Merge pull request 'Refactor1' (#18) from refactor1 into dev

Reviewed-on: #18

.dockerignore

@@ -0,0 +1,14 @@
+**/node_modules
+**/dist
+**/dist-ssr
+.git
+.idea
+.vscode
+**/.env
+**/.env.*
+**/.DS_Store
+**/*.log
+docs
+pics
+icon
+no-as-a-service

.env.example

@@ -0,0 +1,10 @@
+DB_PASSWORD=
+BACKEND_URL=
+MAIL_HOST=
+MAIL_PORT=
+MAIL_USER=
+MAIL_PASSWORD=
+MAIL_SENDEES_CONTACT=
+MAIL_SENDEES=
+NAAS_URL=
+SECRET_KEY=

.gitignore

@@ -11,6 +11,8 @@ dist/
 build/
 out/
 
+docker-compose.override.yml
+
 # Environment variables
 .env
 .env.local
@@ -117,3 +119,8 @@ ToDo.txt
 
 # only in development branch
 next-env.d.ts
+
+# psd files from footage
+pics/*.psd
+
+icon/

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "no-as-a-service"]
+	path = no-as-a-service
+	url = https://github.com/hotheadhacker/no-as-a-service.git

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "semi": true,
+  "singleQuote": false,
+  "trailingComma": "all",
+  "printWidth": 80,
+  "tabWidth": 2
+}

Docs/backend_API_docs/README.md

@@ -1,366 +1,177 @@
 # Borrow System API Documentation
 
-**Frontend:** https://insta.the1s.de  
-**Backend base URL:** `https://insta.the1s.de/backend/api`
+## Overview
 
----
+The Borrow System API provides endpoints for managing items, loans, and door access for a borrowing/locker system. All endpoints require authentication via an 8-digit API key passed as a URL parameter.
 
 ## Authentication
 
-All API endpoints require **either**:
-
-### 1. Bearer Token (JWT)
-
-Send an `Authorization` header:
-
-```http
-Authorization: Bearer <JWT_TOKEN>
-```
-
-- Used for user-based access.
-- Token must be valid and not expired.
-
-### 2. API Key (for devices / machine-to-machine)
-
-Include an API key in the route as `:key` parameter:
-
-```text
-/api/.../:key/...
-```
-
-Example:
-
-```http
-GET /api/items/12345678
-```
-
-Where `12345678` is your API key.  
-The API key is validated server-side.
-
----
-
-## Common Response Codes
-
-- `200 OK` – Request was successful.
-- `401 Unauthorized` – Missing or malformed credentials.
-- `403 Forbidden` – Credentials invalid or not allowed to access this resource.
-- `404 Not Found` – Resource (e.g., loan) not found.
-- `500 Internal Server Error` – Unexpected server error.
-
----
+All requests must include a valid API key in the URL path as the `:key` parameter. API keys are 8-digit numeric strings.
 
 ## Endpoints
 
-### 1. Get All Items
+The Base URL for all endpoints is: `https://insta.the1s.de/backend/api`
 
-**GET** `/api/items/:key`
+### Get All Items
 
-Returns a list of all items.
+`GET /items/:key`
 
-#### Path Parameters
+Returns all items in the system.
 
-- `:key` – API key (8-digit number)
-
-#### Authentication
-
-- Either:
-  - Valid `Authorization: Bearer <token>`
-  - Or valid `:key` path parameter
-
-#### Request Example
-
-```http
-GET /api/items/12345678 HTTP/1.1
-Host: backend.insta.the1s.de
-Authorization: Bearer <JWT_TOKEN>
-```
-
-#### Successful Response (200)
+**Response 200:**
 
 ```json
 {
   "data": [
     {
       "id": 1,
-      "item_name": "DJI 1er Mikro",
-      "can_borrow_role": 4,
-      "inSafe": 1,
+      "item_name": "Laptop",
+      "can_borrow_role": 1,
+      "in_safe": true,
       "safe_nr": 3,
-      "door_key": "123",
-      "entry_created_at": "2025-08-19T22:02:16.000Z",
-      "entry_updated_at": "2025-08-19T22:02:16.000Z",
-      "last_borrowed_person": "alice",
+      "door_key": 101,
+      "last_borrowed_person": "jdoe",
       "currently_borrowing": null
     }
   ]
 }
 ```
 
-#### Error Response (500)
+**Response 500:**
 
 ```json
-{
-  "message": "Failed to fetch items"
-}
+{ "message": "Failed to fetch items" }
 ```
 
 ---
 
-### 2. Toggle Item Safe State
+### Change Item Safe State
 
-Toggles `in_safe` between `0` and `1` for a given item.
+`POST /change-state/:key/:itemId`
 
-**Keep in mind that when you return a loan by code, the item states are automatically updated.**
+Toggles the `in_safe` boolean state of an item.
 
-**POST** `/api/change-state/:key/:itemId`
+**URL Parameters:**
 
-#### Path Parameters
+- **key** - API key
+- **itemId** - The item's ID
 
-- `:key` – API key (8-digit number)
-- `:itemId` – Item ID (integer)
+**Response 200:** Returns on successful toggle.
 
-#### Authentication
-
-- Either Bearer token or `:key` API key.
-
-#### Request Example
-
-```http
-POST /api/change-state/12345678/42 HTTP/1.1
-Host: backend.insta.the1s.de
-```
-
-#### Successful Response (200)
+**Response 500:**
 
 ```json
-{
-  "data": {}
-}
-```
-
-_(Implementation currently only returns `{ success: true }`, so `data` may be empty.)_
-
-#### Error Response (500)
-
-```json
-{
-  "message": "Failed to update item state"
-}
+{ "message": "Failed to update item state" }
 ```
 
 ---
 
-### 3. Get Loan by Code
+### Get Loan by Code
 
-Fetch loan information by `loan_code`.
+`GET /get-loan-by-code/:key/:loan_code`
 
-**GET** `/api/get-loan-by-code/:key/:loan_code`
+Retrieves loan details by its 6-digit loan code.
 
-#### Path Parameters
+**URL Parameters:**
 
-- `:key` – API key (8-digit number)
-- `:loan_code` – Loan code (string)
+- **key** - API key
+- **loan_code** - A 6-digit numeric loan code
 
-#### Authentication
-
-- Either Bearer token or `:key` API key.
-
-#### Request Example
-
-```http
-GET /api/get-loan-by-code/12345678/12345 HTTP/1.1
-Host: backend.insta.the1s.de
-```
-
-#### Successful Response (200)
+**Response 200:**
 
 ```json
 {
   "data": {
-    "username": "john",
+    "username": "jdoe",
     "returned_date": null,
-    "take_date": "2025-01-01T10:00:00.000Z",
-    "lockers": "[1, 2, 3]"
+    "take_date": "2024-01-15T10:30:00.000Z",
+    "lockers": [1, 3]
   }
 }
 ```
 
-#### Error Response (404)
+**Response 404:**
 
 ```json
-{
-  "message": "Loan not found"
-}
+{ "message": "Loan not found" }
 ```
 
 ---
 
-### 4. Set Loan Return Date
+### Set Take Date
 
-Sets `returned_date = NOW()` on a loan and updates related items:
+`POST /set-take-date/:key/:loan_code`
 
-- `in_safe = 1`
-- `currently_borrowing = NULL`
-- `last_borrowed_person = username`
+Records when items are physically taken by setting `take_date` to the current timestamp. Updates associated items to `in_safe = false` and sets `currently_borrowing` to the loan's username.
 
-**POST** `/api/set-return-date/:key/:loan_code`
+**URL Parameters:**
 
-#### Path Parameters
+- **key** - API key
+- **loan_code** - A 6-digit numeric loan code
 
-- `:key` – API key (8-digit number)
-- `:loan_code` – Loan code (string)
+**Response 200:** Empty JSON object on success.
 
-#### Authentication
-
-- Either Bearer token or `:key` API key.
-
-#### Request Example
-
-```http
-POST /api/set-return-date/12345678/12345 HTTP/1.1
-Host: backend.insta.the1s.de
-```
-
-#### Successful Response (200)
+**Response 500:**
 
 ```json
-{
-  "data": {}
-}
+{ "message": "Loan not found or already taken" }
 ```
 
-#### Error Response (500)
-
-```json
-{
-  "message": "Failed to set return date"
-}
-```
+> **Note:** This endpoint will fail if the loan has already been taken or does not exist.
 
 ---
 
-### 5. Set Loan Take Date
+### Set Return Date
 
-Sets `take_date = NOW()` on a loan and updates related items:
+`POST /set-return-date/:key/:loan_code`
 
-- `in_safe = 0`
-- `currently_borrowing = username`
+Marks a loan as returned by setting `returned_date` to the current timestamp. Also updates all associated items to `in_safe = true`, clears `currently_borrowing`, and sets `last_borrowed_person`. Therefore, keep in mind that you must not call other endpoints that will change the safe state of an item after or before calling this endpoint, otherwise the state of the items will be inconsistent.
 
-**POST** `/api/set-take-date/:key/:loan_code`
+**URL Parameters:**
 
-#### Path Parameters
+- **key** - API key
+- **loan_code** - A 6-digit numeric loan code
 
-- `:key` – API key (8-digit number)
-- `:loan_code` – Loan code (string)
+**Response 200:** Empty JSON object on success.
 
-#### Authentication
-
-- Either Bearer token or `:key` API key.
-
-#### Request Example
-
-```http
-POST /api/set-take-date/12345678/LOAN-12345 HTTP/1.1
-Host: backend.insta.the1s.de
-```
-
-#### Successful Response (200)
+**Response 500:**
 
 ```json
-{
-  "data": {}
-}
+{ "message": "Failed to set return date" }
 ```
 
-#### Error Response (500)
-
-```json
-{
-  "message": "Failed to set take date"
-}
-```
+> **Note:** This endpoint will fail if the loan has already been returned (i.e., `returned_date` is not `NULL`).
 
 ---
 
-### 6. Open Door by Door Key
+### Open Door
 
-Looks up an item by its `door_key`, toggles `in_safe`, and returns safe information.
+`GET /open-door/:key/:doorKey`
 
-**GET** `/api/open-door/:key/:doorKey`
+Toggles the safe state of an item identified by its door key and returns the associated safe number.
 
-#### Path Parameters
+**URL Parameters:**
 
-- `:key` – API key (8-digit number)
-- `:doorKey` – Door key/token (string) used by hardware to identify the locker.
+- **key** - API key
+- **doorKey** - The door key identifier assigned to an item
 
-#### Authentication
-
-- Either Bearer token or `:key` API key.
-
-#### Request Example
-
-```http
-GET /api/open-door/12345678/123 HTTP/1.1
-Host: backend.insta.the1s.de
-```
-
-#### Successful Response (200)
+**Response 200:**
 
 ```json
 {
   "data": {
-    "safe_nr": 5,
-    "id": 42
+    "safe_nr": 3,
+    "id": 1
   }
 }
 ```
 
-#### Error Response (500)
+**Response 500:**
 
 ```json
-{
-  "message": "Failed to open door"
-}
+{ "message": "Failed to open door" }
 ```
 
----
+## Error Handling
 
-## Authentication Error Messages
-
-### Missing credentials
-
-Status: `401`
-
-```json
-{
-  "message": "Unauthorized"
-}
-```
-
-### Invalid JWT
-
-Status: `403`
-
-```json
-{
-  "message": "Present token invalid"
-}
-```
-
-### Invalid API Key
-
-Status: `403`
-
-```json
-{
-  "message": "API Key invalid"
-}
-```
-
----
-
-## Notes
-
-- All responses are JSON.
-- Time fields like `take_date` and `returned_date` are in the format returned by MySQL (usually ISO-like strings).
-- `loaned_items_id` in the database is stored as a JSON array string (e.g. `"[1,2,3]"`) and is parsed internally; clients do not interact with this field directly via current endpoints.
+All endpoints return a `500` status code for server-side failures and a JSON body with a `message` field, except for **Get Loan by Code** which returns `404` when no matching loan is found.

Docs/docker/README.md

@@ -0,0 +1,78 @@
+# Docker
+
+## Prerequisites
+
+You have created an empty `docker-compose.override.yml` file in the root directory of this repository.
+
+## Docker Network
+
+If you want to run the stack in a docker network, you need to change the `BACKEND_HOST` variable in the root `.env` file
+to `stockhome-backend`. To add a docker network, create a `docker-compose.override.yml` file in the root directory of
+this repository with the following content:
+
+```yaml
+services:
+  admin-frontend:
+    networks:
+      - proxynet
+
+  backend:
+    networks:
+      - proxynet
+
+  usr-frontend:
+    networks:
+      - proxynet
+
+  no-as-a-service:
+    networks:
+      - proxynet
+
+  mysql:
+    networks:
+      - proxynet
+
+networks:
+  proxynet:
+    external: true
+```
+
+To start off I recommend to set the `BACKEND_HOST` variable to `localhost` and start the stack without a docker network.
+After you have started the stack and everything is working, you can add a docker network.
+
+## Ports
+
+### Change Exposed Ports
+
+If you want to change the exposed ports, you can do this in the `docker-compose.yml` file like so:
+
+```yaml
+services:
+  mysql:
+    ports:
+      - "3306:3306"
+
+  backend:
+    ports:
+      - "8004:8004"
+
+  usr-frontend:
+    ports:
+      - "80:80"
+```
+
+### Remove Exposed Ports
+
+If you want to remove the exposed ports, you can do this in the `docker-compose.override.yml` file like so:
+
+```yaml
+services:
+  mysql:
+    ports: !override [ ]
+
+  backend:
+    ports: !override [ ]
+
+  usr-frontend:
+    ports: !override [ ]
+```

FrontendV2/Dockerfile

@@ -1,19 +0,0 @@
-FROM node:22-alpine AS builder
-
-WORKDIR /app
-
-COPY package.json package-lock.json ./
-RUN npm ci
-
-COPY . .
-RUN npm run build
-
-FROM nginx:alpine AS runner
-
-WORKDIR /usr/share/nginx/html
-COPY --from=builder /app/dist .
-
-COPY nginx.conf /etc/nginx/conf.d/default.conf
-
-EXPOSE 80
-CMD ["nginx", "-g", "daemon off;"]

FrontendV2/public/vite.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-shapes-icon lucide-shapes"><path d="M8.3 10a.7.7 0 0 1-.626-1.079L11.4 3a.7.7 0 0 1 1.198-.043L16.3 8.9a.7.7 0 0 1-.572 1.1Z"/><rect x="3" y="14" width="7" height="7" rx="1"/><circle cx="17.5" cy="17.5" r="3.5"/></svg>

FrontendV2/src/components/Changelog.json

@@ -1,50 +0,0 @@
-{
-    "title": "Changelog",
-    "items": [
-        {
-            "version": "v2.1.0",
-            "date": "2025-10-24",
-            "changes": [
-                {
-                    "type": "Hinzugefügt",
-                    "text": [
-                        "Neue Changelog-Komponente mit zentriertem Layout.",
-                        "Unterstützung für mehrsprachige Einträge (Englisch und Deutsch)."
-                    ]
-                },
-                {
-                    "type": "Verbessert",
-                    "text": [
-                        "Performance-Optimierungen beim Laden der Listenansichten.",
-                        "Verbesserte Barrierefreiheit durch ARIA-Attribute."
-                    ]
-                },
-                {
-                    "type": "Behoben",
-                    "text": [
-                        "Fehler bei der Datumsauswahl im Safari-Browser.",
-                        "Anzeigeprobleme bei hohen DPI-Einstellungen."
-                    ]
-                }
-            ]
-        },
-        {
-            "version": "v2.0.3",
-            "date": "2025-10-10",
-            "changes": [
-                {
-                    "type": "Geändert",
-                    "text": [
-                        "Standard-Timeout für API-Requests auf 10s erhöht."
-                    ]
-                },
-                {
-                    "type": "Sicherheit",
-                    "text": [
-                        "Abhängigkeiten aktualisiert (kritische CVEs behoben)."
-                    ]
-                }
-            ]
-        }
-    ]
-}

FrontendV2/src/components/Changelog.tsx

@@ -1,263 +0,0 @@
-import { useEffect, useRef, useState } from "react";
-
-const STORAGE_KEY = "changelog";
-
-type ChangeType =
-  | "Hinzugefügt"
-  | "Geändert"
-  | "Behoben"
-  | "Entfernt"
-  | "Verbessert"
-  | "Sicherheit"
-  | "Veraltet"
-  | string;
-
-type ChangeEntry = {
-  type: ChangeType;
-  text: string | string[]; // aus localStorage kann es eine Liste sein
-};
-
-type ChangelogItem = {
-  version?: string;
-  date: string;
-  changes: ChangeEntry[];
-};
-
-type StoredChangelog = {
-  title: string;
-  items: ChangelogItem[];
-};
-
-const typeStyles: Record<string, string> = {
-  Hinzugefügt:
-    "bg-emerald-500/15 text-emerald-300 ring-1 ring-inset ring-emerald-500/30",
-  Geändert: "bg-blue-500/15 text-blue-300 ring-1 ring-inset ring-blue-500/30",
-  Behoben: "bg-amber-500/15 text-amber-300 ring-1 ring-inset ring-amber-500/30",
-  Entfernt: "bg-rose-500/15 text-rose-300 ring-1 ring-inset ring-rose-500/30",
-  Verbessert:
-    "bg-indigo-500/15 text-indigo-300 ring-1 ring-inset ring-indigo-500/30",
-  Sicherheit: "bg-red-500/15 text-red-300 ring-1 ring-inset ring-red-500/30",
-  Veraltet: "bg-zinc-700/30 text-zinc-300 ring-1 ring-inset ring-zinc-600/40",
-};
-
-export default function Changelog() {
-  const [open, setOpen] = useState(true);
-  const [mounted, setMounted] = useState(false);
-  const [data, setData] = useState<StoredChangelog | null>(null);
-  const [error, setError] = useState<string | null>(null);
-  const cardRef = useRef<HTMLDivElement | null>(null);
-
-  useEffect(() => setMounted(true), []);
-
-  const loadFromStorage = () => {
-    try {
-      setError(null);
-      const raw =
-        typeof window !== "undefined"
-          ? localStorage.getItem(STORAGE_KEY)
-          : null;
-      if (!raw) {
-        setData(null);
-        return;
-      }
-      const parsed = JSON.parse(raw) as StoredChangelog;
-      if (!parsed || !Array.isArray(parsed.items)) {
-        throw new Error("Ungültiges Format");
-      }
-      setData(parsed);
-    } catch (e) {
-      setError("Changelog konnte nicht aus localStorage geladen werden.");
-      setData(null);
-    }
-  };
-
-  useEffect(() => {
-    loadFromStorage();
-  }, []);
-
-  useEffect(() => {
-    const onKey = (e: KeyboardEvent) => {
-      if (e.key === "Escape") setOpen(false);
-    };
-    const onClickOutside = (e: MouseEvent) => {
-      if (cardRef.current && !cardRef.current.contains(e.target as Node)) {
-        setOpen(false);
-      }
-    };
-    const onStorage = (e: StorageEvent) => {
-      if (e.key === STORAGE_KEY) loadFromStorage();
-    };
-    window.addEventListener("keydown", onKey);
-    document.addEventListener("mousedown", onClickOutside);
-    window.addEventListener("storage", onStorage);
-    return () => {
-      window.removeEventListener("keydown", onKey);
-      document.removeEventListener("mousedown", onClickOutside);
-      window.removeEventListener("storage", onStorage);
-    };
-  }, []);
-
-  if (!open) return null;
-
-  const title = data?.title ?? "Changelog";
-  const items = data?.items ?? [];
-
-  return (
-    <div className="min-h-screen bg-zinc-950 bg-[radial-gradient(60%_60%_at_50%_0%,rgba(99,102,241,0.12),rgba(24,24,27,0))] flex items-center justify-center p-6">
-      <div
-        ref={cardRef}
-        className={[
-          "relative w-full max-w-6xl transition-all duration-300 ease-out",
-          mounted
-            ? "opacity-100 translate-y-0 scale-100"
-            : "opacity-0 translate-y-1 scale-[0.99]",
-        ].join(" ")}
-        aria-live="polite"
-      >
-        {/* Gradient border wrapper */}
-        <div className="rounded-2xl p-[1px] bg-gradient-to-b from-zinc-700/60 via-zinc-700/20 to-zinc-800/60 shadow-2xl">
-          {/* Card */}
-          <div className="relative rounded-[calc(theme(borderRadius.2xl)-1px)] border border-zinc-800/70 bg-zinc-900/70 supports-[backdrop-filter]:bg-zinc-900/60 backdrop-blur-xl ring-1 ring-white/10">
-            {/* Accent top line */}
-            <div className="pointer-events-none absolute inset-x-0 top-0 h-px bg-gradient-to-r from-transparent via-indigo-500/40 to-transparent" />
-
-            {/* Close button */}
-            <button
-              aria-label="Changelog schließen"
-              onClick={() => setOpen(false)}
-              className="absolute right-3 top-3 inline-flex h-9 w-9 items-center justify-center rounded-md text-zinc-400 hover:text-zinc-100 hover:bg-zinc-800/60 focus:outline-none focus-visible:ring-2 focus-visible:ring-indigo-500/70 focus-visible:ring-offset-2 focus-visible:ring-offset-zinc-900 transition"
-            >
-              <svg
-                viewBox="0 0 24 24"
-                className="h-5 w-5"
-                fill="none"
-                stroke="currentColor"
-                strokeWidth={1.8}
-                strokeLinecap="round"
-                strokeLinejoin="round"
-              >
-                <path d="M6 6l12 12M18 6L6 18" />
-              </svg>
-            </button>
-
-            {/* Header */}
-            <header className="px-10 pt-8 pb-6 border-b border-zinc-800/70">
-              <div className="flex items-center gap-3">
-                <div className="inline-flex h-9 w-9 items-center justify-center rounded-lg bg-indigo-500/15 text-indigo-300 ring-1 ring-inset ring-indigo-500/30">
-                  <svg
-                    viewBox="0 0 24 24"
-                    className="h-5 w-5"
-                    fill="none"
-                    stroke="currentColor"
-                    strokeWidth={1.6}
-                    strokeLinecap="round"
-                    strokeLinejoin="round"
-                  >
-                    <path d="M12 3v3M12 18v3M3 12h3M18 12h3M5.6 5.6l2.1 2.1M16.3 16.3l2.1 2.1M5.6 18.4l2.1-2.1M16.3 7.7l2.1-2.1" />
-                  </svg>
-                </div>
-                <div>
-                  <h1 className="text-[30px] leading-8 font-semibold text-zinc-100 tracking-[-0.01em]">
-                    {title}
-                  </h1>
-                  <p className="text-sm text-zinc-400">
-                    Aktuelle Änderungen und Updates
-                  </p>
-                </div>
-              </div>
-            </header>
-
-            {/* Body */}
-            <div className="relative max-h-[78vh] overflow-y-auto">
-              <div className="absolute pointer-events-none inset-x-0 top-0 h-8 bg-gradient-to-b from-zinc-900/70 to-transparent" />
-              <div className="absolute pointer-events-none inset-x-0 bottom-0 h-10 bg-gradient-to-t from-zinc-900/80 to-transparent" />
-
-              {error && (
-                <div className="px-10 py-8">
-                  <div className="rounded-lg border border-red-900/40 bg-red-900/10 px-4 py-3 text-sm text-red-300">
-                    {error}
-                  </div>
-                </div>
-              )}
-
-              {!error && items.length === 0 && (
-                <div className="px-10 py-16 text-center">
-                  <p className="text-zinc-400">
-                    Kein Changelog im localStorage gefunden (Key: {STORAGE_KEY}
-                    ).
-                  </p>
-                </div>
-              )}
-
-              <ul className="divide-y divide-zinc-800/70">
-                {items.map((entry, idx) => (
-                  <li
-                    key={`${entry.version ?? entry.date}-${idx}`}
-                    className="px-10 py-8"
-                  >
-                    {/* Kopfzeile je Release */}
-                    <div className="flex flex-wrap items-baseline gap-x-4 gap-y-2">
-                      {entry.version && (
-                        <span className="inline-flex items-center rounded-md bg-gradient-to-b from-zinc-100 to-zinc-300 text-zinc-900 px-3 py-0.5 text-sm font-semibold shadow-sm">
-                          {entry.version}
-                        </span>
-                      )}
-                      <time
-                        className="text-sm text-zinc-400"
-                        dateTime={entry.date}
-                      >
-                        {new Date(entry.date).toLocaleDateString("de-DE", {
-                          year: "numeric",
-                          month: "long",
-                          day: "2-digit",
-                        })}
-                      </time>
-                    </div>
-
-                    {/* Zweispaltiges Layout: Typ links, Text rechts (mit schöner Leselänge) */}
-                    <dl
-                      role="list"
-                      className="mt-6 grid grid-cols-1 gap-x-8 gap-y-3 md:grid-cols-[max-content_1fr]"
-                    >
-                      {entry.changes.map((c, i) => (
-                        <div key={i} className="contents">
-                          <dt className="md:w-44 md:justify-end md:text-right">
-                            <span
-                              className={`inline-flex items-center rounded-md px-2 py-0.5 text-[11px] font-medium ${
-                                typeStyles[c.type] ??
-                                "bg-zinc-700/30 text-zinc-300 ring-1 ring-inset ring-zinc-600/40"
-                              }`}
-                            >
-                              {c.type}
-                            </span>
-                          </dt>
-
-                          <dd className="max-w-[74ch] text-[15px] leading-7 text-zinc-200 tracking-[0.005em]">
-                            {Array.isArray(c.text) ? (
-                              <ul className="ml-4 list-disc marker:text-zinc-500/70 space-y-1.5">
-                                {c.text.map((t, k) => (
-                                  <li key={k} className="break-words">
-                                    {t}
-                                  </li>
-                                ))}
-                              </ul>
-                            ) : (
-                              <p className="break-words">{c.text}</p>
-                            )}
-                          </dd>
-                        </div>
-                      ))}
-                    </dl>
-                  </li>
-                ))}
-              </ul>
-            </div>
-
-            {/* soft bottom glow */}
-            <div className="pointer-events-none absolute inset-x-12 -bottom-4 h-8 blur-2xl bg-indigo-600/20 rounded-full" />
-          </div>
-        </div>
-      </div>
-    </div>
-  );
-}

