added source code button

added footer component
refactor help site
2025-08-21 18:53:33 +02:00 · 2025-08-21 18:53:18 +02:00 · 2025-08-21 13:00:01 +02:00 · 2025-08-21 12:48:03 +02:00 · 2025-08-21 12:44:15 +02:00 · 2025-08-21 00:38:28 +02:00
32 changed files with 966 additions and 631 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -112,3 +112,5 @@ backend/public/uploads/
 config/
 secrets/
 keys/
+
+ToDo.txt
--- a/Docs/HELP.md
+++ b/Docs/HELP.md
@@ -0,0 +1,11 @@
+# Hilfe Seite
+
+Hier finden Sie Informationen zur Verwendung des Systems.
+
+## Unerwartete Probleme
+
+Falls unerwartetet Probleme im Web oder im Safe auftreten sollten, können Sie den Support via Teams kontaktieren.
+
+**Kontaktpersonen:**
+- Theis Gaedigk (Web & Safe)
+- Niklas Brunke (Safe)
--- a/Docs/README.md
+++ b/Docs/README.md
@@ -0,0 +1,5 @@
+# Backend API Documentation
+
+This document provides an overview of the backend API endpoints and their usage.
+
+To get to that information, go to the `backend_API_docs` directory.
--- a/Docs/backend_API_docs/README.md
+++ b/Docs/backend_API_docs/README.md
@@ -1,283 +1,306 @@
-# Borrow System Backend API
+# Backend API docs

-Base URL: `http://localhost:8002`
+If you want to cooperate with me, or build something new with my backend API, feel free to reach out!

- App server: [backend/server.js](backend/server.js)
- Auth/JWT: [`authenticate`](backend/services/tokenService.js), [`generateToken`](backend/services/tokenService.js)
- App API (JWT): [backend/routes/api.js](backend/routes/api.js)
- Admin API (key): [backend/routes/apiV2.js](backend/routes/apiV2.js)
- DB layer: [backend/services/database.js](backend/services/database.js)
- Schema: [backend/scheme.sql](backend/scheme.sql)
+On this page you will learn how my API works.
+
+## General information
+
+When you look at my backend folder and file structure, you can see that I have two files called `API`. The first file called `api.js` is for my web frontend, because this file works together with my JWT token service.
+
+**\*But I have built a second API. You can see the second API file in the same directory, the file is called `apiV2.js`.**
+
+This is the file that you can use to build an API.
+
+But first you have to get the Admin API key, stored in an `.env` file on my server.
+
+---

 ## Authentication

-Most endpoints under `/api` require a Bearer JWT.
+All endpoints require the Admin API key (`ADMIN_ID`) as a URL parameter.

-1. Login to get a token
-
- POST /api/login
- Body: `{ "username": string, "password": string }`
- Response 200: `{ "message": "Login successful", "token": string }`
- Response 401: `{ "message": "Invalid credentials" }`
-
-Example:
-
-```sh
-curl -s -X POST http://localhost:8002/api/login \
-  -H "Content-Type: application/json" \
-  -d '{"username":"alice","password":"password1"}'
-```
-
-2. Use the token for all protected endpoints
-
- Header: `Authorization: Bearer <token>`
-
-The middleware [`authenticate`](backend/services/tokenService.js) verifies tokens and attaches `req.user = { username, role }`.
-
-Environment:
-
- SECRET_KEY: HMAC secret for JWT
- DB_HOST, DB_USER, DB_PASSWORD, DB_NAME: MySQL connection
- ADMIN_ID: Admin API key for /apiV2
-
-## Data model (items)
-
-Items (as returned by endpoints) have:
-
- `id`: number
- `item_name`: string
- `can_borrow_role`: number (minimum role required)
- `inSafe`: 0/1 (not in locker / in locker)
-
-See the full schema in [backend/scheme.sql](backend/scheme.sql).
+Example: `/apiV2/items/{ADMIN_ID}`

 ---

-## App API (JWT) — /api
+## URL

-All routes below require `Authorization: Bearer <token>` unless noted.
+- The frontend is currently running on `https://insta.the1s.de`.

-### GET /api/items
+- The backend is currently running on `https://backend.insta.the1s.de`.

-Returns items filtered by the user role:
+You can see the status of this and all my other services at `https://status.the1s.de`.

- role == 0: all items
- role > 0: items with `can_borrow_role >= role`
+---

-Implements: [`getItemsFromDatabase`](backend/services/database.js)
+## Current endpoints

-Response 200:
+### 1. Get All Items

-```json
-[
-  { "id": 1, "item_name": "Laptop", "can_borrow_role": 1, "inSafe": 1 },
-  ...
-]
+**GET** `/apiV2/items/:key`
+
+Returns a list of all items and their details.
+
+#### Example Request
+
+```
+GET https://backend.insta.the1s.de/apiV2/items/your_admin_key
 ```

-Example:
+#### Example Response

-```sh
-curl -s http://localhost:8002/api/items \
-  -H "Authorization: Bearer $TOKEN"
 ```
-
-### GET /api/loans
-
-Returns all loans.
-
-Implements: [`getLoansFromDatabase`](backend/services/database.js)
-
-Response 200:
-
-```json
-[
+{
+  "data": [
    {
      "id": 1,
-    "username": "alice",
-    "loan_code": 1001,
-    "start_date": "2025-08-01T09:00:00.000Z",
-    "end_date": "2025-08-10T09:00:00.000Z",
-    "returned_date": null,
-    "created_at": "2025-08-01T09:00:00.000Z",
-    "loaned_items_id": [1, 2],
-    "loaned_items_name": ["Laptop", "Projector"]
+      "item_name": "DJI 1er Mikro",
+      "can_borrow_role": 4,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 2,
+      "item_name": "DJI 2er Mikro 1",
+      "can_borrow_role": 4,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 3,
+      "item_name": "DJI 2er Mikro 2",
+      "can_borrow_role": 4,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 4,
+      "item_name": "Rode Richt Mikrofon",
+      "can_borrow_role": 2,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 5,
+      "item_name": "Kamera Stativ",
+      "can_borrow_role": 1,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 6,
+      "item_name": "SONY Kamera - inkl. Akkus und Objektiv",
+      "can_borrow_role": 1,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 7,
+      "item_name": "MacBook inkl. Adapter",
+      "can_borrow_role": 2,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 8,
+      "item_name": "SD Karten",
+      "can_borrow_role": 3,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 9,
+      "item_name": "Kameragimbal",
+      "can_borrow_role": 1,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 10,
+      "item_name": "ATEM MINI PRO",
+      "can_borrow_role": 1,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 11,
+      "item_name": "Handygimbal",
+      "can_borrow_role": 4,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 12,
+      "item_name": "Kameralfter",
+      "can_borrow_role": 1,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 13,
+      "item_name": "Kleine Kamera 1 - inkl. Objektiv",
+      "can_borrow_role": 2,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
+    },
+    {
+      "id": 14,
+      "item_name": "Kleine Kamera 2 - inkl. Objektiv",
+      "can_borrow_role": 2,
+      "inSafe": 1,
+      "entry_created_at": "2025-08-19T22:02:16.000Z"
    }
-]
-```
-
-### GET /api/userLoans
-
-Returns loans for the authenticated user.
-
-Implements: [`getUserLoansFromDatabase`](backend/services/database.js)
-
-Response 200:
-
- On success: `Loan[]`
- If none found: `"No loans found for this user"` (string)
-
-Tip: Treat a non-array response as “no loans”.
-
-### DELETE /api/deleteLoan/:id
-
-Deletes a loan by numeric ID.
-
-Implements: [`deleteLoanFromDatabase`](backend/services/database.js)
-
- 200: `{ "message": "Loan deleted successfully" }`
- 500: `{ "message": "Failed to delete loan" }`
-
-Example:
-
-```sh
-curl -s -X DELETE http://localhost:8002/api/deleteLoan/42 \
-  -H "Authorization: Bearer $TOKEN"
-```
-
-### POST /api/borrowableItems
-
-Returns items available in the given time range (excludes items with overlapping loans). Also enforces role filtering.
-
-Implements: [`getBorrowableItemsFromDatabase`](backend/services/database.js)
-
-Request body:
-
-```json
-{ "startDate": "2025-08-01T09:00:00Z", "endDate": "2025-08-02T09:00:00Z" }
-```
-
- 200: `Item[]`
- 400: `{ "message": "startDate and endDate are required" }`
- 500: `{ "message": "Failed to fetch borrowable items" }`
-
-Example:
-
-```sh
-curl -s -X POST http://localhost:8002/api/borrowableItems \
-  -H "Authorization: Bearer $TOKEN" \
-  -H "Content-Type: application/json" \
-  -d '{"startDate":"2025-08-01T09:00:00Z","endDate":"2025-08-02T09:00:00Z"}'
-```
-
-### POST /api/createLoan
-
-Creates a loan for the authenticated user.
-
-Implements: [`createLoanInDatabase`](backend/services/database.js)
-
-Request body:
-
-```json
-{
-  "items": [1, 2, 3], // array of item IDs (required)
-  "startDate": "2025-08-01T09:00:00Z", // required
-  "endDate": "2025-08-02T09:00:00Z" // required
+  ]
 }
 ```

-Notes:
+Each item has the following properties:

- IDs are coerced to numbers; invalid entries are dropped.
- Date range must be valid and `startDate < endDate`.
- Overlaps with existing loans cause 409 Conflict.
- On success, returns the generated `loanCode`.
+- `id`: The unique identifier for the item.
+- `item_name`: The name of the item.
+- `can_borrow_role`: The role ID that is allowed to borrow the item.
+- `inSafe`: Indicates whether the item is currently in the locker (1) or not (0). This variable/state can change over time.

-Responses:
+_You also get an http 200 status code._

- 201:
+---

-```json
+### 2. Change Item Safe State
+
+**POST** `/apiV2/controlInSafe/:key/:itemId/:state`
+
+Updates the `inSafe` state of an item (whether it is in the locker).
+
+- `state` must be `"1"` (in safe) or `"0"` (not in safe).
+
+#### Example Request
+
+```
+POST https://backend.insta.the1s.de/apiV2/controlInSafe/your_admin_key/item_id/new_item_state
+```
+
+#### Example Response
+
+```
+{}
+```
+
+_An empty object means, that the operation was successful and no further information is returned._
+
+_You also get an http 200 status code._
+
+---
+
+### 3. Set Return Date
+
+**POST** `/apiV2/setReturnDate/:key/:loan_code`
+
+Sets the `returned_date` of a loan to the current server time.
+
+- `loan_code`: The unique code of the loan.
+
+#### Example Request
+
+```
+POST https://backend.insta.the1s.de/apiV2/setReturnDate/your_admin_key/your_loan_code
+```
+
+#### Example Response
+
+```
+{}
+```
+
+_An empty object means, that the operation was successful and no further information is returned._
+
+_You also get an http 200 status code._
+
+---
+
+### 4. Set Take Date
+
+**POST** `/apiV2/setTakeDate/:key/:loan_code`
+
+Sets the `take_date` of a loan to the current server time.
+
+- `loan_code`: The unique code of the loan.
+
+#### Example Request
+
+```
+POST https://backend.insta.the1s.de/apiV2/setTakeDate/your_admin_key/your_loan_code
+```
+
+#### Example Response
+
+```
+{}
+```
+
+_An empty object means, that the operation was successful and no further information is returned._
+
+_You also get an http 2xx status code._
+
+---
+
+### 5. Get whole loan by loan code
+
+**POST** `/getLoanByCode/:key/:loan_code`
+
+Retrieves the details of a specific loan by its unique code.
+
+- `loan_code`: The unique code of the loan.
+
+#### Example Request
+
+```
+GET https://backend.insta.the1s.de/getLoanByCode/your_admin_key/your_loan_code
+```
+
+#### Example Response
+
+```
 {
-  "message": "Loan created successfully",
-  "loanId": 123,
-  "loanCode": 1007
+  "data": {
+    "id": 6,
+    "username": "theis",
+    "loan_code": 646473,
+    "start_date": "2025-08-25T13:23:00.000Z",
+    "end_date": "2025-08-26T13:23:00.000Z",
+    "take_date": null,
+    "returned_date": null,
+    "created_at": "2025-08-20T11:23:40.000Z",
+    "loaned_items_id": [
+      8,
+      9
+    ],
+    "loaned_items_name": [
+      "SD Karten",
+      "Kameragimbal"
+    ]
+  }
 }
 ```

