added next js project/folder

fixed footer message
edited docs
2025-11-29 14:54:15 +01:00 · 2025-11-25 18:02:05 +01:00 · 2025-11-25 17:09:22 +01:00 · 2025-11-25 16:57:20 +01:00 · 2025-11-25 16:15:08 +01:00 · 2025-11-24 17:12:37 +01:00
45 changed files with 7239 additions and 2755 deletions
--- a/Docs/backend_API_docs/README.md
+++ b/Docs/backend_API_docs/README.md
@@ -1,87 +1,88 @@
-# Backend API (V2) Documentation
+# Borrow System API Documentation

-This document describes the current backend API routes and their real response shapes, based on the code in `backendV2`.
-
---
-
-## Base URLs
-
- Frontend: `https://insta.the1s.de`
- Backend: `https://backend.insta.the1s.de`
- Base path: `https://backend.insta.the1s.de/api`
-
-Service status: `https://status.the1s.de`
+**Frontend:** https://insta.the1s.de  
+**Backend base URL:** `https://backend.insta.the1s.de/api`

 ---

 ## Authentication

-All **protected** endpoints require an API key as a path parameter `:key`.
+All API endpoints require **either**:

-Rules for `:key`:
+### 1. Bearer Token (JWT)

- Exactly 8 characters
- Digits only (`^[0-9]{8}$`)
+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
+GET /api/items/ABC123
 ```

-On missing / invalid key:
-
- Status: `401 Unauthorized`
- Body (exact message depends on `authenticate` in `backendV2/services/authentication.js`)
-
-Auth-related modules:
-
- `backendV2/services/authentication.js`
- `backendV2/services/database.js`
-
-Route handlers:
-
- `backendV2/routes/api/api.route.js`
- `backendV2/routes/api/api.database.js`
+Where `ABC123` is your API key.  
+The API key is validated server-side.

 ---

-## Endpoints (Overview)
+## Common Response Codes

-1. **Public**
-
-   - `GET /api/all-items` – List all items (no auth; from original docs)
-
-2. **Items (authenticated)**
-
-   - `GET /api/items/:key` – List all items
-   - `POST /api/change-state/:key/:itemId/:state` – Toggle item safe state
-
-3. **Loans (authenticated)**
-   - `GET /api/get-loan-by-code/:key/:loan_code` – Get loan by code
-   - `POST /api/set-take-date/:key/:loan_code` – Set “take” date and mark items as out
-   - `POST /api/set-return-date/:key/:loan_code` – Set “return” date and mark items as returned
+- `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.

 ---

-## 1) Items
+## Endpoints

-### 1.1 Get all items
+### 1. Get All Items

 **GET** `/api/items/:key`

-Returns all items wrapped in a `data` property.
+Returns a list of all items.

- Handler: `getItemsFromDatabaseV2` in `api.database.js`
- SQL: `SELECT * FROM items;`
+#### Path Parameters

-#### Example request
+- `:key` – API key (string)
+
+#### Authentication
+
+- Either:
+  - Valid `Authorization: Bearer <token>`
+  - Or valid `:key` path parameter
+
+#### Request Example

 ```http
-GET https://backend.insta.the1s.de/api/items/12345678
+GET /api/items/ABC123 HTTP/1.1
+Host: backend.insta.the1s.de
 ```

-#### Successful response
+or
+
+```http
+GET /api/items/dummyKey HTTP/1.1
+Host: backend.insta.the1s.de
+Authorization: Bearer <JWT_TOKEN>
+```
+
+#### Successful Response (200)

 ```json
 {
@@ -90,8 +91,9 @@ GET https://backend.insta.the1s.de/api/items/12345678
      "id": 1,
      "item_name": "DJI 1er Mikro",
      "can_borrow_role": 4,
-      "in_safe": 1,
-      "safe_nr": "01",
+      "inSafe": 1,
+      "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",
@@ -101,245 +103,271 @@ GET https://backend.insta.the1s.de/api/items/12345678
 }
 ```

-#### Error response
+#### Error Response (500)

 ```json
-{ "message": "Failed to fetch items" }
+{
+  "message": "Failed to fetch items"
+}
 ```

-#### Status codes
-
- `200 OK` – success, `data` is an array (possibly empty)
- `401 Unauthorized` – invalid / missing key
- `500 Internal Server Error` – database error or `success: false` from DB layer
-
 ---

-### 2.2 Toggle item safe state
+### 2. Toggle Item Safe State
+
+Toggles `in_safe` between `0` and `1` for a given item.
+
+**Keep in mind that when you return a loan by code, the item states are automatically updated.**

 **POST** `/api/change-state/:key/:itemId`

-> You do not need this endpoint to set the states of the items when the items are taken out or returned. When you take or return a loan, the item states are set automatically by the loan endpoints. This endpoint is only for manually toggling the `inSafe` state of an item.
+#### Path Parameters

-Path parameters:
+- `:key` – API key (string)
+- `:itemId` – Item ID (integer)

- `:key` – API key (8 digits)
- `:itemId` – numeric `id` of the item
+#### Authentication

-Handler in `api.route.js` calls `changeInSafeStateV2(itemId)`, which executes:
+- Either Bearer token or `:key` API key.

-```sql
-UPDATE items SET in_safe = NOT in_safe WHERE id = ?
-```
-
-#### Example request
+#### Request Example

 ```http
-POST https://backend.insta.the1s.de/api/change-state/12345678/42
+POST /api/change-state/ABC123/42 HTTP/1.1
+Host: backend.insta.the1s.de
 ```

-(Will toggle `in_safe` for item `42`.)
-
-#### Successful response (current implementation)
+#### Successful Response (200)

 ```json
 {
-  "data": null
+  "data": {}
 }
 ```

-#### Error responses
+_(Implementation currently only returns `{ success: true }`, so `data` may be empty.)_

-Invalid `state` (anything other than `"0"` or `"1"`):
+#### Error Response (500)

 ```json
-{ "message": "Invalid state value" }
+{
+  "message": "Failed to update item state"
+}
 ```

-Failed update:
-
-```json
-{ "message": "Failed to update item state" }
-```
-
-#### Status codes
-
- `200 OK` – item state toggled
- `400 Bad Request` – invalid `state` parameter
- `401 Unauthorized` – invalid / missing key
- `500 Internal Server Error` – database/update failure or `success: false` from DB layer
-
 ---

-## 3) Loans
+### 3. Get Loan by Code

-### 3.1 Get loan by code
+Fetch loan information by `loan_code`.

 **GET** `/api/get-loan-by-code/:key/:loan_code`

-Path parameters:
+#### Path Parameters

- `:key` – API key
- `:loan_code` – 6-digit loan code (`^[0-9]{6}$` per DB constraint)
+- `:key` – API key (string)
+- `:loan_code` – Loan code (string)

-Database layer (`getLoanByCodeV2`) currently selects:
+#### Authentication

-```sql
-SELECT first_name, returned_date, take_date, lockers
-FROM loans
-WHERE loan_code = ?;
-```
+- Either Bearer token or `:key` API key.

-#### Example request
+#### Request Example

 ```http
-GET https://backend.insta.the1s.de/api/get-loan-by-code/12345678/646473
+GET /api/get-loan-by-code/ABC123/12345 HTTP/1.1
+Host: backend.insta.the1s.de
 ```

-#### Successful response
+#### Successful Response (200)