FrontendV2/src/pages/HomePage.tsx

@@ -1,200 +0,0 @@
-import {
-  Container,
-  Stack,
-  Text,
-  Button,
-  Input,
-  Spinner,
-  VStack,
-  Table,
-  InputGroup,
-  Span,
-} from "@chakra-ui/react";
-import { useAtom } from "jotai";
-import { getBorrowableItems } from "@/utils/Fetcher";
-import { useState } from "react";
-import MyAlert from "@/components/myChakra/MyAlert";
-import { borrowAbleItemsAtom } from "@/states/Atoms";
-import { createLoan } from "@/utils/Fetcher";
-import { Header } from "@/components/Header";
-import { useTranslation } from "react-i18next";
-
-export interface User {
-  username: string;
-  role: number;
-}
-
-export const HomePage = () => {
-  const { t } = useTranslation();
-
-  const [borrowableItems, setBorrowableItems] = useAtom(borrowAbleItemsAtom);
-  const [startDate, setStartDate] = useState("");
-  const [endDate, setEndDate] = useState("");
-  const [isLoadingA, setIsLoadingA] = useState(false);
-  const [selectedItems, setSelectedItems] = useState<number[]>([]);
-
-  const MAX_CHARACTERS = 500;
-  const [note, setNote] = useState("");
-
-  // Error handling states
-  const [isMsg, setIsMsg] = useState(false);
-  const [msgStatus, setMsgStatus] = useState<"error" | "success">("error");
-  const [msgTitle, setMsgTitle] = useState("");
-  const [msgDescription, setMsgDescription] = useState("");
-
-  const handleCheckboxChange = (itemId: number) => {
-    setSelectedItems((prevSelected) =>
-      prevSelected.includes(itemId)
-        ? prevSelected.filter((id) => id !== itemId)
-        : [...prevSelected, itemId]
-    );
-  };
-
-  return (
-    <Container className="px-6 sm:px-8 pt-10">
-      <Header />
-      {isMsg && (
-        <MyAlert
-          status={msgStatus}
-          title={msgTitle}
-          description={msgDescription}
-        />
-      )}
-      <Stack as="main">
-        <Text>{t("timezone-info")}</Text>
-        <label htmlFor="startDate">
-          <strong>
-            <Text>{t("start-date")}</Text>
-          </strong>
-        </label>
-        <Input
-          id="startDate"
-          placeholder={t("start-date")}
-          type="datetime-local"
-          value={startDate}
-          onChange={(e) => setStartDate(e.target.value)}
-        />
-        <label htmlFor="endDate">
-          <strong>
-            <Text>{t("end-date")}</Text>
-          </strong>
-        </label>
-        <Input
-          id="endDate"
-          placeholder={t("end-date")}
-          type="datetime-local"
-          value={endDate}
-          onChange={(e) => setEndDate(e.target.value)}
-        />
-        <Button
-          onClick={async () => {
-            setIsLoadingA(true);
-            if (!startDate || !endDate) {
-              setMsgStatus("error");
-              setMsgTitle(t("missing-fields"));
-              setMsgDescription(t("missing-fields-desc"));
-              setIsMsg(true);
-              setIsLoadingA(false);
-              return;
-            }
-            await getBorrowableItems(startDate, endDate).then((response) => {
-              setIsLoadingA(false);
-              if (response && response.status === "error") {
-                setMsgStatus("error");
-                setMsgTitle(response.title || t("error"));
-                setMsgDescription(response.description || t("unknown-error"));
-                setIsMsg(true);
-                return;
-              }
-              setBorrowableItems(response.data);
-              setIsMsg(false);
-            });
-          }}
-        >
-          {t("get-borrowable-items")}
-        </Button>
-        {isLoadingA && (
-          <VStack colorPalette="teal">
-            <Spinner color="colorPalette.600" />
-            <Text color="colorPalette.600">{t("loading")}</Text>
-          </VStack>
-        )}
-        {borrowableItems.length > 0 && (
-          <Table.ScrollArea borderWidth="1px" rounded="md">
-            <Table.Root size="sm" stickyHeader>
-              <Table.Header>
-                <Table.Row bg="bg.subtle">
-                  <Table.ColumnHeader></Table.ColumnHeader>
-                  <Table.ColumnHeader>{t("item")}</Table.ColumnHeader>
-                </Table.Row>
-              </Table.Header>
-
-              <Table.Body>
-                {borrowableItems.map((item) => (
-                  <Table.Row key={item.id}>
-                    <Table.Cell>
-                      <input
-                        onChange={() => handleCheckboxChange(item.id)}
-                        type="checkbox"
-                        name={item.id}
-                        id={item.id}
-                      />
-                    </Table.Cell>
-                    <Table.Cell>{item.item_name}</Table.Cell>
-                  </Table.Row>
-                ))}
-                <Table.Row>
-                  <Table.Cell colSpan={2}>
-                    <InputGroup
-                      endElement={
-                        <Span color="fg.muted" textStyle="xs">
-                          {note.length} / {MAX_CHARACTERS}
-                        </Span>
-                      }
-                    >
-                      <Input
-                        placeholder={t("optional-note")}
-                        value={note}
-                        maxLength={MAX_CHARACTERS}
-                        onChange={(e) => {
-                          setNote(
-                            e.currentTarget.value.slice(0, MAX_CHARACTERS)
-                          );
-                        }}
-                      />
-                    </InputGroup>
-                  </Table.Cell>
-                </Table.Row>
-              </Table.Body>
-            </Table.Root>
-          </Table.ScrollArea>
-        )}
-        {selectedItems.length >= 1 && (
-          <Button
-            onClick={() =>
-              createLoan(selectedItems, startDate, endDate, note).then(
-                (response) => {
-                  if (response.status === "error") {
-                    setMsgStatus("error");
-                    setMsgTitle(response.title || t("error"));
-                    setMsgDescription(
-                      response.description || t("unknown-error")
-                    );
-                    setIsMsg(true);
-                    return;
-                  }
-                  setMsgStatus("success");
-                  setMsgTitle(t("success"));
-                  setMsgDescription(t("loan-success"));
-                  setIsMsg(true);
-                }
-              )
-            }
-          >
-            {t("create-loan")}
-          </Button>
-        )}
-      </Stack>
-    </Container>
-  );
-};

FrontendV2/src/pages/LoginPage.tsx

@@ -1,121 +0,0 @@
-import { useState, useEffect } from "react";
-import MyAlert from "../components/myChakra/MyAlert";
-import { Button, Card, Field, Input, Stack } from "@chakra-ui/react";
-import { setIsLoggedInAtom, triggerLogoutAtom } from "@/states/Atoms";
-import { useAtom } from "jotai";
-import Cookies from "js-cookie";
-import { Navigate, useNavigate, useLocation } from "react-router-dom";
-import { PasswordInput } from "@/components/ui/password-input";
-import { useTranslation } from "react-i18next";
-import { Footer } from "@/components/footer/Footer";
-import { API_BASE } from "@/config/api.config";
-
-export const LoginPage = () => {
-  const { t } = useTranslation();
-
-  const [isLoggedIn, setIsLoggedIn] = useAtom(setIsLoggedInAtom);
-  const [triggerLogout, setTriggerLogout] = useAtom(triggerLogoutAtom);
-  const navigate = useNavigate();
-  const location = useLocation();
-  const from = location.state?.from?.pathname || "/";
-
-  useEffect(() => {
-    if (isLoggedIn) {
-      navigate(from, { replace: true });
-      window.location.reload(); // if deleted, the user context is not updated in time
-    }
-  }, [isLoggedIn, navigate, from]);
-
-  const loginFnc = async (username: string, password: string) => {
-    const response = await fetch(`${API_BASE}/api/users/login`, {
-      method: "POST",
-      headers: { "Content-Type": "application/json" },
-      body: JSON.stringify({ username, password }),
-    });
-
-    const data = await response.json();
-
-    if (!response.ok) {
-      return {
-        success: false,
-        message: data.message ?? t("login-failed"),
-        description: data.description ?? "",
-      };
-    }
-
-    Cookies.set("token", data.token);
-    setIsLoggedIn(true);
-    return { success: true };
-  };
-
-  const [username, setUsername] = useState("");
-  const [password, setPassword] = useState("");
-  const [isError, setIsError] = useState(false);
-  const [errorMsg, setErrorMsg] = useState("");
-  const [errorDsc, setErrorDsc] = useState("");
-
-  const handleLogin = async () => {
-    const result = await loginFnc(username, password);
-    if (!result.success) {
-      setErrorMsg(result.message);
-      setErrorDsc(result.description);
-      setIsError(true);
-      return;
-    }
-    setTriggerLogout(false);
-    navigate(from, { replace: true });
-  };
-
-  if (isLoggedIn) {
-    return <Navigate to={from} replace />;
-  }
-
-  return (
-    <div className="min-h-screen flex items-center justify-center p-4">
-      <form onSubmit={(e) => e.preventDefault()}>
-        <Card.Root maxW="sm">
-          <Card.Header>
-            <Card.Title>{t("login")}</Card.Title>
-            <Card.Description>{t("enter-credentials")}</Card.Description>
-          </Card.Header>
-          <Card.Body>
-            <Stack gap="4" w="full">
-              <Field.Root>
-                <Field.Label>{t("username")}</Field.Label>
-                <Input
-                  value={username}
-                  onChange={(e) => setUsername(e.target.value)}
-                />
-              </Field.Root>
-              <Field.Root>
-                <Field.Label>{t("password")}</Field.Label>
-                <PasswordInput
-                  value={password}
-                  onChange={(e) => setPassword(e.target.value)}
-                />
-              </Field.Root>
-            </Stack>
-          </Card.Body>
-          <Card.Footer justifyContent="flex-end">
-            {isError && (
-              <MyAlert status="error" title={errorMsg} description={errorDsc} />
-            )}
-            <Button type="submit" onClick={() => handleLogin()} variant="solid">
-              Login
-            </Button>
-          </Card.Footer>
-          <Card.Footer justifyContent="flex-end">
-            {triggerLogout && (
-              <MyAlert
-                status="success"
-                title={t("logout-success")}
-                description={t("logout-success-desc")}
-              />
-            )}
-          </Card.Footer>
-        </Card.Root>
-      </form>
-      <Footer />
-    </div>
-  );
-};

LICENSE

@@ -0,0 +1,6 @@
+Copyright (c) 2026 Theis Gaedigk
+
+All rights reserved.
+
+This source code is not to be copied, modified, or distributed in any form
+without explicit written permission from the author.

README.md

@@ -19,17 +19,21 @@ A small full‑stack system to log in, view available items, reserve them for a
 ## Contents
 
 - Frontend: [frontend/](frontend)
-  - Vite/Tailwind config: [frontend/vite.config.ts](frontend/vite.config.ts), [frontend/tailwind.config.js](frontend/tailwind.config.js)
-  - App entry: [frontend/src/main.tsx](frontend/src/main.tsx), [frontend/src/App.tsx](frontend/src/App.tsx)
-  - UI: [frontend/src/layout/Layout.tsx](frontend/src/layout/Layout.tsx), [frontend/src/components](frontend/src/components)
-  - Data/utilities: [frontend/src/utils/fetchData.ts](frontend/src/utils/fetchData.ts), [frontend/src/utils/userHandler.ts](frontend/src/utils/userHandler.ts), [frontend/src/utils/toastify.ts](frontend/src/utils/toastify.ts)
+    - Vite/Tailwind
+      config: [frontend/vite.config.ts](frontend/vite.config.ts), [frontend/tailwind.config.js](frontend/tailwind.config.js)
+    - App entry: [frontend/src/main.tsx](frontend/src/main.tsx), [frontend/src/App.tsx](frontend/src/App.tsx)
+    -
+    UI: [frontend/src/layout/Layout.tsx](frontend/src/layout/Layout.tsx), [frontend/src/components](frontend/src/components)
+    -
+    Data/utilities: [frontend/src/utils/fetchData.ts](frontend/src/utils/fetchData.ts), [frontend/src/utils/userHandler.ts](frontend/src/utils/userHandler.ts), [frontend/src/utils/toastify.ts](frontend/src/utils/toastify.ts)
 - Backend: [backend/](backend)
-  - Server: [backend/server.js](backend/server.js)
-  - Routes: [backend/routes/api.js](backend/routes/api.js), [backend/routes/apiV2.js](backend/routes/apiV2.js)
-  - DB + services: [backend/services/database.js](backend/services/database.js), [backend/services/tokenService.js](backend/services/tokenService.js)
-  - Schema/seed: [backend/scheme.sql](backend/scheme.sql)
+    - Server: [backend/server.js](backend/server.js)
+    - Routes: [backend/routes/api.js](backend/routes/api.js), [backend/routes/apiV2.js](backend/routes/apiV2.js)
+    - DB +
+      services: [backend/services/database.js](backend/services/database.js), [backend/services/tokenService.js](backend/services/tokenService.js)
+    - Schema/seed: [backend/scheme.sql](backend/scheme.sql)
 - Docs: [docs/](docs)
-  - API docs (see below): [docs/backend_API_docs/README.md](docs/backend_API_docs/README.md)
+    - API docs (see below): [docs/backend_API_docs/README.md](docs/backend_API_docs/README.md)
 
 ## Features (high‑level)
 
@@ -41,7 +45,8 @@ A small full‑stack system to log in, view available items, reserve them for a
 Key frontend utilities:
 
 - [`utils.fetchData.fetchAllData`](frontend/src/utils/fetchData.ts): loads items, loans, and user loans after login.
-- [`utils.fetchData.getBorrowableItems`](frontend/src/utils/fetchData.ts): fetches borrowable items for the selected time range.
+- [`utils.fetchData.getBorrowableItems`](frontend/src/utils/fetchData.ts): fetches borrowable items for the selected
+  time range.
 - [`utils.userHandler.createLoan`](frontend/src/utils/userHandler.ts): creates a new loan for selected items.
 - [`utils.userHandler.handleDeleteLoan`](frontend/src/utils/userHandler.ts): deletes a loan and syncs local state.
 - [`utils.toastify.myToast`](frontend/src/utils/toastify.ts): toast notifications.
@@ -54,20 +59,18 @@ UI flow (main screens):
 
 ## Development
 
-- Scripts: see [frontend/package.json](frontend/package.json) and [backend/package.json](backend/package.json)
-  - Frontend: `npm run dev`, `npm run build`, `npm run preview`, `npm run lint`
-  - Backend: `npm start`
-- Linting: ESLint configured via [frontend/eslint.config.js](frontend/eslint.config.js)
-- TypeScript configs: [frontend/tsconfig.app.json](frontend/tsconfig.app.json), [frontend/tsconfig.node.json](frontend/tsconfig.node.json)
+- The NAAS (no-as-a-service) and the mysql database are running in a docker container
+- `frontend`, `backend` and `admin` are both in a vite dev server and can be started by `npm run dev` in the root
+  directory.
 
 ## Configuration notes
 
-- Vite/Tailwind integration via [frontend/vite.config.ts](frontend/vite.config.ts) and `@tailwindcss/vite`; CSS entry uses `@import "tailwindcss"` in [frontend/src/index.css](frontend/src/index.css).
+- Vite/Tailwind integration via [frontend/vite.config.ts](frontend/vite.config.ts) and `@tailwindcss/vite`; CSS entry
+  uses `@import "tailwindcss"` in [frontend/src/index.css](frontend/src/index.css).
 - Toasts wired in [frontend/src/main.tsx](frontend/src/main.tsx) with `react-toastify`.
-- Local state is stored in `localStorage` keys: `allItems`, `allLoans`, `userLoans`, `borrowableItems`. Cross‑component updates are signaled via window events from [`utils.fetchData`](frontend/src/utils/fetchData.ts).
+- Local state is stored in `localStorage` keys: `allItems`, `allLoans`, `userLoans`, `borrowableItems`. Cross‑component
+  updates are signaled via window events from [`utils.fetchData`](frontend/src/utils/fetchData.ts).
 
 ## API documentation
 
-Refer to the dedicated API docs:
-
-`docs/backend_API_docs/README.md`
+Refer to the dedicated [API-Docs](docs/backend_API_docs/README.md)

admin/Dockerfile

@@ -1,19 +1,26 @@
-FROM node:18 as builder
+# Build context is the repo root (npm workspaces share one root package-lock.json)
+FROM node:22-alpine AS builder
 
 WORKDIR /app
 
 COPY package.json package-lock.json ./
-RUN npm ci
+COPY frontend/package.json frontend/
+COPY admin/package.json admin/
+COPY backend/package.json backend/
+RUN npm ci -w admin
 
-COPY . .
-RUN npm run build
+ARG VITE_BACKEND_URL
+ENV VITE_BACKEND_URL=$VITE_BACKEND_URL
+
+COPY admin/ admin/
+RUN npm run build -w admin
 
 FROM nginx:alpine AS runner
 
 WORKDIR /usr/share/nginx/html
-COPY --from=builder /app/dist .
+COPY --from=builder /app/admin/dist .
 