- 400: `{ "message": "Items array is required" | "No valid item IDs provided" | "Invalid date range" | ... }`
- 409: `{ "message": "Items not available in the selected period" }`
- 500: `{ "message": "Failed to create loan" }`
+_You also get an http 200 status code._

-Example:
+If the loan id does not exist, you will receive a 404 status code and an error message.

-```sh
-curl -s -X POST http://localhost:8002/api/createLoan \
-  -H "Authorization: Bearer $TOKEN" \
-  -H "Content-Type: application/json" \
-  -d '{"items":[1,2],"startDate":"2025-08-01T09:00:00Z","endDate":"2025-08-02T09:00:00Z"}'
+```
+{
+  "message": "Loan not found"
+}
 ```

 ---

-## Admin API — /apiV2
+## Error Handling

-These endpoints are protected by a static admin key in the path. Set `ADMIN_ID` in environment. No JWT required.
-
-### GET /apiV2/items/:key
-
-Returns all items (no role filtering).
-
-Implements: [`getItemsFromDatabaseV2`](backend/services/database.js)
-
- 200: `Item[]`
- 403: `{ "message": "Access denied" }`
-
-Example:
-
-```sh
-curl -s http://localhost:8002/apiV2/items/$ADMIN_ID
-```
-
-### POST /apiV2/controlInSafe/:key/:itemId/:state
-
-Updates `inSafe` state (0 or 1) for an item by ID.
-
-Implements: [`changeInSafeStateV2`](backend/services/database.js)
-
- `state`: `"0"` or `"1"`
- 200: `{ "message": "Item state updated successfully" }`
- 400: `{ "message": "Invalid state value" }`
- 403: `{ "message": "Access denied" }`
- 500: `{ "message": "Failed to update item state" }`
-
-Example:
-
-```sh
-curl -s -X POST http://localhost:8002/apiV2/controlInSafe/$ADMIN_ID/5/0
-```
+- `403 Forbidden`: Invalid or missing API key.
+- `400 Bad Request`: Invalid parameters (e.g., wrong state value).
+- `500 Internal Server Error`: Database or server error.

 ---

-## Error handling summary
-
- 400 Bad Request: invalid payloads or missing fields
- 401 Unauthorized: missing/invalid JWT (for `/api` routes)
- 403 Forbidden: wrong admin key (for `/apiV2` routes)
- 409 Conflict: loan overlaps with selected period
- 500 Internal Server Error: unexpected server/database errors
-
---
-
-## Running locally
-
-With Docker Compose: [docker-compose.yml](docker-compose.yml)
-
- Backend: http://localhost:8002 (mounted from [backend](backend))
- MySQL: root password from `.env` as `DB_PASSWORD`, port 3309 on host
- Seed schema/data: import [backend/scheme.sql](backend/scheme.sql) into the DB
-
-Environment required by backend:
-
- `DB_HOST`, `DB_USER`, `DB_PASSWORD`, `DB_NAME`
- `SECRET_KEY`
- `ADMIN_ID`
-
---
-
-References:
-
- App routes: [backend/routes/api.js](backend/routes/api.js)
-  - [`loginFunc`](backend/services/database.js), [`getItemsFromDatabase`](backend/services/database.js), [`getLoansFromDatabase`](backend/services/database.js), [`getUserLoansFromDatabase`](backend/services/database.js), [`deleteLoanFromDatabase`](backend/services/database.js), [`getBorrowableItemsFromDatabase`](backend/services/database.js), [`createLoanInDatabase`](backend/services/database.js)
- Admin routes: [backend/routes/apiV2.js](backend/routes/apiV2.js)
- Auth: [`authenticate`](backend/services/tokenService.js),
+If you have questions or want to collaborate, please reach out to me!
--- a/Mock/Frames.pdf
+++ b/Mock/Frames.pdf
--- a/README.md
+++ b/README.md
@@ -0,0 +1,73 @@
+# Borrow System
+
+![React](https://img.shields.io/badge/React-20232A?logo=react&logoColor=61DAFB)
+![TypeScript](https://img.shields.io/badge/TypeScript-3178C6?logo=typescript&logoColor=white)
+![Vite](https://img.shields.io/badge/Vite-646CFF?logo=vite&logoColor=white)
+![TailwindCSS](https://img.shields.io/badge/Tailwind_CSS-38B2AC?logo=tailwind-css&logoColor=white)
+![Node.js](https://img.shields.io/badge/Node.js-339933?logo=node.js&logoColor=white)
+![Express](https://img.shields.io/badge/Express-000000?logo=express&logoColor=white)
+![MySQL](https://img.shields.io/badge/MySQL-4479A1?logo=mysql&logoColor=white)
+![Docker](https://img.shields.io/badge/Docker-2496ED?logo=docker&logoColor=white)
+![JWT](https://img.shields.io/badge/JWT-000000?logo=jsonwebtokens&logoColor=white)
+
+A small full‑stack system to log in, view available items, reserve them for a time window, and manage personal loans.
+
+- Frontend: React + TypeScript + Vite + Tailwind CSS
+- Backend: Node.js + Express + MySQL + JWT (jose)
+- Orchestration: Docker Compose (backend + MySQL)
+
+## 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)
+- 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)
+- Docs: [docs/](docs)
+  - API docs (see below): [docs/backend_API_docs/README.md](docs/backend_API_docs/README.md)
+
+## Features (high‑level)
+
+- Auth via JWT (login -> token cookie) using the backend route in [backend/routes/api.js](backend/routes/api.js).
+- After login, the app loads items, loans, and user loans and keeps them in localStorage.
+- Choose a date range to fetch borrowable items, select items, and create a loan.
+- Manage personal loans list (and delete a loan).
+
+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.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.
+
+UI flow (main screens):
+
+- Period selection: [frontend/src/components/Form1.tsx](frontend/src/components/Form1.tsx)
+- Borrowable items + selection: [frontend/src/components/Form2.tsx](frontend/src/components/Form2.tsx)
+- User loans table: [frontend/src/components/Form4.tsx](frontend/src/components/Form4.tsx)
+
+## 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)
+
+## 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).
+- 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).
+
+## API documentation
+
+Refer to the dedicated API docs:
+
+`docs/backend_API_docs/README.md`
--- a/backend/routes/api.js
+++ b/backend/routes/api.js
@@ -11,7 +11,6 @@ import {
 import { authenticate, generateToken } from "../services/tokenService.js";
 const router = express.Router();

-// Example endpoint
 router.post("/login", async (req, res) => {
  const result = await loginFunc(req.body.username, req.body.password);
  if (result.success) {
--- a/backend/routes/apiV2.js
+++ b/backend/routes/apiV2.js
@@ -3,16 +3,20 @@ import dotenv from "dotenv";
 import {
  getItemsFromDatabaseV2,
  changeInSafeStateV2,
+  setReturnDateV2,
+  setTakeDateV2,
+  getLoanByCodeV2,
 } from "../services/database.js";

 dotenv.config();
 const router = express.Router();

+// Route for API to get ALL items from the database
 router.get("/items/:key", async (req, res) => {
  if (req.params.key === process.env.ADMIN_ID) {
    const result = await getItemsFromDatabaseV2();
    if (result.success) {
-      res.status(200).json(result.data);
+      res.status(200).json({ data: result.data });
    } else {
      res.status(500).json({ message: "Failed to fetch items" });
    }
@@ -21,6 +25,7 @@ router.get("/items/:key", async (req, res) => {
  }
 });

+// Route for API to control the position of an item
 router.post("/controlInSafe/:key/:itemId/:state", async (req, res) => {
  if (req.params.key === process.env.ADMIN_ID) {
    const itemId = req.params.itemId;
@@ -28,7 +33,7 @@ router.post("/controlInSafe/:key/:itemId/:state", async (req, res) => {
    if (state === "1" || state === "0") {
      const result = await changeInSafeStateV2(itemId, state);
      if (result.success) {
-        res.status(200).json({ message: "Item state updated successfully" });
+        res.status(200).json({ data: result.data });
      } else {
        res.status(500).json({ message: "Failed to update item state" });
      }
@@ -40,4 +45,49 @@ router.post("/controlInSafe/:key/:itemId/:state", async (req, res) => {
  }
 });

+router.get("/getLoanByCode/:key/:loan_code", async (req, res) => {
+  if (req.params.key === process.env.ADMIN_ID) {
+    const loan_code = req.params.loan_code;
+
+    const result = await getLoanByCodeV2(loan_code);
+    if (result.success) {
+      res.status(200).json({ data: result.data });
+    } else {
+      res.status(404).json({ message: "Loan not found" });
+    }
+  }
+});
+
+// Route for API to set the return date
+router.post("/setReturnDate/:key/:loan_code", async (req, res) => {
+  if (req.params.key === process.env.ADMIN_ID) {
+    const loanCode = req.params.loan_code;
+
+    const result = await setReturnDateV2(loanCode);
+    if (result.success) {
+      res.status(200).json({ data: result.data });
+    } else {
+      res.status(500).json({ message: "Failed to set return date" });
+    }
+  } else {
+    res.status(403).json({ message: "Access denied" });
+  }
+});
+
+// Route for API to set the take away date
+router.post("/setTakeDate/:key/:loan_code", async (req, res) => {
+  if (req.params.key === process.env.ADMIN_ID) {
+    const loanCode = req.params.loan_code;
+
+    const result = await setTakeDateV2(loanCode);
+    if (result.success) {
+      res.status(200).json({ data: result.data });
+    } else {
+      res.status(500).json({ message: "Failed to set take date" });
+    }
+  } else {
+    res.status(403).json({ message: "Access denied" });
+  }
+});
+
 export default router;
--- a/backend/scheme.sql
+++ b/backend/scheme.sql
@@ -7,6 +7,7 @@ CREATE TABLE `users` (
  `username` varchar(100) NOT NULL,
  `password` varchar(255) NOT NULL,
  `role` int DEFAULT NULL,
+  `entry_created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `username` (`username`)
 );