 ```json
 {
  "data": {
-    "first_name": "Theis",
+    "username": "john",
    "returned_date": null,
-    "take_date": "2025-08-25T13:23:00.000Z",
-    "lockers": ["01", "03"]
+    "take_date": "2025-01-01T10:00:00.000Z",
+    "lockers": "[1, 2, 3]"
  }
 }
 ```

-#### Error response
-
-```json
-{ "message": "Loan not found" }
-```
-
-#### Status codes
-
- `200 OK` – loan found
- `401 Unauthorized` – invalid / missing key
- `404 Not Found` – no matching loan for this `loan_code`
-
---
-
-### 3.2 Set take date
-
-**POST** `/api/set-take-date/:key/:loan_code`
-
-Path parameters:
-
- `:key` – API key
- `:loan_code` – loan code
-
-#### Example request
-
-```http
-POST https://backend.insta.the1s.de/api/set-take-date/12345678/646473
-```
-
-#### Successful response
+#### Error Response (404)

 ```json
 {
-  "data": null
+  "message": "Loan not found"
 }
 ```

-#### Error response
-
-```json
-{ "message": "Failed to set take date" }
-```
-
-#### Status codes
-
- `200 OK` – take date set and items marked as out
- `401 Unauthorized` – invalid / missing key
- `500 Internal Server Error` – invalid loan, missing items, or DB error / `success: false`
-
 ---

-### 3.3 Set return date
+### 4. Set Loan Return Date
+
+Sets `returned_date = NOW()` on a loan and updates related items:
+
+- `in_safe = 1`
+- `currently_borrowing = NULL`
+- `last_borrowed_person = username`

 **POST** `/api/set-return-date/:key/:loan_code`

-Path parameters:
+#### Path Parameters

- `:key` – API key
- `:loan_code` – loan code
+- `:key` – API key (string)
+- `:loan_code` – Loan code (string)

-#### Example request
+#### Authentication
+
+- Either Bearer token or `:key` API key.
+
+#### Request Example

 ```http
-POST https://backend.insta.the1s.de/api/set-return-date/12345678/646473
+POST /api/set-return-date/ABC123/12345 HTTP/1.1
+Host: backend.insta.the1s.de
 ```

-#### Successful response (current implementation)
+#### Successful Response (200)

 ```json
 {
-  "data": null
+  "data": {}
 }
 ```

-#### Error response
+#### Error Response (500)

 ```json
-{ "message": "Failed to set return date" }
+{
+  "message": "Failed to set return date"
+}
 ```

-#### Status codes
-
- `200 OK` – return date set and items marked as returned
- `401 Unauthorized` – invalid / missing key
- `500 Internal Server Error` – invalid loan, missing items, or DB error / `success: false`
-
 ---

-## Common Response Shapes
+### 5. Set Loan Take Date

-**Success – list (authenticated items):**
+Sets `take_date = NOW()` on a loan and updates related items:
+
+- `in_safe = 0`
+- `currently_borrowing = username`
+
+**POST** `/api/set-take-date/:key/:loan_code`
+
+#### Path Parameters
+
+- `:key` – API key (string)
+- `:loan_code` – Loan code (string)
+
+#### Authentication
+
+- Either Bearer token or `:key` API key.
+
+#### Request Example
+
+```http
+POST /api/set-take-date/ABC123/LOAN-12345 HTTP/1.1
+Host: backend.insta.the1s.de
+```
+
+#### Successful Response (200)

 ```json
 {
-  "data": [
-    /* array of rows */
-  ]
+  "data": {}
 }
 ```

-**Success – single loan:**
+#### Error Response (500)
+
+```json
+{
+  "message": "Failed to set take date"
+}
+```
+
+---
+
+### 6. Open Door by Door Key
+
+Looks up an item by its `door_key`, toggles `in_safe`, and returns safe information.
+
+**GET** `/api/open-door/:key/:doorKey`
+
+#### Path Parameters
+
+- `:key` – API key (string)
+- `:doorKey` – Door key/token (string) used by hardware to identify the locker.
+
+#### Authentication
+
+- Either Bearer token or `:key` API key.
+
+#### Request Example
+
+```http
+GET /api/open-door/ABC123/123 HTTP/1.1
+Host: backend.insta.the1s.de
+```
+
+#### Successful Response (200)

 ```json
 {
  "data": {
-    /* selected loan fields */
+    "safe_nr": 5,
+    "id": 42
  }
 }
 ```

-**Success – mutations (current code):**
+#### Error Response (500)

 ```json
-{ "data": null }
+{
+  "message": "Failed to open door"
+}
 ```

-**Errors:**
+---
+
+## Authentication Error Messages
+
+### Missing credentials
+
+Status: `401`

