beim Laden der Daten');
-                }
-            } catch (error) {
-                console.error('Fehler beim Laden der Daten:', error);
-                showErrorMessage('Verbindungsfehler beim Laden der Daten');
-            }
-        }
+        
 
         function showSuccessMessage(message = 'Daten erfolgreich gespeichert!') {
             const successMsg = document.getElementById('successMessage');
@@ -185,7 +163,7 @@
             errorDiv.style.display = 'block';
             setTimeout(() => {
                 errorDiv.style.display = 'none';
-            }, 5000);
+            }, 10000);
         }
 
         function setLoadingState(loading) {
@@ -209,99 +187,6 @@
             document.getElementById('uid').focus();
         }
 
-        function updateDataTable() {
-            const container = document.getElementById('dataEntries');
-            const counter = document.getElementById('entryCounter');
-            
-            // Counter aktualisieren
-            counter.textContent = `${rfidData.length} Einträge gespeichert`;
-
-            // Tabelle leeren
-            container.innerHTML = '';
-
-            // Einträge anzeigen (neueste zuerst)
-            rfidData.forEach((entry, index) => {
-                const entryDiv = document.createElement('div');
-                entryDiv.className = 'data-entry';
-                
-                // Datum formatieren
-                const createdAt = new Date(entry.created_at).toLocaleString('de-DE', {
-                    year: 'numeric',
-                    month: '2-digit',
-                    day: '2-digit',
-                    hour: '2-digit',
-                    minute: '2-digit'
-                });
-
-                entryDiv.innerHTML = `
-                    <div style="display: flex; justify-content: space-between; align-items: flex-start;">
-                        <div style="flex: 1;">
-                            <div><strong>UID:</strong> <span>${entry.uid}</span></div>
-                            <div><strong>Name:</strong> <span>${entry.vorname} ${entry.nachname}</span></div>
-                            <div><strong>Alter:</strong> <span>${entry.alter} Jahre</span></div>
-                            <div><strong>Erfasst:</strong> <span>${createdAt}</span></div>
-                        </div>
-                        <div style="margin-left: 10px;">
-                            <button onclick="deleteUser('${entry.uid}')" 
-                                    style="background: #dc3545; color: white; border: none; padding: 5px 10px; border-radius: 5px; cursor: pointer; font-size: 12px;"
-                                    title="Benutzer löschen">
-                                🗑️
-                            </button>
-                        </div>
-                    </div>
-                `;
-                container.appendChild(entryDiv);
-            });
-
-            if (rfidData.length === 0) {
-                container.innerHTML = '<div style="text-align: center; color: #999; padding: 20px;">Noch keine Daten erfasst</div>';
-            }
-        }
-
-        // Benutzer löschen
-        async function deleteUser(uid) {
-            if (!confirm(`Möchten Sie den Benutzer mit UID "${uid}" wirklich löschen?`)) {
-                return;
-            }
-
-            try {
-                const response = await fetch(`${API_BASE_URL}/users/${encodeURIComponent(uid)}`, {
-                    method: 'DELETE'
-                });
-
-                const result = await response.json();
-
-                if (result.success) {
-                    showSuccessMessage('Benutzer erfolgreich gelöscht!');
-                    await loadUserData();
-                } else {
-                    showErrorMessage(result.error || 'Fehler beim Löschen des Benutzers');
-                }
-            } catch (error) {
-                console.error('Fehler beim Löschen:', error);
-                showErrorMessage('Verbindungsfehler beim Löschen des Benutzers');
-            }
-        }
-
-        // Server Status prüfen
-        async function checkServerStatus() {
-            try {
-                const response = await fetch(`${API_BASE_URL}/health`);
-                const result = await response.json();
-                
-                if (result.status === 'OK') {
-                    console.log('✅ Server ist erreichbar');
-                    // Daten laden
-                    await loadUserData();
-                } else {
-                    throw new Error('Server nicht verfügbar');
-                }
-            } catch (error) {
-                console.error('❌ Server nicht erreichbar:', error);
-                showErrorMessage('Server nicht erreichbar. Bitte stellen Sie sicher, dass das Backend läuft.');
-            }
-        }
-
         // Beim Laden der Seite
         window.addEventListener('load', function() {
             document.getElementById('uid').focus();
@@ -336,7 +221,7 @@
 
             try {
                 // API Aufruf zum RFID Reader
-                const response = await fetch(`${API_BASE_URL}/rfid/read`, {
+                const response = await fetch(`/api/rfid/read`, {
                     method: 'POST',
                     headers: {
                         'Content-Type': 'application/json',
@@ -372,7 +257,7 @@
                     uidInput.style.borderColor = '#dc3545';
                     setTimeout(() => {
                         uidInput.style.borderColor = '#e1e5e9';
-                    }, 3000);
+                    }, 10000);
                 }
 