@@ -17,6 +18,7 @@ CREATE TABLE `loans` (
  `loan_code` int NOT NULL,
  `start_date` timestamp NOT NULL,
  `end_date` timestamp NOT NULL,
+  `take_date` timestamp NULL DEFAULT NULL,
  `returned_date` timestamp NULL DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
  `loaned_items_id` json NOT NULL DEFAULT ('[]'),
@@ -30,6 +32,7 @@ CREATE TABLE `items` (
  `item_name` varchar(255) NOT NULL,
  `can_borrow_role` INT NOT NULL,
  `inSafe` tinyint(1) NOT NULL DEFAULT '1',
+  `entry_created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `item_name` (`item_name`)
 );
@@ -38,100 +41,40 @@ CREATE TABLE `lockers` (
  `id` int NOT NULL AUTO_INCREMENT,
  `item` varchar(255) NOT NULL,
  `locker_number` int NOT NULL,
+  `entry_created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `item` (`item`),
  UNIQUE KEY `locker_number` (`locker_number`)
 );

-- Mock data for users
-INSERT INTO `users` (`username`, `password`, `role`) VALUES
-('alice', 'password1', 1),
-('bob', 'password2', 2),
-('carol', 'password3', 1),
-('dave', 'password4', 3),
-('eve', 'password5', 2),
-('frank', 'password6', 1),
-('grace', 'password7', 2),
-('heidi', 'password8', 3),
-('ivan', 'password9', 1),
-('judy', 'password10', 2),
-('mallory', 'password11', 1),
-('oscar', 'password12', 3),
-('peggy', 'password13', 2),
-('trent', 'password14', 1),
-('victor', 'password15', 2),
-('wendy', 'password16', 3),
-('zoe', 'password17', 1),
-('quinn', 'password18', 2),
-('ruth', 'password19', 1),
-('sam', 'password20', 3);
-
-- Mock data for loans
-INSERT INTO `loans` (`username`, `loan_code`, `start_date`, `end_date`, `returned_date`, `loaned_items_id`, `loaned_items_name`)
-VALUES
-('alice', 1001, '2025-08-01 09:00:00', '2025-08-10 09:00:00', NULL, '[1,2]', '["Laptop","Projector"]'),
-('bob', 1002, '2025-08-02 10:00:00', '2025-08-12 10:00:00', NULL, '[3]', '["Tablet"]'),
-('carol', 1003, '2025-08-03 11:00:00', '2025-08-13 11:00:00', NULL, '[4,5]', '["Camera","Tripod"]'),
-('dave', 1004, '2025-08-04 12:00:00', '2025-08-14 12:00:00', NULL, '[6]', '["Microphone"]'),
-('eve', 1005, '2025-08-05 13:00:00', '2025-08-15 13:00:00', NULL, '[7,8]', '["Speaker","Monitor"]'),
-('frank', 1006, '2025-08-06 14:00:00', '2025-08-16 14:00:00', NULL, '[9]', '["Keyboard"]'),
-('grace', 1007, '2025-08-07 15:00:00', '2025-08-17 15:00:00', NULL, '[10,11]', '["Mouse","Printer"]'),
-('heidi', 1008, '2025-08-08 16:00:00', '2025-08-18 16:00:00', NULL, '[12]', '["Scanner"]'),
-('ivan', 1009, '2025-08-09 17:00:00', '2025-08-19 17:00:00', NULL, '[13,14]', '["Router","Switch"]'),
-('judy', 1010, '2025-08-10 18:00:00', '2025-08-20 18:00:00', NULL, '[15]', '["Projector"]'),
-('mallory', 1011, '2025-08-11 09:00:00', '2025-08-21 09:00:00', NULL, '[16,17]', '["Laptop","Tablet"]'),
-('oscar', 1012, '2025-08-12 10:00:00', '2025-08-22 10:00:00', NULL, '[18]', '["Camera"]'),
-('peggy', 1013, '2025-08-13 11:00:00', '2025-08-23 11:00:00', NULL, '[19,20]', '["Tripod","Microphone"]'),
-('trent', 1014, '2025-08-14 12:00:00', '2025-08-24 12:00:00', NULL, '[1]', '["Laptop"]'),
-('victor', 1015, '2025-08-15 13:00:00', '2025-08-25 13:00:00', NULL, '[2,3]', '["Projector","Tablet"]'),
-('wendy', 1016, '2025-08-16 14:00:00', '2025-08-26 14:00:00', NULL, '[4]', '["Camera"]'),
-('zoe', 1017, '2025-08-17 15:00:00', '2025-08-27 15:00:00', NULL, '[5,6]', '["Tripod","Microphone"]'),
-('quinn', 1018, '2025-08-18 16:00:00', '2025-08-28 16:00:00', NULL, '[7]', '["Speaker"]'),
-('ruth', 1019, '2025-08-19 17:00:00', '2025-08-29 17:00:00', NULL, '[8,9]', '["Monitor","Keyboard"]'),
-('sam', 1020, '2025-08-20 18:00:00', '2025-08-30 18:00:00', NULL, '[10]', '["Mouse"]');
-
-- Mock data for items
 INSERT INTO `items` (`item_name`, `can_borrow_role`, `inSafe`) VALUES
-('Laptop', 1, 1),
-('Projector', 2, 1),
-('Tablet', 1, 1),
-('Camera', 2, 1),
-('Tripod', 1, 1),
-('Microphone', 3, 1),
-('Speaker', 2, 1),
-('Monitor', 1, 1),
-('Keyboard', 2, 1),
-('Mouse', 1, 1),
-('Printer', 3, 1),
-('Scanner', 2, 1),
-('Router', 1, 1),
-('Switch', 2, 1),
-('Charger', 1, 1),
-('USB Cable', 2, 1),
-('HDMI Cable', 1, 1),
-('Webcam', 3, 1),
-('Headphones', 2, 1),
-('Smartphone', 1, 1);
+('DJI 1er Mikro', 4, 1),
+('DJI 2er Mikro 1', 4, 1),
+('DJI 2er Mikro 2', 4, 1),
+('Rode Richt Mikrofon', 2, 1),
+('Kamera Stativ', 1, 0),
+('SONY Kamera - inkl. Akkus und Objektiv', 1, 1),
+('MacBook inkl. Adapter', 2, 0),
+('SD Karten', 3, 0),
+('Kameragimbal', 1, 0),
+('ATEM MINI PRO', 1, 1),
+('Handygimbal', 4, 0),
+('Kameralüfter', 1, 1),
+('Kleine Kamera 1 - inkl. Objektiv', 2, 1),
+('Kleine Kamera 2 - inkl. Objektiv', 2, 1);

-- Mock data for lockers
 INSERT INTO `lockers` (`item`, `locker_number`) VALUES
-('Laptop', 101),
-('Projector', 102),
-('Tablet', 103),
-('Camera', 104),
-('Tripod', 105),
-('Microphone', 106),
-('Speaker', 107),
-('Monitor', 108),
-('Keyboard', 109),
-('Mouse', 110),
-('Printer', 111),
-('Scanner', 112),
-('Router', 113),
-('Switch', 114),
-('Charger', 115),
-('USB Cable', 116),
-('HDMI Cable', 117),
-('Webcam', 118),
-('Headphones', 119),
-('Smartphone', 120);
+('DJI 1er Mikro', 1),
+('DJI 2er Mikro 1', 2),
+('DJI 2er Mikro 2', 3),
+('Rode Richt Mikrofon', 4),
+('Kamera Stativ', 5),
+('SONY Kamera - inkl. Akkus und Objektiv', 6),
+('MacBook inkl. Adapter', 7),
+('SD Karten', 8),
+('Kameragimbal', 9),
+('ATEM MINI PRO', 10),
+('Handygimbal', 11),
+('Kameralüfter', 12),
+('Kleine Kamera 1 - inkl. Objektiv', 13),
+('Kleine Kamera 2 - inkl. Objektiv', 14);
--- a/backend/services/database.js
+++ b/backend/services/database.js
@@ -28,6 +28,17 @@ export const getItemsFromDatabaseV2 = async () => {
  return { success: false };
 };

+export const getLoanByCodeV2 = async (loan_code) => {
+  const [result] = await pool.query(
+    "SELECT * FROM loans WHERE loan_code = ?;",
+    [loan_code]
+  );
+  if (result.length > 0) {
+    return { success: true, data: result[0] };
+  }
+  return { success: false };
+};
+
 export const changeInSafeStateV2 = async (itemId, state) => {
  const [result] = await pool.query(
    "UPDATE items SET inSafe = ? WHERE id = ?",
@@ -39,6 +50,28 @@ export const changeInSafeStateV2 = async (itemId, state) => {
  return { success: false };
 };

+export const setReturnDateV2 = async (loanCode) => {
+  const [result] = await pool.query(
+    "UPDATE loans SET returned_date = NOW() WHERE loan_code = ?",
+    [loanCode]
+  );
+  if (result.affectedRows > 0) {
+    return { success: true };
+  }
+  return { success: false };
+};
+
+export const setTakeDateV2 = async (loanCode) => {
+  const [result] = await pool.query(
+    "UPDATE loans SET take_date = NOW() WHERE loan_code = ?",
+    [loanCode]
+  );
+  if (result.affectedRows > 0) {
+    return { success: true };
+  }
+  return { success: false };
+};
+
 export const getItemsFromDatabase = async (role) => {
  const sql =
    role == 0
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -1,10 +1,10 @@
-<!doctype html>
+<!DOCTYPE html>
 <html lang="en">
  <head>
    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <link rel="icon" type="image/svg+xml" href="/shapes.svg" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>Vite + React + TS</title>
+    <title>Ausleihsystem</title>
  </head>
  <body>
    <div id="root"></div>
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -9,7 +9,7 @@
      "version": "0.0.0",
      "dependencies": {
        "@tailwindcss/vite": "^4.1.11",
-        "@tanstack/react-query": "^5.85.0",
+        "@tanstack/react-query": "^5.85.5",
        "js-cookie": "^3.0.5",
        "lucide-react": "^0.539.0",
        "primeicons": "^7.0.0",
@@ -1836,9 +1836,9 @@
      }
    },
    "node_modules/@tanstack/query-core": {
-      "version": "5.85.3",
-      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.85.3.tgz",
-      "integrity": "sha512-9Ne4USX83nHmRuEYs78LW+3lFEEO2hBDHu7mrdIgAFx5Zcrs7ker3n/i8p4kf6OgKExmaDN5oR0efRD7i2J0DQ==",
+      "version": "5.85.5",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.85.5.tgz",
+      "integrity": "sha512-KO0WTob4JEApv69iYp1eGvfMSUkgw//IpMnq+//cORBzXf0smyRwPLrUvEe5qtAEGjwZTXrjxg+oJNP/C00t6w==",
      "license": "MIT",
      "funding": {
        "type": "github",
@@ -1846,12 +1846,12 @@
      }
    },
    "node_modules/@tanstack/react-query": {
-      "version": "5.85.3",
-      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.85.3.tgz",
-      "integrity": "sha512-AqU8TvNh5GVIE8I+TUU0noryBRy7gOY0XhSayVXmOPll4UkZeLWKDwi0rtWOZbwLRCbyxorfJ5DIjDqE7GXpcQ==",
+      "version": "5.85.5",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.85.5.tgz",
+      "integrity": "sha512-/X4EFNcnPiSs8wM2v+b6DqS5mmGeuJQvxBglmDxl6ZQb5V26ouD2SJYAcC3VjbNwqhY2zjxVD15rDA5nGbMn3A==",
      "license": "MIT",
      "dependencies": {
-        "@tanstack/query-core": "5.85.3"
+        "@tanstack/query-core": "5.85.5"
      },
      "funding": {
        "type": "github",
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -11,7 +11,7 @@
  },
  "dependencies": {
    "@tailwindcss/vite": "^4.1.11",
-    "@tanstack/react-query": "^5.85.0",
+    "@tanstack/react-query": "^5.85.5",
    "js-cookie": "^3.0.5",
    "lucide-react": "^0.539.0",
    "primeicons": "^7.0.0",
--- a/frontend/public/shapes.svg
+++ b/frontend/public/shapes.svg
@@ -0,0 +1 @@
+<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>
--- a/frontend/public/vite.svg
+++ b/frontend/public/vite.svg