 ```json
-{ "message": "Failed to fetch items" }
-{ "message": "Failed to update item state" }
-{ "message": "Invalid state value" }
-{ "message": "Loan not found" }
-{ "message": "Failed to set return date" }
-{ "message": "Failed to set take date" }
+{
+  "message": "Unauthorized"
+}
 ```

-**HTTP Status Codes:**
+### Invalid JWT

- `200 OK` – operation succeeded
- `400 Bad Request` – invalid `state` parameter
- `401 Unauthorized` – invalid/missing API key
- `404 Not Found` – loan not found
- `500 Internal Server Error` – database / server failure or `success: false` from DB layer
+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.
--- a/FrontendV2/Dockerfile
+++ b/FrontendV2/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:18 as builder
+FROM node:22-alpine AS builder

 WORKDIR /app

--- a/FrontendV2/src/components/footer/Footer.tsx
+++ b/FrontendV2/src/components/footer/Footer.tsx
@@ -14,7 +14,7 @@ export const Footer = () => {
      left="0"
      right="0"
    >
-      Made with ❤️ by Theis Gaedigk - Year 2019 at MCS-Bochum
+      Made with ❤️ by Theis Gaedigk - Class of 2019 at MCS-Bochum
      <br />
      Frontend-Version: {info ? info["frontend-info"].version : "N/A"} |
      Backend-Version: {info ? info["backend-info"].version : "N/A"}
--- a/FrontendV2/vite.config.ts
+++ b/FrontendV2/vite.config.ts
@@ -1,17 +1,16 @@
 import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
+import svgr from "vite-plugin-svgr";
 import tailwindcss from "@tailwindcss/vite";
+import tsconfigPaths from "vite-tsconfig-paths";

 export default defineConfig({
-  plugins: [tailwindcss()],
+  plugins: [react(), svgr(), tailwindcss(), tsconfigPaths()],
  server: {
    host: "0.0.0.0",
-    allowedHosts: ["insta.the1s.de"],
-    port: 8101,
-    watch: { usePolling: true },
-    hmr: {
-      host: "insta.the1s.de",
-      port: 8101,
-      protocol: "wss",
+    port: 8001,
+    watch: {
+      usePolling: true,
    },
  },
 });
--- a/admin/src/components/AddItemForm.tsx
+++ b/admin/src/components/AddItemForm.tsx
@@ -29,8 +29,8 @@ const AddItemForm: React.FC<AddItemFormProps> = ({ onClose, alert }) => {
              <Input id="item_name" placeholder="z.B. Laptop" />
            </Field.Root>
            <Field.Root>
-              <Field.Label>Schließfachnummer (immer zwei Zahlen)</Field.Label>
-              <Input id="lockerNumber" placeholder="Nummer 01 - 06" />
+              <Field.Label>Schließfachnummer</Field.Label>
+              <Input id="safe_nr" placeholder="Nummer 1 - 6" />
            </Field.Root>
            <Field.Root>
              <Field.Label>Ausleih-Berechtigung (Rolle)</Field.Label>
@@ -57,17 +57,15 @@ const AddItemForm: React.FC<AddItemFormProps> = ({ onClose, alert }) => {
                (document.getElementById("can_borrow_role") as HTMLInputElement)
                  ?.value
              );
-              const lockerValue = (
-                document.getElementById("lockerNumber") as HTMLInputElement
+              const safeNrValue = (
+                document.getElementById("safe_nr") as HTMLInputElement
              )?.value.trim();

-              const lockerNumber =
-                lockerValue === "" ? null : Number(lockerValue);
+              const safeNr = safeNrValue === "" ? null : safeNrValue;

              if (!name || Number.isNaN(role)) return;
-              if (lockerNumber !== null && Number.isNaN(lockerNumber)) return;

-              const res = await createItem(name, role, lockerNumber);
+              const res = await createItem(name, role, safeNr);
              if (res.success) {
                alert(
                  "success",
--- a/admin/src/components/ItemTable.tsx
+++ b/admin/src/components/ItemTable.tsx
@@ -38,6 +38,7 @@ type Items = {
  can_borrow_role: string;
  in_safe: boolean;
  safe_nr: string;
+  door_key: string;
  entry_created_at: string;
  entry_updated_at: string;
  last_borrowed_person: string | null;
@@ -68,7 +69,13 @@ const ItemTable: React.FC = () => {

  const handleLockerNumberChange = (id: number, value: string) => {
    setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, lockerNumber: 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))
    );
  };

@@ -204,6 +211,9 @@ const ItemTable: React.FC = () => {
              <Table.ColumnHeader>
                <strong>Schließfachnummer</strong>
              </Table.ColumnHeader>
+              <Table.ColumnHeader>
+                <strong>Schlüssel</strong>
+              </Table.ColumnHeader>
              <Table.ColumnHeader>
                <strong>Eintrag erstellt am</strong>
              </Table.ColumnHeader>
@@ -290,6 +300,16 @@ const ItemTable: React.FC = () => {
                    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>
@@ -301,6 +321,7 @@ const ItemTable: React.FC = () => {
                        item.id,
                        item.item_name,
                        item.safe_nr,
+                        item.door_key,
                        item.can_borrow_role
                      ).then((response) => {
                        if (response.success) {
--- a/admin/src/utils/userActions.ts
+++ b/admin/src/utils/userActions.ts
@@ -165,7 +165,7 @@ export const deleteItem = async (itemId: number) => {
 export const createItem = async (
  item_name: string,
  can_borrow_role: number,
-  lockerNumber: number | null
+  lockerNumber: string | null
 ) => {
  console.log(JSON.stringify({ item_name, can_borrow_role, lockerNumber }));
  try {
@@ -184,7 +184,7 @@ export const createItem = async (
      return {
        success: false,
        message:
-          "Fehler beim Erstellen des Gegenstands. Der Name des Gegenstandes darf nicht mehrmals vergeben werden.",
+          "Fehler beim Erstellen des Gegenstands. Der Name des Gegenstandes und die Schließfachnummer dürfen nicht mehrmals vergeben werden.",
      };
    }
    return { success: true };
@@ -198,9 +198,9 @@ export const handleEditItems = async (
  itemId: number,
  item_name: string,
  safe_nr: string | null,
+  door_key: string | null,
  can_borrow_role: string
 ) => {
-  const newSafeNr = Number(safe_nr || 0);
  try {
    const response = await fetch(
      `${API_BASE}/api/admin/item-data/edit-item/${itemId}`,
@@ -210,7 +210,7 @@ export const handleEditItems = async (
          "Content-Type": "application/json",
          Authorization: `Bearer ${Cookies.get("token")}`,
        },
-        body: JSON.stringify({ item_name, newSafeNr, can_borrow_role }),
+        body: JSON.stringify({ item_name, safe_nr, door_key, can_borrow_role }),
      }
    );
    if (!response.ok) {
--- a/admin/vite.config.ts
+++ b/admin/vite.config.ts
@@ -8,13 +8,9 @@ export default defineConfig({
  plugins: [react(), svgr(), tailwindcss(), tsconfigPaths()],
  server: {
    host: "0.0.0.0",
-    allowedHosts: ["admin.insta.the1s.de"],
-    port: 8103,
-    watch: { usePolling: true },
-    hmr: {
-      host: "admin.insta.the1s.de",
-      port: 8103,
-      protocol: "wss",
+    port: 8003,
+    watch: {
+      usePolling: true,
    },
  },
 });
--- a/backend/Dockerfile
+++ b/backend/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 8002
-CMD ["npm", "start"]
--- a/backend/info.json
+++ b/backend/info.json
@@ -1,8 +0,0 @@
-{
-    "backend-info": {
-        "version": "v2.0 (dev)"
-    },
-    "frontend-info": {
-        "version": "v2.0 (dev)"
-    }
-}