             } catch (error) {
@@ -392,15 +277,24 @@
                 readBtn.innerHTML = '📡 Read UID';
             }
         }
-        document.addEventListener('DOMContentLoaded', function() {
-            const refreshBtn = document.createElement('button');
-            refreshBtn.innerHTML = '🔄 Aktualisieren';
-            refreshBtn.className = 'btn btn-secondary';
-            refreshBtn.style.cssText = 'margin-top: 10px; width: 100%;';
-            refreshBtn.onclick = loadUserData;
-            
-            document.querySelector('.data-table').appendChild(refreshBtn);
-        });
+
+    async function checkServerStatus() {
+    try {
+        const response = await fetch('/api/health');
+        const data = await response.json();
+        
+        if (!data.status || data.status !== 'connected') {
+            showErrorMessage('Server nicht verbunden. Einige Funktionen könnten eingeschränkt sein.');
+            return false;
+        }
+        
+        return true;
+    } catch (error) {
+        console.error('Server Status Check fehlgeschlagen:', error);
+        showErrorMessage('Verbindung zum Server nicht möglich.');
+        return false;
+    }
+}
     </script>
 </body>
 </html>
\ No newline at end of file
diff --git a/data/settings.html b/data/settings.html
index 2a51a1e..8da9d6f 100644
--- a/data/settings.html
+++ b/data/settings.html
@@ -1,33 +1,33 @@
 <!DOCTYPE html>
 <html lang="de">
   <head>
+    <!-- Meta Tags -->
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    
+    <!-- Stylesheets -->
     <link rel="stylesheet" href="settings.css" />
-
     <title>Ninjacross Timer - Einstellungen</title>
-
   </head>
   <body>
     <div class="container">
+      <!-- Header Section -->
       <div class="header">
         <h1>⏱️ Ninjacross Timer</h1>
         <p>Einstellungen & Konfiguration</p>
       </div>
 
       <div class="content">
+        <!-- Navigation Buttons -->
         <div class="nav-buttons">
           <a href="/" class="nav-button">🏠 Hauptseite</a>
-          <a
-            href="/settings"
-            class="nav-button"
-            style="background: #667eea; color: white; border-color: #667eea"
-            >⚙️ Einstellungen</a
-          >
+          <a href="/rfid" class="nav-button">📡 RFID</a>
         </div>
 
+        <!-- Status Message Container -->
         <div id="statusMessage" class="status-message"></div>
 
+        <!-- Date & Time Section -->
         <div class="section">
           <h2>🕐 Datum & Uhrzeit</h2>
           <div class="current-time" id="currentTime">
@@ -65,6 +65,7 @@
           </form>
         </div>
 
+        <!-- Basic Settings Section -->
         <div class="section">
           <h2>🔧 Grundeinstellungen</h2>
           <form id="settingsForm">
@@ -102,6 +103,7 @@
           </form>
         </div>
 
+        <!-- Times Management Section -->
         <div class="section">
           <h2>🏆 Zeiten verwalten</h2>
           <div class="button-group">
@@ -111,6 +113,7 @@
           </div>
         </div>
 
+        <!-- Button Configuration Section -->
         <div class="section">
           <h2>📡 Button-Konfiguration</h2>
           <div class="button-group">
@@ -136,6 +139,7 @@
           </div>
         </div>
 
+        <!-- WiFi Configuration Section -->
         <div class="section" id="wifiSection">
           <h2>📡 WLAN-Konfiguration</h2>
           <div id="wifiRestrictionNotice" class="restriction-notice" style="display: none;">
@@ -169,6 +173,7 @@
           </form>
         </div>
 
+        <!-- OTA Update Section -->
         <div class="section">
           <h2>🔄 OTA Update</h2>
           <div id="otaRestrictionNotice" class="restriction-notice" style="display: none;">
@@ -185,6 +190,7 @@
           </div>
         </div>
 
+        <!-- System Information Section -->
         <div class="section">
           <h2>ℹ️ System-Information</h2>
           <div
@@ -207,6 +213,7 @@
           </div>
         </div>
 
+        <!-- License Section -->
         <div class="section">
           <h2>🔧 Lizenz</h2>
           <form id="licenceForm">
@@ -224,6 +231,7 @@
       </div>
     </div>
 