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY admin/nginx.conf /etc/nginx/conf.d/default.conf
 
 EXPOSE 80
 CMD ["nginx", "-g", "daemon off;"]

admin/nginx.conf

@@ -14,7 +14,7 @@ server {
   }
 
   location /backend/ {
-    proxy_pass http://borrow_system-backend_v2:8004/;
+    proxy_pass http://borrow-system_backend:8004/;
   }
 
   location ~* \.(?:js|mjs|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {

admin/package.json

@@ -1,7 +1,7 @@
 {
   "name": "admin",
   "private": true,
-  "version": "0.0.0",
+  "version": "1.3.2-dev",
   "type": "module",
   "scripts": {
     "dev": "vite",

admin/src/Layout/Dashboard.tsx

@@ -7,6 +7,7 @@ import UserTable from "../components/UserTable";
 import ItemTable from "../components/ItemTable";
 import LoanTable from "../components/LoanTable";
 import APIKeyTable from "@/components/APIKeyTable";
+import ServerConfig from "@/components/ServerConfig";
 import { MoveLeft } from "lucide-react";
 
 type DashboardProps = {
@@ -44,8 +45,9 @@ const Dashboard: React.FC<DashboardProps> = ({ onLogout }) => {
         viewSchliessfaecher={() => setActiveView("Schließfächer")}
         viewUser={() => setActiveView("User")}
         viewAPI={() => setActiveView("API")}
+        viewConfig={() => setActiveView("Server Konfiguration")}
       />
-      <Box flex="1" display="flex" flexDirection="column">
+      <Box flex="1" display="flex" flexDirection="column" minH={0}>
         <Flex
           as="header"
           align="center"
@@ -66,7 +68,7 @@ const Dashboard: React.FC<DashboardProps> = ({ onLogout }) => {
             </Button>
           </Flex>
         </Flex>
-        <Box as="main" flex="1" p={6}>
+        <Box as="main" flex="1" p={6} minH={0} overflow="hidden">
           {activeView === "" && (
             <Flex
               align="center"
@@ -88,6 +90,7 @@ const Dashboard: React.FC<DashboardProps> = ({ onLogout }) => {
           {activeView === "Ausleihen" && <LoanTable />}
           {activeView === "Gegenstände" && <ItemTable />}
           {activeView === "API" && <APIKeyTable />}
+          {activeView === "Server Konfiguration" && <ServerConfig />}
         </Box>
       </Box>
     </Flex>

admin/src/Layout/Login.tsx

@@ -3,6 +3,7 @@ import { useState } from "react";
 import { loginFunc } from "@/utils/loginUser";
 import MyAlert from "../components/myChakra/MyAlert";
 import { Button, Card, Field, Input, Stack } from "@chakra-ui/react";
+import { PasswordInput } from "@/components/ui/password-input";
 
 const Login: React.FC<{ onSuccess: () => void }> = ({ onSuccess }) => {
   const [username, setUsername] = useState("");
@@ -43,8 +44,7 @@ const Login: React.FC<{ onSuccess: () => void }> = ({ onSuccess }) => {
               </Field.Root>
               <Field.Root>
                 <Field.Label>password</Field.Label>
-                <Input
-                  type="password"
+                <PasswordInput
                   value={password}
                   onChange={(e) => setPassword(e.target.value)}
                 />

admin/src/Layout/Sidebar.tsx

@@ -9,6 +9,7 @@ type SidebarProps = {
   viewSchliessfaecher: () => void;
   viewUser: () => void;
   viewAPI: () => void;
+  viewConfig: () => void;
 };
 
 const Sidebar: React.FC<SidebarProps> = ({
@@ -16,6 +17,7 @@ const Sidebar: React.FC<SidebarProps> = ({
   viewGegenstaende,
   viewUser,
   viewAPI,
+  viewConfig
 }) => {
   const [info, setInfo] = useState<any>(null);
 
@@ -83,6 +85,15 @@ const Sidebar: React.FC<SidebarProps> = ({
           >
             API Keys
           </Link>
+          <Link
+            px={3}
+            py={2}
+            rounded="md"
+            _hover={{ bg: "gray.700", textDecoration: "none" }}
+            onClick={viewConfig}
+          >
+            Server Konfiguration
+          </Link>
         </VStack>
 
         <Box mt="auto" pt={8} fontSize="xs" color="gray.500">

admin/src/components/ItemTable.tsx

@@ -57,32 +57,32 @@ const ItemTable: React.FC = () => {
 
   const handleItemNameChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, item_name: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, item_name: value } : it)),
     );
   };
 
   const handleCanBorrowRoleChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, can_borrow_role: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, can_borrow_role: value } : it)),
     );
   };
 
   const handleLockerNumberChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, safe_nr: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, safe_nr: value } : it)),
     );
   };
 
   const handleDoorKeyChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, door_key: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, door_key: value } : it)),
     );
   };
 
   const setError = (
     status: "error" | "success",
     message: string,
-    description: string
+    description: string,
   ) => {
     setIsError(false);
     setErrorStatus(status);
@@ -102,7 +102,7 @@ const ItemTable: React.FC = () => {
             headers: {
               Authorization: `Bearer ${Cookies.get("token")}`,
             },
-          }
+          },
         );
         const data = await response.json();
         return data;
@@ -193,185 +193,229 @@ const ItemTable: React.FC = () => {
 
       {/* make table fill available width, like UserTable */}
       {!isLoading && (
-        <Table.Root
-          size="sm"
-          striped
-          w="100%"
-          style={{ tableLayout: "auto" }} // Spalten nach Content
-        >
-          <Table.Header>
-            <Table.Row>
-              <Table.ColumnHeader>
-                <strong>#</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Gegenstand</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Ausleih Berechtigung</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Im Schließfach</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader width="1%" whiteSpace="nowrap">
-                <strong>Schließfachnummer</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader width="1%" whiteSpace="nowrap">
-                <strong>Schlüssel</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Eintrag erstellt am</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Eintrag aktualisiert am</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>LaP *</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Dav **</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader width="1%" whiteSpace="nowrap">
-                <strong>Aktionen</strong>
-              </Table.ColumnHeader>
-            </Table.Row>
-          </Table.Header>
-          <Table.Body>
-            {items.map((item) => (
-              <Table.Row key={item.id}>
-                <Table.Cell>{item.id}</Table.Cell>
-                <Table.Cell>
-                  <Input
-                    size="sm"
-                    w="max-content"
-                    onChange={(e) =>
-                      handleItemNameChange(item.id, e.target.value)
-                    }
-                    value={item.item_name}
-                  />
-                </Table.Cell>
-                <Table.Cell>
-                  <Input
-                    size="sm"
-                    w="max-content"
-                    onChange={(e) =>
-                      handleCanBorrowRoleChange(item.id, e.target.value)
-                    }
-                    value={item.can_borrow_role}
-                  />
-                </Table.Cell>
-                <Table.Cell>
-                  <Button
-                    onClick={() =>
-                      changeSafeState(item.id).then(() => setReload(!reload))
-                    }
-                    size="xs"
-                    rounded="full"
-                    px={3}
-                    py={1}
-                    gap={2}
-                    variant="ghost"
-                    color={item.in_safe ? "green.600" : "red.600"}
-                    borderWidth="1px"
-                    borderColor={item.in_safe ? "green.300" : "red.300"}
-                    _hover={{
-                      bg: item.in_safe ? "green.50" : "red.50",
-                      borderColor: item.in_safe ? "green.400" : "red.400",
-                      transform: "translateY(-1px)",
-                      shadow: "sm",
-                    }}
-                    _active={{ transform: "translateY(0)" }}
-                    aria-label={
-                      item.in_safe ? "Mark as not in safe" : "Mark as in safe"
-                    }
-                  >
-                    <Icon
-                      as={item.in_safe ? CheckCircle2 : XCircle}
-                      boxSize={3.5}
-                      mr={2}
-                    />
-                    <Text as="span" fontSize="xs" fontWeight="semibold">
-                      {item.in_safe ? "Yes" : "No"}
-                    </Text>
-                  </Button>
-                </Table.Cell>
-                <Table.Cell>
-                  <Input
-                    size="sm"
-                    w="max-content"
-                    onChange={(e) =>
-                      handleLockerNumberChange(item.id, e.target.value)
-                    }
-                    value={item.safe_nr}
-                  />
-                </Table.Cell>
-                <Table.Cell>
-                  <Input
-                    size="sm"
-                    w="max-content"
-                    onChange={(e) =>
-                      handleDoorKeyChange(item.id, e.target.value)
-                    }
-                    value={item.door_key}
-                  />
-                </Table.Cell>
-                <Table.Cell>{formatDateTime(item.entry_created_at)}</Table.Cell>
-                <Table.Cell>{formatDateTime(item.entry_updated_at)}</Table.Cell>
-                <Table.Cell>{item.last_borrowed_person}</Table.Cell>
-                <Table.Cell>{item.currently_borrowing}</Table.Cell>
-                <Table.Cell whiteSpace="nowrap">
-                  <Button
-                    onClick={() =>
-                      handleEditItems(
-                        item.id,
-                        item.item_name,
-                        item.safe_nr,
-                        item.door_key,
-                        item.can_borrow_role
-                      ).then((response) => {
-                        if (response.success) {
-                          setError(
-                            "success",
-                            "Gegenstand erfolgreich bearbeitet!",
-                            "Gegenstand " +
-                              '"' +
-                              item.item_name +
-                              '" mit ID ' +
-                              item.id +
-                              " bearbeitet."
-                          );
-                        }
-                      })
-                    }
-                    colorPalette="teal"
-                    size="sm"
-                  >
-                    <Save />
-                  </Button>
-                  <Button
-                    onClick={() =>
-                      deleteItem(item.id).then((response) => {
-                        if (response.success) {
-                          setItems(items.filter((i) => i.id !== item.id));
-                          setError(
-                            "success",
-                            "Gegenstand gelöscht",
-                            "Der Gegenstand wurde erfolgreich gelöscht."
-                          );
-                        }
-                      })
-                    }
-                    colorPalette="red"
-                    size="sm"
-                    ml={2}
-                  >
-                    <Trash2 />
-                  </Button>
-                </Table.Cell>
+        <Table.ScrollArea flex="1" minH={0} rounded="md" mt={4}>
+          <Table.Root
+            size="sm"
+            striped
+            stickyHeader
+            css={{
+              "& [data-sticky]": {
+                position: "sticky",
+                zIndex: 1,
+                bg: "bg",
+
+                _after: {
+                  content: '""',
+                  position: "absolute",
+                  pointerEvents: "none",
+                  top: "0",
+                  bottom: "-1px",
+                  width: "32px",
+                },
+              },
+
+              "& [data-sticky=end]": {
+                _after: {
+                  insetInlineEnd: "0",
+                  translate: "100% 0",
+                  shadow: "inset 8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& [data-sticky=start]": {
+                _after: {
+                  insetInlineStart: "0",
+                  translate: "-100% 0",
+                  shadow: "inset -8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& thead tr": {
+                shadow: "0 1px 0 0 {colors.border}",
+                "&:has(th[data-sticky])": {
+                  zIndex: 2,
+                },
+              },
+            }}
+          >
+            <Table.Header>
+              <Table.Row>
+                <Table.ColumnHeader>
+                  <strong>#</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Gegenstand</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Ausleih Berechtigung</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Im Schließfach</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader width="1%" whiteSpace="nowrap">
+                  <strong>Schließfachnummer</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader width="1%" whiteSpace="nowrap">
+                  <strong>Schlüssel</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Eintrag erstellt am</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Eintrag aktualisiert am</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>LaP *</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Dav **</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader width="1%" whiteSpace="nowrap">
+                  <strong>Aktionen</strong>
+                </Table.ColumnHeader>
               </Table.Row>
-            ))}
-          </Table.Body>
-        </Table.Root>
+            </Table.Header>
+            <Table.Body>
+              {items.map((item) => (
+                <Table.Row key={item.id}>
+                  <Table.Cell>{item.id}</Table.Cell>
+                  <Table.Cell>
+                    <Input
+                      size="sm"
+                      w="max-content"
+                      onChange={(e) =>
+                        handleItemNameChange(item.id, e.target.value)
+                      }
+                      value={item.item_name}
+                    />
+                  </Table.Cell>
+                  <Table.Cell>
+                    <Input
+                      size="sm"
+                      w="max-content"
+                      onChange={(e) =>
+                        handleCanBorrowRoleChange(item.id, e.target.value)
+                      }
+                      value={item.can_borrow_role}
+                    />
+                  </Table.Cell>
+                  <Table.Cell>
+                    <Button
+                      onClick={() =>
+                        changeSafeState(item.id).then(() => setReload(!reload))
+                      }
+                      size="xs"
+                      rounded="full"
+                      px={3}
+                      py={1}
+                      gap={2}
+                      variant="ghost"
+                      color={item.in_safe ? "green.600" : "red.600"}
+                      borderWidth="1px"
+                      borderColor={item.in_safe ? "green.300" : "red.300"}
+                      _hover={{
+                        bg: item.in_safe ? "green.50" : "red.50",
+                        borderColor: item.in_safe ? "green.400" : "red.400",
+                        transform: "translateY(-1px)",
+                        shadow: "sm",
+                      }}
+                      _active={{ transform: "translateY(0)" }}
+                      aria-label={
+                        item.in_safe ? "Mark as not in safe" : "Mark as in safe"
+                      }
+                    >
+                      <Icon
+                        as={item.in_safe ? CheckCircle2 : XCircle}
+                        boxSize={3.5}
+                        mr={2}
+                      />
+                      <Text as="span" fontSize="xs" fontWeight="semibold">
+                        {item.in_safe ? "Yes" : "No"}
+                      </Text>
+                    </Button>
+                  </Table.Cell>
+                  <Table.Cell>
+                    <Input
+                      size="sm"
+                      w="max-content"
+                      onChange={(e) =>
+                        handleLockerNumberChange(item.id, e.target.value)
+                      }
+                      value={item.safe_nr}
+                    />
+                  </Table.Cell>
+                  <Table.Cell>
+                    <Input
+                      size="sm"
+                      w="max-content"
+                      onChange={(e) =>
+                        handleDoorKeyChange(item.id, e.target.value)
+                      }
+                      value={item.door_key}
+                    />
+                  </Table.Cell>
+                  <Table.Cell>
+                    {formatDateTime(item.entry_created_at)}
+                  </Table.Cell>
+                  <Table.Cell>
+                    {formatDateTime(item.entry_updated_at)}
+                  </Table.Cell>
+                  <Table.Cell>{item.last_borrowed_person}</Table.Cell>
+                  <Table.Cell>{item.currently_borrowing}</Table.Cell>
+                  <Table.Cell whiteSpace="nowrap">
+                    <Button
+                      onClick={() =>
+                        handleEditItems(
+                          item.id,
+                          item.item_name,
+                          item.safe_nr,
+                          item.door_key,
+                          item.can_borrow_role,
+                        ).then((response) => {
+                          if (response.success) {
+                            setError(
+                              "success",
+                              "Gegenstand erfolgreich bearbeitet!",
+                              "Gegenstand " +
+                                '"' +
+                                item.item_name +
+                                '" mit ID ' +
+                                item.id +
+                                " bearbeitet.",
+                            );
+                          }
+                        })
+                      }
+                      colorPalette="teal"
+                      size="sm"
+                    >
+                      <Save />
+                    </Button>
+                    <Button
+                      onClick={() =>
+                        deleteItem(item.id).then((response) => {
+                          if (response.success) {
+                            setItems(items.filter((i) => i.id !== item.id));
+                            setError(
+                              "success",
+                              "Gegenstand gelöscht",
+                              "Der Gegenstand wurde erfolgreich gelöscht.",
+                            );
+                          }
+                        })
+                      }
+                      colorPalette="red"
+                      size="sm"
+                      ml={2}
+                    >
+                      <Trash2 />
+                    </Button>
+                  </Table.Cell>
+                </Table.Row>
+              ))}
+            </Table.Body>
+          </Table.Root>
+        </Table.ScrollArea>
       )}
       <Text>* LaP = Letzte ausleihende Person</Text>
       <Text>** Dav = Derzeit ausgeliehen von</Text>

admin/src/components/LoanTable.tsx

@@ -1,5 +1,6 @@
 import React from "react";
 import {
+  Box,
   Table,
   Spinner,
   Text,
@@ -31,7 +32,7 @@ const LoanTable: React.FC = () => {
   const setError = (
     status: "error" | "success",
     message: string,
-    description: string
+    description: string,
   ) => {
     setIsError(false);
     setErrorStatus(status);
@@ -65,7 +66,7 @@ const LoanTable: React.FC = () => {
             headers: {
               Authorization: `Bearer ${Cookies.get("token")}`,
             },
-          }
+          },
         );
         const data = await response.json();
         return data;
@@ -83,7 +84,7 @@ const LoanTable: React.FC = () => {
   }, [reload]);
 
   return (
-    <>
+    <Box h="full" display="flex" flexDirection="column" minH={0}>
       {/* Action toolbar */}
       <HStack
         mb={4}
@@ -131,86 +132,131 @@ const LoanTable: React.FC = () => {
         </VStack>
       )}
       {!isLoading && (
-        <Table.Root size="sm" striped>
-          <Table.Header>
-            <Table.Row>
-              <Table.ColumnHeader>
-                <strong>#</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Besitzer</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Ausleih code</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Startdatum</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Enddatum</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Ausleihdatum</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Rückgabedatum</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Erstellt am</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Ausgeliehene Artikel</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Notiz</strong>
-              </Table.ColumnHeader>
-              <Table.ColumnHeader>
-                <strong>Aktionen</strong>
-              </Table.ColumnHeader>
-            </Table.Row>
-          </Table.Header>
-          <Table.Body>
-            {items.map((item) => (
-              <Table.Row color={item.deleted ? "red" : "white"} key={item.id}>
-                <Table.Cell>{item.id}</Table.Cell>
-                <Table.Cell>{item.username}</Table.Cell>
-                <Table.Cell>
-                  <Code>{item.loan_code}</Code>
-                </Table.Cell>
-                <Table.Cell>{formatDateTime(item.start_date)}</Table.Cell>
-                <Table.Cell>{formatDateTime(item.end_date)}</Table.Cell>
-                <Table.Cell>{formatDateTime(item.take_date)}</Table.Cell>
-                <Table.Cell>{formatDateTime(item.returned_date)}</Table.Cell>
-                <Table.Cell>{formatDateTime(item.created_at)}</Table.Cell>
-                <Table.Cell>{item.loaned_items_name.join(", ")}</Table.Cell>
-                <Table.Cell>{item.note}</Table.Cell>
-                <Table.Cell>
-                  <Button
-                    onClick={() =>
-                      deleteLoan(item.id).then((response) => {
-                        if (response.success) {
-                          setItems(items.filter((i) => i.id !== item.id));
-                          setError(
-                            "success",
-                            "Loan deleted",
-                            "The loan has been successfully deleted."
-                          );
-                        }
-                      })
-                    }
-                    colorPalette="red"
-                    size="sm"
-                    ml={2}
-                  >
-                    <Trash2 />
-                  </Button>
-                </Table.Cell>
+        <Table.ScrollArea flex="1" minH={0} rounded="md" mt={4}>
+          <Table.Root
+            size="sm"
+            striped
+            stickyHeader
+            css={{
+              "& [data-sticky]": {
+                position: "sticky",
+                zIndex: 1,
+                bg: "bg",
+
+                _after: {
+                  content: '""',
+                  position: "absolute",
+                  pointerEvents: "none",
+                  top: "0",
+                  bottom: "-1px",
+                  width: "32px",
+                },
+              },
+
+              "& [data-sticky=end]": {
+                _after: {
+                  insetInlineEnd: "0",
+                  translate: "100% 0",
+                  shadow: "inset 8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& [data-sticky=start]": {
+                _after: {
+                  insetInlineStart: "0",
+                  translate: "-100% 0",
+                  shadow: "inset -8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& thead tr": {
+                shadow: "0 1px 0 0 {colors.border}",
+                "&:has(th[data-sticky])": {
+                  zIndex: 2,
+                },
+              },
+            }}
+          >
+            <Table.Header>
+              <Table.Row>
+                <Table.ColumnHeader>
+                  <strong>#</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Besitzer</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Ausleihcode</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Startdatum</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Enddatum</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Ausleihdatum</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Rückgabedatum</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Erstellt am</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Ausgeliehene Artikel</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Notiz</strong>
+                </Table.ColumnHeader>
+                <Table.ColumnHeader>
+                  <strong>Aktionen</strong>
+                </Table.ColumnHeader>
               </Table.Row>
-            ))}
-          </Table.Body>
-        </Table.Root>
+            </Table.Header>
+            <Table.Body>
+              {items.map((item) => (
+                <Table.Row color={item.deleted ? "red" : "white"} key={item.id}>
+                  <Table.Cell>{item.id}</Table.Cell>
+                  <Table.Cell>{item.username}</Table.Cell>
+                  <Table.Cell>
+                    <Code>{item.loan_code}</Code>
+                  </Table.Cell>
+                  <Table.Cell>{formatDateTime(item.start_date)}</Table.Cell>
+                  <Table.Cell>{formatDateTime(item.end_date)}</Table.Cell>
+                  <Table.Cell>{formatDateTime(item.take_date)}</Table.Cell>
+                  <Table.Cell>{formatDateTime(item.returned_date)}</Table.Cell>
+                  <Table.Cell>{formatDateTime(item.created_at)}</Table.Cell>
+                  <Table.Cell>{item.loaned_items_name.join(", ")}</Table.Cell>
+                  <Table.Cell>{item.note}</Table.Cell>
+                  <Table.Cell>
+                    <Button
+                      onClick={() =>
+                        deleteLoan(item.id).then((response) => {
+                          if (response.success) {
+                            setItems(items.filter((i) => i.id !== item.id));
+                            setError(
+                              "success",
+                              "Loan deleted",
+                              "The loan has been successfully deleted.",
+                            );
+                          }
+                        })
+                      }
+                      colorPalette="red"
+                      size="sm"
+                      ml={2}
+                    >
+                      <Trash2 />
+                    </Button>
+                  </Table.Cell>
+                </Table.Row>
+              ))}
+            </Table.Body>
+          </Table.Root>
+        </Table.ScrollArea>
       )}
-    </>
+    </Box>
   );
 };
 