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,22 +0,0 @@
-{
-  "name": "backend",
-  "version": "1.0.0",
-  "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "node server.js"
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "description": "",
-  "dependencies": {
-    "cors": "^2.8.5",
-    "dotenv": "^17.2.1",
-    "ejs": "^3.1.10",
-    "express": "^5.1.0",
-    "jose": "^6.0.12",
-    "mysql2": "^3.14.3",
-    "nodemailer": "^7.0.6"
-  }
-}
--- a/backend/routes/api.js
+++ b/backend/routes/api.js
@@ -1,599 +0,0 @@
-import express from "express";
-import {
-  loginFunc,
-  getItemsFromDatabase,
-  getLoansFromDatabase,
-  getUserLoansFromDatabase,
-  deleteLoanFromDatabase,
-  getBorrowableItemsFromDatabase,
-  createLoanInDatabase,
-  onTake,
-  loginAdmin,
-  onReturn,
-  getAllUsers,
-  deleteUserID,
-  handleEdit,
-  createUser,
-  getAllLoans,
-  getAllItems,
-  deleteItemID,
-  createItem,
-  changeUserPassword,
-  changeUserPasswordFRONTEND,
-  changeInSafeStateV2,
-  updateItemByID,
-  getAllApiKeys,
-  createAPIentry,
-  deleteAPKey,
-  getLoanInfoWithID,
-  SETdeleteLoanFromDatabase,
-} from "../services/database.js";
-import { authenticate, generateToken } from "../services/tokenService.js";
-const router = express.Router();
-import nodemailer from "nodemailer";
-import dotenv from "dotenv";
-dotenv.config();
-
-// Nice HTML + text templates for the loan email
-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: ${formatDateTime(createdDate)}`,
-  ].join("\n");
-}
-
-function sendMailLoan(user, items, startDate, endDate, createdDate) {
-  const transporter = nodemailer.createTransport({
-    host: process.env.MAIL_HOST,
-    port: process.env.MAIL_PORT,
-    secure: true,
-    auth: {
-      user: process.env.MAIL_USER,
-      pass: process.env.MAIL_PASSWORD,
-    },
-  });
-
-  (async () => {
-    const info = await transporter.sendMail({
-      from: '"Ausleihsystem" <noreply@mcs-medien.de>',
-      to: process.env.MAIL_SENDEES,
-      subject: "Eine neue Ausleihe wurde erstellt!",
-      text: buildLoanEmailText({
-        user,
-        items,
-        startDate,
-        endDate,
-        createdDate,
-      }),
-      html: buildLoanEmail({ user, items, startDate, endDate, createdDate }),
-    });
-
-    console.log("Message sent:", info.messageId);
-  })();
-  console.log("sendMailLoan called");
-}
-
-const formatDateTime = (value) => {
-  if (value == null) return "N/A";
-
-  const toOut = (d) => {
-    if (!(d instanceof Date) || isNaN(d.getTime())) return "N/A";
-    const dd = String(d.getDate()).padStart(2, "0");
-    const mm = String(d.getMonth() + 1).padStart(2, "0");
-    const yyyy = d.getFullYear();
-    const hh = String(d.getHours()).padStart(2, "0");
-    const mi = String(d.getMinutes()).padStart(2, "0");
-    return `${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";
-};
-
-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,
-      role: result.data.role,
-    });
-    res.status(200).json({ message: "Login successful", token });
-  } else {
-    res.status(401).json({ message: "Invalid credentials" });
-  }
-});
-
-router.get("/items", authenticate, async (req, res) => {
-  const result = await getItemsFromDatabase(req.user.role);
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else {
-    res.status(500).json({ message: "Failed to fetch items" });
-  }
-});
-
-router.get("/loans", authenticate, async (req, res) => {
-  const result = await getLoansFromDatabase();
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else {
-    res.status(500).json({ message: "Failed to fetch loans" });
-  }
-});
-
-router.get("/userLoans", authenticate, async (req, res) => {
-  const result = await getUserLoansFromDatabase(req.user.username);
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else {
-    res.status(500).json({ message: "Failed to fetch user loans" });
-  }
-});
-
-router.delete("/deleteLoan/:id", authenticate, async (req, res) => {
-  const loanId = req.params.id;
-  const result = await deleteLoanFromDatabase(loanId);
-  if (result.success) {
-    res.status(200).json({ message: "Loan deleted successfully" });
-  } else {
-    res.status(500).json({ message: "Failed to delete loan" });
-  }
-});
-
-router.delete("/SETdeleteLoan/: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.post("/borrowableItems", 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" });
-  }
-});
-
-router.post("/takeLoan/:id", authenticate, async (req, res) => {
-  const loanId = req.params.id;
-  const result = await onTake(loanId);
-  if (result.success) {
-    res.status(200).json({ message: "Loan taken successfully" });
-  } else {
-    res.status(500).json({ message: "Failed to take loan" });
-  }
-});
-
-router.post("/returnLoan/:id", authenticate, async (req, res) => {
-  const loanId = req.params.id;
-  const result = await onReturn(loanId);
-  if (result.success) {
-    res.status(200).json({ message: "Loan returned successfully" });
-  } else {
-    res.status(500).json({ message: "Failed to return loan" });
-  }
-});
-
-router.post("/createLoan", authenticate, async (req, res) => {
-  try {
-    const { items, startDate, endDate } = 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,
-      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.post("/changePassword", authenticate, async (req, res) => {
-  const { oldPassword, newPassword } = req.body || {};
-  const username = req.user.username;
-  const result = await changeUserPasswordFRONTEND(
-    username,
-    oldPassword,
-    newPassword
-  );
-  if (result.success) {
-    res.status(200).json({ message: "Password changed successfully" });
-  } else {
-    res.status(500).json({ message: "Failed to change password" });
-  }
-});
-
-// Admin panel functions
-
-router.post("/loginAdmin", async (req, res) => {
-  const { username, password } = req.body || {};
-  if (!username || !password) {
-    return res
-      .status(400)
-      .json({ message: "Username and password are required" });
-  }
-
-  const result = await loginAdmin(username, password);
-  if (result.success) {
-    const token = await generateToken({
-      username: result.data.username,
-      role: result.data.role,
-    });
-
-    return res.status(200).json({
-      message: "Login successful",
-      first_name: result.data.first_name,
-      token,
-    });
-  }
-
-  return res.status(401).json({ message: "Invalid credentials" });
-});
-
-router.get("/allUsers", authenticate, async (req, res) => {
-  const result = await getAllUsers();
-  if (result.success) {
-    return res.status(200).json(result.data);
-  }
-  return res.status(500).json({ message: "Failed to fetch users" });
-});
-
-router.delete("/deleteUser/:id", authenticate, async (req, res) => {
-  const userId = req.params.id;
-  const result = await deleteUserID(userId);
-  if (result.success) {
-    return res.status(200).json({ message: "User deleted successfully" });
-  }
-  return res.status(500).json({ message: "Failed to delete user" });
-});
-
-router.get("/verifyToken", authenticate, async (req, res) => {
-  res.status(200).json({ message: "Token is valid", user: req.user });
-});
-
-router.post("/editUser/:id", authenticate, async (req, res) => {
-  const userId = req.params.id;
-  const { username, role } = req.body || {};
-  const result = await handleEdit(userId, username, role);
-  if (result.success) {