+    <!-- JavaScript Code -->
     <script>
       let learningStep = 0;
       const learningSteps = [
diff --git a/src/communication.h b/src/communication.h
index 8350a22..141d917 100644
--- a/src/communication.h
+++ b/src/communication.h
@@ -62,11 +62,11 @@ void readButtonJSON(const char * topic, const char * payload) {
       // Button-Zuordnung prüfen und entsprechende Aktion ausführen
       if (memcmp(macBytes.data(), buttonConfigs.start1.mac, 6) == 0 && (pressType == 2)) {
         handleStart1();
-      } else if (memcmp(macBytes.data(), buttonConfigs.stop1.mac, 6) == 0 && (pressType == 2)) {
+      } else if (memcmp(macBytes.data(), buttonConfigs.stop1.mac, 6) == 0 && (pressType == 1)) {
         handleStop1();
       } else if (memcmp(macBytes.data(), buttonConfigs.start2.mac, 6) == 0 && (pressType == 2)) {
         handleStart2();
-      } else if (memcmp(macBytes.data(), buttonConfigs.stop2.mac, 6) == 0 && (pressType == 2)) {
+      } else if (memcmp(macBytes.data(), buttonConfigs.stop2.mac, 6) == 0 && (pressType == 1)) {
         handleStop2();
       }
 
diff --git a/src/databasebackend.h b/src/databasebackend.h
new file mode 100644
index 0000000..b5f9b28
--- /dev/null
+++ b/src/databasebackend.h
@@ -0,0 +1,67 @@
+#include <Arduino.h>
+#include <HTTPClient.h>
+#include "master.h"
+
+
+const char* BACKEND_SERVER = "http://db.reptilfpv.de:3000";
+const char* BACKEND_TOKEN = "a4514dc0-15f5-4299-8826-fffb3139d39c";
+
+bool backendOnline() {
+    if (WiFi.status() != WL_CONNECTED) {
+        Serial.println("No WiFi connection.");
+        return false;
+    }
+
+    HTTPClient http;
+    http.begin(String(BACKEND_SERVER) + "/api/health");
+    http.addHeader("Authorization", String("Bearer ") + BACKEND_TOKEN);
+    
+    int httpCode = http.GET();
+    
+    if (httpCode == HTTP_CODE_OK) {
+        return true;
+        Serial.println("Database server connection successful");
+    } else {
+        return false;
+        Serial.printf("Database server connection failed, error: %d\n", httpCode);
+    }
+    
+    http.end();
+}
+
+bool userExists(const String& userId) {
+    if (!backendOnline()) {
+        Serial.println("No internet connection, cannot check user existence.");
+        return false;
+    }
+
+    HTTPClient http;
+    http.begin(String(BACKEND_SERVER) + "/api/users/" + userId);
+    http.addHeader("Authorization", String("Bearer ") + BACKEND_TOKEN);
+    
+    //Post request to check if user exists
+    int httpCode = http.POST("");
+
+}
+
+void setupBackendRoutes(AsyncWebServer& server) {
+    server.on("/api/health", HTTP_GET, [](AsyncWebServerRequest *request) {
+        
+        DynamicJsonDocument doc(64);
+        doc["status"] = backendOnline() ? "connected" : "disconnected";
+        String response;
+        serializeJson(doc, response);
+        request->send(200, "application/json", response);
+    });
+
+    server.on("/api/users", HTTP_GET, [](AsyncWebServerRequest *request) {
+        if (!backendOnline()) {
+            request->send(503, "application/json", "{\"error\":\"Database not connected\"}");
+            return;
+        }
+        
+        // Handle user retrieval logic here
+    });
+
+    // Add more routes as needed
+}
diff --git a/src/master.cpp b/src/master.cpp
index db6d1ac..2b60a5b 100644
--- a/src/master.cpp
+++ b/src/master.cpp
@@ -18,14 +18,12 @@
 #include <wificlass.h>
 #include <webserverrouter.h>
 #include <communication.h>
+#include <databasebackend.h>
 
 
 const char* firmwareversion = "1.0.0"; // Version der Firmware
 
 
-
-
-
 void handleStart1() {
   if (!timerData.isRunning1 && timerData.isReady1) {
     timerData.isReady1 = false; // Setze auf "Nicht bereit" bis Stopp
@@ -232,10 +230,11 @@ void setup() {
     return;
   }
   
-  //setup external libararies
+  //setup API libararies
   setupTimeAPI(server);
   setupLicenceAPI(server);
   setupDebugAPI(server);
+  setupBackendRoutes(server);
 