admin/src/components/ServerConfig.tsx

@@ -0,0 +1,175 @@
+import React from "react";
+import {
+  Table,
+  Spinner,
+  Text,
+  VStack,
+  Heading,
+  Switch,
+} from "@chakra-ui/react";
+import MyAlert from "./myChakra/MyAlert";
+import Cookies from "js-cookie";
+import { useState, useEffect } from "react";
+import { formatDateTime } from "@/utils/userFuncs";
+import { API_BASE } from "@/config/api.config";
+
+type Items = {
+  id: number;
+  function_name: string;
+  active: boolean;
+  entry_created_at: string;
+  updated_at: string | null;
+};
+
+const ServerConfig: React.FC = () => {
+  const [items, setItems] = useState<Items[]>([]);
+  const [errorStatus, setErrorStatus] = useState<"error" | "success">("error");
+  const [errorMessage, setErrorMessage] = useState("");
+  const [errorDsc, setErrorDsc] = useState("");
+  const [isError, setIsError] = useState(false);
+  const [isLoading, setIsLoading] = useState(false);
+  const [reload, setReload] = useState(false);
+
+  const handleSwitchChange = async (id: number, newState: boolean) => {
+    try {
+      const response = await fetch(
+        `${API_BASE}/api/admin/server-config/update?functionName=${encodeURIComponent(
+          items.find((item) => item.id === id)?.function_name || "",
+        )}&active=${newState}`,
+        {
+          method: "POST",
+          headers: {
+            Authorization: `Bearer ${Cookies.get("token")}`,
+          },
+        },
+      );
+      if (response.ok) {
+        setReload((prev) => !prev);
+        setError(
+          "success",
+          "Status updated",
+          "The function status was updated successfully.",
+        );
+      } else {
+        setError(
+          "error",
+          "Failed to update status",
+          "There is an error updating the function status.",
+        );
+      }
+    } catch (error) {
+      setError(
+        "error",
+        "Failed to update status",
+        "There is an error updating the function status.",
+      );
+    }
+  };
+
+  const setError = (
+    status: "error" | "success",
+    message: string,
+    description: string,
+  ) => {
+    setIsError(false);
+    setErrorStatus(status);
+    setErrorMessage(message);
+    setErrorDsc(description);
+    setIsError(true);
+  };
+
+  useEffect(() => {
+    const fetchData = async () => {
+      setIsLoading(true);
+      try {
+        const response = await fetch(
+          `${API_BASE}/api/admin/server-config/all`,
+          {
+            method: "GET",
+            headers: {
+              Authorization: `Bearer ${Cookies.get("token")}`,
+            },
+          },
+        );
+        const data = await response.json();
+        return data.data;
+      } catch (error) {
+        setError("error", "Failed to fetch items", "There is an error");
+      } finally {
+        setIsLoading(false);
+      }
+    };
+    fetchData().then((data) => {
+      if (Array.isArray(data)) {
+        setItems(data);
+      }
+    });
+  }, [reload]);
+
+  return (
+    <>
+      <Heading marginBottom={4} size="2xl">
+        Server Konfiguration
+      </Heading>
+      {isError && (
+        <MyAlert
+          status={errorStatus}
+          description={errorDsc}
+          title={errorMessage}
+        />
+      )}
+      {isLoading && (
+        <VStack colorPalette="teal">
+          <Spinner color="colorPalette.600" />
+          <Text color="colorPalette.600">Loading...</Text>
+        </VStack>
+      )}
+
+      <Table.Root size="sm" striped w="100%" style={{ tableLayout: "auto" }}>
+        <Table.Header>
+          <Table.Row>
+            <Table.ColumnHeader width="1%" whiteSpace="nowrap">
+              <strong>#</strong>
+            </Table.ColumnHeader>
+            <Table.ColumnHeader>
+              <strong>Service Name</strong>
+            </Table.ColumnHeader>
+            <Table.ColumnHeader>
+              <strong>Toggle</strong>
+            </Table.ColumnHeader>
+            <Table.ColumnHeader>
+              <strong>Eintrag erstellt am</strong>
+            </Table.ColumnHeader>
+          </Table.Row>
+        </Table.Header>
+        <Table.Body>
+          {items.map((item) => (
+            <Table.Row key={item.id}>
+              <Table.Cell whiteSpace="nowrap">{item.id}</Table.Cell>
+              <Table.Cell fontFamily="mono">{item.function_name}</Table.Cell>
+              <Table.Cell>
+                <Switch.Root
+                  checked={item.active}
+                  onCheckedChange={() =>
+                    handleSwitchChange(item.id, !item.active)
+                  }
+                >
+                  <Switch.HiddenInput />
+                  <Switch.Control>
+                    <Switch.Thumb />
+                  </Switch.Control>
+                  <Switch.Label />
+                </Switch.Root>
+              </Table.Cell>
+              <Table.Cell whiteSpace="nowrap">
+                {formatDateTime(item.entry_created_at)}
+              </Table.Cell>
+            </Table.Row>
+          ))}
+        </Table.Body>
+      </Table.Root>
+    </>
+  );
+};
+
+export default ServerConfig;

admin/tsconfig.app.json

@@ -1,10 +1,11 @@
 {
   "compilerOptions": {
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
-    "target": "ESNext",
+    "target": "ES2022",
     "useDefineForClassFields": true,
     "lib": ["ES2022", "DOM", "DOM.Iterable"],
     "module": "ESNext",
+    "types": ["vite/client"],
     "skipLibCheck": true,
 
     /* Bundler mode */
@@ -23,14 +24,10 @@
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true,
 
-    /* Chakra / Pfad Aliases */
-    "baseUrl": ".",
+    /* Path aliases */
     "paths": {
       "@/*": ["./src/*"]
-    },
-
-    "forceConsistentCasingInFileNames": true,
-    "ignoreDeprecations": "5.0"
+    }
   },
   "include": ["src"]
 }

backend/Dockerfile

@@ -0,0 +1,28 @@
+# Build context is the repo root (npm workspaces share one root package-lock.json)
+FROM node:20-alpine
+
+ENV NODE_ENV=production
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+COPY frontend/package.json frontend/
+COPY admin/package.json admin/
+COPY backend/package.json backend/
+RUN npm ci -w backend --omit=dev
+
+COPY backend/ backend/
+
+# Generate info.json from the workspace package.json versions, without the "-dev" suffix
+RUN node -e ' \
+  const fs = require("fs"); \
+  const v = (p) => "v" + JSON.parse(fs.readFileSync(p + "/package.json")).version.replace(/-dev$/, ""); \
+  fs.writeFileSync("backend/info.json", JSON.stringify({ \
+    "backend-info": { version: v("backend") }, \
+    "frontend-info": { version: v("frontend") }, \
+    "admin-panel-info": { version: v("admin") } \
+  }, null, 4)); \
+'
+
+WORKDIR /app/backend
+EXPOSE 8004
+CMD ["npm", "start"]

backend/info.json

@@ -0,0 +1,11 @@
+{
+    "backend-info": {
+        "version": "v2.2 (dev)"
+    },
+    "frontend-info": {
+        "version": "v2.2 (dev)"
+    },
+    "admin-panel-info": {
+        "version": "v1.4 (dev)"
+    }
+}

backend/package.json

@@ -1,10 +1,11 @@
 {
-  "name": "backendv2",
-  "version": "1.0.0",
+  "name": "backend",
+  "version": "2.1.1-dev",
+  "private": true,
   "main": "server.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "node server.js"
+    "dev": "node --watch server.js",
+    "start": "NODE_ENV=production node server.js"
   },
   "keywords": [],
   "author": "",
@@ -15,8 +16,9 @@
     "dotenv": "^17.2.1",
     "ejs": "^3.1.10",
     "express": "^5.1.0",
+    "express-rate-limit": "^8.4.1",
     "jose": "^6.0.12",
     "mysql2": "^3.14.3",
-    "nodemailer": "^7.0.6"
+    "nodemailer": "^10.2.1"
   }
 }

backend/routes/admin/database/loanDataMgmt.database.js

@@ -12,12 +12,15 @@ const pool = mysql
   .promise();
 
 export const getAllLoans = async () => {
-  const [rows] = await pool.query("SELECT * FROM loans");
+  const [rows] = await pool.query("SELECT * FROM loans WHERE deleted_admin = 0;");
   return { success: true, data: rows };
 };
 
 export const deleteLoanById = async (loanId) => {
-  const [result] = await pool.query("DELETE FROM loans WHERE id = ?", [loanId]);
+  const [result] = await pool.query(
+    "UPDATE loans SET deleted = true, deleted_admin = true WHERE id = ?",
+    [loanId],
+  );
   if (result.affectedRows > 0) return { success: true };
   return { success: false };
 };

backend/routes/admin/database/serverConfMgmt.database.js

@@ -0,0 +1,26 @@
+import mysql from "mysql2";
+import dotenv from "dotenv";
+dotenv.config();
+
+const pool = mysql
+  .createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_NAME,
+  })
+  .promise();
+
+export const getAllFunctions = async () => {
+  const [rows] = await pool.query("SELECT * FROM functions");
+  return { success: true, data: rows };
+};
+
+export const updateFunctionStatus = async (functionName, active) => {
+  const [result] = await pool.query(
+    "UPDATE functions SET active = ? WHERE function_name = ?",
+    [active, functionName],
+  );
+  if (result.affectedRows > 0) return { success: true };
+  return { success: false };
+};

backend/routes/admin/serverConfMgmt.route.js

@@ -0,0 +1,50 @@
+import express from "express";
+import { authenticateAdmin } from "../../services/authentication.js";
+const router = express.Router();
+import dotenv from "dotenv";
+dotenv.config();
+
+// database funcs import
+import {
+  getAllFunctions,
+  updateFunctionStatus,
+} from "./database/serverConfMgmt.database.js";
+
+// Route to get all functions and their statuses
+router.get("/all", async (req, res) => {
+  try {
+    const result = await getAllFunctions();
+    if (result.success) {
+      res.status(200).json({ data: result.data });
+    } else {
+      res.status(500).json({ message: "Failed to fetch functions" });
+    }
+  } catch (error) {
+    res
+      .status(500)
+      .json({ message: "An error occurred", error: error.message });
+  }
+});
+
+// Route to update the status of a function
+router.post("/update", async (req, res) => {
+  const functionName = req.query.functionName;
+  let active = req.query.active;
+
+  if (active === "false") {
+    active = 0;
+  } else if (active === "true") {
+    active = 1;
+  } else {
+    res.status(406).json({ message: "Got unexpected format" });
+  }
+
+  const result = await updateFunctionStatus(functionName, active);
+  if (result.success) {
+    res.status(200).json({ message: "Function status updated successfully" });
+  } else {
+    res.status(500).json({ message: "Failed to update function status" });
+  }
+});
+
+export default router;

backend/routes/api/api.database.js

@@ -22,7 +22,7 @@ export const getItemsFromDatabaseV2 = async () => {
 export const getLoanByCodeV2 = async (loan_code) => {
   const [result] = await pool.query(
     "SELECT username, returned_date, take_date, lockers FROM loans WHERE loan_code = ?;",
-    [loan_code]
+    [loan_code],
   );
   if (result.length > 0) {
     return { success: true, data: result[0] };
@@ -33,7 +33,7 @@ export const getLoanByCodeV2 = async (loan_code) => {
 export const changeInSafeStateV2 = async (itemId) => {
   const [result] = await pool.query(
     "UPDATE items SET in_safe = NOT in_safe WHERE id = ?",
-    [itemId]
+    [itemId],
   );
   if (result.affectedRows > 0) {
     return { success: true };
@@ -42,50 +42,62 @@ export const changeInSafeStateV2 = async (itemId) => {
 };
 
 export const setReturnDateV2 = async (loanCode) => {
-  const [items] = await pool.query(
-    "SELECT loaned_items_id FROM loans WHERE loan_code = ?",
-    [loanCode]
-  );
+  try {
+    const [items] = await pool.query(
+      "SELECT loaned_items_id, username FROM loans WHERE loan_code = ?",
+      [loanCode],
+    );
 
-  const [owner] = await pool.query(
-    "SELECT username FROM loans WHERE loan_code = ?",
-    [loanCode]
-  );
+    if (items.length === 0)
+      return { success: false, message: "No items found for loan" };
 
-  if (items.length === 0) return { success: false };
+    const itemIds = Array.isArray(items[0].loaned_items_id)
+      ? items[0].loaned_items_id
+      : JSON.parse(items[0].loaned_items_id || "[]");
 
-  const itemIds = Array.isArray(items[0].loaned_items_id)
-    ? items[0].loaned_items_id
-    : JSON.parse(items[0].loaned_items_id || "[]");
+    const [result] = await pool.query(
+      "UPDATE loans SET returned_date = NOW() WHERE loan_code = ? AND returned_date IS NULL",
+      [loanCode],
+    );
 
-  const [setItemStates] = await pool.query(
-    "UPDATE items SET in_safe = 1, currently_borrowing = NULL, last_borrowed_person = (?) WHERE id IN (?)",
-    [owner[0].username, itemIds]
-  );
+    if (result.affectedRows === 0) return { success: false };
 
-  const [result] = await pool.query(
-    "UPDATE loans SET returned_date = NOW() WHERE loan_code = ?",
-    [loanCode]
-  );
+    if (itemIds.length > 0) {
+      await pool.query(
+        "UPDATE items SET in_safe = 1, currently_borrowing = NULL, last_borrowed_person = ? WHERE id IN (?)",
+        [items[0].username, itemIds],
+      );
+    }
 
-  if (result.affectedRows > 0 && setItemStates.affectedRows > 0) {
-    return { success: true };
+    return { success: true, data: { returned: true } };
+  } catch (error) {
+    console.error("setReturnDateV2 error:", error);
+    return { success: false, message: "Failed to set return date" };
   }
-  return { success: false };
 };
 
 export const setTakeDateV2 = async (loanCode) => {
+  const [isTaken] = await pool.query(
+    "SELECT take_date FROM loans WHERE loan_code = ?",
+    [loanCode],
+  );
+
+  if (isTaken.length === 0 || isTaken[0].take_date !== null) {
+    return { success: false, message: "Loan not found or already taken" };
+  }
+
   const [items] = await pool.query(
     "SELECT loaned_items_id FROM loans WHERE loan_code = ?",
-    [loanCode]
+    [loanCode],
   );
 
   const [owner] = await pool.query(
     "SELECT username FROM loans WHERE loan_code = ?",
-    [loanCode]
+    [loanCode],
   );
 
-  if (items.length === 0) return { success: false };
+  if (items.length === 0)
+    return { success: false, message: "No items found for loan" };
 
   const itemIds = Array.isArray(items[0].loaned_items_id)
     ? items[0].loaned_items_id
@@ -93,37 +105,29 @@ export const setTakeDateV2 = async (loanCode) => {
 
   const [setItemStates] = await pool.query(
     "UPDATE items SET in_safe = 0, currently_borrowing = (?) WHERE id IN (?)",
-    [owner[0].username, itemIds]
+    [owner[0].username, itemIds],
   );
 
   const [result] = await pool.query(
-    "UPDATE loans SET take_date = NOW() WHERE loan_code = ?",
-    [loanCode]
+    "UPDATE loans SET take_date = NOW() WHERE loan_code = ? AND take_date IS NULL",
+    [loanCode],
   );
 
   if (result.affectedRows > 0 && setItemStates.affectedRows > 0) {
     return { success: true };
   }
-  return { success: false };
-};
-
-export const getAllLoansV2 = async () => {
-  const [result] = await pool.query("SELECT * FROM loans;");
-  if (result.length > 0) {
-    return { success: true, data: result };
-  }
-  return { success: false };
+  return { message: "Failed to set take date", success: false };
 };
 
 export const openDoor = async (doorKey) => {
   const [result] = await pool.query(
     "SELECT safe_nr, id FROM items WHERE door_key = ?;",
-    [doorKey]
+    [doorKey],
   );
   if (result.length > 0) {
     const [changeItemSate] = await pool.query(
       "UPDATE items SET in_safe = NOT in_safe WHERE id = ?",
-      [result[0].id]
+      [result[0].id],
     );
     if (changeItemSate.affectedRows > 0) {
       return { success: true, data: result[0] };

backend/routes/api/api.route.js

@@ -1,9 +1,12 @@
 import express from "express";
 import { authenticate } from "../../services/authentication.js";
+import { checkIfServiceIsActive } from "../../services/functions.js";
 const router = express.Router();
 import dotenv from "dotenv";
 dotenv.config();
 
+const loan_service = "Loan Service";
+
 import {
   getItemsFromDatabaseV2,
   changeInSafeStateV2,
@@ -39,6 +42,7 @@ router.post("/change-state/:key/:itemId", authenticate, async (req, res) => {
 router.get(
   "/get-loan-by-code/:key/:loan_code",
   authenticate,
+  checkIfServiceIsActive(loan_service),
   async (req, res) => {
     const loan_code = req.params.loan_code;
     const result = await getLoanByCodeV2(loan_code);
@@ -47,37 +51,39 @@ router.get(
     } else {
       res.status(404).json({ message: "Loan not found" });
     }
-  }
+  },
 );
 
 // Route for API to set the return date by the loan code
 router.post(
   "/set-return-date/:key/:loan_code",
   authenticate,
+  checkIfServiceIsActive(loan_service),
   async (req, res) => {
     const loanCode = req.params.loan_code;
     const result = await setReturnDateV2(loanCode);
     if (result.success) {
-      res.status(200).json({ data: result.data });
+      res.status(200).json({});
     } else {
       res.status(500).json({ message: "Failed to set return date" });
     }
-  }
+  },
 );
 
 // Route for API to set the take away date by the loan code
 router.post(
   "/set-take-date/:key/:loan_code",
   authenticate,
+  checkIfServiceIsActive(loan_service),
   async (req, res) => {
     const loanCode = req.params.loan_code;
     const result = await setTakeDateV2(loanCode);
     if (result.success) {
-      res.status(200).json({ data: result.data });
+      res.status(200).json({});
     } else {
-      res.status(500).json({ message: "Failed to set take date" });
+      res.status(500).json({ message: result.message });
     }
-  }
+  },
 );
 
 // Route for API to open a door

backend/routes/app/database/loansMgmt.database.js

@@ -63,11 +63,9 @@ export const createLoanInDatabase = async (
       };
     }
 
-    const itemNames = itemIds
-      .map(
-        (id) => itemsRows.find((r) => Number(r.id) === Number(id))?.item_name,
-      )
-      .filter(Boolean);
+    const itemNames = itemIds.map(
+      (id) => itemsRows.find((r) => Number(r.id) === Number(id)).item_name,
+    );
 
     // Build lockers array (unique, only 2-digit numbers from safe_nr)
     const lockers = [
@@ -109,27 +107,24 @@ export const createLoanInDatabase = async (
       };
     }
 
-    // Generate unique loan_code (retry a few times)
-    let loanCode = null;
-    for (let i = 0; i < 6; i++) {
-      const candidate = Math.floor(100000 + Math.random() * 899999); // 6 digits
-      const [exists] = await conn.query(
-        "SELECT 1 FROM loans WHERE loan_code = ? LIMIT 1",
+    let index = false;
+    let candidate;
+    let loanCode;
+
+    // Generates 6-digit loan code
+    do {
+      candidate = Math.floor(100000 + Math.random() * 899999);
+
+      const [rows] = await conn.query(
+        "SELECT 1 FROM loans where loan_code = ? LIMIT 1",
         [candidate],
       );
-      if (exists.length === 0) {
+
+      if (rows.length == 0) {
+        index = true;
         loanCode = candidate;
-        break;
       }
-    }
-    if (!loanCode) {
-      await conn.rollback();
-      return {
-        success: false,
-        code: "SERVER_ERROR",
-        message: "Failed to generate unique loan code",
-      };
-    }
+    } while (index === false);
 
     // Insert loan (now includes lockers)
     const [insertRes] = await conn.query(
@@ -234,6 +229,23 @@ export const getBorrowableItemsFromDatabase = async (
 };
 
 export const SETdeleteLoanFromDatabase = async (loanId) => {
+  const [checkIfdatesReturned] = await pool.query(
+    "SELECT take_date, returned_date FROM loans WHERE id = ? AND deleted = 0",
+    [loanId],
+  );
+
+  if (checkIfdatesReturned.length === 0) {
+    return { success: false, code: "LOAN_NOT_FOUND" };
+  }
+
+  const { take_date, returned_date } = checkIfdatesReturned[0];
+  const bothNull = take_date === null && returned_date === null;
+  const bothSet = take_date !== null && returned_date !== null;
+
+  if (!(bothNull || bothSet)) {
+    return { success: false, code: "LOAN_NOT_RETURNED" };
+  }
+
   const [result] = await pool.query(
     "UPDATE loans SET deleted = 1 WHERE id = ?;",
     [loanId],

backend/routes/app/database/userMgmt.database.js

@@ -14,7 +14,7 @@ const pool = mysql
 export const loginFunc = async (username, password) => {
   const [result] = await pool.query(
     "SELECT * FROM users WHERE username = ? AND password = ?",
-    [username, password]
+    [username, password],
   );
   if (result.length > 0) return { success: true, data: result[0] };
   return { success: false };
@@ -40,7 +40,7 @@ export const changePassword = async (username, oldPassword, newPassword) => {
   // get user current password
   const [user] = await pool.query(
     "SELECT * FROM users WHERE username = ? AND password = ?",
-    [username, oldPassword]
+    [username, oldPassword],
   );
   if (user.length === 0) return { success: false };
 