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -6,7 +6,11 @@ import Form2 from "./components/Form2";
 import Form4 from "./components/Form4";
 import LoginForm from "./components/LoginForm";
 import Cookies from "js-cookie";
-import { fetchAllData, ALL_ITEMS_UPDATED_EVENT } from "./utils/fetchData";
+import {
+  fetchAllData,
+  ALL_ITEMS_UPDATED_EVENT,
+  AUTH_LOGOUT_EVENT,
+} from "./utils/fetchData";
 import { myToast } from "./utils/toastify";

 function App() {
@@ -18,18 +22,23 @@ function App() {
      setIsLoggedIn(true);
      fetchAllData(token);
    }
-
    localStorage.setItem("borrowableItems", JSON.stringify([]));
  }, []);

-  // Mock flow without real logic: show the three sections stacked for design preview
+  useEffect(() => {
+    const onAuthLogout = () => {
+      setIsLoggedIn(false);
+    };
+    window.addEventListener(AUTH_LOGOUT_EVENT, onAuthLogout);
+    return () => window.removeEventListener(AUTH_LOGOUT_EVENT, onAuthLogout);
+  }, []);
+
  const handleLogout = () => {
    Cookies.remove("token");
    localStorage.removeItem("allItems");
    localStorage.removeItem("allLoans");
    localStorage.removeItem("userLoans");
    localStorage.removeItem("borrowableItems");
-    // Let listeners refresh from empty state
    window.dispatchEvent(new Event(ALL_ITEMS_UPDATED_EVENT));
    myToast("Logged out successfully!", "success");
    setIsLoggedIn(false);
@@ -37,11 +46,11 @@ function App() {

  return isLoggedIn ? (
    <Layout onLogout={handleLogout}>
-      <div className="space-y-10">
+      <div className="space-y-6">
        <Form1 />
-        <div className="h-px bg-blue-100" />
+        <div className="h-px bg-slate-200" />
        <Form2 />
-        <div className="h-px bg-blue-100" />
+        <div className="h-px bg-slate-200" />
        <Form4 />
      </div>
    </Layout>
--- a/frontend/src/components/Footer.tsx
+++ b/frontend/src/components/Footer.tsx
@@ -0,0 +1,12 @@
+import React from "react";
+
+const Footer: React.FC = () => {
+  return (
+    <footer className="fixed bottom-0 left-0 text-sm w-full bg-slate-100 text-center py-2 border-t border-slate-200 z-50">
+      <p>Made with ❤️ by Theis Gaedigk - Jahrgang 2019</p>
+      <p>v1.1</p>
+    </footer>
+  );
+};
+
+export default Footer;
--- a/frontend/src/components/Form1.tsx
+++ b/frontend/src/components/Form1.tsx
@@ -4,10 +4,12 @@ import { getBorrowableItems } from "../utils/fetchData";

 const Form1: React.FC = () => {
  return (
-    <div className="space-y-6">
-      <h2 className="text-xl font-bold text-blue-700">1. Zeitraum wählen</h2>
+    <div className="space-y-4">
+      <h2 className="text-lg sm:text-xl font-bold text-slate-900">
+        1. Zeitraum wählen
+      </h2>
      <form
-        className="space-y-4"
+        className="space-y-3"
        onSubmit={(e) => {
          e.preventDefault();
          const form = e.currentTarget as HTMLFormElement;
@@ -17,13 +19,13 @@ const Form1: React.FC = () => {
          Cookies.set("startDate", start);
          Cookies.set("endDate", end);
          getBorrowableItems();
-          console.log("Zeitraum erfolgreich gesetzt!");
        }}
      >
+        <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
          <div>
            <label
              htmlFor="startDate"
-            className="block text-sm font-medium text-blue-800 mb-1"
+              className="block text-sm font-medium text-slate-700 mb-1"
            >
              Start
            </label>
@@ -31,13 +33,13 @@ const Form1: React.FC = () => {
              type="datetime-local"
              id="startDate"
              name="startDate"
-            className="w-full border border-blue-200 rounded-lg px-3 py-2 focus:ring-2 focus:ring-blue-400 focus:outline-none bg-white/70"
+              className="w-full border border-slate-300 rounded-lg px-3 py-2.5 focus:ring-2 focus:ring-indigo-500 focus:outline-none bg-white"
            />
          </div>
          <div>
            <label
              htmlFor="endDate"
-            className="block text-sm font-medium text-blue-800 mb-1"
+              className="block text-sm font-medium text-slate-700 mb-1"
            >
              Ende
            </label>
@@ -45,12 +47,13 @@ const Form1: React.FC = () => {
              type="datetime-local"
              id="endDate"
              name="endDate"
-            className="w-full border border-blue-200 rounded-lg px-3 py-2 focus:ring-2 focus:ring-blue-400 focus:outline-none bg-white/70"
+              className="w-full border border-slate-300 rounded-lg px-3 py-2.5 focus:ring-2 focus:ring-indigo-500 focus:outline-none bg-white"
            />
          </div>
+        </div>
        <button
          type="submit"
-          className="w-full bg-gradient-to-r from-blue-600 to-blue-400 hover:from-blue-700 hover:to-blue-500 text-white font-bold py-2 px-4 rounded-xl shadow transition"
+          className="w-full bg-indigo-600 text-white font-bold py-2.5 px-4 rounded-lg shadow hover:bg-indigo-700 transition"
        >
          Verfügbare Gegenstände anzeigen
        </button>
--- a/frontend/src/components/Form2.tsx
+++ b/frontend/src/components/Form2.tsx
@@ -1,7 +1,6 @@
 import React from "react";
 import Cookies from "js-cookie";
-import { createLoan } from "../utils/userHandler";
-import { addToRemove, rmFromRemove } from "../utils/userHandler";
+import { createLoan, addToRemove, rmFromRemove } from "../utils/userHandler";
 import { BORROWABLE_ITEMS_UPDATED_EVENT } from "../utils/fetchData";

 interface BorrowItem {
@@ -13,14 +12,6 @@ interface BorrowItem {

 const LOCAL_STORAGE_KEY = "borrowableItems";

-// Einfache Type-Guard/Validierung
-const isBorrowItem = (v: any): v is BorrowItem =>
-  v &&
-  typeof v.id === "number" &&
-  (typeof v.item_name === "string" || typeof v.name === "string") &&
-  (typeof v.can_borrow_role === "string" || typeof v.role === "string");
-
-// Helfer: unterschiedliche Server-Shapes normalisieren
 function normalizeBorrowable(data: any): BorrowItem[] {
  const rawArr = Array.isArray(data)
    ? data
@@ -52,7 +43,6 @@ function normalizeBorrowable(data: any): BorrowItem[] {
    .filter(Boolean) as BorrowItem[];
 }

-// Hook, der automatisch aus dem Local Storage liest und auf Änderungen hört
 function useBorrowableItems() {
  const [items, setItems] = React.useState<BorrowItem[]>([]);

@@ -68,16 +58,13 @@ function useBorrowableItems() {
  }, []);

  React.useEffect(() => {
-    // Initial read
    readFromStorage();

-    // Cross-tab updates
    const onStorage = (e: StorageEvent) => {
      if (e.key === LOCAL_STORAGE_KEY) readFromStorage();
    };
    window.addEventListener("storage", onStorage);

-    // Same-tab updates via Custom Event
    const onBorrowableUpdated = () => readFromStorage();
    window.addEventListener(
      BORROWABLE_ITEMS_UPDATED_EVENT,
@@ -100,48 +87,74 @@ const Form2: React.FC = () => {
  const items = useBorrowableItems();

  return (
-    <div className="space-y-6">
-      <h2 className="text-xl font-bold text-blue-700">
+    <div className="space-y-4">
+      <h2 className="text-lg sm:text-xl font-bold text-slate-900">
        2. Gegenstand auswählen
      </h2>

      {items.length === 0 ? (
-        <div className="text-red-600 font-medium text-center bg-red-50 border border-red-200 rounded-xl p-4">
+        <div className="text-slate-700 text-center bg-slate-100 border border-slate-200 rounded-xl p-4">
          Keine Gegenstände verfügbar für diesen Zeitraum.
        </div>
      ) : (
-        <div className="overflow-x-auto rounded-xl border border-blue-100 shadow-sm bg-white/80">
-          <table className="min-w-full divide-y divide-blue-100">
-            <thead className="bg-blue-50/60">
+        <>
+          {/* Mobile: card list */}
+          <div className="sm:hidden space-y-2">
+            {items.map((item) => (
+              <label
+                key={item.id}
+                htmlFor={`item-${item.id}`}
+                className="flex items-center justify-between gap-3 p-3 rounded-lg border border-slate-200 bg-white shadow-sm"
+              >
+                <div className="min-w-0">
+                  <div className="text-sm font-medium text-slate-900 truncate">
+                    {item.item_name}
+                  </div>
+                  <div className="text-xs text-slate-500">
+                    {item.inSafe ? "Verfügbar" : "Nicht im Schließfach"}
+                  </div>
+                </div>
+                <input
+                  type="checkbox"
+                  id={`item-${item.id}`}
+                  onChange={(e) => {
+                    if (e.target.checked) addToRemove(item.id);
+                    else rmFromRemove(item.id);
+                  }}
+                  className="h-5 w-5 accent-indigo-600"
+                />
+              </label>
+            ))}
+          </div>
+
+          {/* Desktop: table */}
+          <div className="hidden sm:block overflow-x-auto rounded-xl border border-slate-200 shadow-sm bg-white">
+            <table className="min-w-full divide-y divide-slate-200">
+              <thead className="bg-slate-50">
                <tr>
-                <th className="px-4 py-2 text-left text-xs font-semibold text-blue-700">
+                  <th className="px-4 py-2 text-left text-xs font-semibold text-slate-700">