 
   // Gespeicherte Daten laden
diff --git a/src/rfid.h b/src/rfid.h
index ee09ae0..ec8f76a 100644
--- a/src/rfid.h
+++ b/src/rfid.h
@@ -1,548 +1,151 @@
-#include <WiFi.h>
-#include <HTTPClient.h>
+#include <Arduino.h>
+#include <WebServer.h>
 #include <ArduinoJson.h>
 #include <SPI.h>
 #include <MFRC522.h>
-#include <ESPAsyncWebServer.h>
-#include <AsyncTCP.h>
-#include <WiFiClientSecure.h>
 
-// RFID Configuration
-#define RST_PIN         22    // Reset pin
-#define SS_PIN          21    // SDA pin
-#define SCK_PIN         18    // SCK pin
-#define MOSI_PIN        23    // MOSI pin
-#define MISO_PIN        19    // MISO pin
+// RFID Konfiguration
+#define SS_PIN 21
+#define RST_PIN 22
+MFRC522 mfrc522(SS_PIN, RST_PIN);
 
+// Webserver auf Port 80
+WebServer server(80);
 
-// PostgreSQL API Configuration
-// Replace with your database API endpoint (e.g., Supabase, Railway, Render, etc.)
-const char* DB_API_BASE_URL = "https://your-database-api.com/api";
-const char* DB_API_KEY = "YOUR_API_KEY";  // If using Supabase or similar service
+// Struktur für Benutzerdaten
+struct User {
+  String uid;
+  String vorname;
+  String nachname;
+  int alter;
+  unsigned long timestamp;
+};
 
-// Server Configuration
-MFRC522 rfid(SS_PIN, RST_PIN);
+// Array für Benutzer (max 100 Benutzer)
+User users[100];
+int userCount = 0;
 
-// HTTP clients
-HTTPClient httpClient;
-WiFiClientSecure secureClient;
+void setupRFID() {
 
-// Database table structure
+  // SPI und RFID initialisieren
+  SPI.begin();
+  mfrc522.PCD_Init();
+  
+  
+  // Gespeicherte Daten laden
+  loadUsersFromFile();
+  
+  // Route Definitionen
+  setupRoutes(AsyncWebServer& server);
+  
 
-// CORS headers
-void setCORSHeaders(AsyncWebServerResponse* response) {
-    response->addHeader("Access-Control-Allow-Origin", "*");
-    response->addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
-    response->addHeader("Access-Control-Allow-Headers", "Content-Type, Authorization, apikey");
-    response->addHeader("Access-Control-Max-Age", "86400");
 }
 
-// Initialize RFID
-void initRFID() {
-    SPI.begin(SCK_PIN, MISO_PIN, MOSI_PIN, SS_PIN);
-    rfid.PCD_Init();
-    
-    // Check if RFID reader is connected
-    byte version = rfid.PCD_ReadRegister(rfid.VersionReg);
-    if (version == 0x00 || version == 0xFF) {
-        Serial.println("WARNING: RFID reader not found!");
+
+void setupRoutes() {
+  // CORS Header für alle Anfragen
+  server.onNotFound([]() {
+    if (server.method() == HTTP_OPTIONS) {
+      server.sendHeader("Access-Control-Allow-Origin", "*");
+      server.sendHeader("Access-Control-Allow-Methods", "GET,POST,PUT,DELETE,OPTIONS");
+      server.sendHeader("Access-Control-Allow-Headers", "Content-Type");
+      server.send(200);
     } else {
-        Serial.print("RFID reader found, version: 0x");
-        Serial.println(version, HEX);
+      server.send(404, "text/plain", "Not Found");
     }
+  });
+  
+  // API: RFID UID lesen
+  server.on("/api/rfid/read", HTTP_POST, []() {
+    server.sendHeader("Access-Control-Allow-Origin", "*");
+    server.sendHeader("Content-Type", "application/json");
     
-    Serial.println("RFID Reader initialized");
-}
-
-// Initialize WiFi
-void initWiFi() {
-    WiFi.begin(ssid, password);
-    Serial.print("Connecting to WiFi");
+    String uid = readRFIDCard();
     
-    int attempts = 0;
-    while (WiFi.status() != WL_CONNECTED && attempts < 30) {
-        delay(1000);
-        Serial.print(".");
-        attempts++;
-    }
+    DynamicJsonDocument doc(200);
     