@@ -48,8 +48,16 @@ export const changePassword = async (username, oldPassword, newPassword) => {
 
   const [result] = await pool.query(
     "UPDATE users SET password = ? WHERE username = ?",
-    [newPassword, username]
+    [newPassword, username],
   );
   if (result.affectedRows > 0) return { success: true };
   return { success: false };
 };
+
+export const getDeactivatedServices = async () => {
+  const [rows] = await pool.query("SELECT function_name FROM functions WHERE active = 0;");
+  if (rows.length > 0) {
+    return { success: true, data: rows };
+  }
+  return { success: false };
+};

backend/routes/app/loanMgmt.route.js

@@ -0,0 +1,237 @@
+import express from "express";
+import { authenticate, generateToken } from "../../services/authentication.js";
+import {
+  checkIfServiceIsActive,
+  checkIfServiceIsActive2,
+} from "../../services/functions.js";
+
+// mailer imports
+import { sendMail } from "../../services/mailer/send.js";
+import { loanMail } from "../../services/mailer/templates/loan_created.js";
+
+import dotenv from "dotenv";
+dotenv.config();
+const router = express.Router();
+
+const loan_service = "Loan Service";
+const loan_mailer_service = "Loan Mailer";
+
+// database funcs import
+import {
+  createLoanInDatabase,
+  getLoanInfoWithID,
+  getLoansFromDatabase,
+  getBorrowableItemsFromDatabase,
+  getALLLoans,
+  getItems,
+  SETdeleteLoanFromDatabase,
+  setReturnDate,
+  setTakeDate,
+} from "./database/loansMgmt.database.js";
+
+router.post(
+  "/createLoan",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    try {
+      const { items, startDate, endDate, note } = req.body || {};
+
+      if (!Array.isArray(items) || items.length === 0) {
+        return res.status(400).json({ message: "Items array is required" });
+      }
+
+      // If dates are not provided, default to now .. +7 days
+      const start =
+        startDate ?? new Date().toISOString().slice(0, 19).replace("T", " ");
+      const end =
+        endDate ??
+        new Date(Date.now() + 7 * 24 * 60 * 60 * 1000)
+          .toISOString()
+          .slice(0, 19)
+          .replace("T", " ");
+
+      // Coerce item IDs to numbers and filter invalids
+      const itemIds = items
+        .map((v) => Number(v))
+        .filter((n) => Number.isFinite(n));
+
+      if (itemIds.length === 0) {
+        return res.status(400).json({ message: "No valid item IDs provided" });
+      }
+
+      const result = await createLoanInDatabase(
+        req.user.username,
+        start,
+        end,
+        note,
+        itemIds,
+      );
+      if (result.success) {
+        if (await checkIfServiceIsActive2(loan_mailer_service)) {
+          const mailInfo = await getLoanInfoWithID(result.data.id);
+          console.log(mailInfo);
+          const { html, text } = loanMail(
+            req.user.first_name + " " + req.user.last_name,
+            mailInfo.data.loaned_items_name,
+            mailInfo.data.start_date,
+            mailInfo.data.end_date,
+            mailInfo.data.created_at,
+            mailInfo.data.note,
+          );
+          await sendMail({
+            to: process.env.MAIL_SENDEES,
+            subject: "Neue Ausleihe erstellt!",
+            html,
+            text,
+          });
+        }
+
+        return res.status(201).json({
+          message: "Loan created successfully",
+          loanId: result.data.id,
+          loanCode: result.data.loan_code,
+        });
+      }
+
+      if (result.code === "CONFLICT") {
+        return res
+          .status(409)
+          .json({ message: "Items not available in the selected period" });
+      }
+
+      if (result.code === "BAD_REQUEST") {
+        return res.status(400).json({ message: result.message });
+      }
+
+      return res.status(500).json({ message: "Failed to create loan" });
+    } catch (err) {
+      console.error("createLoan error:", err);
+      return res.status(500).json({ message: "Failed to create loan" });
+    }
+  },
+);
+
+router.get(
+  "/loans",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    const result = await getLoansFromDatabase(req.user.username);
+    if (result.success) {
+      res.status(200).json(result.data);
+    } else if (result.status) {
+      res.status(200).json([]);
+    } else {
+      res.status(500).json({ message: "Failed to fetch loans" });
+    }
+  },
+);
+
+router.post(
+  "/set-return-date/:loan_code",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    const loanCode = req.params.loan_code;
+    const result = await setReturnDate(loanCode);
+    if (result.success) {
+      res.status(200).json({ data: result.data });
+    } else {
+      res.status(500).json({ message: "Failed to set return date" });
+    }
+  },
+);
+
+router.post(
+  "/set-take-date/:loan_code",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    const loanCode = req.params.loan_code;
+    const result = await setTakeDate(loanCode);
+    if (result.success) {
+      res.status(200).json({ data: result.data });
+    } else {
+      res.status(500).json({ message: "Failed to set take date" });
+    }
+  },
+);
+
+router.get("/all-items", authenticate, async (req, res) => {
+  const result = await getItems();
+  if (result.success) {
+    res.status(200).json(result.data);
+  } else {
+    res.status(500).json({ message: "Failed to fetch items" });
+  }
+});
+
+router.delete(
+  "/delete-loan/:id",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    const loanId = req.params.id;
+    const result = await SETdeleteLoanFromDatabase(loanId);
+    if (result.success) {
+      res.status(200).json({ message: "Loan deleted successfully" });
+    } else {
+      if (result.code === "LOAN_NOT_FOUND") {
+        res.status(404).json({ message: "Loan not found" });
+      }
+
+      if (result.code === "LOAN_NOT_RETURNED") {
+        res.status(507).json({
+          message: "Cannot delete loan that has not been returned",
+        });
+      }
+
+      res.status(500).json({ message: "Failed to delete loan" });
+    }
+  },
+);
+
+router.get(
+  "/all-loans",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    const result = await getALLLoans();
+    if (result.success) {
+      res.status(200).json(result.data);
+    } else {
+      res.status(500).json({ message: "Failed to fetch loans" });
+    }
+  },
+);
+
+router.post(
+  "/borrowable-items",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
+    const { startDate, endDate } = req.body || {};
+    if (!startDate || !endDate) {
+      return res
+        .status(400)
+        .json({ message: "startDate and endDate are required" });
+    }
+
+    const result = await getBorrowableItemsFromDatabase(
+      startDate,
+      endDate,
+      req.user.role,
+    );
+    if (result.success) {
+      // return the array directly for consistency with /items
+      return res.status(200).json(result.data);
+    } else {
+      return res
+        .status(500)
+        .json({ message: "Failed to fetch borrowable items" });
+    }
+  },
+);
+
+export default router;

backend/routes/app/userMgmt.route.js

@@ -0,0 +1,99 @@
+import express from "express";
+import { authenticate, generateToken } from "../../services/authentication.js";
+import { checkIfServiceIsActive } from "../../services/functions.js";
+const router = express.Router();
+import dotenv from "dotenv";
+dotenv.config();
+
+const user_frontend_service = "User Frontend";
+const contact_form_service = "Contact Form Service";
+
+// database funcs import
+import {
+  loginFunc,
+  changePassword,
+  getDeactivatedServices,
+} from "./database/userMgmt.database.js";
+
+// mailer imports
+import { sendMail } from "../../services/mailer/send.js";
+import { contactMail } from "../../services/mailer/templates/contact.js";
+
+router.post(
+  "/login",
+  checkIfServiceIsActive(user_frontend_service),
+  async (req, res) => {
+    const result = await loginFunc(req.body.username, req.body.password);
+    if (result.success) {
+      const token = await generateToken({
+        username: result.data.username,
+        is_admin: result.data.is_admin,
+        first_name: result.data.first_name,
+        last_name: result.data.last_name,
+        role: result.data.role,
+      });
+      res.status(200).json({ message: "Login successful", token });
+    } else {
+      res.status(401).json({ message: "Invalid credentials" });
+    }
+  },
+);
+
+router.post(
+  "/change-password",
+  checkIfServiceIsActive(user_frontend_service),
+  authenticate,
+  async (req, res) => {
+    const oldPassword = req.body.oldPassword;
+    const newPassword = req.body.newPassword;
+    const username = req.user.username;
+    const result = await changePassword(username, oldPassword, newPassword);
+    if (result.success) {
+      res.status(200).json({ message: "Password changed successfully" });
+    } else {
+      res.status(500).json({ message: "Failed to change password" });
+    }
+  },
+);
+
+router.post(
+  "/contact",
+  checkIfServiceIsActive(contact_form_service),
+  authenticate,
+  async (req, res) => {
+    try {
+      const message = req.body?.message;
+      const username = req.user?.first_name + " " + req.user?.last_name;
+
+      if (!username || !message) {
+        return res
+          .status(400)
+          .json({ message: "Username and message are required" });
+      }
+
+      const { html, text } = contactMail({ username, message });
+      await sendMail({
+        to: process.env.MAIL_SENDEES_CONTACT,
+        subject: "Neue Nachricht!",
+        html,
+        text,
+      });
+
+      res.status(200).json({ message: "Contact message sent successfully" });
+    } catch (error) {
+      console.error("Failed to send contact mail:", error);
+      res.status(500).json({ message: "Failed to send contact message" });
+    }
+  },
+);
+
+router.get("/deactivated-services", authenticate, async (req, res) => {
+  const result = await getDeactivatedServices();
+  if (result.success) {
+    res.status(200).json(result.data);
+  } else {
+    res.status(500).json({ message: "Failed to fetch deactivated services" });
+  }
+});
+
+export default router;

backend/schemeV2.sql

@@ -27,6 +27,7 @@ CREATE TABLE loans (
   loaned_items_id json NOT NULL DEFAULT ('[]'),
   loaned_items_name json NOT NULL DEFAULT ('[]'),
   deleted bool NOT NULL DEFAULT false,
+  deleted_admin bool NOT NULL DEFAULT false,
   note varchar(500) DEFAULT NULL,
   PRIMARY KEY (id),
   CHECK (loan_code REGEXP '^[0-9]{6}$')
@@ -55,3 +56,14 @@ CREATE TABLE apiKeys (
   PRIMARY KEY (id),
   CHECK (api_key REGEXP '^[0-9]{8}$')
 ) ENGINE=InnoDB;
+
+CREATE TABLE functions (
+  id INT NOT NULL AUTO_INCREMENT,
+  function_name VARCHAR(500) NOT NULL UNIQUE,
+  active BOOLEAN NOT NULL DEFAULT true,
+  entry_updated_at timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  entry_created_at TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (id)
+) ENGINE=InnoDB;
+
+INSERT INTO functions (function_name) VALUES ("Loan Mailer"), ("Loan Service"), ("Contact Form Service"), ("User Frontend"), ("API")

backend/server.js

@@ -1,8 +1,25 @@
 import express from "express";
 import cors from "cors";
-import env from "dotenv";
-import info from "./info.json" assert { type: "json" };
+import dotenv from "dotenv";
+import info from "./info.json" with { type: "json" };
 import { authenticate } from "./services/authentication.js";
+import { rateLimit } from "express-rate-limit";
+
+dotenv.config();
+const app = express();
+const port = 8004;
+const naasURL = process.env.NAAS_URL;
+
+const limiter = rateLimit({
+  windowMs: 1 * 60 * 1000, // 1 minute
+  limit: 50, // Limit each IP to 50 requests per `window` (here, per 1 minute).
+  standardHeaders: "draft-8", // draft-6: `RateLimit-*` headers; draft-7 & draft-8: combined `RateLimit` header
+  legacyHeaders: false, // Disable the `X-RateLimit-*` headers.
+  ipv6Subnet: 56, // Set to 60 or 64 to be less aggressive, or 52 or 48 to be more aggressive
+  // store: ... , // Redis, Memcached, etc. See below.
+});
+
+app.use(limiter);
 
 // frontend routes
 import loansMgmtRouter from "./routes/app/loanMgmt.route.js";
@@ -14,14 +31,11 @@ import loanDataMgmtRouter from "./routes/admin/loanDataMgmt.route.js";
 import itemDataMgmtRouter from "./routes/admin/itemDataMgmt.route.js";
 import apiDataMgmtRouter from "./routes/admin/apiDataMgmt.route.js";
 import userMgmtRouterADMIN from "./routes/admin/userMgmt.route.js";
+import serverConfMgmtRouter from "./routes/admin/serverConfMgmt.route.js";
 
 // API routes
 import apiRouter from "./routes/api/api.route.js";
 
-env.config();
-const app = express();
-const port = 8004;
-
 app.use(cors());
 // Body-Parser VOR den Routen registrieren
 app.use(express.json({ limit: "10mb" }));
@@ -37,6 +51,7 @@ app.use("/api/admin/user-data", userDataMgmtRouter);
 app.use("/api/admin/item-data", itemDataMgmtRouter);
 app.use("/api/admin/api-data", apiDataMgmtRouter);
 app.use("/api/admin/user-mgmt", userMgmtRouterADMIN);
+app.use("/api/admin/server-config", serverConfMgmtRouter);
 
 // API routes
 app.use("/api", apiRouter);
@@ -47,6 +62,20 @@ app.listen(port, () => {
   console.log(`Server is running on port: ${port}`);
 });
 
+app.get("/no", async (req, res) => {
+  try {
+    const response = await fetch(naasURL);
+    if (!response.ok) {
+      res.status(500).send("Request to no-as-a-service went wrong.");
+    }
+    const data = await response.json();
+    res.json(data);
+  } catch (error) {
+    console.error("Error communicating with no-as-a-service:", error);
+    res.status(500).send("Error communicating with no-as-a-service.");
+  }
+});
+
 app.get("/verify", authenticate, async (req, res) => {
   res.status(200).json({ message: "Token is valid", user: req.user });
 });

backend/services/authentication.js

@@ -1,8 +1,12 @@
 import { SignJWT, jwtVerify } from "jose";
 import env from "dotenv";
 import { verifyAPIKeyDB } from "./database.js";
+import { checkIfServiceIsActive2 } from "./functions.js";
 env.config();
 
+const api_service = "API";
+const user_frontend_service = "User Frontend";
+
 const secretKey = process.env.SECRET_KEY;
 if (!secretKey) {
   throw new Error("Missing SECRET_KEY environment variable");
@@ -45,6 +49,13 @@ export async function authenticate(req, res, next) {
   const apiKey = req.params.key;
 
   if (authHeader) {
+    const serviceActive = await checkIfServiceIsActive2(user_frontend_service);
+    if (!serviceActive) {
+      return res
+        .status(503)
+        .json({ message: "User Frontend is currently unavailable." });
+    }
+
     const parts = authHeader.split(" ");
     const scheme = parts[0];
     const token = parts[1];
@@ -61,6 +72,13 @@ export async function authenticate(req, res, next) {
       return res.status(403).json({ message: "Present token invalid" }); // present token invalid
     }
   } else if (apiKey) {
+    const serviceActive = await checkIfServiceIsActive2(api_service);
+    if (!serviceActive) {
+      return res
+        .status(503)
+        .json({ message: "API Service is currently unavailable." });
+    }
+
     try {
       await verifyAPIKey(apiKey);
       return next();

backend/services/functions.js

@@ -0,0 +1,42 @@
+import mysql from "mysql2";
+import dotenv from "dotenv";
+dotenv.config();
+
+const pool = mysql
+  .createPool({
+    host: process.env.DB_HOST,
+    user: process.env.DB_USER,
+    password: process.env.DB_PASSWORD,
+    database: process.env.DB_NAME,
+  })
+  .promise();
+
+export function checkIfServiceIsActive(service) {
+  return async (req, res, next) => {
+    const [result] = await pool.query(
+      "SELECT * FROM functions WHERE function_name = ? AND active = 1;",
+      [service],
+    );
+
+    if (result.length > 0) {
+      return next();
+    }
+
+    return res
+      .status(503)
+      .json({ message: `-${service}- is currently unavailable.` });
+  };
+}
+
+export async function checkIfServiceIsActive2(service) {
+  const [result] = await pool.query(
+    "SELECT * FROM functions WHERE function_name = ? AND active = 1;",
+    [service],
+  );
+
+  if (result.length > 0) {
+    return true;
+  }
+
+  return false;
+}

backend/services/mailer/send.js

@@ -0,0 +1,13 @@
+import { transporter } from "./transporter.js";
+
+export async function sendMail({ to, subject, text, html }) {
+  const info = await transporter.sendMail({
+    from: '"Ausleihsystem" <noreply@mcs-medien.de>',
+    to,
+    subject,
+    text,
+    html,
+  });
+  console.log("Mail sent:", info.messageId);
+  return info;
+}

backend/services/mailer/templates/contact.js

@@ -0,0 +1,76 @@
+export function contactMail({ username, message }) {
+  const brand = process.env.MAIL_BRAND_COLOR || "#0ea5e9";
+
+  const html = `<!DOCTYPE html>
+<html lang="de">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <meta name="color-scheme" content="light">
+  <title>Neue Nachricht</title>
+</head>
+<body style="margin:0;padding:0;background:#f2f4f7;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;color:#111827;-webkit-text-size-adjust:100%;">
+  <div style="display:none;max-height:0;overflow:hidden;opacity:0;">Neue Kontaktanfrage im Ausleihsystem.</div>
+  <table role="presentation" cellpadding="0" cellspacing="0" width="100%" style="background:#f2f4f7;">
+    <tr>
+      <td align="center" style="padding:32px 16px;">
+        <table role="presentation" cellpadding="0" cellspacing="0" width="600" style="max-width:600px;width:100%;border-radius:14px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.06);">
+
+          <!-- Header -->
+          <tr>
+            <td style="background:${brand};padding:32px 30px 28px;">
+              <h1 style="margin:0;font-size:24px;color:#ffffff;font-weight:700;">Neue Nachricht</h1>
+              <p style="margin:8px 0 0;font-size:14px;color:rgba(255,255,255,0.85);">Eine neue Kontaktanfrage ist eingegangen.</p>
+            </td>
+          </tr>
+
+          <!-- Accent line -->
+          <tr>
+            <td style="height:3px;line-height:3px;font-size:1px;background:${brand};">&nbsp;</td>
+          </tr>
+
+          <!-- Content -->
+          <tr>
+            <td style="background:#ffffff;padding:28px 30px;">
+              <table role="presentation" cellpadding="0" cellspacing="0" width="100%" style="background:#fafbfc;border:1px solid #f3f4f6;border-radius:10px;border-collapse:collapse;">
+                <tr>
+                  <td style="padding:14px 16px;color:#6b7280;font-size:13px;white-space:nowrap;vertical-align:top;border-bottom:1px solid #f3f4f6;">
+                    Benutzername
+                  </td>
+                  <td style="padding:14px 16px;font-weight:600;color:#111827;font-size:14px;vertical-align:top;border-bottom:1px solid #f3f4f6;">
+                    ${username || "N/A"}
+                  </td>
+                </tr>
+                <tr>
+                  <td style="padding:14px 16px;color:#6b7280;font-size:13px;white-space:nowrap;vertical-align:top;">
+                    Nachricht
+                  </td>
+                  <td style="padding:14px 16px;font-weight:600;color:#111827;font-size:14px;vertical-align:top;white-space:pre-line;">
+                    ${message || "N/A"}
+                  </td>
+                </tr>
+              </table>
+            </td>
+          </tr>
+
+          <!-- Footer -->
+          <tr>
+            <td style="background:#f9fafb;padding:20px 30px;border-top:1px solid #e5e7eb;">
+              <p style="margin:0;font-size:12px;color:#9ca3af;text-align:center;line-height:1.6;">
+                Diese E-Mail wurde automatisch vom Ausleihsystem gesendet.<br>
+                Bitte antworten Sie nicht auf diese Nachricht.
+              </p>
+            </td>
+          </tr>
+
+        </table>
+      </td>
+    </tr>
+  </table>
+</body>
+</html>`;
+
+  const text = `Neue Kontaktanfrage\n\nBenutzername: ${username}\nNachricht:\n${message}`;
+
+  return { html, text };
+}

backend/services/mailer/templates/loan_created.js

@@ -0,0 +1,124 @@
+const formatDateTime = (value) => {
+  if (value == null) return "N/A";
+  const d = value instanceof Date ? value : new Date(value);
+  if (isNaN(d.getTime())) return "N/A";
+  return (
+    d.toLocaleString("de-DE", {
+      day: "2-digit",
+      month: "2-digit",
+      year: "numeric",
+      hour: "2-digit",
+      minute: "2-digit",
+    }) + " Uhr"
+  );
+};
+
+export function loanMail(user, items, startDate, endDate, createdDate, note) {
+  const brand = process.env.MAIL_BRAND_COLOR || "#0ea5e9";
+
+  const itemsHtml =
+    Array.isArray(items) && items.length
+      ? items
+          .map(
+            (i) =>
+              `<span style="display:inline-block;background:#f0f9ff;color:#0369a1;padding:4px 12px;margin:2px 4px 2px 0;border-radius:20px;font-size:13px;font-weight:500;">${i}</span>`,
+          )
+          .join(" ")
+      : '<span style="color:#9ca3af;">Keine Gegenst&auml;nde</span>';
+
+  const row = (label, value, isLast = false) => `
+    <tr>
+      <td style="padding:14px 16px;color:#6b7280;font-size:13px;white-space:nowrap;vertical-align:top;${isLast ? "" : "border-bottom:1px solid #f3f4f6;"}">
+        ${label}
+      </td>
+      <td style="padding:14px 16px;font-weight:600;color:#111827;font-size:14px;vertical-align:top;${isLast ? "" : "border-bottom:1px solid #f3f4f6;"}">
+        ${value}
+      </td>
+    </tr>`;
+
+  const html = `<!DOCTYPE html>
+<html lang="de">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <meta name="color-scheme" content="light">
+  <title>Neue Ausleihe</title>
+</head>
+<body style="margin:0;padding:0;background:#f2f4f7;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;color:#111827;-webkit-text-size-adjust:100%;">
+  <div style="display:none;max-height:0;overflow:hidden;opacity:0;">Neue Ausleihe erstellt – Details zur Buchung.</div>
+  <table role="presentation" cellpadding="0" cellspacing="0" width="100%" style="background:#f2f4f7;">
+    <tr>
+      <td align="center" style="padding:32px 16px;">
+        <table role="presentation" cellpadding="0" cellspacing="0" width="600" style="max-width:600px;width:100%;border-radius:14px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.06);">
+
+          <!-- Header -->
+          <tr>
+            <td style="background:${brand};padding:32px 30px 28px;">
+              <h1 style="margin:0;font-size:24px;color:#ffffff;font-weight:700;">Neue Ausleihe</h1>
+              <p style="margin:8px 0 0;font-size:14px;color:rgba(255,255,255,0.85);">Es wurde soeben eine neue Ausleihe im System angelegt.</p>
+            </td>
+          </tr>
+
+          <!-- Accent line -->
+          <tr>
+            <td style="background:#ffffff;padding:0;height:3px;line-height:3px;font-size:1px;background:${brand};">&nbsp;</td>
+          </tr>
+
+          <!-- Details -->
+          <tr>
+            <td style="background:#ffffff;padding:28px 30px 10px;">
+              <p style="margin:0 0 14px;font-size:11px;font-weight:700;color:#9ca3af;letter-spacing:1.5px;text-transform:uppercase;">Details zur Ausleihe</p>
+              <table role="presentation" cellpadding="0" cellspacing="0" width="100%" style="background:#fafbfc;border:1px solid #f3f4f6;border-radius:10px;border-collapse:collapse;">
+                ${row("Benutzer", user || "N/A")}
+                ${row("Gegenst&auml;nde", itemsHtml)}
+                ${row("Startdatum", formatDateTime(startDate))}
+                ${row("Enddatum", formatDateTime(endDate))}
+                ${row("Erstellt am", formatDateTime(createdDate))}
+                ${row("Notiz", note || '<span style="color:#9ca3af;">Keine Notiz</span>', true)}
+              </table>
+            </td>
+          </tr>
+
+          <!-- Button -->
+          <tr>
+            <td style="background:#ffffff;padding:20px 30px 32px;" align="center">
+              <a href="https://admin.insta.the1s.de/api" target="_blank" rel="noopener noreferrer"
+                 style="display:inline-block;background:${brand};color:#ffffff;text-decoration:none;padding:13px 28px;border-radius:8px;font-weight:600;font-size:15px;">
+                Ausleihe ansehen &rarr;
+              </a>
+            </td>
+          </tr>
+
+          <!-- Footer -->
+          <tr>
+            <td style="background:#f9fafb;padding:20px 30px;border-top:1px solid #e5e7eb;">
+              <p style="margin:0;font-size:12px;color:#9ca3af;text-align:center;line-height:1.6;">
+                Diese E-Mail wurde automatisch vom Ausleihsystem gesendet.<br>
+                Bitte antworten Sie nicht auf diese Nachricht.
+              </p>
+            </td>
+          </tr>
+
+        </table>
+      </td>
+    </tr>
+  </table>
+</body>
+</html>`;
+
+  const itemsText = Array.isArray(items) ? items.join(", ") : "N/A";
+  const text = [
+    "Neue Ausleihe erstellt",
+    "-".repeat(30),
+    `Benutzer:      ${user || "N/A"}`,
+    `Gegenstaende:  ${itemsText}`,
+    `Start:         ${formatDateTime(startDate)}`,
+    `Ende:          ${formatDateTime(endDate)}`,
+    `Erstellt:      ${formatDateTime(createdDate)}`,
+    `Notiz:         ${note || "Keine Notiz"}`,
+    "",
+    "-> https://admin.insta.the1s.de/api",
+  ].join("\n");
+
+  return { html, text };
+}