                    Gegenstand
                  </th>
-                <th className="px-4 py-2 text-left text-xs font-semibold text-blue-700">
+                  <th className="px-4 py-2 text-left text-xs font-semibold text-slate-700">
                    <input type="checkbox" className="invisible" />
                  </th>
                </tr>
              </thead>
-            <tbody className="divide-y divide-blue-50">
+              <tbody className="divide-y divide-slate-100">
                {items.map((item) => (
-                <tr
-                  key={item.id}
-                  className="hover:bg-blue-50/40 transition-colors"
-                >
-                  <td className="px-4 py-2 text-sm font-medium text-blue-900">
+                  <tr key={item.id} className="hover:bg-slate-50">
+                    <td className="px-4 py-2 text-sm font-medium text-slate-900">
                      {item.item_name}
                    </td>
-                  <td className="px-4 py-2 text-sm text-blue-700">
+                    <td className="px-4 py-2 text-sm text-slate-700 text-right">
                      <input
                        type="checkbox"
                        onChange={(e) => {
-                        if (e.target.checked) {
-                          addToRemove(item.id);
-                        } else {
-                          rmFromRemove(item.id);
-                        }
+                          if (e.target.checked) addToRemove(item.id);
+                          else rmFromRemove(item.id);
                        }}
                        id={`item-${item.id}`}
+                        className="h-4 w-4 accent-indigo-600"
                      />
                    </td>
                  </tr>
@@ -149,9 +162,10 @@ const Form2: React.FC = () => {
              </tbody>
            </table>
          </div>
+        </>
      )}

-      <div className="flex flex-col sm:flex-row gap-3 pt-2">
+      <div className="flex flex-col sm:flex-row gap-3 pt-1">
        <button
          onClick={() => {
            createLoan(
@@ -160,7 +174,7 @@ const Form2: React.FC = () => {
            );
          }}
          type="button"
-          className="flex-1 sm:flex-none sm:w-40 bg-gradient-to-r from-blue-600 to-blue-400 hover:from-blue-700 hover:to-blue-500 text-white font-bold py-2 px-4 rounded-xl shadow transition"
+          className="w-full sm:w-44 bg-indigo-600 text-white font-bold py-2.5 px-4 rounded-lg shadow hover:bg-indigo-700 transition"
        >
          Ausleihen
        </button>
--- a/frontend/src/components/Form4.tsx
+++ b/frontend/src/components/Form4.tsx
@@ -1,6 +1,9 @@
-import React, { useEffect, useState } from "react";
+import React from "react";
 import { Trash, ArrowLeftRight } from "lucide-react";
 import { handleDeleteLoan } from "../utils/userHandler";
+import { useMutation, useQuery } from "@tanstack/react-query";
+import Cookies from "js-cookie";
+import { queryClient } from "../utils/queryClient";

 type Loan = {
  id: number;
@@ -8,6 +11,7 @@ type Loan = {
  loan_code: number;
  start_date: string;
  end_date: string;
+  take_date: string | null;
  returned_date: string | null;
  created_at: string;
  loaned_items_id: number[];
@@ -21,45 +25,43 @@ const formatDate = (iso: string | null) => {
  return d.toLocaleString("de-DE", { dateStyle: "short", timeStyle: "short" });
 };

-const readUserLoansFromStorage = (): Loan[] => {
-  const raw = localStorage.getItem("userLoans");
-  if (!raw || raw === '"No loans found for this user"') return [];
-  try {
-    const parsed = JSON.parse(raw);
-    return Array.isArray(parsed) ? (parsed as Loan[]) : [];
-  } catch {
-    return [];
-  }
-};
+async function fetchUserLoans(): Promise<Loan[]> {
+  const res = await fetch("http://localhost:8002/api/userLoans", {
+    method: "GET",
+    headers: { Authorization: `Bearer ${Cookies.get("token") || ""}` },
+  });
+  if (!res.ok) throw new Error("Failed to fetch user loans");
+  const data = await res.json();
+  if (data === "No loans found for this user") return [];
+  return Array.isArray(data) ? (data as Loan[]) : [];
+}

 const Form4: React.FC = () => {
-  const [userLoans, setUserLoans] = useState<Loan[]>(() =>
-    readUserLoansFromStorage()
-  );
+  const { data: userLoans = [], isFetching } = useQuery({
+    queryKey: ["userLoans"],
+    queryFn: fetchUserLoans,
+  });

-  // Keep in sync if localStorage changes (e.g., other tabs or parts of the app)
-  useEffect(() => {
-    const onStorage = (e: StorageEvent) => {
-      if (e.key === "userLoans") {
-        setUserLoans(readUserLoansFromStorage());
-      }
-    };
-    window.addEventListener("storage", onStorage);
-    return () => window.removeEventListener("storage", onStorage);
-  }, []);
+  const deleteMutation = useMutation({
+    mutationFn: (loanID: number) => handleDeleteLoan(loanID),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["userLoans"] });
+    },
+  });

-  const onDelete = async (loanID: number) => {
-    const ok = await handleDeleteLoan(loanID);
-    if (ok) {
-      setUserLoans((prev) =>
-        prev.filter((l) => Number(l.id) !== Number(loanID))
+  const onDelete = (loanID: number) => deleteMutation.mutate(loanID);
+
+  if (isFetching) {
+    return (
+      <div className="rounded-xl border border-slate-200 bg-white p-6 text-center text-slate-600 shadow-sm">
+        <p>Lade Ausleihen…</p>
+      </div>
    );
  }
-  };

  if (userLoans.length === 0) {
    return (
-      <div className="rounded-xl border border-gray-200 bg-white p-6 text-center text-gray-600 shadow-sm">
+      <div className="rounded-xl border border-slate-200 bg-white p-6 text-center text-slate-600 shadow-sm">
        <p>Keine Ausleihen gefunden.</p>
      </div>
    );
@@ -67,65 +69,117 @@ const Form4: React.FC = () => {

  return (
    <div className="space-y-3">
-      <p className="text-lg font-semibold tracking-tight text-gray-900">
+      <p className="text-lg font-semibold tracking-tight text-slate-900">
        Meine Ausleihen
      </p>
-      <p className="text-sm text-gray-600">
-        Wenn du eine Ausleihe ändern oder löschen möchtest, klicke auf das
-        Papierkorb-Symbol.
+      <p className="text-sm text-slate-600">
+        Tippe auf das Papierkorb-Symbol, um eine Ausleihe zu löschen.
      </p>

-      <div className="rounded-xl border border-gray-200 bg-white shadow-sm">
+      {/* Mobile: cards */}
+      <div className="space-y-2 sm:hidden">
+        {userLoans.map((loan) => (
+          <div
+            key={loan.id}
+            className="rounded-xl border border-slate-200 bg-white p-3 shadow-sm"
+          >
+            <div className="flex items-start justify-between gap-3">
+              <div className="min-w-0">
+                <div className="text-sm font-semibold text-slate-900">
+                  Leihcode: <span className="font-mono">{loan.loan_code}</span>
+                </div>
+                <div className="mt-1 grid grid-cols-2 gap-x-4 gap-y-1 text-xs text-slate-700">
+                  <div>
+                    <span className="text-slate-500">Start:</span>{" "}
+                    {formatDate(loan.start_date)}
+                  </div>
+                  <div>
+                    <span className="text-slate-500">Ende:</span>{" "}
+                    {formatDate(loan.end_date)}
+                  </div>
+                  <div>
+                    <span className="text-slate-500">Abgeholt:</span>{" "}
+                    {formatDate(loan.take_date)}
+                  </div>
+                  <div>
+                    <span className="text-slate-500">Zurück:</span>{" "}
+                    {formatDate(loan.returned_date)}
+                  </div>
+                </div>
+                <div className="mt-2 text-xs text-slate-700">
+                  <span className="text-slate-500">Gegenstände:</span>{" "}
+                  {Array.isArray(loan.loaned_items_name)
+                    ? loan.loaned_items_name.join(", ")
+                    : "-"}
+                </div>
+              </div>
+              <button
+                onClick={() => onDelete(loan.id)}
+                aria-label="Ausleihe löschen"
+                className="flex items-center justify-center rounded-md p-2 text-slate-600 hover:bg-red-50 hover:text-red-600 focus:outline-none focus:ring-2 focus:ring-red-500/30"
+              >
+                <Trash className="h-5 w-5" />
+              </button>
+            </div>
+          </div>
+        ))}
+      </div>
+
+      {/* Desktop: table */}
+      <div className="hidden sm:block rounded-xl border border-slate-200 bg-white shadow-sm">
        <div className="overflow-x-auto">
-          <table className="min-w-full text-sm text-gray-700">
-            <thead className="sticky top-0 z-10 bg-gray-50">
-              <tr className="border-b border-gray-200">
-                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-gray-600">
+          <table className="table-auto min-w-full text-sm text-slate-700">
+            <thead className="sticky top-0 z-10 bg-slate-50">
+              <tr className="border-b border-slate-200">
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Leihcode