-    if (WiFi.status() == WL_CONNECTED) {
-        Serial.println();
-        Serial.print("WiFi connected! IP address: ");
-        Serial.println(WiFi.localIP());
+    if (uid != "") {
+      doc["success"] = true;
+      doc["uid"] = uid;
+      Serial.println("UID gelesen: " + uid);
     } else {
-        Serial.println();
-        Serial.println("WiFi connection failed!");
+      doc["success"] = false;
+      doc["error"] = "Keine RFID Karte gefunden";
     }
+    
+    String response;
+    serializeJson(doc, response);
+    server.send(200, "application/json", response);
+  });
+  
+  // API: Neuen Benutzer erstellen
+  server.on("/api/users", HTTP_POST, []() {
+    server.sendHeader("Access-Control-Allow-Origin", "*");
+    server.sendHeader("Content-Type", "application/json");
+    
+    DynamicJsonDocument doc(1024);
+    DeserializationError error = deserializeJson(doc, server.arg("plain"));
+    
+    if (error) {
+      DynamicJsonDocument errorDoc(200);
+      errorDoc["success"] = false;
+      errorDoc["error"] = "Ungültige JSON Daten";
+      String response;
+      serializeJson(errorDoc, response);
+      server.send(400, "application/json", response);
+      return;
+    }
+    
+    // Daten aus JSON extrahieren
+    String uid = doc["uid"].as<String>();
+    String vorname = doc["vorname"].as<String>();
+    String nachname = doc["nachname"].as<String>();
+    int alter = doc["alter"].as<int>();
+    
+    
+    // Prüfen ob UID bereits existiert
+    
+
+    
+    // Benutzer hinzufügen
+
+
+
+    // Erfolgreiche Antwort
+    DynamicJsonDocument successDoc(200);
+    successDoc["success"] = true;
+    successDoc["message"] = "Benutzer erfolgreich gespeichert";
+    String response;
+    serializeJson(successDoc, response);
+    server.send(201, "application/json", response);
+    
+    Serial.println("Neuer Benutzer: " + vorname + " " + nachname + " (UID: " + uid + ")");
+  });
 }
 