backend/services/mailer/transporter.js

@@ -0,0 +1,13 @@
+import nodemailer from "nodemailer";
+import dotenv from "dotenv";
+dotenv.config();
+
+export const transporter = nodemailer.createTransport({
+  host: process.env.MAIL_HOST,
+  port: process.env.MAIL_PORT,
+  secure: true,
+  auth: {
+    user: process.env.MAIL_USER,
+    pass: process.env.MAIL_PASSWORD,
+  },
+});

backendV2/Dockerfile

@@ -1,12 +0,0 @@
-FROM node:20-alpine
-
-ENV NODE_ENV=production
-WORKDIR /backend
-
-COPY package*.json ./
-RUN npm ci --omit=dev
-
-COPY . .
-
-EXPOSE 8004
-CMD ["npm", "start"]

backendV2/info.json

@@ -1,11 +0,0 @@
-{
-    "backend-info": {
-        "version": "v2.0.1 (dev)"
-    },
-    "frontend-info": {
-        "version": "v2.0 (dev)"
-    },
-    "admin-panel-info": {
-        "version": "v1.3 (dev)"
-    }
-}

backendV2/routes/app/loanMgmt.route.js

@@ -1,172 +0,0 @@
-import express from "express";
-import { authenticate, generateToken } from "../../services/authentication.js";
-const router = express.Router();
-import dotenv from "dotenv";
-dotenv.config();
-
-// database funcs import
-import {
-  createLoanInDatabase,
-  getLoanInfoWithID,
-  getLoansFromDatabase,
-  getBorrowableItemsFromDatabase,
-  getALLLoans,
-  getItems,
-  SETdeleteLoanFromDatabase,
-  setReturnDate,
-  setTakeDate,
-} from "./database/loansMgmt.database.js";
-import { sendMailLoan } from "./services/mailer.js";
-
-router.post("/createLoan", authenticate, async (req, res) => {
-  try {
-    const { items, startDate, endDate, note } = req.body || {};
-
-    if (!Array.isArray(items) || items.length === 0) {
-      return res.status(400).json({ message: "Items array is required" });
-    }
-
-    // If dates are not provided, default to now .. +7 days
-    const start =
-      startDate ?? new Date().toISOString().slice(0, 19).replace("T", " ");
-    const end =
-      endDate ??
-      new Date(Date.now() + 7 * 24 * 60 * 60 * 1000)
-        .toISOString()
-        .slice(0, 19)
-        .replace("T", " ");
-
-    // Coerce item IDs to numbers and filter invalids
-    const itemIds = items
-      .map((v) => Number(v))
-      .filter((n) => Number.isFinite(n));
-
-    if (itemIds.length === 0) {
-      return res.status(400).json({ message: "No valid item IDs provided" });
-    }
-
-    const result = await createLoanInDatabase(
-      req.user.username,
-      start,
-      end,
-      note,
-      itemIds,
-    );
-
-    if (result.success) {
-      const mailInfo = await getLoanInfoWithID(result.data.id);
-      console.log(mailInfo);
-      sendMailLoan(
-        mailInfo.data.username,
-        mailInfo.data.loaned_items_name,
-        mailInfo.data.start_date,
-        mailInfo.data.end_date,
-        mailInfo.data.created_at,
-      );
-      return res.status(201).json({
-        message: "Loan created successfully",
-        loanId: result.data.id,
-        loanCode: result.data.loan_code,
-      });
-    }
-
-    if (result.code === "CONFLICT") {
-      return res
-        .status(409)
-        .json({ message: "Items not available in the selected period" });
-    }
-
-    if (result.code === "BAD_REQUEST") {
-      return res.status(400).json({ message: result.message });
-    }
-
-    return res.status(500).json({ message: "Failed to create loan" });
-  } catch (err) {
-    console.error("createLoan error:", err);
-    return res.status(500).json({ message: "Failed to create loan" });
-  }
-});
-
-router.get("/loans", authenticate, async (req, res) => {
-  const result = await getLoansFromDatabase(req.user.username);
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else if (result.status) {
-    res.status(200).json([]);
-  } else {
-    res.status(500).json({ message: "Failed to fetch loans" });
-  }
-});
-
-router.post("/set-return-date/:loan_code", authenticate, async (req, res) => {
-  const loanCode = req.params.loan_code;
-  const result = await setReturnDate(loanCode);
-  if (result.success) {
-    res.status(200).json({ data: result.data });
-  } else {
-    res.status(500).json({ message: "Failed to set return date" });
-  }
-});
-
-router.post("/set-take-date/:loan_code", authenticate, async (req, res) => {
-  const loanCode = req.params.loan_code;
-  const result = await setTakeDate(loanCode);
-  if (result.success) {
-    res.status(200).json({ data: result.data });
-  } else {
-    res.status(500).json({ message: "Failed to set take date" });
-  }
-});
-
-router.get("/all-items", authenticate, async (req, res) => {
-  const result = await getItems();
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else {
-    res.status(500).json({ message: "Failed to fetch items" });
-  }
-});
-
-router.delete("/delete-loan/:id", authenticate, async (req, res) => {
-  const loanId = req.params.id;
-  const result = await SETdeleteLoanFromDatabase(loanId);
-  if (result.success) {
-    res.status(200).json({ message: "Loan deleted successfully" });
-  } else {
-    res.status(500).json({ message: "Failed to delete loan" });
-  }
-});
-
-router.get("/all-loans", authenticate, async (req, res) => {
-  const result = await getALLLoans();
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else {
-    res.status(500).json({ message: "Failed to fetch loans" });
-  }
-});
-
-router.post("/borrowable-items", authenticate, async (req, res) => {
-  const { startDate, endDate } = req.body || {};
-  if (!startDate || !endDate) {
-    return res
-      .status(400)
-      .json({ message: "startDate and endDate are required" });
-  }
-
-  const result = await getBorrowableItemsFromDatabase(
-    startDate,
-    endDate,
-    req.user.role,
-  );
-  if (result.success) {
-    // return the array directly for consistency with /items
-    return res.status(200).json(result.data);
-  } else {
-    return res
-      .status(500)
-      .json({ message: "Failed to fetch borrowable items" });
-  }
-});
-
-export default router;

backendV2/routes/app/services/mailer.js

@@ -1,181 +0,0 @@
-import nodemailer from "nodemailer";
-import dotenv from "dotenv";
-dotenv.config();
-
-const formatDateTime = (value) => {
-  if (value == null) return "N/A";
-
-  const toOut = (d) => {
-    if (!(d instanceof Date) || isNaN(d.getTime())) return "N/A";
-    const dd = String(d.getDate()).padStart(2, "0");
-    const mm = String(d.getMonth() + 1).padStart(2, "0");
-    const yyyy = d.getFullYear();
-    const hh = String(d.getHours()).padStart(2, "0");
-    const mi = String(d.getMinutes()).padStart(2, "0");
-    return `${dd}.${mm}.${yyyy} ${hh}:${mi} Uhr`;
-  };
-
-  if (value instanceof Date) return toOut(value);
-  if (typeof value === "number") return toOut(new Date(value));
-
-  const s = String(value).trim();
-
-  // Direct pattern: "YYYY-MM-DD[ T]HH:mm[:ss]"
-  const m = s.match(/^(\d{4})-(\d{2})-(\d{2})[ T](\d{2}):(\d{2})(?::\d{2})?/);
-  if (m) {
-    const [, y, M, d, h, min] = m;
-    return `${d}.${M}.${y} ${h}:${min} Uhr`;
-  }
-
-  // ISO or other parseable formats
-  const dObj = new Date(s);
-  if (!isNaN(dObj.getTime())) return toOut(dObj);
-
-  return "N/A";
-};
-
-function buildLoanEmail({ user, items, startDate, endDate, createdDate }) {
-  const brand = process.env.MAIL_BRAND_COLOR || "#0ea5e9";
-  const itemsList =
-    Array.isArray(items) && items.length
-      ? `<ul style="margin:4px 0 0 18px; padding:0;">${items
-          .map(
-            (i) =>
-              `<li style="margin:2px 0; color:#111827; line-height:1.3;">${i}</li>`
-          )
-          .join("")}</ul>`
-      : "<span style='color:#111827;'>N/A</span>";
-
-  return `<!doctype html>
-<html lang="de">
-<head>
-  <meta charset="utf-8">
-  <meta name="color-scheme" content="light">
-  <meta name="supported-color-schemes" content="light">
-  <meta name="x-apple-disable-message-reformatting">
-  <meta name="viewport" content="width=device-width,initial-scale=1">
-  <style>
-    :root { color-scheme: light; supported-color-schemes: light; }
-    body { margin:0; padding:0; }
-    /* Mobile stacking */
-    @media (max-width:480px) {
-      .outer { width:100% !important; }
-      .pad-sm { padding:16px !important; }
-      .w-label { width:120px !important; }
-    }
-    /* Dark-mode override safety */
-    @media (prefers-color-scheme: dark) {
-      body, table, td, p, a, h1, h2, h3 { background:#ffffff !important; color:#111827 !important; }
-      .brand-header { background:${brand} !important; color:#ffffff !important; }
-      a { color:${brand} !important; }
-    }
-  </style>
-</head>
-<body bgcolor="#ffffff" style="background:#ffffff; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif; color:#111827; -webkit-text-size-adjust:100%;">
-  <!-- Preheader (hidden) -->
-  <div style="display:none; max-height:0; overflow:hidden; opacity:0; mso-hide:all;">
-    Neue Ausleihe erstellt – Übersicht der Buchung.
-  </div>
-  <div role="article" aria-roledescription="email" lang="de" style="padding:24px; background:#f2f4f7;">
-    <table role="presentation" cellpadding="0" cellspacing="0" width="100%" class="outer" style="max-width:600px; margin:0 auto; background:#ffffff; border:1px solid #e5e7eb; border-radius:14px; overflow:hidden;">
-      <tr>
-        <td class="brand-header" style="padding:22px 26px; background:${brand}; color:#ffffff;">
-          <h1 style="margin:0; font-size:18px; line-height:1.35; font-weight:600;">Neue Ausleihe erstellt</h1>
-        </td>
-      </tr>
-      <tr>
-        <td class="pad-sm" style="padding:24px 26px; color:#111827;">
-          <p style="margin:0 0 14px 0; line-height:1.4;">Es wurde eine neue Ausleihe angelegt. Hier sind die Details:</p>
-          <table role="presentation" cellpadding="0" cellspacing="0" width="100%" style="border-collapse:collapse; font-size:14px; line-height:1.3; background:#fcfcfd; border:1px solid #e5e7eb; border-radius:10px; overflow:hidden;">
-            <tbody>
-              <tr>
-                <td class="w-label" style="padding:10px 14px; color:#6b7280; width:170px; border-bottom:1px solid #ececec;">Benutzer</td>
-                <td style="padding:10px 14px; font-weight:600; border-bottom:1px solid #ececec; color:#111827;">${
-                  user || "N/A"
-                }</td>
-              </tr>
-              <tr>
-                <td style="padding:10px 14px; color:#6b7280; vertical-align:top; border-bottom:1px solid #ececec;">Ausgeliehene Gegenstände</td>
-                <td style="padding:10px 14px; font-weight:600; border-bottom:1px solid #ececec; color:#111827;">${itemsList}</td>
-              </tr>
-              <tr>
-                <td style="padding:10px 14px; color:#6b7280; border-bottom:1px solid #ececec;">Startdatum</td>
-                <td style="padding:10px 14px; font-weight:600; border-bottom:1px solid #ececec; color:#111827;">${formatDateTime(
-                  startDate
-                )}</td>
-              </tr>
-              <tr>
-                <td style="padding:10px 14px; color:#6b7280; border-bottom:1px solid #ececec;">Enddatum</td>
-                <td style="padding:10px 14px; font-weight:600; border-bottom:1px solid #ececec; color:#111827;">${formatDateTime(
-                  endDate
-                )}</td>
-              </tr>
-              <tr>
-                <td style="padding:10px 14px; color:#6b7280;">Erstellt am</td>
-                <td style="padding:10px 14px; font-weight:600; color:#111827;">${formatDateTime(
-                  createdDate
-                )}</td>
-              </tr>
-            </tbody>
-          </table>
-          <p style="margin:22px 0 0 0; font-size:14px;">
-            <a href="https://admin.insta.the1s.de/api" style="display:inline-block; background:${brand}; color:#ffffff; text-decoration:none; padding:10px 16px; border-radius:6px; font-weight:600; font-size:14px;" target="_blank" rel="noopener noreferrer">
-              Übersicht öffnen
-            </a>
-          </p>
-          <p style="margin:18px 0 0 0; font-size:12px; color:#6b7280; line-height:1.4;">
-            Diese E-Mail wurde automatisch vom Ausleihsystem gesendet. Bitte nicht antworten.
-          </p>
-        </td>
-      </tr>
-    </table>
-  </div>
-</body>
-</html>`;
-}
-
-function buildLoanEmailText({ user, items, startDate, endDate, createdDate }) {
-  const itemsText =
-    Array.isArray(items) && items.length ? items.join(", ") : "N/A";
-  return [
-    "Neue Ausleihe erstellt",
-    "",
-    `Benutzer: ${user || "N/A"}`,
-    `Gegenstände: ${itemsText}`,
-    `Start: ${formatDateTime(startDate)}`,
-    `Ende: ${formatDateTime(endDate)}`,
-    `Erstellt am: ${formatDateTime(createdDate)}`,
-  ].join("\n");
-}
-
-export function sendMailLoan(user, items, startDate, endDate, createdDate) {
-  const transporter = nodemailer.createTransport({
-    host: process.env.MAIL_HOST,
-    port: process.env.MAIL_PORT,
-    secure: true,
-    auth: {
-      user: process.env.MAIL_USER,
-      pass: process.env.MAIL_PASSWORD,
-    },
-  });
-
-  (async () => {
-    const info = await transporter.sendMail({
-      from: '"Ausleihsystem" <noreply@mcs-medien.de>',
-      to: process.env.MAIL_SENDEES,
-      subject: "Eine neue Ausleihe wurde erstellt!",
-      text: buildLoanEmailText({
-        user,
-        items,
-        startDate,
-        endDate,
-        createdDate,
-      }),
-      html: buildLoanEmail({ user, items, startDate, endDate, createdDate }),
-    });
-
-    // debugging logs
-    // console.log("Message sent:", info.messageId);
-  })();
-  // console.log("sendMailLoan called");
-}

backendV2/routes/app/services/mailer_v2.js

@@ -1,45 +0,0 @@
-import nodemailer from "nodemailer";
-import dotenv from "dotenv";
-dotenv.config();
-
-export function sendMail(username, message) {
-  const transporter = nodemailer.createTransport({
-    host: process.env.MAIL_HOST,
-    port: process.env.MAIL_PORT,
-    secure: true,
-    auth: {
-      user: process.env.MAIL_USER,
-      pass: process.env.MAIL_PASSWORD,
-    },
-  });
-
-  (async () => {
-    const mailText = `Neue Kontaktanfrage im Ausleihsystem.\n\nBenutzername: ${username}\n\nNachricht:\n${message}`;
-
-    const mailHtml = `<!DOCTYPE html>
-<html lang="de">
-  <head>
-    <meta charset="UTF-8" />
-    <title>Neue Nachricht im Ausleihsystem</title>
-  </head>
-  <body style="font-family: Arial, sans-serif; line-height: 1.5; color: #222;">
-    <h2>Neue Nachricht im Ausleihsystem</h2>
-    <p><strong>Benutzername:</strong> ${username}</p>
-    <p><strong>Nachricht:</strong></p>
-    <p style="white-space: pre-line;">${message}</p>
-  </body>
-</html>`;
-
-    const info = await transporter.sendMail({
-      from: '"Ausleihsystem" <noreply@mcs-medien.de>',
-      to: process.env.MAIL_SENDEES_CONTACT,
-      subject: "Sie haben eine neue Nachricht!",
-      text: mailText,
-      html: mailHtml,
-    });
-
-    // debugging logs
-    // console.log("Message sent:", info.messageId);
-  })();
-  // console.log("sendMailLoan called");
-}

backendV2/routes/app/userMgmt.route.js

@@ -1,48 +0,0 @@
-import express from "express";
-import { authenticate, generateToken } from "../../services/authentication.js";
-const router = express.Router();
-import dotenv from "dotenv";
-dotenv.config();
-
-// database funcs import
-import { loginFunc, changePassword } from "./database/userMgmt.database.js";
-import { sendMail } from "./services/mailer_v2.js";
-
-router.post("/login", async (req, res) => {
-  const result = await loginFunc(req.body.username, req.body.password);
-  if (result.success) {
-    const token = await generateToken({
-      username: result.data.username,
-      is_admin: result.data.is_admin,
-      first_name: result.data.first_name,
-      last_name: result.data.last_name,
-      role: result.data.role,
-    });
-    res.status(200).json({ message: "Login successful", token });
-  } else {
-    res.status(401).json({ message: "Invalid credentials" });
-  }
-});
-
-router.post("/change-password", authenticate, async (req, res) => {
-  const oldPassword = req.body.oldPassword;
-  const newPassword = req.body.newPassword;
-  const username = req.user.username;
-  const result = await changePassword(username, oldPassword, newPassword);
-  if (result.success) {
-    res.status(200).json({ message: "Password changed successfully" });
-  } else {
-    res.status(500).json({ message: "Failed to change password" });
-  }
-});
-
-router.post("/contact", authenticate, async (req, res) => {
-  const message = req.body.message;
-  const username = req.user.username;
-
-  sendMail(username, message);
-
-  res.status(200).json({ message: "Contact message sent successfully" });
-});
-
-export default router;

backendV2/schemeV2.mock_data.sql

@@ -1,120 +0,0 @@
-USE borrow_system_new;
-
--- Reset tables (no FKs defined, so order is safe)
-SET FOREIGN_KEY_CHECKS = 0;
-TRUNCATE TABLE loans;
-TRUNCATE TABLE apiKeys;
-TRUNCATE TABLE items;
-TRUNCATE TABLE users;
-SET FOREIGN_KEY_CHECKS = 1;
-
--- Users (roles 1–6, plain-text passwords; is_admin is BOOL)
-INSERT INTO users (username, password, email, first_name, last_name, role, is_admin) VALUES
-('admin',  'adminpass', 'admin@example.com',  'System', 'Admin',   6, TRUE),
-('alice',  'alice123',  'alice@example.com',  'Alice',  'Andersen',1, FALSE),
-('bob',    'bob12345',  'bob@example.com',    'Bob',    'Berg',    2, FALSE),
-('carol',  'carol123',  'carol@example.com',  'Carol',  'Christensen', 3, FALSE),
-('dave',   'dave123',   'dave@example.com',   'Dave',   'Dahl',    4, FALSE),
-('erin',   'erin123',   'erin@example.com',   'Erin',   'Enevoldsen', 5, FALSE),
-('frank',  'frank123',  'frank@example.com',  'Frank',  'Fisher',  2, FALSE),
-('grace',  'grace123',  'grace@example.com',  'Grace',  'Gundersen',1, FALSE),
-('heidi',  'heidi123',  'heidi@example.com',  'Heidi',  'Hansen',  4, FALSE),
-('tech',   'techpass',  'tech@example.com',   'Tech',   'User',    5, TRUE);
-
--- Items (safe_nr is two digits or NULL; matches CHECK and UNIQUE constraint)
-INSERT INTO items (item_name, can_borrow_role, in_safe, safe_nr, last_borrowed_person, currently_borrowing) VALUES
-('Laptop A',           2, FALSE, NULL, 'grace',  'bob'),
-('Laptop B',           2, TRUE,  '01', NULL,     NULL),
-('Camera Canon',       3, TRUE,  '02', 'erin',   NULL),
-('Microphone Rode',    1, TRUE,  '03', 'grace',  NULL),
-('Tripod Manfrotto',   1, TRUE,  '04', 'frank',  NULL),
-('Oscilloscope Tek',   4, TRUE,  '05', NULL,     NULL),
-('VR Headset',         3, FALSE, NULL, 'heidi',  'carol'),
-('Keycard Programmer', 6, TRUE,  '06', 'admin',  NULL);
-
--- Loans (JSON strings, 6-digit numeric loan_code per CHECK)
--- Assumes the items above have ids 1..8 in insert order
-INSERT INTO loans (
-  username,
-  lockers,
-  loan_code,
-  start_date,
-  end_date,
-  take_date,
-  returned_date,
-  loaned_items_id,
-  loaned_items_name,
-  deleted,
-  note
-) VALUES
--- Active loan: bob has Laptop A (item id 1, locker "01")
-('bob',
-  '["01"]',
-  '123456',
-  '2025-11-15 09:00:00',
-  '2025-11-22 17:00:00',
-  '2025-11-15 09:15:00',
-  NULL,
-  '[1]',
-  '["Laptop A"]',
-  FALSE,
-  'Active loan - Laptop A'
-),
--- Returned loan: frank had Tripod Manfrotto (item id 5, locker "04")
-('frank',
-  '["04"]',
-  '234567',
-  '2025-10-01 10:00:00',
-  '2025-10-07 16:00:00',
-  '2025-10-01 10:05:00',
-  '2025-10-05 15:30:00',
-  '[5]',
-  '["Tripod Manfrotto"]',
-  FALSE,
-  'Completed loan'
-),
--- Future reservation: dave will take Oscilloscope Tek (item id 6, locker "05")
-('dave',
-  '["05"]',
-  '345678',
-  '2025-12-10 09:00:00',
-  '2025-12-12 17:00:00',
-  NULL,
-  NULL,
-  '[6]',
-  '["Oscilloscope Tek"]',
-  FALSE,
-  'Reserved'
-),
--- Active loan: carol has VR Headset (item id 7, locker "02")
-('carol',
-  '["02"]',
-  '456789',
-  '2025-11-10 13:00:00',
-  '2025-11-20 12:00:00',
-  '2025-11-10 13:10:00',
-  NULL,
-  '[7]',
-  '["VR Headset"]',
-  FALSE,
-  'Active loan - VR Headset'
-),
--- Soft-deleted historic loan: grace had Microphone + Tripod (item ids 4,5; lockers "03","04")
-('grace',
-  '["03","04"]',
-  '567890',
-  '2025-09-01 09:00:00',
-  '2025-09-03 17:00:00',
-  '2025-09-01 09:10:00',
-  '2025-09-03 16:45:00',
-  '[4,5]',
-  '["Microphone Rode","Tripod Manfrotto"]',
-  TRUE,
-  'Canceled/soft-deleted record'
-);
-
--- API keys (8-digit numeric keys per CHECK)
-INSERT INTO apiKeys (api_key, entry_name, last_used_at) VALUES
-('12345678', 'CI token',     '2025-11-15 08:00:00'),
-('87654321', 'Local dev',    NULL),
-('00000001', 'Monitoring',   '2025-11-10 12:30:00');