                </th>
-                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-gray-600">
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Start
                </th>
-                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-gray-600">
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Ende
                </th>
-                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-gray-600">
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
+                  Abgeholt
+                </th>
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Zurückgegeben
                </th>
-                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-gray-600">
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Erstellt
                </th>
-                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-gray-600">
+                <th className="px-4 py-3 text-left text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Gegenstände
                </th>
-                <th className="px-4 py-3 text-right text-xs font-semibold uppercase tracking-wider text-gray-600">
+                <th className="px-4 py-3 text-right text-xs font-semibold uppercase tracking-wider text-slate-600">
                  Aktionen
                </th>
              </tr>
            </thead>
-            <tbody className="divide-y divide-gray-100">
+            <tbody className="divide-y divide-slate-100">
              {userLoans.map((loan) => (
-                <tr
-                  key={loan.id}
-                  className="odd:bg-white even:bg-gray-50 hover:bg-gray-100/60 transition-colors"
-                >
-                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-gray-900">
+                <tr key={loan.id} className="odd:bg-white even:bg-slate-50">
+                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-slate-900">
                    {loan.loan_code}
                  </td>
-                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-gray-900">
+                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-slate-900">
                    {formatDate(loan.start_date)}
                  </td>
-                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-gray-900">
+                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-slate-900">
                    {formatDate(loan.end_date)}
                  </td>
-                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-gray-900">
+                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-slate-900">
+                    {formatDate(loan.take_date)}
+                  </td>
+                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-slate-900">
                    {formatDate(loan.returned_date)}
                  </td>
-                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-gray-900">
+                  <td className="px-4 py-3 whitespace-nowrap font-mono tabular-nums text-slate-900">
                    {formatDate(loan.created_at)}
                  </td>
-                  <td className="px-4 py-3">
-                    <div className="max-w-[22rem] truncate text-gray-900">
+                  <td className="px-4 py-3 whitespace-nowrap">
+                    <div className="text-slate-900">
                      {Array.isArray(loan.loaned_items_name)
                        ? loan.loaned_items_name.join(", ")
                        : "-"}
@@ -135,7 +189,7 @@ const Form4: React.FC = () => {
                    <button
                      onClick={() => onDelete(loan.id)}
                      aria-label="Ausleihe löschen"
-                      className="inline-flex items-center rounded-md p-2 text-gray-500 hover:bg-red-50 hover:text-red-600 focus:outline-none focus:ring-2 focus:ring-red-500/30"
+                      className="inline-flex items-center rounded-md p-2 text-slate-600 hover:bg-red-50 hover:text-red-600 focus:outline-none focus:ring-2 focus:ring-red-500/30"
                    >
                      <Trash className="h-4 w-4" />
                    </button>
@@ -145,7 +199,6 @@ const Form4: React.FC = () => {
            </tbody>
          </table>
        </div>
-
        {/* Scroll hint */}
        <div className="border-t border-gray-100 px-4 py-2">
          <div className="flex items-center gap-2 text-xs text-gray-500">
--- a/frontend/src/components/Header.tsx
+++ b/frontend/src/components/Header.tsx
@@ -6,20 +6,34 @@ type HeaderProps = {

 const Header: React.FC<HeaderProps> = ({ onLogout }) => {
  return (
-    <header className="mb-6 md:mb-10">
-      <h1 className="text-3xl md:text-4xl font-extrabold text-blue-800 tracking-tight drop-shadow-sm">
+    <header className="mb-4 sm:mb-6">
+      <div className="flex items-start justify-between gap-3">
+        <div className="min-w-0">
+          <h1 className="text-2xl sm:text-3xl font-extrabold text-slate-900 tracking-tight">
            Gegenstand ausleihen
          </h1>
-      <p className="text-blue-500 mt-1 md:mt-2 text-base md:text-lg font-medium">
+          <p className="text-slate-600 mt-1 text-sm sm:text-base">
            Schnell und unkompliziert Equipment reservieren
          </p>
+        </div>
        <button
          type="button"
          onClick={onLogout}
-        className="text-blue-500 hover:underline"
+          className="h-9 px-3 rounded-md border border-slate-300 text-slate-700 hover:bg-slate-100 transition"
        >
          Logout
        </button>
+        <a href="https://git.the1s.de/Matthias-Claudius-Schule/borrow-system/src/branch/dev/Docs/HELP.md">
+          <button className="h-9 px-3 rounded-md border border-slate-300 text-slate-700 hover:bg-slate-100 transition">
+            Hilfe
+          </button>
+        </a>
+        <a href="https://git.the1s.de/Matthias-Claudius-Schule/borrow-system">
+          <button className="h-9 px-3 rounded-md border border-slate-300 text-slate-700 hover:bg-slate-100 transition">
+            Source Code
+          </button>
+        </a>
+      </div>
    </header>
  );
 };
--- a/frontend/src/components/LoginForm.tsx
+++ b/frontend/src/components/LoginForm.tsx
@@ -1,4 +1,5 @@
 import React from "react";
+import Footer from "./Footer";
 import { useState } from "react";
 import { loginUser } from "../utils/fetchData";
 import { myToast } from "../utils/toastify";
@@ -22,16 +23,16 @@ const LoginForm: React.FC<LoginFormProps> = ({ onLogin }) => {
  };

  return (
-    <div className="bg-blue-950 min-h-screen">
-      <div className="max-w-sm mx-auto mt-20 bg-white rounded-xl shadow-lg p-8 border border-blue-100">
-        <h2 className="text-2xl font-bold text-blue-700 mb-6 text-center">
+    <div className="min-h-screen flex items-center justify-center bg-slate-100 p-4">
+      <div className="w-full max-w-sm bg-white rounded-2xl shadow-md p-6 sm:p-8 border border-slate-200">
+        <h2 className="text-2xl font-bold text-slate-900 mb-6 text-center">
          Login
        </h2>
-        <form onSubmit={handleSubmit} className="space-y-5">
+        <form onSubmit={handleSubmit} className="space-y-4">
          <div>
            <label
              htmlFor="username"
-              className="block text-sm font-medium text-gray-700 mb-1"
+              className="block text-sm font-medium text-slate-700 mb-1"
            >
              Username
            </label>
@@ -39,14 +40,14 @@ const LoginForm: React.FC<LoginFormProps> = ({ onLogin }) => {
              type="text"
              onChange={(e) => setUsername(e.target.value)}
              id="username"
-              className="mt-1 block w-full border border-gray-300 rounded-md shadow-sm focus:ring-blue-500 focus:border-blue-500 px-3 py-2"
+              className="mt-1 block w-full border border-slate-300 rounded-md shadow-sm focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 px-3 py-2.5 bg-white"
              required
            />
          </div>
          <div>
            <label
              htmlFor="password"
-              className="block text-sm font-medium text-gray-700 mb-1"
+              className="block text-sm font-medium text-slate-700 mb-1"
            >
              Password
            </label>
@@ -54,18 +55,19 @@ const LoginForm: React.FC<LoginFormProps> = ({ onLogin }) => {
              onChange={(e) => setPassword(e.target.value)}
              type="password"
              id="password"
-              className="mt-1 block w-full border border-gray-300 rounded-md shadow-sm focus:ring-blue-500 focus:border-blue-500 px-3 py-2"
+              className="mt-1 block w-full border border-slate-300 rounded-md shadow-sm focus:ring-2 focus:ring-indigo-500 focus:border-indigo-500 px-3 py-2.5 bg-white"
              required
            />
          </div>
          <button
            type="submit"
-            className="w-full bg-blue-600 text-white font-bold py-2 px-4 rounded-md shadow hover:bg-blue-700 transition"
+            className="w-full bg-indigo-600 text-white font-bold py-2.5 px-4 rounded-md shadow hover:bg-indigo-700 transition"
          >
            Login
          </button>
        </form>
      </div>
+      <Footer />
    </div>
  );
 };
--- a/frontend/src/components/Object.tsx
+++ b/frontend/src/components/Object.tsx