-// Test database connection
-bool testDatabaseConnection() {
-    if (WiFi.status() != WL_CONNECTED) {
-        Serial.println("WiFi not connected");
-        return false;
-    }
-    
-    HTTPClient http;
-    http.begin(DB_API_BASE_URL);
-    
-    // Add API key header if using services like Supabase
-    if (strlen(DB_API_KEY) > 0) {
-        http.addHeader("apikey", DB_API_KEY);
-        http.addHeader("Authorization", String("Bearer ") + DB_API_KEY);
-    }
-    
-    int httpResponseCode = http.GET();
-    bool success = (httpResponseCode > 0 && httpResponseCode < 400);
-    
-    if (success) {
-        Serial.println("✅ Database connection successful");
-    } else {
-        Serial.print("❌ Database connection failed. HTTP code: ");
-        Serial.println(httpResponseCode);
-        if (httpResponseCode > 0) {
-            Serial.println("Response: " + http.getString());
-        }
-    }
-    
-    http.end();
-    return success;
-}
-
-// Read RFID UID
-String readRFIDUID() {
-    // Check for new cards
-    if (!rfid.PICC_IsNewCardPresent() || !rfid.PICC_ReadCardSerial()) {
-        return "";
-    }
-    
-    String uid = "";
-    for (byte i = 0; i < rfid.uid.size; i++) {
-        if (uid.length() > 0) uid += ":";
-        if (rfid.uid.uidByte[i] < 0x10) uid += "0";
-        uid += String(rfid.uid.uidByte[i], HEX);
-    }
-    
-    uid.toUpperCase();
-    rfid.PICC_HaltA();
-    rfid.PCD_StopCrypto1();
-    
-    return uid;
-}
-
-// Make HTTP request to database API
-DynamicJsonDocument makeDBRequest(const String& method, const String& endpoint, const String& payload = "") {
-    DynamicJsonDocument response(4096);
-    
-    if (WiFi.status() != WL_CONNECTED) {
-        response["success"] = false;
-        response["error"] = "WiFi not connected";
-        return response;
-    }
-    
-    HTTPClient http;
-    String url = String(DB_API_BASE_URL) + endpoint;
-    http.begin(url);
-    
-    // Set headers
-    http.addHeader("Content-Type", "application/json");
-    if (strlen(DB_API_KEY) > 0) {
-        http.addHeader("apikey", DB_API_KEY);
-        http.addHeader("Authorization", String("Bearer ") + DB_API_KEY);
-    }
-    
-    int httpResponseCode;
-    
-    if (method == "GET") {
-        httpResponseCode = http.GET();
-    } else if (method == "POST") {
-        httpResponseCode = http.POST(payload);
-    } else if (method == "DELETE") {
-        httpResponseCode = http.sendRequest("DELETE", payload);
-    } else {
-        response["success"] = false;
-        response["error"] = "Unsupported HTTP method";
-        http.end();
-        return response;
-    }
-    
-    if (httpResponseCode > 0) {
-        String responseString = http.getString();
-        
-        if (httpResponseCode >= 200 && httpResponseCode < 300) {
-            // Parse successful response
-            DeserializationError error = deserializeJson(response, responseString);
-            if (error) {
-                response.clear();
-                response["success"] = false;
-                response["error"] = "Failed to parse response JSON";
-                response["raw_response"] = responseString;
-            } else {
-                // Add success flag if not present
-                if (!response.containsKey("success")) {
-                    response["success"] = true;
-                }
-            }
-        } else {
-            // Handle HTTP errors
-            response["success"] = false;
-            response["error"] = "HTTP Error " + String(httpResponseCode);
-            response["raw_response"] = responseString;
-        }
-    } else {
-        response["success"] = false;
-        response["error"] = "HTTP request failed: " + String(httpResponseCode);
-    }
-    
-    http.end();
-    return response;
-}
-
-// Get all users from database
-DynamicJsonDocument getAllUsers(int limit = 50) {
-    String endpoint = "/rfid_users?select=*&order=created_at.desc";
-    if (limit > 0) {
-        endpoint += "&limit=" + String(limit);
-    }
-    return makeDBRequest("GET", endpoint);
-}
-
-// Create new user in database
-DynamicJsonDocument createUser(const String& uid, const String& vorname, const String& nachname, int alter) {
-    DynamicJsonDocument payload(512);
-    payload["uid"] = uid;
-    payload["vorname"] = vorname;
-    payload["nachname"] = nachname;
-    payload["alter"] = alter;
-    
-    String payloadString;
-    serializeJson(payload, payloadString);
-    
-    return makeDBRequest("POST", "/rfid_users", payloadString);
-}
-
-// Delete user from database
-DynamicJsonDocument deleteUser(const String& uid) {
-    String endpoint = "/rfid_users?uid=eq." + uid;
-    return makeDBRequest("DELETE", endpoint);
-}
-
-// Check if user exists
-bool userExists(const String& uid) {
-    String endpoint = "/rfid_users?uid=eq." + uid + "&select=uid";
-    DynamicJsonDocument result = makeDBRequest("GET", endpoint);
-    
-    if (result["success"].as<bool>() && result.containsKey("data")) {
-        JsonArray data = result["data"].as<JsonArray>();
-        return data.size() > 0;
-    } else if (result.containsKey("uid")) {
-        // Direct response format (some APIs return object directly)
-        return true;
-    }
-    return false;
-}
-
-void setupRFID(AsyncWebServer& server) {
-    Serial.begin(115200);
-    Serial.println("\n=== ESP32 RFID Server with PostgreSQL ===");
-    
-    // Initialize components
-    initRFID();
-    
-    // Test database connection
-    delay(2000); // Wait for WiFi to stabilize
-    testDatabaseConnection();
-    
-    // Configure time for timestamps
-    configTime(0, 0, "pool.ntp.org");