docker-compose.dev.yml

@@ -0,0 +1,56 @@
+services:
+  #  usr-frontend_v2:
+  #    container_name: borrow_system-usr-frontend
+  #    build: ./FrontendV2
+  #    ports:
+  #      - "8001:80"
+  #    restart: always
+
+  #  admin-frontend:
+  #    container_name: borrow_system-admin-frontend
+  #    build: ./admin
+  #    ports:
+  #      - "8003:80"
+  #    restart: always
+
+  # backend_v2:
+  #   container_name: borrow_system-backend_v2
+  #   build: ./backend
+  #   ports:
+  #     - "8004:8004"
+  #   environment:
+  #     NODE_ENV: production
+  #     DB_HOST: mysql_v2
+  #     DB_USER: root
+  #     DB_PASSWORD: ${DB_PASSWORD_V2}
+  #     DB_NAME: borrow_system_new
+  #   depends_on:
+  #     - mysql_v2
+  #   restart: always
+
+  mysql:
+    container_name: borrow-system_mysql
+    image: mysql:8.0
+    restart: always
+    environment:
+      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD_V2}
+      MYSQL_DATABASE: borrow_system_new
+      TZ: Europe/Berlin
+    volumes:
+      - mysql-v2-data:/var/lib/mysql
+      - ./mysql-timezone.cnf:/etc/mysql/conf.d/timezone.cnf:ro
+    ports:
+      - "3310:3306"
+
+  no-as-a-service:
+    container_name: borrow-system_naas
+    ports:
+      - "3000:3000"
+    build:
+      context: ./no-as-a-service
+      dockerfile: Dockerfile
+    restart: always
+
+volumes:
+  mysql-data:
+  mysql-v2-data:

docker-compose.yml

@@ -1,46 +1,63 @@
 services:
-  #  usr-frontend_v2:
-  #    container_name: borrow_system-usr-frontend
-  #    build: ./FrontendV2
-  #    ports:
-  #      - "8001:80"
-  #    restart: unless-stopped
+  usr-frontend:
+    container_name: borrow-system_usr-frontend
+    build:
+      context: .
+      dockerfile: frontend/Dockerfile
+      args:
+        VITE_BACKEND_URL: ${BACKEND_URL}
+    restart: always
 
-  #  admin-frontend:
-  #    container_name: borrow_system-admin-frontend
-  #    build: ./admin
-  #    ports:
-  #      - "8003:80"
-  #    restart: unless-stopped
+  admin-frontend:
+    container_name: borrow-system_admin-frontend
+    build:
+      context: .
+      dockerfile: admin/Dockerfile
+      args:
+        VITE_BACKEND_URL: ${BACKEND_URL}
+    restart: always
 
-  backend_v2:
-    container_name: borrow_system-backend_v2
-    build: ./backendV2
-    ports:
-      - "8004:8004"
+  backend:
+    container_name: borrow-system_backend
+    build:
+      context: .
+      dockerfile: backend/Dockerfile
     environment:
       NODE_ENV: production
-      DB_HOST: mysql_v2
+      DB_HOST: borrow-system_mysql
       DB_USER: root
-      DB_PASSWORD: ${DB_PASSWORD_V2}
+      DB_PASSWORD: ${DB_PASSWORD}
       DB_NAME: borrow_system_new
+      MAIL_HOST: ${MAIL_HOST}
+      MAIL_PORT: ${MAIL_PORT}
+      MAIL_USER: ${MAIL_USER}
+      MAIL_PASSWORD: ${MAIL_PASSWORD}
+      MAIL_SENDEES_CONTACT: ${MAIL_SENDEES_CONTACT}
+      MAIL_SENDEES: ${MAIL_SENDEES}
+      NAAS_URL: ${NAAS_URL}
+      SECRET_KEY: ${SECRET_KEY}
     depends_on:
-      - mysql_v2
-    restart: unless-stopped
+      - mysql
+    restart: always
 
-  mysql_v2:
-    container_name: borrow_system-mysql-v2
+  mysql:
+    container_name: borrow-system_mysql
     image: mysql:8.0
-    restart: unless-stopped
+    restart: always
     environment:
-      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD_V2}
+      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}
       MYSQL_DATABASE: borrow_system_new
       TZ: Europe/Berlin
     volumes:
       - mysql-v2-data:/var/lib/mysql
       - ./mysql-timezone.cnf:/etc/mysql/conf.d/timezone.cnf:ro
-    ports:
-      - "3310:3306"
+
+  no-as-a-service:
+    container_name: borrow-system_naas
+    build:
+      context: ./no-as-a-service
+      dockerfile: Dockerfile
+    restart: always
 
 volumes:
   mysql-data:

frontend/Dockerfile

@@ -0,0 +1,26 @@
+# Build context is the repo root (npm workspaces share one root package-lock.json)
+FROM node:22-alpine AS builder
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+COPY frontend/package.json frontend/
+COPY admin/package.json admin/
+COPY backend/package.json backend/
+RUN npm ci -w frontend
+
+ARG VITE_BACKEND_URL
+ENV VITE_BACKEND_URL=$VITE_BACKEND_URL
+
+COPY frontend/ frontend/
+RUN npm run build -w frontend
+
+FROM nginx:alpine AS runner
+
+WORKDIR /usr/share/nginx/html
+COPY --from=builder /app/frontend/dist .
+
+COPY frontend/nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

frontend/index.html

@@ -2,7 +2,11 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <link
+      rel="icon"
+      type="image/png"
+      href="/icon_borrow-system-frontend_dark.png"
+    />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Ausleihsystem</title>
   </head>

frontend/nginx.conf

@@ -14,7 +14,7 @@ server {
   }
 
   location /backend/ {
-    proxy_pass http://borrow_system-backend_v2:8004/;
+    proxy_pass http://borrow-system_backend:8004/;
   }
 
   location ~* \.(?:js|mjs|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {

frontend/package.json

@@ -1,7 +1,7 @@
 {
-  "name": "admin",
+  "name": "frontend",
   "private": true,
-  "version": "0.0.0",
+  "version": "2.1.2-dev",
   "type": "module",
   "scripts": {
     "dev": "vite",
@@ -12,6 +12,7 @@
   "dependencies": {
     "@chakra-ui/react": "^3.28.0",
     "@emotion/react": "^11.14.0",
+    "@lottiefiles/dotlottie-react": "^0.19.0",
     "@tailwindcss/vite": "^4.1.11",
     "@tanstack/react-query": "^5.90.5",
     "i18next": "^25.6.0",
@@ -44,6 +45,7 @@
     "eslint-plugin-react-hooks": "^5.2.0",
     "eslint-plugin-react-refresh": "^0.4.20",
     "globals": "^16.3.0",
+    "prettier": "^3.9.10",
     "typescript": "~5.8.3",
     "typescript-eslint": "^8.39.0",
     "vite": "^7.1.0",

frontend/src/App.tsx

@@ -12,7 +12,7 @@ import { triggerLogoutAtom } from "@/states/Atoms";
 import { MyLoansPage } from "./pages/MyLoansPage";
 import Landingpage from "./pages/Landingpage";
 import { changeLanguage } from "i18next";
-import { Box, Flex } from "@chakra-ui/react";
+import { Flex } from "@chakra-ui/react";
 import { Footer } from "./components/footer/Footer";
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { API_BASE } from "@/config/api.config";
@@ -72,8 +72,8 @@ function App() {
 
   return (
     <QueryClientProvider client={queryClient}>
-      <Flex direction="column" minH="100vh">
-        <Box as="main" flex="1">
+      <Flex direction="column" minH="100dvh">
+        <Flex as="main" flex="1" direction="column">
           <UserContext.Provider value={user}>
             <BrowserRouter>
               <Routes>
@@ -88,7 +88,7 @@ function App() {
               </Routes>
             </BrowserRouter>
           </UserContext.Provider>
-        </Box>
+        </Flex>
         <Footer />
       </Flex>
     </QueryClientProvider>

frontend/src/components/DeactivatedServices.tsx

@@ -0,0 +1,67 @@
+import { Alert, Stack, VStack, Spinner, Text, Heading } from "@chakra-ui/react";
+import { useEffect, useState } from "react";
+import { API_BASE } from "@/config/api.config";
+import Cookies from "js-cookie";
+import { useTranslation } from "react-i18next";
+
+export const DeactivatedServices = () => {
+  const { t } = useTranslation();
+
+  const [deactivatedServices, setDeactivatedServices] = useState<
+    { function_name: string }[]
+  >([]);
+  const [isLoading, setIsLoading] = useState(false);
+
+  useEffect(() => {
+    const fetchDeactivatedServices = async () => {
+      setIsLoading(true);
+      try {
+        const response = await fetch(
+          `${API_BASE}/api/users/deactivated-services`,
+          {
+            headers: {
+              Authorization: `Bearer ${Cookies.get("token") || ""}`,
+            },
+          },
+        );
+
+        if (response.ok) {
+          const data = await response.json();
+          setDeactivatedServices(data);
+        } else {
+          console.error("Failed to fetch deactivated services");
+        }
+      } catch (error) {
+        console.error("Error fetching deactivated services:", error);
+      }
+      setIsLoading(false);
+    };
+
+    fetchDeactivatedServices();
+  }, []);
+
+  return (
+    <>
+      {deactivatedServices.length >= 1 && (
+        <Stack gap="2">
+          <Heading size={"xl"}>{t("deactivated-services")}</Heading>
+          {isLoading && (
+            <VStack colorPalette="teal">
+              <Spinner color="colorPalette.600" />
+              <Text color="colorPalette.600">{t("loading")}</Text>
+            </VStack>
+          )}
+          {deactivatedServices.length >= 1 &&
+            deactivatedServices.map((item) => (
+              <Alert.Root key={item.function_name} status="warning">
+                <Alert.Indicator />
+                <Alert.Title>
+                  {item.function_name} {t("is-deactivated")}
+                </Alert.Title>
+              </Alert.Root>
+            ))}
+        </Stack>
+      )}
+    </>
+  );
+};

frontend/src/components/Header.tsx

@@ -1,6 +1,7 @@
 import {
   Button,
   Flex,
+  Image,
   Heading,
   Stack,
   Text,
@@ -68,6 +69,7 @@ export const Header = () => {
       className="mb-6"
       position="relative"
       pr={{ base: 10, md: 0 }} // Platz für den Mobile-Button rechts
+      marginBottom={1}
     >
       {/* Mobile: Drei-Punkte-Button, vertikal zentriert im Header */}
       <Box
@@ -142,7 +144,7 @@ export const Header = () => {
                 value="help"
                 onSelect={() =>
                   window.open(
-                    "https://git.the1s.de/Matthias-Claudius-Schule/borrow-system/wiki",
+                    "https://git.the1s.de/Matthias-Claudius-Schule/borrow-system/wiki/?action=_pages",
                     "_blank",
                     "noopener,noreferrer",
                   )
@@ -190,6 +192,13 @@ export const Header = () => {
         <Stack gap={1}>
           {/* Titelzeile ohne Mobile-Menu (wurde nach oben verlegt) */}
           <Flex align="center" justify="space-between" gap={2}>
+            <Image
+              src="/icon_borrow-system-frontend_dark.png"
+              alt="borrow-system logo"
+              boxSize="10"
+              objectFit="contain"
+              flexShrink={0}
+            />
             <Heading
               size="2xl"
               className="tracking-tight text-slate-900 dark:text-slate-100"
@@ -279,7 +288,7 @@ export const Header = () => {
           </Button>
 
           <a
-            href="https://git.the1s.de/Matthias-Claudius-Schule/borrow-system/wiki"
+            href="https://git.the1s.de/Matthias-Claudius-Schule/borrow-system/wiki/?action=_pages"
             target="_blank"
           >
             <Button variant="ghost">

frontend/src/components/UserDialogue.tsx

@@ -36,12 +36,43 @@ export const UserDialogue = (props: UserDialogueProps) => {
   const [msgTitle, setMsgTitle] = useState("");
   const [msgDescription, setMsgDescription] = useState("");
 
+  const [isMsgNAAS, setIsMsgNAAS] = useState(false);
+  const [msgStatusNAAS, setMsgStatusNAAS] = useState<"error" | "success">(
+    "error",
+  );
+  const [msgTitleNAAS, setMsgTitleNAAS] = useState("");
+  const [msgDescriptionNAAS, setMsgDescriptionNAAS] = useState("");
+
   const [oldPassword, setOldPassword] = useState("");
   const [newPassword, setNewPassword] = useState("");
   const [confirmPassword, setConfirmPassword] = useState("");
 
   // Dialog control
   const [isPwOpen, setPwOpen] = useState(false);
+  const [naasDialog, setNaasDialog] = useState(false);
+  const [naas, setNaas] = useState("");
+
+  const openNAAS = async () => {
+    try {
+      const response = await fetch(`${API_BASE}/no`, {
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: `Bearer ${Cookies.get("token")}`,
+        },
+      });
+
+      const data = await response.json();
+      setNaas(data.reason);
+      setNaasDialog(true);
+    } catch (error) {
+      setMsgStatusNAAS("error");
+      setMsgTitleNAAS(t("naas-error"));
+      setMsgDescriptionNAAS(t("naas-error-desc"));
+      setIsMsgNAAS(true);
+
+      console.log(msgStatusNAAS, msgTitleNAAS, msgDescriptionNAAS);
+    }
+  };
 
   const changePassword = async () => {
     if (newPassword !== confirmPassword) {
@@ -147,14 +178,31 @@ export const UserDialogue = (props: UserDialogueProps) => {
             </Button>
           </Stack>
         </Card.Body>
-        <Card.Footer justifyContent="flex-end">
-          <Button variant="outline" onClick={() => props.setUserDialog(false)}>
-            {t("cancel")}
-          </Button>
+        <Card.Footer>
+          <Stack w="100%" gap={3}>
+            {isMsgNAAS && (
+              <MyAlert
+                status={msgStatusNAAS}
+                title={msgTitleNAAS}
+                description={msgDescriptionNAAS}
+              />
+            )}
+            <HStack justify="flex-end" gap={2} wrap="wrap">
+              <Button
+                variant="outline"
+                onClick={() => props.setUserDialog(false)}
+              >
+                {t("cancel")}
+              </Button>
+              <Button variant="outline" onClick={() => openNAAS()}>
+                {t("try-naas")}
+              </Button>
+            </HStack>
+          </Stack>
         </Card.Footer>
       </Card.Root>
 
-      {/* Passwort-Dialog (kontrolliert) */}
+      {/* Passwort-Dialog */}
       <Dialog.Root open={isPwOpen} onOpenChange={(e: any) => setPwOpen(e.open)}>
         <Portal>
           <Dialog.Backdrop />
@@ -215,6 +263,31 @@ export const UserDialogue = (props: UserDialogueProps) => {
           </Dialog.Positioner>
         </Portal>
       </Dialog.Root>
+
+      <HStack wrap="wrap" gap="4">
+        <Dialog.Root
+          placement={"center"}
+          open={naasDialog}
+          motionPreset="slide-in-bottom"
+        >
+          <Portal>
+            <Dialog.Backdrop />
+            <Dialog.Positioner>
+              <Dialog.Content>
+                <Dialog.Header>
+                  <Dialog.Title>{t("naas-header")}</Dialog.Title>
+                </Dialog.Header>
+                <Dialog.Body>
+                  <p>{naas}</p>
+                </Dialog.Body>
+                <Dialog.CloseTrigger asChild>
+                  <CloseButton onClick={() => setNaasDialog(false)} size="sm" />
+                </Dialog.CloseTrigger>
+              </Dialog.Content>
+            </Dialog.Positioner>
+          </Portal>
+        </Dialog.Root>
+      </HStack>
     </Flex>
   );
 };

frontend/src/components/dotLottie.tsx

@@ -0,0 +1,28 @@
+import { DotLottieReact } from "@lottiefiles/dotlottie-react";
+
+export const unlockAnimation = () => {
+  return (
+    <DotLottieReact
+      src="https://lottie.host/f839baa1-9c64-44c4-9386-f0e4c87ab208/2Iw1m4k86d.lottie"
+      autoplay
+    />
+  );
+};
+
+export const approvalAnimation = () => {
+  return (
+    <DotLottieReact
+      src="https://lottie.host/b7257009-9e3f-43e2-8112-a176f4696e4c/iQxxqAVOGX.lottie"
+      autoplay
+    />
+  );
+};
+
+export const logoutAnimation = () => {
+  return (
+    <DotLottieReact
+      src="https://lottie.host/4975758c-de38-4d15-9f74-927709751d32/v8FtKpnD1y.lottie"
+      autoplay
+    />
+  );
+};

frontend/src/components/footer/Footer.tsx

@@ -9,10 +9,9 @@ export const Footer = () => {
       as="footer"
       py={4}
       textAlign="center"
-      position="fixed"
-      bottom="0"
-      left="0"
-      right="0"
+      width="100%"
+      flexShrink={0}
+      fontSize="sm"
     >
       Made with ❤️ by Theis Gaedigk - Class of 2019 at MCS-Bochum
       <br />

frontend/src/components/ui/password-input.tsx

@@ -0,0 +1,159 @@
+"use client"
+
+import type {
+  ButtonProps,
+  GroupProps,
+  InputProps,
+  StackProps,
+} from "@chakra-ui/react"
+import {
+  Box,
+  HStack,
+  IconButton,
+  Input,
+  InputGroup,
+  Stack,
+  mergeRefs,
+  useControllableState,
+} from "@chakra-ui/react"
+import * as React from "react"
+import { LuEye, LuEyeOff } from "react-icons/lu"
+
+export interface PasswordVisibilityProps {
+  /**
+   * The default visibility state of the password input.
+   */
+  defaultVisible?: boolean
+  /**
+   * The controlled visibility state of the password input.
+   */
+  visible?: boolean
+  /**
+   * Callback invoked when the visibility state changes.
+   */
+  onVisibleChange?: (visible: boolean) => void
+  /**
+   * Custom icons for the visibility toggle button.
+   */
+  visibilityIcon?: { on: React.ReactNode; off: React.ReactNode }
+}
+
+export interface PasswordInputProps
+  extends InputProps,
+    PasswordVisibilityProps {
+  rootProps?: GroupProps
+}
+
+export const PasswordInput = React.forwardRef<
+  HTMLInputElement,
+  PasswordInputProps
+>(function PasswordInput(props, ref) {
+  const {
+    rootProps,
+    defaultVisible,
+    visible: visibleProp,
+    onVisibleChange,
+    visibilityIcon = { on: <LuEye />, off: <LuEyeOff /> },
+    ...rest
+  } = props
+
+  const [visible, setVisible] = useControllableState({
+    value: visibleProp,
+    defaultValue: defaultVisible || false,
+    onChange: onVisibleChange,
+  })
+
+  const inputRef = React.useRef<HTMLInputElement>(null)
+
+  return (
+    <InputGroup
+      endElement={
+        <VisibilityTrigger
+          disabled={rest.disabled}
+          onPointerDown={(e) => {
+            if (rest.disabled) return
+            if (e.button !== 0) return
+            e.preventDefault()
+            setVisible(!visible)
+          }}
+        >
+          {visible ? visibilityIcon.off : visibilityIcon.on}
+        </VisibilityTrigger>
+      }
+      {...rootProps}
+    >
+      <Input
+        {...rest}
+        ref={mergeRefs(ref, inputRef)}
+        type={visible ? "text" : "password"}
+      />
+    </InputGroup>
+  )
+})
+
+const VisibilityTrigger = React.forwardRef<HTMLButtonElement, ButtonProps>(
+  function VisibilityTrigger(props, ref) {
+    return (
+      <IconButton
+        tabIndex={-1}
+        ref={ref}
+        me="-2"
+        aspectRatio="square"
+        size="sm"
+        variant="ghost"
+        height="calc(100% - {spacing.2})"
+        aria-label="Toggle password visibility"
+        {...props}
+      />
+    )
+  },
+)
+
+interface PasswordStrengthMeterProps extends StackProps {
+  max?: number
+  value: number
+}
+
+export const PasswordStrengthMeter = React.forwardRef<
+  HTMLDivElement,
+  PasswordStrengthMeterProps
+>(function PasswordStrengthMeter(props, ref) {
+  const { max = 4, value, ...rest } = props
+
+  const percent = (value / max) * 100
+  const { label, colorPalette } = getColorPalette(percent)
+
+  return (
+    <Stack align="flex-end" gap="1" ref={ref} {...rest}>
+      <HStack width="full" {...rest}>
+        {Array.from({ length: max }).map((_, index) => (
+          <Box
+            key={index}
+            height="1"
+            flex="1"
+            rounded="sm"
+            data-selected={index < value ? "" : undefined}
+            layerStyle="fill.subtle"
+            colorPalette="gray"
+            _selected={{
+              colorPalette,
+              layerStyle: "fill.solid",
+            }}
+          />
+        ))}
+      </HStack>
+      {label && <HStack textStyle="xs">{label}</HStack>}
+    </Stack>
+  )
+})
+
+function getColorPalette(percent: number) {
+  switch (true) {
+    case percent < 33:
+      return { label: "Low", colorPalette: "red" }
+    case percent < 66:
+      return { label: "Medium", colorPalette: "orange" }
+    default:
+      return { label: "High", colorPalette: "green" }
+  }
+}