@@ -7,9 +7,9 @@ type ObjectProps = {

 const Object: React.FC<ObjectProps> = ({ title, description }) => {
  return (
-    <div>
-      <h3 className="text-sm font-semibold text-blue-800">{title}</h3>
-      <p className="text-xs text-blue-500/80 line-clamp-2">{description}</p>
+    <div className="min-w-0">
+      <h3 className="text-sm font-semibold text-slate-900">{title}</h3>
+      <p className="text-xs text-slate-600 line-clamp-2">{description}</p>
    </div>
  );
 };
--- a/frontend/src/components/Sidebar.tsx
+++ b/frontend/src/components/Sidebar.tsx
@@ -1,5 +1,6 @@
 import React, { useEffect, useState } from "react";
 import Object from "./Object";
+import { MonitorSmartphone } from "lucide-react";
 import { ALL_ITEMS_UPDATED_EVENT } from "../utils/fetchData";

 const Sidebar: React.FC = () => {
@@ -12,57 +13,51 @@ const Sidebar: React.FC = () => {
      const next = JSON.parse(localStorage.getItem("allItems") || "[]");
      setItems(next);
    };
-    // Update immediately in case data changed before this mounted
    handler();
    window.addEventListener(ALL_ITEMS_UPDATED_EVENT, handler);
    return () => window.removeEventListener(ALL_ITEMS_UPDATED_EVENT, handler);
  }, []);

  const outCount = items.reduce((n, it) => n + (it.inSafe ? 0 : 1), 0);
-  const sorted = [...items].sort((a, b) => Number(a.inSafe) - Number(b.inSafe)); // außerhalb zuerst
+  const sorted = [...items].sort((a, b) => Number(a.inSafe) - Number(b.inSafe));

  return (
-    <aside className="w-full md:w-80 md:h-screen md:sticky md:top-0 overflow-y-auto bg-white/90 backdrop-blur md:border-r border-blue-100 shadow-xl flex flex-col p-6">
-      <h2 className="text-2xl font-extrabold mb-4 text-blue-700 tracking-tight flex items-center justify-between">
-        <span className="flex items-center gap-2">
-          <svg
-            className="w-6 h-6 text-blue-500"
-            fill="none"
-            stroke="currentColor"
-            strokeWidth={2}
-            viewBox="0 0 24 24"
-          >
-            <path
-              strokeLinecap="round"
-              strokeLinejoin="round"
-              d="M16.5 7.5V4.75A2.25 2.25 0 0 0 14.25 2.5h-4.5A2.25 2.25 0 0 0 7.5 4.75V7.5m9 0h-9m9 0v11.75A2.25 2.25 0 0 1 14.25 21.5h-4.5A2.25 2.25 0 0 1 7.5 19.25V7.5m9 0h-9"
-            />
-          </svg>
-          Geräte Übersicht
+    <aside className="w-full md:w-72 md:h-full flex flex-col rounded-2xl pt-0 px-3 pb-3 sm:pt-0 sm:px-4 sm:pb-4 bg-gradient-to-b from-white to-slate-50 ring-1 ring-slate-200/70 shadow-md overflow-hidden">
+      <div className="sticky top-0 z-10 -mx-3 sm:-mx-4 px-3 sm:px-4 py-2.5 bg-white/85 backdrop-blur supports-[backdrop-filter]:backdrop-blur border-b border-slate-200/70 text-lg sm:text-xl font-bold mb-3 text-slate-900 tracking-tight flex items-center justify-between gap-2 rounded-t-2xl">
+        <span className="flex items-center gap-2 min-w-0 flex-1 truncate">
+          <MonitorSmartphone className="w-5 h-5 text-slate-700 shrink-0" />
+          <span className="truncate">Geräte</span>
        </span>
        {outCount > 0 && (
-          <span className="text-xs px-2 py-0.5 rounded-full bg-red-100 text-red-700">
+          <span className="inline-flex items-center gap-1 whitespace-nowrap tabular-nums text-[10px] sm:text-xs px-2.5 py-1 rounded-full bg-amber-50 text-amber-700 ring-1 ring-amber-200/70 shadow-sm font-medium">
            {outCount} außerhalb
          </span>
        )}
-      </h2>
+      </div>

-      <div className="space-y-4 flex-1 pr-1">
+      {/* Scroll area */}
+      <div className="flex-1 min-h-0 overflow-y-auto overflow-x-hidden">
+        <div className="flex flex-col gap-3 md:space-y-3">
          {sorted.map((item: any) => (
            <div
              key={item.item_name}
-            className={`bg-white/80 rounded-xl p-4 shadow hover:shadow-md transition ${
-              item.inSafe ? "" : "ring-1 ring-red-200"
+              className={`group relative w-full bg-white rounded-xl p-3 sm:p-4 ring-1 ring-slate-200/70 duration-200 hover:shadow-md focus-within:ring-slate-300 ${
+                item.inSafe
+                  ? "border-l-4 border-emerald-400"
+                  : "border-l-4 border-red-400 ring-red-200/60 bg-red-50/40"
              }`}
            >
              <div className="flex items-start gap-3">
-              <span className="relative mt-1 inline-flex" aria-hidden="true">
+                <span
+                  className="relative mt-0.5 inline-flex"
+                  aria-hidden="true"
+                >
                  {!item.inSafe && (
                    <span className="absolute inline-flex h-3 w-3 rounded-full bg-red-400 opacity-75 animate-ping"></span>
                  )}
                  <span
-                  className={`inline-block w-3 h-3 rounded-full ${
-                    item.inSafe ? "bg-green-400" : "bg-red-500"
+                    className={`inline-block w-3 h-3 rounded-full ring-2 ring-white ${
+                      item.inSafe ? "bg-emerald-500" : "bg-red-500"
                    }`}
                    title={
                      item.inSafe ? "Im Schließfach" : "Nicht im Schließfach"
@@ -75,7 +70,9 @@ const Sidebar: React.FC = () => {
                <Object
                  title={item.item_name}
                  description={
-                  item.inSafe ? "Im Schließfach" : "Nicht im Schließfach"
+                    item.inSafe
+                      ? "Aktuell im Schließfach"
+                      : "Aktuell nicht im Schließfach"
                  }
                />
              </div>
@@ -83,11 +80,16 @@ const Sidebar: React.FC = () => {
          ))}
        </div>

-      <div className="mt-6 text-xs text-gray-400 flex items-center gap-4">
-        <span className="inline-block w-3 h-3 bg-green-400 rounded-full"></span>
-        Verfügbar
-        <span className="inline-block w-3 h-3 bg-red-400 rounded-full"></span>
+        <div className="mt-4 pt-3 border-t border-slate-200/70 text-[10px] sm:text-xs text-slate-500 items-center gap-4 hidden md:flex">
+          <span className="inline-flex items-center gap-1">
+            <span className="inline-block w-3 h-3 bg-emerald-500 rounded-full ring-2 ring-white shadow-sm"></span>
+            Im Schließfach
+          </span>
+          <span className="inline-flex items-center gap-1">
+            <span className="inline-block w-3 h-3 bg-red-500 rounded-full ring-2 ring-white shadow-sm"></span>
            Außerhalb des Schließfachs
+          </span>
+        </div>
      </div>
    </aside>
  );
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -1 +1,12 @@
+/* Tailwind (v4) */
@import "tailwindcss";
+
+/* Small touch target improvements */
+@layer base {
+  html:focus-within {
+    scroll-behavior: smooth;
+  }
+  :root {
+    color-scheme: light;
+  }
+}
--- a/frontend/src/layout/Layout.tsx
+++ b/frontend/src/layout/Layout.tsx
@@ -2,6 +2,7 @@ import React from "react";
 import "../App.css";
 import Header from "../components/Header";
 import Sidebar from "../components/Sidebar";
+import Footer from "../components/Footer";

 type LayoutProps = {
  children: React.ReactNode;
@@ -10,28 +11,24 @@ type LayoutProps = {

 const Layout: React.FC<LayoutProps> = ({ children, onLogout }) => {
  return (
-    <div className="min-h-screen flex bg-gradient-to-r from-blue-50 via-white to-blue-100">
-      {/* Sidebar */}
-      <div className="hidden md:block">
+    <div className="h-screen flex flex-col bg-slate-50 text-slate-800">
+      {/* Main */}
+      <main className="flex-1 min-h-0 overflow-hidden flex flex-col items-center px-3 sm:px-5 py-4 sm:py-8 pb-12">
+        <div className="w-full max-w-5xl flex flex-col gap-3 md:flex-row md:gap-6 md:items-stretch min-h-0 h-full">
+          <div className="hidden md:flex md:flex-col md:shrink-0 md:w-72 md:min-h-0 md:h-full">
            <Sidebar />
          </div>
-
-      {/* Main */}
-      <main className="flex-1 flex flex-col items-center py-10 px-4 md:py-14">
-        <div className="w-full max-w-3xl">
+          <div className="flex-1 min-w-0 min-h-0 h-full flex flex-col overflow-hidden">
+            <div className="w-full">
              <Header onLogout={onLogout} />
            </div>
-        <div className="w-full max-w-3xl bg-white/90 shadow-2xl rounded-3xl p-6 md:p-10 ring-1 ring-blue-100">
+            <div className="w-full bg-white shadow-md md:shadow-lg rounded-2xl p-4 sm:p-6 ring-1 ring-slate-200 flex-1 min-h-0 overflow-y-auto">
              {children}
            </div>
+          </div>
+        </div>
      </main>
-
-      {/* Mobile sidebar at bottom */}
-      <div className="fixed bottom-4 left-4 right-4 md:hidden z-10">
-        <div className="bg-white/95 backdrop-blur rounded-2xl shadow-xl ring-1 ring-blue-100 p-4">
-          <Sidebar />
-        </div>
-      </div>
+      <Footer />
    </div>
  );
 };
--- a/frontend/src/main.tsx
+++ b/frontend/src/main.tsx
@@ -2,11 +2,14 @@ import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
 import "./index.css";
 import App from "./App.tsx";
-import { ToastContainer } from "react-toastify";
+import { ToastContainer, Flip } from "react-toastify";
 import "react-toastify/dist/ReactToastify.css";
+import { QueryClientProvider } from "@tanstack/react-query";