-    return res.status(200).json({ message: "User edited successfully" });
-  }
-  return res.status(500).json({ message: "Failed to edit user" });
-});
-
-router.post("/createUser", authenticate, async (req, res) => {
-  const { username, role, password } = req.body || {};
-  const result = await createUser(username, role, password);
-  if (result.success) {
-    return res.status(201).json({ message: "User created successfully" });
-  }
-  return res.status(500).json({ message: "Failed to create user" });
-});
-
-router.get("/allLoans", authenticate, async (req, res) => {
-  const result = await getAllLoans();
-  if (result.success) {
-    return res.status(200).json(result.data);
-  }
-  return res.status(500).json({ message: "Failed to fetch loans" });
-});
-
-router.get("/allItems", authenticate, async (req, res) => {
-  const result = await getAllItems();
-  if (result.success) {
-    return res.status(200).json(result.data);
-  }
-  return res.status(500).json({ message: "Failed to fetch items" });
-});
-
-router.delete("/deleteItem/:id", authenticate, async (req, res) => {
-  const itemId = req.params.id;
-  const result = await deleteItemID(itemId);
-  if (result.success) {
-    return res.status(200).json({ message: "Item deleted successfully" });
-  }
-  return res.status(500).json({ message: "Failed to delete item" });
-});
-
-router.post("/createItem", authenticate, async (req, res) => {
-  const { item_name, can_borrow_role } = req.body || {};
-  const result = await createItem(item_name, can_borrow_role);
-  if (result.success) {
-    return res.status(201).json({ message: "Item created successfully" });
-  }
-  return res.status(500).json({ message: "Failed to create item" });
-});
-
-router.post("/changePWadmin", authenticate, async (req, res) => {
-  const newPassword = req.body.newPassword;
-  if (!newPassword) {
-    return res.status(400).json({ message: "New password is required" });
-  }
-
-  const result = await changeUserPassword(req.body.username, newPassword);
-  if (result.success) {
-    return res.status(200).json({ message: "Password changed successfully" });
-  }
-  return res.status(500).json({ message: "Failed to change password" });
-});
-
-router.post("/updateItemByID", authenticate, async (req, res) => {
-  const role = req.body.can_borrow_role;
-  const itemId = req.body.itemId;
-  const item_name = req.body.item_name;
-  const result = await updateItemByID(itemId, item_name, role);
-  if (result.success) {
-    return res.status(200).json({ message: "Item updated successfully" });
-  }
-  return res.status(500).json({ message: "Failed to update item" });
-});
-
-router.put("/changeSafeState/:itemId", authenticate, async (req, res) => {
-  const itemId = req.params.itemId;
-  const result = await changeInSafeStateV2(itemId);
-  if (result.success) {
-    return res
-      .status(200)
-      .json({ message: "Item safe state updated successfully" });
-  }
-  return res.status(500).json({ message: "Failed to update item safe state" });
-});
-
-router.get("/apiKeys", authenticate, async (req, res) => {
-  const result = await getAllApiKeys();
-  if (result.success) {
-    return res.status(200).json(result.data);
-  }
-  return res.status(500).json({ message: "Failed to fetch API keys" });
-});
-
-router.delete("/deleteAPKey/:id", authenticate, async (req, res) => {
-  const apiKeyId = req.params.id;
-  const result = await deleteAPKey(apiKeyId);
-  if (result.success) {
-    return res.status(200).json({ message: "API key deleted successfully" });
-  }
-  return res.status(500).json({ message: "Failed to delete API key" });
-});
-
-router.post("/createAPIentry", authenticate, async (req, res) => {
-  const apiKey = req.body.apiKey;
-  const user = req.body.user;
-  if (!apiKey || !user) {
-    return res.status(400).json({ message: "API key and user are required" });
-  }
-
-  // Ensure apiKey is a number
-  const apiKeyNum = Number(apiKey);
-  if (!Number.isFinite(apiKeyNum)) {
-    return res.status(400).json({ message: "API key must be a number" });
-  }
-
-  const result = await createAPIentry(apiKeyNum, user);
-  if (result.success) {
-    return res.status(201).json({ message: "API key created successfully" });
-  }
-  if (result.code === "DUPLICATE") {
-    return res.status(409).json({ message: "API key already exists" });
-  }
-  return res.status(500).json({ message: "Failed to create API key" });
-});
-
-router.get("/apiKeys/validate/:key", async (req, res) => {
-  try {
-    const rawKey = req.params.key;
-    const result = await getAllApiKeys();
-    if (!result.success || !Array.isArray(result.data)) {
-      return res.status(500).json({ valid: false });
-    }
-
-    const isValid = result.data.some((entry) => {
-      const val = String(
-        entry?.key ?? entry?.apiKey ?? entry?.api_key ?? entry
-      );
-      return val === String(rawKey);
-    });
-
-    return res.status(200).json({ valid: isValid });
-  } catch (err) {
-    console.error("validate api key error:", err);
-    return res.status(500).json({ valid: false });
-  }
-});
-
-export default router;
--- a/backend/routes/apiV2.js
+++ b/backend/routes/apiV2.js
@@ -1,133 +0,0 @@
-import express from "express";
-import dotenv from "dotenv";
-import {
-  getItemsFromDatabaseV2,
-  changeInSafeStateV2,
-  setTakeDateV2,
-  setReturnDateV2,
-  getLoanByCodeV2,
-  getAllLoansV2,
-  getAPIkey,
-} from "../services/database.js";
-
-dotenv.config();
-const router = express.Router();
-
-async function validateAPIKey(apiKey) {
-  try {
-    if (!apiKey) return false;
-    const result = await getAPIkey();
-    if (!result?.success || !Array.isArray(result.data)) return false;
-    return result.data.some((row) => String(row.apiKey) === String(apiKey));
-  } catch (err) {
-    console.error("validateAPIKey error:", err);
-    return false;
-  }
-}
-
-// Add a guard that returns Access Denied instead of hanging
-const apiKeyGuard = async (req, res, next) => {
-  try {
-    const key = req.params.key;
-    if (!key) {
-      return res
-        .status(401)
-        .json({ message: "Access denied: missing API key" });
-    }
-    const ok = await validateAPIKey(key);
-    if (!ok) {
-      return res
-        .status(401)
-        .json({ message: "Access denied: invalid API key" });
-    }
-    next();
-  } catch (e) {
-    console.error("apiKeyGuard error:", e);
-    res.status(500).json({ message: "Internal server error" });
-  }
-};
-
-// Route for API to get ALL items from the database
-router.get("/items/:key", apiKeyGuard, async (req, res) => {
-  const result = await getItemsFromDatabaseV2();
-  if (result.success) {
-    res.status(200).json({ data: result.data });
-  } else {
-    res.status(500).json({ message: "Failed to fetch items" });
-  }
-});
-
-// Route for API to control the position of an item
-router.post(
-  "/controlInSafe/:key/:itemId/:state",
-  apiKeyGuard,
-  async (req, res) => {
-    const itemId = req.params.itemId;
-    const state = req.params.state;
-
-    if (state === "1" || state === "0") {
-      const result = await changeInSafeStateV2(itemId, state);
-      if (result.success) {
-        res.status(200).json({ data: result.data });
-      } else {
-        res.status(500).json({ message: "Failed to update item state" });
-      }
-    } else {
-      res.status(400).json({ message: "Invalid state value" });
-    }
-  }
-);
-
-// Route for API to get a loan by its code