frontend/src/main.tsx

@@ -14,5 +14,5 @@ createRoot(document.getElementById("root")!).render(
     <Provider>
       <App />
     </Provider>
-  </StrictMode>
+  </StrictMode>,
 );

frontend/src/pages/ContactPage.tsx

@@ -1,4 +1,13 @@
-import { Field, Textarea, Button, Alert, Container } from "@chakra-ui/react";
+import {
+  Field,
+  Textarea,
+  Button,
+  Alert,
+  Container,
+  Text,
+  VStack,
+  Spinner,
+} from "@chakra-ui/react";
 import { useTranslation } from "react-i18next";
 import { useState } from "react";
 import { API_BASE } from "@/config/api.config";
@@ -14,9 +23,21 @@ interface Alert {
 export const ContactPage = () => {
   const { t } = useTranslation();
   const [message, setMessage] = useState("");
+  const [isSending, setIsSending] = useState(false);
   const [alert, setAlert] = useState<Alert | null>(null);
 
   const sendMessage = async () => {
+    setIsSending(true);
+    if (message.trim() === "") {
+      setAlert({
+        type: "error",
+        headline: t("contactPage_messageErrorHeadline"),
+        text: t("contactPage_messageErrorText2"),
+      });
+      setIsSending(false);
+      return;
+    }
+
     // Logic to send the message
     const result = await fetch(`${API_BASE}/api/users/contact`, {
       method: "POST",
@@ -35,6 +56,12 @@ export const ContactPage = () => {
         text: t("contactPage_successText"),
       });
       setMessage("");
+    } else if (result.status === 503) {
+      setAlert({
+        type: "error",
+        headline: t("serviceDeactivatedHeadline"),
+        text: t("contactPage_serviceDeactivatedText"),
+      });
     } else {
       setAlert({
         type: "error",
@@ -42,6 +69,7 @@ export const ContactPage = () => {
         text: t("contactPage_errorText"),
       });
     }
+    setIsSending(false);
   };
 
   return (
@@ -49,7 +77,7 @@ export const ContactPage = () => {
       <Header />
       <Field.Root invalid={message === ""}>
         <Field.Label>
-          {t("contactPage_messageLabel")}
+          <Text>{t("contactPage_messageDescription")}</Text>
           <Field.RequiredIndicator />
         </Field.Label>
         <Textarea
@@ -71,6 +99,12 @@ export const ContactPage = () => {
           </Alert.Content>
         </Alert.Root>
       )}
+      {isSending && (
+        <VStack colorPalette="teal">
+          <Spinner color="colorPalette.600" />
+          <Text color="colorPalette.600">{t("loading")}</Text>
+        </VStack>
+      )}
       <Button onClick={sendMessage}>{t("contactPage_sendButton")}</Button>
     </Container>
   );

frontend/src/pages/HomePage.tsx

@@ -0,0 +1,224 @@
+import {
+  Container,
+  Stack,
+  Text,
+  Button,
+  Input,
+  Spinner,
+  VStack,
+  Table,
+  InputGroup,
+  Span,
+} from "@chakra-ui/react";
+import { useAtom } from "jotai";
+import { getBorrowableItems } from "@/utils/Fetcher";
+import { useState } from "react";
+import MyAlert from "@/components/myChakra/MyAlert";
+import { borrowAbleItemsAtom } from "@/states/Atoms";
+import { createLoan } from "@/utils/Fetcher";
+import { Header } from "@/components/Header";
+import { useTranslation } from "react-i18next";
+import { approvalAnimation } from "@/components/dotLottie";
+import { DeactivatedServices } from "@/components/DeactivatedServices";
+
+export interface User {
+  username: string;
+  role: number;
+}
+
+export const HomePage = () => {
+  const { t } = useTranslation();
+
+  const [showAnimation, setShowAnimation] = useState(false);
+
+  const [borrowableItems, setBorrowableItems] = useAtom(borrowAbleItemsAtom);
+  const [startDate, setStartDate] = useState("");
+  const [endDate, setEndDate] = useState("");
+  const [isLoadingA, setIsLoadingA] = useState(false);
+  const [selectedItems, setSelectedItems] = useState<number[]>([]);
+
+  const MAX_CHARACTERS = 500;
+  const [note, setNote] = useState("");
+
+  // Error handling states
+  const [isMsg, setIsMsg] = useState(false);
+  const [msgStatus, setMsgStatus] = useState<"error" | "success">("error");
+  const [msgTitle, setMsgTitle] = useState("");
+  const [msgDescription, setMsgDescription] = useState("");
+
+  const handleCheckboxChange = (itemId: number) => {
+    setSelectedItems((prevSelected) =>
+      prevSelected.includes(itemId)
+        ? prevSelected.filter((id) => id !== itemId)
+        : [...prevSelected, itemId],
+    );
+  };
+
+  const showApprovalAnimation = (seconds: number) => {
+    const milliseconds = seconds * 1000;
+
+    setShowAnimation(true);
+    window.setTimeout(() => {
+      setShowAnimation(false);
+    }, milliseconds);
+  };
+
+  return (
+    <>
+      {showAnimation && (
+        <div className="fixed inset-0 z-9999 flex items-center justify-center pointer-events-none">
+          <div>{approvalAnimation()}</div>
+        </div>
+      )}
+      <Container className="px-6 sm:px-8 pt-10">
+        <Header />
+        <DeactivatedServices />
+        {isMsg && (
+          <MyAlert
+            status={msgStatus}
+            title={msgTitle}
+            description={msgDescription}
+          />
+        )}
+        <Stack as="main">
+          <Text>{t("timezone-info")}</Text>
+          <label htmlFor="startDate">
+            <strong>
+              <Text>{t("start-date")}</Text>
+            </strong>
+          </label>
+          <Input
+            id="startDate"
+            placeholder={t("start-date")}
+            type="datetime-local"
+            value={startDate}
+            onChange={(e) => setStartDate(e.target.value)}
+          />
+          <label htmlFor="endDate">
+            <strong>
+              <Text>{t("end-date")}</Text>
+            </strong>
+          </label>
+          <Input
+            id="endDate"
+            placeholder={t("end-date")}
+            type="datetime-local"
+            value={endDate}
+            onChange={(e) => setEndDate(e.target.value)}
+          />
+          <Button
+            onClick={async () => {
+              setIsLoadingA(true);
+              if (!startDate || !endDate) {
+                setMsgStatus("error");
+                setMsgTitle(t("missing-fields"));
+                setMsgDescription(t("missing-fields-desc"));
+                setIsMsg(true);
+                setIsLoadingA(false);
+                return;
+              }
+              await getBorrowableItems(startDate, endDate).then((response) => {
+                setIsLoadingA(false);
+                if (response && response.status === "error") {
+                  setMsgStatus("error");
+                  setMsgTitle(response.title || t("error"));
+                  setMsgDescription(response.description || t("unknown-error"));
+                  setIsMsg(true);
+                  return;
+                }
+                setBorrowableItems(response.data);
+                setIsMsg(false);
+              });
+            }}
+          >
+            {t("get-borrowable-items")}
+          </Button>
+          {borrowableItems.length > 0 && (
+            <Table.ScrollArea borderWidth="1px" rounded="md">
+              <Table.Root size="sm" stickyHeader>
+                <Table.Header>
+                  <Table.Row bg="bg.subtle">
+                    <Table.ColumnHeader></Table.ColumnHeader>
+                    <Table.ColumnHeader>{t("item")}</Table.ColumnHeader>
+                  </Table.Row>
+                </Table.Header>
+
+                <Table.Body>
+                  {borrowableItems.map((item) => (
+                    <Table.Row key={item.id}>
+                      <Table.Cell>
+                        <input
+                          onChange={() => handleCheckboxChange(item.id)}
+                          type="checkbox"
+                          name={item.id}
+                          id={item.id}
+                        />
+                      </Table.Cell>
+                      <Table.Cell>{item.item_name}</Table.Cell>
+                    </Table.Row>
+                  ))}
+                  <Table.Row>
+                    <Table.Cell colSpan={2}>
+                      <InputGroup
+                        endElement={
+                          <Span color="fg.muted" textStyle="xs">
+                            {note.length} / {MAX_CHARACTERS}
+                          </Span>
+                        }
+                      >
+                        <Input
+                          placeholder={t("optional-note")}
+                          value={note}
+                          maxLength={MAX_CHARACTERS}
+                          onChange={(e) => {
+                            setNote(
+                              e.currentTarget.value.slice(0, MAX_CHARACTERS),
+                            );
+                          }}
+                        />
+                      </InputGroup>
+                    </Table.Cell>
+                  </Table.Row>
+                </Table.Body>
+              </Table.Root>
+            </Table.ScrollArea>
+          )}
+          {selectedItems.length >= 1 && (
+            <Button
+              onClick={() => {
+                setIsLoadingA(true);
+                createLoan(selectedItems, startDate, endDate, note).then(
+                  (response) => {
+                    setIsLoadingA(false);
+                    if (response.status === "error") {
+                      setMsgStatus("error");
+                      setMsgTitle(response.title || t("error"));
+                      setMsgDescription(
+                        response.description || t("unknown-error"),
+                      );
+                      setIsMsg(true);
+                      return;
+                    }
+                    showApprovalAnimation(3);
+                    setMsgStatus("success");
+                    setMsgTitle(t("success"));
+                    setMsgDescription(t("loan-success"));
+                    setIsMsg(true);
+                  },
+                );
+              }}
+            >
+              {t("create-loan")}
+            </Button>
+          )}
+          {isLoadingA && (
+            <VStack colorPalette="teal">
+              <Spinner color="colorPalette.600" />
+              <Text color="colorPalette.600">{t("loading")}</Text>
+            </VStack>
+          )}
+        </Stack>
+      </Container>
+    </>
+  );
+};

frontend/src/pages/Landingpage.tsx

@@ -9,12 +9,13 @@ import {
   Card,
   SimpleGrid,
   Button,
+  Container,
 } from "@chakra-ui/react";
 import MyAlert from "@/components/myChakra/MyAlert";
 import { useTranslation } from "react-i18next";
 import { API_BASE } from "@/config/api.config";
 import Cookies from "js-cookie";
-import { useNavigate } from "react-router-dom";
+import { Header } from "@/components/Header";
 
 export const formatDateTime = (value: string | null | undefined) => {
   if (!value) return "N/A";
@@ -32,6 +33,7 @@ type Loan = {
   returned_date: string | null;
   take_date: string | null;
   loaned_items_name: string[] | string;
+  note: string | null;
 };
 
 type Device = {
@@ -46,7 +48,6 @@ type Device = {
 
 const Landingpage: React.FC = () => {
   const { t } = useTranslation();
-  const navigate = useNavigate();
 
   const [isLoading, setIsLoading] = useState(false);
   const [loans, setLoans] = useState<Loan[]>([]);
@@ -59,7 +60,7 @@ const Landingpage: React.FC = () => {
   const setError = (
     status: "error" | "success",
     message: string,
-    description: string
+    description: string,
   ) => {
     setIsError(false);
     setErrorStatus(status);
@@ -78,6 +79,16 @@ const Landingpage: React.FC = () => {
             Authorization: `Bearer ${Cookies.get("token")}`,
           },
         });
+        if (loanRes.status === 503) {
+          setError(
+            "error",
+            t("serviceDeactivatedHeadline"),
+            t("loan_page_serviceDeactivatedText"),
+          );
+          setIsLoading(false);
+          return;
+        }
+
         const loanData = await loanRes.json();
         if (Array.isArray(loanData)) {
           setLoans(loanData);
@@ -85,7 +96,7 @@ const Landingpage: React.FC = () => {
           setError(
             "error",
             t("error-by-loading"),
-            t("unexpected-date-format_loan")
+            t("unexpected-date-format_loan"),
           );
         }
 
@@ -102,7 +113,7 @@ const Landingpage: React.FC = () => {
           setError(
             "error",
             t("error-by-loading"),
-            t("unexpected-date-format_device")
+            t("unexpected-date-format_device"),
           );
         }
       } catch (e) {
@@ -115,14 +126,8 @@ const Landingpage: React.FC = () => {
   }, []);
 
   return (
-    <>
-      <Heading as="h1" size="lg" mb={2}>
-        Matthias-Claudius-Schule Technik
-      </Heading>
-
-      <Button onClick={() => navigate("/", { replace: true })}>
-        {t("back")}
-      </Button>
+    <Container className="px-6 sm:px-8 pt-10">
+      <Header />
 
       <Heading as="h2" size="md" mb={4}>
         {t("all-loans")}
@@ -168,6 +173,9 @@ const Landingpage: React.FC = () => {
               <Table.ColumnHeader>
                 <strong>{t("return-date")}</strong>
               </Table.ColumnHeader>
+              <Table.ColumnHeader>
+                <strong>{t("note")}</strong>
+              </Table.ColumnHeader>
             </Table.Row>
           </Table.Header>
           <Table.Body>
@@ -184,6 +192,7 @@ const Landingpage: React.FC = () => {
                 </Table.Cell>
                 <Table.Cell>{formatDateTime(loan.take_date)}</Table.Cell>
                 <Table.Cell>{formatDateTime(loan.returned_date)}</Table.Cell>
+                <Table.Cell>{loan.note}</Table.Cell>
               </Table.Row>
             ))}
           </Table.Body>
@@ -260,7 +269,7 @@ const Landingpage: React.FC = () => {
           </HStack>
         </Button>
       </HStack>
-    </>
+    </Container>
   );
 };
 

frontend/src/pages/LoginPage.tsx

@@ -0,0 +1,159 @@
+import { useState, useEffect } from "react";
+import MyAlert from "../components/myChakra/MyAlert";
+import { Button, Card, Field, Input, Stack } from "@chakra-ui/react";
+import { setIsLoggedInAtom, triggerLogoutAtom } from "@/states/Atoms";
+import { useAtom } from "jotai";
+import Cookies from "js-cookie";
+import { useNavigate, useLocation } from "react-router-dom";
+import { PasswordInput } from "@/components/ui/password-input";
+import { useTranslation } from "react-i18next";
+import { API_BASE } from "@/config/api.config";
+import { unlockAnimation } from "@/components/dotLottie";
+import { logoutAnimation } from "@/components/dotLottie";
+
+export const LoginPage = () => {
+  const { t } = useTranslation();
+
+  const [isLoggedIn, setIsLoggedIn] = useAtom(setIsLoggedInAtom);
+  const [triggerLogout, setTriggerLogout] = useAtom(triggerLogoutAtom);
+  const [showAnimation, setShowAnimation] = useState(false);
+  const [showLogout, setShowLogout] = useState(false);
+  const navigate = useNavigate();
+  const location = useLocation();
+  const from = location.state?.from?.pathname || "/";
+
+  useEffect(() => {
+    if (triggerLogout) {
+      setShowLogout(true);
+      window.setTimeout(() => {
+        setShowLogout(false);
+      }, 4500);
+    }
+
+    if (!isLoggedIn) return;
+
+    // Existing sessions should redirect immediately, fresh logins wait for animation.
+    if (!showAnimation) {
+      navigate(from, { replace: true });
+      return;
+    }
+
+    const timeoutId = window.setTimeout(() => {
+      navigate(from, { replace: true });
+      window.location.reload(); // keeps user context in sync after login
+    }, 3000);
+
+    return () => window.clearTimeout(timeoutId);
+  }, [isLoggedIn, showAnimation, navigate, from]);
+
+  const loginFnc = async (username: string, password: string) => {
+    const response = await fetch(`${API_BASE}/api/users/login`, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ username, password }),
+    });
+
+    const data = await response.json();
+
+    if (!response.ok) {
+      return {
+        success: false,
+        message: data.message ?? t("login-failed"),
+        description: data.description ?? "",
+      };
+    }
+
+    setShowAnimation(true);
+
+    Cookies.set("token", data.token);
+    setIsLoggedIn(true);
+    return { success: true };
+  };
+
+  const [username, setUsername] = useState("");
+  const [password, setPassword] = useState("");
+  const [isError, setIsError] = useState(false);
+  const [errorMsg, setErrorMsg] = useState("");
+  const [errorDsc, setErrorDsc] = useState("");
+
+  const handleLogin = async () => {
+    const result = await loginFnc(username, password);
+    if (!result.success) {
+      setErrorMsg(result.message);
+      setErrorDsc(result.description);
+      setIsError(true);
+      return;
+    }
+    setTriggerLogout(false);
+  };
+
+  return (
+    <>
+      {showAnimation && (
+        <div className="fixed inset-0 z-9999 flex items-center justify-center pointer-events-none">
+          <div>{unlockAnimation()}</div>
+        </div>
+      )}
+
+      {showLogout && (
+        <div className="fixed inset-0 z-9999 flex items-center justify-center pointer-events-none">
+          <div>{logoutAnimation()}</div>
+        </div>
+      )}
+
+      <div className="flex flex-1 items-center justify-center p-4">
+        <form onSubmit={(e) => e.preventDefault()}>
+          <Card.Root maxW="sm">
+            <Card.Header>
+              <Card.Title>{t("login")}</Card.Title>
+              <Card.Description>{t("enter-credentials")}</Card.Description>
+            </Card.Header>
+            <Card.Body>
+              <Stack gap="4" w="full">
+                <Field.Root>
+                  <Field.Label>{t("username")}</Field.Label>
+                  <Input
+                    value={username}
+                    onChange={(e) => setUsername(e.target.value)}
+                  />
+                </Field.Root>
+                <Field.Root>
+                  <Field.Label>{t("password")}</Field.Label>
+                  <PasswordInput
+                    value={password}
+                    onChange={(e) => setPassword(e.target.value)}
+                  />
+                </Field.Root>
+              </Stack>
+            </Card.Body>
+            <Card.Footer justifyContent="flex-end">
+              {isError && (
+                <MyAlert
+                  status="error"
+                  title={errorMsg}
+                  description={errorDsc}
+                />
+              )}
+              <Button
+                type="submit"
+                onClick={() => handleLogin()}
+                variant="solid"
+              >
+                Login
+              </Button>
+            </Card.Footer>
+            <Card.Footer justifyContent="flex-end">
+              {triggerLogout && (
+                <MyAlert
+                  status="success"
+                  title={t("logout-success")}
+                  description={t("logout-success-desc")}
+                />
+              )}
+            </Card.Footer>
+          </Card.Root>
+        </form>
+      </div>
+    </>
+  );
+};

frontend/src/pages/MyLoansPage.tsx

@@ -52,6 +52,13 @@ export const MyLoansPage = () => {
         });
 
         if (!res.ok) {
+          if (res.status === 503) {
+            setMsgStatus("error");
+            setMsgTitle(t("serviceDeactivatedHeadline"));
+            setMsgDescription(t("loan_page_serviceDeactivatedText"));
+            setIsMsg(true);
+            return;
+          }
           setMsgStatus("error");
           setMsgTitle(t("error"));
           setMsgDescription(t("error-fetching-loans"));
@@ -84,6 +91,14 @@ export const MyLoansPage = () => {
       });
 
       if (!res.ok) {
+        if (res.status === 507) {
+          setMsgStatus("error");
+          setMsgTitle(t("error"));
+          setMsgDescription(t("error-deleting-loan-507"));
+          setIsMsg(true);
+          return;
+        }
+
         setMsgStatus("error");
         setMsgTitle(t("error"));
         setMsgDescription(t("error-deleting-loan"));
@@ -106,10 +121,28 @@ export const MyLoansPage = () => {
 
   const formatDate = (iso: string | null) => {
     if (!iso) return "-";
-    const m = iso.match(/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2})/);
-    if (!m) return iso;
-    const [, y, M, d, h, min] = m;
-    return `${d}.${M}.${y} ${h}:${min}`;
+    const date = new Date(iso);
+    if (isNaN(date.getTime())) return iso;
+    return date.toLocaleString("de-DE", {
+      timeZone: "Europe/Berlin",
+      day: "2-digit",
+      month: "2-digit",
+      year: "numeric",
+      hour: "2-digit",
+      minute: "2-digit",
+    });
+  };
+
+  const dateAndTime = (isISO: boolean) => {
+    const date = new Date();
+
+    if (isISO) {
+      return date.toISOString();
+    }
+
+    if (!isISO) {
+      return date;
+    }
   };
 
   const handleTakeAction = async (loanCode: string) => {
@@ -136,7 +169,7 @@ export const MyLoansPage = () => {
       setLoans((prev) =>
         prev.map((loan) =>
           loan.loan_code === loanCode
-            ? { ...loan, take_date: new Date().toISOString() }
+            ? { ...loan, take_date: dateAndTime(true) }
             : loan,
         ),
       );
@@ -176,7 +209,7 @@ export const MyLoansPage = () => {
       setLoans((prev) =>
         prev.map((loan) =>
           loan.loan_code === loanCode
-            ? { ...loan, returned_date: new Date().toISOString() }
+            ? { ...loan, returned_date: dateAndTime(true) }
             : loan,
         ),
       );