+import { queryClient } from "./utils/queryClient";

 createRoot(document.getElementById("root")!).render(
  <StrictMode>
+    <QueryClientProvider client={queryClient}>
      <App />
      <ToastContainer
        position="top-right"
@@ -15,11 +18,12 @@ createRoot(document.getElementById("root")!).render(
        newestOnTop
        closeOnClick
        rtl={false}
-      pauseOnFocusLoss={false}
+        pauseOnFocusLoss
        draggable
        pauseOnHover
-      theme="light"
-      style={{ zIndex: 9999 }}
+        theme="colored"
+        transition={Flip}
      />
+    </QueryClientProvider>
  </StrictMode>
 );
--- a/frontend/src/utils/fetchData.ts
+++ b/frontend/src/utils/fetchData.ts
@@ -4,6 +4,22 @@ import { myToast } from "./toastify";
 // Event name used to notify the app when the list of items has been updated
 export const ALL_ITEMS_UPDATED_EVENT = "allItemsUpdated";
 export const BORROWABLE_ITEMS_UPDATED_EVENT = "borrowableItemsUpdated";
+export const AUTH_LOGOUT_EVENT = "authLogout";
+
+let sendError = false;
+
+function logout() {
+  Cookies.remove("token");
+  Cookies.remove("startDate");
+  Cookies.remove("endDate");
+  localStorage.removeItem("allItems");
+  localStorage.removeItem("allLoans");
+  localStorage.removeItem("userLoans");
+  localStorage.removeItem("borrowableItems");
+  window.dispatchEvent(new Event(ALL_ITEMS_UPDATED_EVENT));
+  window.dispatchEvent(new Event(BORROWABLE_ITEMS_UPDATED_EVENT));
+  window.dispatchEvent(new Event(AUTH_LOGOUT_EVENT));
+}

 export const fetchAllData = async (token: string | undefined) => {
  if (!token) return;
@@ -16,6 +32,16 @@ export const fetchAllData = async (token: string | undefined) => {
      },
    });

+    if (response.status === 500) {
+      if (!sendError) {
+        sendError = true;
+        myToast("Session expired. Please log in again.", "error");
+        logout();
+        return;
+      }
+      return;
+    }
+
    if (!response.ok) {
      myToast("Failed to fetch items", "error");
      return;
@@ -38,6 +64,16 @@ export const fetchAllData = async (token: string | undefined) => {
      },
    });

+    if (response.status === 500) {
+      if (!sendError) {
+        sendError = true;
+        myToast("Session expired. Please log in again.", "error");
+        logout();
+        return;
+      }
+      return;
+    }
+
    if (!response.ok) {
      myToast("Failed to fetch loans!", "error");
      return;
@@ -60,6 +96,16 @@ export const fetchAllData = async (token: string | undefined) => {
      },
    });

+    if (response.status === 500) {
+      if (!sendError) {
+        sendError = true;
+        myToast("Session expired. Please log in again.", "error");
+        logout();
+        return;
+      }
+      return;
+    }
+
    if (!response.ok) {
      myToast("Failed to fetch user loans!", "error");
      return;
@@ -122,6 +168,16 @@ export const getBorrowableItems = async () => {
      body: JSON.stringify({ startDate, endDate }),
    });

+    if (response.status === 500) {
+      if (!sendError) {
+        sendError = true;
+        myToast("Session expired. Please log in again.", "error");
+        logout();
+        return;
+      }
+      return;
+    }
+
    if (!response.ok) {
      myToast("Failed to fetch borrowable items", "error");
      return;
--- a/frontend/src/utils/queryClient.ts
+++ b/frontend/src/utils/queryClient.ts
@@ -0,0 +1,11 @@
+import { QueryClient } from "@tanstack/react-query";
+
+// Central QueryClient instance so utilities (e.g. file upload) can invalidate queries.
+export const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      refetchOnWindowFocus: false,
+      retry: 1,
+    },
+  },
+});
--- a/frontend/src/utils/toastify.ts
+++ b/frontend/src/utils/toastify.ts
@@ -1,17 +1,18 @@
-import { toast, type ToastOptions } from "react-toastify";
+import { toast, Flip, type ToastOptions } from "react-toastify";

 export type ToastType = "success" | "error" | "info" | "warning";

 export const myToast = (message: string, msgType: ToastType) => {
  let config: ToastOptions = {
    position: "top-right",
-    autoClose: 5000,
+    autoClose: 3000,
    hideProgressBar: false,
    closeOnClick: true,
    pauseOnHover: true,
    draggable: true,
    progress: undefined,
-    theme: "light",
+    theme: "colored",
+    transition: Flip,
  };
  toast[msgType](message, config);
 };
--- a/frontend/src/utils/userHandler.ts
+++ b/frontend/src/utils/userHandler.ts
@@ -1,5 +1,6 @@
 import { myToast } from "./toastify";
 import Cookies from "js-cookie";
+import { queryClient } from "./queryClient";

 export const handleDeleteLoan = async (loanID: number): Promise<boolean> => {
  try {
@@ -92,5 +93,10 @@ export const createLoan = async (startDate: string, endDate: string) => {
  removeArr = [];
  Cookies.set("removeArr", "[]");
  myToast("Ausleihe erfolgreich erstellt!", "success");
+
+  queryClient.invalidateQueries({ queryKey: ["userLoans"] });
+  queryClient.invalidateQueries({ queryKey: ["allLoans"] });
+  queryClient.invalidateQueries({ queryKey: ["borrowableItems"] });
+
  return true;
 };
--- a/frontend/tailwind.config.js
+++ b/frontend/tailwind.config.js
@@ -1,5 +1,6 @@
 module.exports = {
  content: [
+    "./index.html",
    "./src/**/*.{js,jsx,ts,tsx}",
    // add other paths if needed
  ],
Author	SHA1	Message	Date
theis.gaedigk	7faf95188d	added source code button	2025-08-21 18:53:33 +02:00
theis.gaedigk	79df00a17e	added footer component	2025-08-21 18:53:18 +02:00
theis.gaedigk	d1625d7e47	refactor help site	2025-08-21 13:00:01 +02:00
theis.gaedigk	a8377e5ec3	added help section	2025-08-21 12:48:03 +02:00
theis.gaedigk	8f1d401aa1	enhance sidebar item descriptions for clarity	2025-08-21 12:44:15 +02:00
theis.gaedigk	226a267ccb	updated example response in API documentation to include detailed item properties and entry creation timestamps	2025-08-21 00:38:28 +02:00
theis.gaedigk	fd9496645a	added detailed API documentation for retrieving loan details by loan code	2025-08-21 00:36:19 +02:00
theis.gaedigk	33bb64f44b	added ToDo.tsx to .gitignore	2025-08-20 18:14:15 +02:00
theis.gaedigk	2cf82c8dcb	fixed bug: error handeling	2025-08-20 18:09:33 +02:00
theis.gaedigk	bcf3cc08bb	added improved error handeling	2025-08-20 18:06:59 +02:00
theis.gaedigk	cd2b0e8e42	deleted unused notes	2025-08-20 18:06:40 +02:00
theis.gaedigk	4b79583574	added new api endpoint for getting the loan by the loan code	2025-08-20 17:07:49 +02:00
theis.gaedigk	c779a31bfa	updated toastify design	2025-08-20 13:38:54 +02:00
theis.gaedigk	c33f3e1101	refactor Layout component for improved sidebar responsiveness	2025-08-20 13:17:23 +02:00
theis.gaedigk	67dd74d3d3	refactor Sidebar component layout for improved responsiveness	2025-08-20 13:09:32 +02:00
theis.gaedigk	d82cde55cc	deleted unnecessary imports	2025-08-20 13:06:46 +02:00
theis.gaedigk	2b7f6e8e17	fixed sidebar displaying bug	2025-08-20 13:06:22 +02:00
theis.gaedigk	ccceb5840c	fixed sidebar display bug	2025-08-20 12:42:29 +02:00
theis.gaedigk	ff219d850b	fixed bug: Now you dont have to reload the page twice, after creating a loan	2025-08-20 12:30:37 +02:00
theis.gaedigk	ef19592b32	refactor docs	2025-08-20 01:29:58 +02:00
theis.gaedigk	8291968e7a	maked ui simpler	2025-08-20 01:07:00 +02:00
theis.gaedigk	2480bfab89	feat: update UI components and styles for improved user experience - Removed obsolete PDF file from the mock directory. - Updated index.html to change the favicon and title for the application. - Deleted unused vite.svg file and replaced it with shapes.svg. - Enhanced App component layout and styling. - Refined Form1 component with better spacing and updated styles. - Improved Form2 component to enhance item selection UI and responsiveness. - Updated Form4 component to improve loan display and interaction. - Enhanced Header component styling for better visibility. - Refined LoginForm component for a more modern look. - Updated Object component styles for better text visibility. - Improved Sidebar component layout and item display. - Updated global CSS for better touch target improvements. - Enhanced Layout component for better responsiveness and structure. - Updated main.tsx to change toast notification theme. - Updated tailwind.config.js to include index.html for Tailwind CSS processing.	2025-08-19 23:32:14 +02:00
theis.gaedigk	64bfbecd84	enhance documentation with additional context for item states and API responses	2025-08-19 21:40:28 +02:00
theis.gaedigk	d1494473ef	fixed display bug in the table	2025-08-19 21:37:32 +02:00
theis.gaedigk	cbcf282ca3	removed unnesesarry function	2025-08-19 21:26:48 +02:00
theis.gaedigk	c389b38cf5	added new log column "take_date" Also removed unnesesarry code notes	2025-08-19 21:24:41 +02:00
theis.gaedigk	4080d171cf	changed docs accordingly	2025-08-19 21:23:54 +02:00
theis.gaedigk	6d4afa46d7	added more API functions	2025-08-19 21:23:29 +02:00
theis.gaedigk	ffc8fbcefc	adjusted data structure	2025-08-19 21:23:15 +02:00
theis.gaedigk	a1435e3280	docs: Remove outdated quick start instructions from README	2025-08-19 19:43:48 +02:00
theis.gaedigk	61c0c8ac96	Overworked docs	2025-08-19 19:42:11 +02:00
theis.gaedigk	6c56c3e46d	refactor: Simplify and update backend API documentation for clarity and structure	2025-08-19 19:36:13 +02:00
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