-router.get("/getLoanByCode/:key/:loan_code", apiKeyGuard, async (req, res) => {
-  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 by the loan code
-router.post("/setReturnDate/:key/:loan_code", apiKeyGuard, async (req, res) => {
-  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" });
-  }
-});
-
-// Route for API to set the take away date by the loan code
-router.post("/setTakeDate/:key/:loan_code", apiKeyGuard, async (req, res) => {
-  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" });
-  }
-});
-
-// Route for API to get ALL loans from the database without sensitive info (only for landingpage)
-router.get("/allLoans", async (req, res) => {
-  const result = await getAllLoansV2();
-  if (result.success) {
-    return res.status(200).json(result.data);
-  }
-  return res.status(500).json({ message: "Failed to fetch loans" });
-});
-
-// Route for API to get ALL items from the database (only for landingpage)
-router.get("/allItems", async (req, res) => {
-  const result = await getItemsFromDatabaseV2();
-  if (result.success) {
-    res.status(200).json(result.data);
-  } else {
-    res.status(500).json({ message: "Failed to fetch items" });
-  }
-});
-
-export default router;
--- a/backend/server.js
+++ b/backend/server.js
@@ -1,37 +0,0 @@
-import express from "express";
-import cors from "cors";
-import env from "dotenv";
-import apiRouter from "./routes/api.js";
-import apiRouterV2 from "./routes/apiV2.js";
-env.config();
-const app = express();
-const port = 8002;
-import serverInfo from "./info.json" assert { type: "json" }
-
-app.use(cors());
-// Increase body size limits to support large CSV JSON payloads
-app.use(express.urlencoded({ extended: true, limit: "10mb" }));
-app.set("view engine", "ejs");
-app.use(express.json({ limit: "10mb" }));
-
-app.use("/api", apiRouter);
-app.use("/apiV2", apiRouterV2);
-
-app.get("/", (req, res) => {
-  res.render("index.ejs");
-});
-
-app.get("/server-info", async (req, res) => {
-  res.status(200).json(serverInfo);
-});
-
-app.listen(port, () => {
-  console.log(`Server is running on port: ${port}`);
-});
-
-// error handling code
-app.use((err, req, res, next) => {
-  // Log the error stack and send a generic error response
-  console.error(err.stack);
-  res.status(500).send("Something broke!");
-});
--- a/backend/services/database.js
+++ b/backend/services/database.js
@@ -1,551 +0,0 @@
-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 loginFunc = async (username, password) => {
-  const [result] = await pool.query(
-    "SELECT * FROM users WHERE username = ? AND password = ?",
-    [username, password]
-  );
-  if (result.length > 0) return { success: true, data: result[0] };
-  return { success: false };
-};
-
-export const getItemsFromDatabaseV2 = async () => {
-  const [rows] = await pool.query("SELECT * FROM items;");
-  if (rows.length > 0) {
-    return { success: true, data: rows };
-  }
-  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) => {
-  const [result] = await pool.query(
-    "UPDATE items SET in = NOT inSafe WHERE id = ?",
-    [itemId]
-  );
-  if (result.affectedRows > 0) {
-    return { success: true };
-  }
-  return { success: false };
-};
-
-export const setReturnDateV2 = async (loanCode) => {
-  const [items] = await pool.query(
-    "SELECT loaned_items_id FROM loans WHERE loan_code = ?",
-    [loanCode]
-  );
-
-  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 [setItemStates] = await pool.query(
-    "UPDATE items SET inSafe = 1 WHERE id IN (?)",
-    [itemIds]
-  );
-
-  const [result] = await pool.query(
-    "UPDATE loans SET returned_date = NOW() WHERE loan_code = ?",
-    [loanCode]
-  );
-
-  if (result.affectedRows > 0 && setItemStates.affectedRows > 0) {
-    return { success: true };
-  }
-  return { success: false };
-};
-
-export const setTakeDateV2 = async (loanCode) => {
-  const [items] = await pool.query(
-    "SELECT loaned_items_id FROM loans WHERE loan_code = ?",
-    [loanCode]
-  );
-
-  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 [setItemStates] = await pool.query(
-    "UPDATE items SET inSafe = 0 WHERE id IN (?)",
-    [itemIds]
-  );
-
-  const [result] = await pool.query(
-    "UPDATE loans SET take_date = NOW() WHERE loan_code = ?",
-    [loanCode]
-  );
-
-  if (result.affectedRows > 0 && setItemStates.affectedRows > 0) {
-    return { success: true };
-  }
-  return { success: false };
-};
-
-export const getItemsFromDatabase = async (role) => {
-  const sql =
-    role == 0
-      ? "SELECT * FROM items;"
-      : "SELECT * FROM items WHERE can_borrow_role >= ?";
-  const params = role == 0 ? [] : [role];
-
-  const [rows] = await pool.query(sql, params);
-  if (rows.length > 0) {
-    return { success: true, data: rows };
-  }
-  return { success: false };
-};
-
-export const getLoansFromDatabase = async () => {
-  const [rows] = await pool.query("SELECT * FROM loans;");
-  return { success: true, data: rows.length > 0 ? rows : null };
-};
-
-export const getUserLoansFromDatabase = async (username) => {
-  const [result] = await pool.query(
-    "SELECT * FROM loans WHERE username = ? AND deleted = 0;",
-    [username]
-  );
-  if (result.length > 0) {
-    return { success: true, data: result };
-  } else if (result.length == 0) {
-    return { success: true, data: "No loans found for this user" };
-  } else {
-    return { success: false };
-  }
-};
-
-export const deleteLoanFromDatabase = async (loanId) => {
-  const [result] = await pool.query("DELETE FROM loans WHERE id = ?;", [
-    loanId,
-  ]);
-  if (result.affectedRows > 0) {
-    return { success: true };
-  } else {
-    return { success: false };
-  }
-};
-
-export const SETdeleteLoanFromDatabase = async (loanId) => {
-  const [result] = await pool.query(
-    "UPDATE loans SET deleted = 1 WHERE id = ?;",
-    [loanId]
-  );
-  if (result.affectedRows > 0) {
-    return { success: true };
-  } else {
-    return { success: false };
-  }
-};
-
-export const getBorrowableItemsFromDatabase = async (
-  startDate,
-  endDate,
-  role = 0
-) => {
-  // Overlap if: loan.start < end AND effective_end > start
-  // effective_end is returned_date if set, otherwise end_date
-  const hasRoleFilter = Number(role) > 0;
-
-  const sql = `
-    SELECT i.*
-    FROM items i
-    WHERE ${hasRoleFilter ? "i.can_borrow_role >= ? AND " : ""}NOT EXISTS (
-      SELECT 1
-      FROM loans l
-      JOIN JSON_TABLE(l.loaned_items_id, '$[*]' COLUMNS (item_id INT PATH '$')) jt
-      WHERE jt.item_id = i.id
-        AND l.deleted = 0
-        AND l.start_date < ?
-        AND COALESCE(l.returned_date, l.end_date) > ?
-    );
-  `;
-
-  const params = hasRoleFilter
-    ? [role, endDate, startDate]
-    : [endDate, startDate];
-
-  const [rows] = await pool.query(sql, params);
-  if (rows.length > 0) {
-    return { success: true, data: rows };
-  }
-  return { success: false };
-};
-
-export const getLoanInfoWithID = async (loanId) => {
-  const [rows] = await pool.query("SELECT * FROM loans WHERE id = ?;", [
-    loanId,
-  ]);
-  if (rows.length > 0) {
-    return { success: true, data: rows[0] };
-  }
-  return { success: false };
-};
-
-export const createLoanInDatabase = async (
-  username,
-  startDate,
-  endDate,
-  itemIds
-) => {
-  if (!username)
-    return { success: false, code: "BAD_REQUEST", message: "Missing username" };
-  if (!Array.isArray(itemIds) || itemIds.length === 0)