-    
-    // CORS preflight handler
-    server.onNotFound([](AsyncWebServerRequest *request) {
-        if (request->method() == HTTP_OPTIONS) {
-            AsyncWebServerResponse *response = request->beginResponse(200);
-            setCORSHeaders(response);
-            request->send(response);
-        } else {
-            request->send(404, "application/json", "{\"error\":\"Not Found\"}");
-        }
-    });
-    
-    // Health check endpoint
-    server.on("/api/health", HTTP_GET, [](AsyncWebServerRequest *request) {
-        DynamicJsonDocument response(512);
-        response["status"] = "OK";
-        response["wifi_connected"] = (WiFi.status() == WL_CONNECTED);
-        response["wifi_ip"] = WiFi.localIP().toString();
-        response["free_heap"] = ESP.getFreeHeap();
-        response["rfid_status"] = "connected";
-        response["database"] = "postgresql";
-        
-        String jsonString;
-        serializeJson(response, jsonString);
-        
-        AsyncWebServerResponse *resp = request->beginResponse(200, "application/json", jsonString);
-        setCORSHeaders(resp);
-        request->send(resp);
-    });
-    
-    // Get all users
-    server.on("/api/users", HTTP_GET, [](AsyncWebServerRequest *request) {
-        Serial.println("GET /api/users - Loading users from database");
-        
-        int limit = 50;
-        if (request->hasParam("limit")) {
-            limit = request->getParam("limit")->value().toInt();
-        }
-        
-        DynamicJsonDocument dbResponse = getAllUsers(limit);
-        DynamicJsonDocument response(8192);
-        
-        if (dbResponse["success"].as<bool>()) {
-            response["success"] = true;
-            
-            // Handle different response formats
-            if (dbResponse.containsKey("data")) {
-                response["data"] = dbResponse["data"];
-                response["count"] = dbResponse["data"].as<JsonArray>().size();
-            } else {
-                // Direct array response
-                response["data"] = dbResponse.as<JsonArray>();
-                response["count"] = dbResponse.as<JsonArray>().size();
-            }
-        } else {
-            response["success"] = false;
-            response["error"] = dbResponse["error"];
-            response["data"] = JsonArray();
-            response["count"] = 0;
-        }
-        
-        String jsonString;
-        serializeJson(response, jsonString);
-        
-        AsyncWebServerResponse *resp = request->beginResponse(200, "application/json", jsonString);
-        setCORSHeaders(resp);
-        request->send(resp);
-    });
-    
-    // Create new user
-    server.on("/api/users", HTTP_POST, [](AsyncWebServerRequest *request) {
-        // This will be handled in the body handler
-    }, NULL, [](AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) {
-        // Parse JSON body
-        DynamicJsonDocument requestDoc(1024);
-        DeserializationError error = deserializeJson(requestDoc, (char*)data, len);
-        
-        DynamicJsonDocument response(1024);
-        
-        if (error) {
-            response["success"] = false;
-            response["error"] = "Invalid JSON";
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(400, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-            return;
-        }
-        
-        // Validate required fields
-        if (!requestDoc.containsKey("uid") || !requestDoc.containsKey("vorname") || 
-            !requestDoc.containsKey("nachname") || !requestDoc.containsKey("alter")) {
-            response["success"] = false;
-            response["error"] = "Missing required fields: uid, vorname, nachname, alter";
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(400, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-            return;
-        }
-        
-        String uid = requestDoc["uid"].as<String>();
-        String vorname = requestDoc["vorname"].as<String>();
-        String nachname = requestDoc["nachname"].as<String>();
-        int alter = requestDoc["alter"].as<int>();
-        
-        Serial.println("POST /api/users - Creating user: " + uid);
-        
-        // Check if user already exists
-        if (userExists(uid)) {
-            response["success"] = false;
-            response["error"] = "User with this UID already exists";
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(409, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-            return;
-        }
-        
-        // Create user in database
-        DynamicJsonDocument dbResponse = createUser(uid, vorname, nachname, alter);
-        
-        if (dbResponse["success"].as<bool>()) {
-            response["success"] = true;
-            response["message"] = "User created successfully";
-            
-            // Include user data in response
-            if (dbResponse.containsKey("data")) {
-                response["data"] = dbResponse["data"];
-            } else {
-                DynamicJsonDocument userData(512);
-                userData["uid"] = uid;
-                userData["vorname"] = vorname;
-                userData["nachname"] = nachname;
-                userData["alter"] = alter;
-                response["data"] = userData;
-            }
-            
-            Serial.println("✅ User created successfully: " + uid);
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(201, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-        } else {
-            response["success"] = false;
-            response["error"] = dbResponse["error"];
-            