-    return {
-      success: false,
-      code: "BAD_REQUEST",
-      message: "No items provided",
-    };
-  if (!startDate || !endDate)
-    return { success: false, code: "BAD_REQUEST", message: "Missing dates" };
-
-  const start = new Date(startDate);
-  const end = new Date(endDate);
-  if (
-    !(start instanceof Date) ||
-    isNaN(start.getTime()) ||
-    !(end instanceof Date) ||
-    isNaN(end.getTime()) ||
-    start >= end
-  ) {
-    return {
-      success: false,
-      code: "BAD_REQUEST",
-      message: "Invalid date range",
-    };
-  }
-
-  const conn = await pool.getConnection();
-  try {
-    await conn.beginTransaction();
-
-    // Ensure all items exist and collect names
-    const [itemsRows] = await conn.query(
-      "SELECT id, item_name FROM items WHERE id IN (?)",
-      [itemIds]
-    );
-    if (!itemsRows || itemsRows.length !== itemIds.length) {
-      await conn.rollback();
-      return {
-        success: false,
-        code: "BAD_REQUEST",
-        message: "One or more items not found",
-      };
-    }
-    const itemNames = itemIds
-      .map(
-        (id) => itemsRows.find((r) => Number(r.id) === Number(id))?.item_name
-      )
-      .filter(Boolean);
-
-    // Check availability (no overlap with existing loans)
-    const [confRows] = await conn.query(
-      `
-      SELECT COUNT(*) AS conflicts
-      FROM loans l
-      JOIN JSON_TABLE(l.loaned_items_id, '$[*]' COLUMNS (item_id INT PATH '$')) jt
-        ON TRUE
-      WHERE jt.item_id IN (?)
-        AND l.deleted = 0
-        AND l.start_date < ?
-        AND COALESCE(l.returned_date, l.end_date) > ?
-      `,
-      [itemIds, end, start]
-    );
-    if (confRows?.[0]?.conflicts > 0) {
-      await conn.rollback();
-      return {
-        success: false,
-        code: "CONFLICT",
-        message: "One or more items are not available in the selected period",
-      };
-    }
-
-    // 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",
-        [candidate]
-      );
-      if (exists.length === 0) {
-        loanCode = candidate;
-        break;
-      }
-    }
-    if (!loanCode) {
-      await conn.rollback();
-      return {
-        success: false,
-        code: "SERVER_ERROR",
-        message: "Failed to generate unique loan code",
-      };
-    }
-
-    // Insert loan
-    const [insertRes] = await conn.query(
-      `
-      INSERT INTO loans (username, loan_code, start_date, end_date, loaned_items_id, loaned_items_name)
-      VALUES (?, ?, ?, ?, CAST(? AS JSON), CAST(? AS JSON))
-      `,
-      [
-        username,
-        loanCode,
-        // Use DATETIME/TIMESTAMP friendly format
-        new Date(start).toISOString().slice(0, 19).replace("T", " "),
-        new Date(end).toISOString().slice(0, 19).replace("T", " "),
-        JSON.stringify(itemIds.map((n) => Number(n))),
-        JSON.stringify(itemNames),
-      ]
-    );
-
-    await conn.commit();
-    return {
-      success: true,
-      data: {
-        id: insertRes.insertId,
-        loan_code: loanCode,
-        username,
-        start_date: start,
-        end_date: end,
-        items: itemIds,
-        item_names: itemNames,
-      },
-    };
-  } catch (err) {
-    await conn.rollback();
-    console.error("createLoanInDatabase error:", err);
-    return {
-      success: false,
-      code: "SERVER_ERROR",
-      message: "Failed to create loan",
-    };
-  } finally {
-    conn.release();
-  }
-};
-
-// These functions are only temporary, and will be deleted when the full bin is set up.
-export const onTake = async (loanId) => {
-  const [items] = await pool.query(
-    "SELECT loaned_items_id FROM loans WHERE id = ?",
-    [loanId]
-  );
-
-  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 [setItemStates] = await pool.query(
-    "UPDATE items SET inSafe = 0 WHERE id IN (?)",
-    [itemIds]
-  );
-
-  const [result] = await pool.query(
-    "UPDATE loans SET take_date = NOW() WHERE id = ?",
-    [loanId]
-  );
-
-  if (result.affectedRows > 0 && setItemStates.affectedRows > 0) {
-    return { success: true };
-  }
-  return { success: false };
-};
-
-export const onReturn = async (loanId) => {
-  const [items] = await pool.query(
-    "SELECT loaned_items_id FROM loans WHERE id = ?",
-    [loanId]
-  );
-
-  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 [setItemStates] = await pool.query(
-    "UPDATE items SET inSafe = 1 WHERE id IN (?)",
-    [itemIds]
-  );
-
-  const [result] = await pool.query(
-    "UPDATE loans SET returned_date = NOW() WHERE id = ?",
-    [loanId]
-  );
-
-  if (result.affectedRows > 0 && setItemStates.affectedRows > 0) {
-    return { success: true };
-  }
-  return { success: false };
-};
-// Temporary functions end here.
-
-export const loginAdmin = async (username, password) => {
-  const [result] = await pool.query(
-    "SELECT * FROM admins WHERE username = ? AND password = ?",
-    [username, password]
-  );
-  if (result.length > 0) return { success: true, data: result[0] };
-  return { success: false };
-};
-
-export const getAllUsers = async () => {
-  const [result] = await pool.query(
-    "SELECT id, username, role, entry_created_at FROM users"
-  );
-  if (result.length > 0) return { success: true, data: result };
-  return { success: false };
-};
-
-export const deleteUserID = async (userId) => {
-  const [result] = await pool.query("DELETE FROM users WHERE id = ?", [userId]);
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const handleEdit = async (userId, username, role) => {
-  const [result] = await pool.query(
-    "UPDATE users SET username = ?, role = ? WHERE id = ?",
-    [username, role, userId]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const createUser = async (username, role, password) => {
-  const [result] = await pool.query(
-    "INSERT INTO users (username, role, password) VALUES (?, ?, ?)",
-    [username, role, password]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const getAllLoans = async () => {
-  const [result] = await pool.query("SELECT * FROM loans");
-  if (result.length > 0) return { success: true, data: result };
-  return { success: false };
-};
-
-export const getAllItems = async () => {
-  const [result] = await pool.query("SELECT * FROM items");
-  if (result.length > 0) return { success: true, data: result };
-  return { success: false };
-};
-
-export const deleteItemID = async (itemId) => {
-  const [result] = await pool.query("DELETE FROM items WHERE id = ?", [itemId]);
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const createItem = async (item_name, can_borrow_role) => {
-  const [result] = await pool.query(
-    "INSERT INTO items (item_name, can_borrow_role) VALUES (?, ?)",
-    [item_name, can_borrow_role]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const changeUserPassword = async (username, newPassword) => {
-  const [result] = await pool.query(
-    "UPDATE users SET password = ? WHERE username = ?",
-    [newPassword, username]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const changeUserPasswordFRONTEND = async (
-  username,
-  oldPassword,
-  newPassword
-) => {
-  const [result] = await pool.query(
-    "UPDATE users SET password = ? WHERE username = ? AND password = ?",
-    [newPassword, username, oldPassword]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const updateItemByID = async (itemId, item_name, can_borrow_role) => {