-            Serial.println("❌ Failed to create user: " + dbResponse["error"].as<String>());
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(500, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-        }
-    });
-    
-    // Delete user by UID
-    server.on("/api/users/*", HTTP_DELETE, [](AsyncWebServerRequest *request) {
-        String pathInfo = request->url();
-        String uid = pathInfo.substring(pathInfo.lastIndexOf('/') + 1);
-        
-        // URL decode the UID
-        uid.replace("%3A", ":");
-        uid.toUpperCase();
-        
-        Serial.println("DELETE /api/users - Deleting user: " + uid);
-        
-        DynamicJsonDocument response(512);
-        
-        // Check if user exists
-        if (!userExists(uid)) {
-            response["success"] = false;
-            response["error"] = "User not found";
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(404, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-            return;
-        }
-        
-        // Delete user from database
-        DynamicJsonDocument dbResponse = deleteUser(uid);
-        
-        if (dbResponse["success"].as<bool>()) {
-            response["success"] = true;
-            response["message"] = "User deleted successfully";
-            
-            Serial.println("✅ User deleted successfully: " + uid);
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(200, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-        } else {
-            response["success"] = false;
-            response["error"] = dbResponse["error"];
-            
-            Serial.println("❌ Failed to delete user: " + dbResponse["error"].as<String>());
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(500, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-        }
-    });
-    
-    // Read RFID UID endpoint
-    server.on("/api/rfid/read", HTTP_POST, [](AsyncWebServerRequest *request) {
-        DynamicJsonDocument response(512);
-        
-        Serial.println("POST /api/rfid/read - Reading RFID card");
-        
-        // Try to read RFID for up to 5 seconds
-        unsigned long startTime = millis();
-        String uid = "";
-        
-        while (millis() - startTime < 5000) { // 5 second timeout
-            uid = readRFIDUID();
-            if (uid.length() > 0) {
-                break;
-            }
-            delay(100);
-        }
-        
-        if (uid.length() > 0) {
-            response["success"] = true;
-            response["uid"] = uid;
-            response["message"] = "UID read successfully";
-            
-            Serial.println("✅ RFID UID read: " + uid);
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(200, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-        } else {
-            response["success"] = false;
-            response["error"] = "No RFID card detected";
-            response["message"] = "Please place an RFID card near the reader";
-            
-            Serial.println("❌ No RFID card detected");
-            
-            String jsonString;
-            serializeJson(response, jsonString);
-            
-            AsyncWebServerResponse *resp = request->beginResponse(408, "application/json", jsonString);
-            setCORSHeaders(resp);
-            request->send(resp);
-        }
-    });
-    
-    // Handle CORS preflight for all routes
-    server.onNotFound([](AsyncWebServerRequest *request) {
-        if (request->method() == HTTP_OPTIONS) {
-            AsyncWebServerResponse *response = request->beginResponse(200);
-            setCORSHeaders(response);
-            request->send(response);
-        } else {
-            AsyncWebServerResponse *response = request->beginResponse(404, "application/json", "{\"error\":\"Not Found\"}");
-            setCORSHeaders(response);
-            request->send(response);
-        }
-    });
-    
-    // Start server
-    Serial.println("Connected to PostgreSQL database");
-    Serial.println("=====================================");
-}
+// RFID Karte lesen
+String readRFIDCard() {
+  // Prüfen ob neue Karte vorhanden
+  if (!mfrc522.PICC_IsNewCardPresent()) {
+    return "";
+  }
+  
+  // Karte auswählen
+  if (!mfrc522.PICC_ReadCardSerial()) {
+    return "";
+  }
+  
+  // UID zusammensetzen
+  String uid = "";
+  for (byte i = 0; i < mfrc522.uid.size; i++) {
+    if (i > 0) uid += ":";
+    if (mfrc522.uid.uidByte[i] < 0x10) uid += "0";
+    uid += String(mfrc522.uid.uidByte[i], HEX);
+  }
+  uid.toUpperCase();
+  
+  // Karte deaktivieren
+  mfrc522.PICC_HaltA();
+  
+  return uid;
+}
\ No newline at end of file
diff --git a/src/webserverrouter.h b/src/webserverrouter.h
index c3c1ef8..f1bf43b 100644
--- a/src/webserverrouter.h
+++ b/src/webserverrouter.h
@@ -11,10 +11,7 @@
 AsyncWebServer server(80);
 
 void setupRoutes(){
-    // Web Server Routes
-
-  // SPIFFS initialisieren
-  
+    // Web Server Routes  
 
   server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
     request->send(SPIFFS, "/index.html", "text/html");
@@ -24,6 +21,10 @@ void setupRoutes(){
     request->send(SPIFFS, "/settings.html", "text/html");
   });
 
+  server.on("/rfid", HTTP_GET, [](AsyncWebServerRequest *request) {
+        request->send(SPIFFS, "/rfid.html", "text/html");
+    });
+
   server.on("/about", HTTP_GET, [](AsyncWebServerRequest *request){
     request->send(SPIFFS, "/about.html", "text/html");
   });
diff --git a/src/wificlass.h b/src/wificlass.h
index 8eb58c0..1e95c6b 100644
--- a/src/wificlass.h
+++ b/src/wificlass.h
@@ -17,6 +17,7 @@ const char* passwordSTA = "Delfine1!";
 
 PrettyOTA      OTAUpdates;
 
+String getUniqueSSID();
 
 void setupWifi() {
 