-  const [result] = await pool.query(
-    "UPDATE items SET item_name = ?, can_borrow_role = ? WHERE id = ?",
-    [item_name, can_borrow_role, itemId]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const getAllLoansV2 = async () => {
-  const [rows] = await pool.query(
-    "SELECT id, username, start_date, end_date, loaned_items_name, returned_date, take_date FROM loans"
-  );
-  if (rows.length > 0) {
-    return { success: true, data: rows };
-  }
-  return { success: false };
-};
-
-export const getAllApiKeys = async () => {
-  const [rows] = await pool.query("SELECT * FROM apiKeys");
-  if (rows.length > 0) {
-    return { success: true, data: rows };
-  }
-  return { success: false };
-};
-
-export const createAPIentry = async (apiKey, user) => {
-  const [result] = await pool.query(
-    "INSERT INTO apiKeys (apiKey, user) VALUES (?, ?)",
-    [apiKey, user]
-  );
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const deleteAPKey = async (apiKeyId) => {
-  const [result] = await pool.query("DELETE FROM apiKeys WHERE id = ?", [
-    apiKeyId,
-  ]);
-  if (result.affectedRows > 0) return { success: true };
-  return { success: false };
-};
-
-export const getAPIkey = async () => {
-  const [rows] = await pool.query("SELECT apiKey FROM apiKeys");
-  if (rows.length > 0) {
-    return { success: true, data: rows };
-  }
-  return { success: false };
-};
--- a/backend/services/tokenService.js
+++ b/backend/services/tokenService.js
@@ -1,25 +0,0 @@
-import { SignJWT, jwtVerify } from "jose";
-import env from "dotenv";
-env.config();
-const secret = new TextEncoder().encode(process.env.SECRET_KEY);
-
-export async function generateToken(payload) {
-  const newToken = await new SignJWT(payload)
-    .setProtectedHeader({ alg: "HS256" })
-    .setIssuedAt()
-    .setExpirationTime("2h") // Token valid for 2 hours
-    .sign(secret);
-  return newToken;
-}
-
-export async function authenticate(req, res, next) {
-  const authHeader = req.headers["authorization"];
-  const token = authHeader && authHeader.split(" ")[1]; // Bearer <token>
-
-  if (token == null) return res.sendStatus(401); // No token present
-
-  const { payload } = await jwtVerify(token, secret);
-  req.user = payload;
-
-  next();
-}
--- a/backend/views/index.ejs
+++ b/backend/views/index.ejs
@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-    <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>backend</title>
-</head>
-<body>
-    backend
-</body>
-</html>
--- a/backendV2/info.json
+++ b/backendV2/info.json
@@ -1,11 +1,11 @@
 {
    "backend-info": {
-        "version": "v2.0"
+        "version": "v2.0.1 (dev)"
    },
    "frontend-info": {
-        "version": "v2.0"
+        "version": "v2.0 (dev)"
    },
    "admin-panel-info": {
-        "version": "v1.2"
+        "version": "v1.3 (dev)"
    }
 }
--- a/backendV2/routes/admin/database/itemDataMgmt.database.js
+++ b/backendV2/routes/admin/database/itemDataMgmt.database.js
@@ -32,10 +32,22 @@ export const createItem = async (item_name, can_borrow_role, lockerNumber) => {
  return { success: false };
 };

-export const editItemById = async (itemId, item_name, can_borrow_role) => {
+export const editItemById = async (
+  itemId,
+  item_name,
+  can_borrow_role,
+  safe_nr,
+  door_key
+) => {
+  let newSafeNr;
+  if (safe_nr === null || safe_nr === "") {
+    newSafeNr = null;
+  } else {
+    newSafeNr = safe_nr;
+  }
  const [result] = await pool.query(
-    "UPDATE items SET item_name = ?, can_borrow_role = ?, entry_updated_at = NOW() WHERE id = ?",
-    [item_name, can_borrow_role, itemId]
+    "UPDATE items SET item_name = ?, can_borrow_role = ?, safe_nr = ?, door_key = ?, entry_updated_at = NOW() WHERE id = ?",
+    [item_name, can_borrow_role, newSafeNr, door_key, itemId]
  );
  if (result.affectedRows > 0) return { success: true };
  return { success: false };
--- a/backendV2/routes/admin/itemDataMgmt.route.js
+++ b/backendV2/routes/admin/itemDataMgmt.route.js
@@ -41,11 +41,14 @@ router.post("/create-item", authenticateAdmin, async (req, res) => {

 router.post("/edit-item/:id", authenticateAdmin, async (req, res) => {
  const itemId = req.params.id;
-  const { item_name, can_borrow_role } = req.body;
+  const { item_name, can_borrow_role, safe_nr, door_key } = req.body;
+
  const result = await editItemById(
    itemId,
    item_name,
-    can_borrow_role
+    can_borrow_role,
+    safe_nr,
+    door_key
  );
  if (result.success) {
    return res.status(200).json({ message: "Item edited successfully" });
--- a/backendV2/routes/api/api.database.js
+++ b/backendV2/routes/api/api.database.js
@@ -114,3 +114,22 @@ export const getAllLoansV2 = async () => {
  }
  return { success: false };
 };
+
+export const openDoor = async (doorKey) => {
+  const [result] = await pool.query(
+    "SELECT safe_nr, id FROM items WHERE door_key = ?;",
+    [doorKey]
+  );
+  if (result.length > 0) {
+    const [changeItemSate] = await pool.query(
+      "UPDATE items SET in_safe = NOT in_safe WHERE id = ?",
+      [result[0].id]
+    );
+    if (changeItemSate.affectedRows > 0) {
+      return { success: true, data: result[0] };
+    } else {
+      return { success: false };
+    }
+  }
+  return { success: false };
+};
--- a/backendV2/routes/api/api.route.js
+++ b/backendV2/routes/api/api.route.js
@@ -10,6 +10,7 @@ import {
  setTakeDateV2,
  setReturnDateV2,
  getLoanByCodeV2,
+  openDoor,
 } from "./api.database.js";

 // Route for API to get all items from the database
@@ -79,4 +80,16 @@ router.post(
  }
 );

+// Route for API to open a door
+router.get("/open-door/:key/:doorKey", authenticate, async (req, res) => {
+  const doorKey = req.params.doorKey;
+
+  const result = await openDoor(doorKey);
+  if (result.success) {
+    res.status(200).json({ data: result.data });
+  } else {
+    res.status(500).json({ message: "Failed to open door" });
+  }
+});
+
 export default router;
--- a/backendV2/routes/app/database/loansMgmt.database.js
+++ b/backendV2/routes/app/database/loansMgmt.database.js
@@ -69,12 +69,20 @@ export const createLoanInDatabase = async (
      )
      .filter(Boolean);

-    // Build lockers array (unique, only 2-digit strings)
+    // Build lockers array (unique, only 2-digit numbers from safe_nr)
    const lockers = [
      ...new Set(
        itemsRows
          .map((r) => r.safe_nr)
-          .filter((sn) => typeof sn === "string" && /^\d{2}$/.test(sn))
+          .filter(
+            (sn) =>
+              sn !== null &&
+              sn !== undefined &&
+              Number.isInteger(Number(sn)) &&
+              Number(sn) >= 0 &&
+              Number(sn) <= 99
+          )
+          .map((sn) => Number(sn))
      ),
    ];

--- a/backendV2/routes/app/services/mailer.js
+++ b/backendV2/routes/app/services/mailer.js
@@ -2,6 +2,38 @@ 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 =
@@ -142,7 +174,8 @@ export function sendMailLoan(user, items, startDate, endDate, createdDate) {
      html: buildLoanEmail({ user, items, startDate, endDate, createdDate }),
    });

-    console.log("Message sent:", info.messageId);
+    // debugging logs
+    // console.log("Message sent:", info.messageId);
  })();
-  console.log("sendMailLoan called");
+  // console.log("sendMailLoan called");
 }
--- a/backendV2/scheme.xlsx
+++ b/backendV2/scheme.xlsx
--- a/backendV2/schemeV2.sql
+++ b/backendV2/schemeV2.sql
@@ -37,13 +37,13 @@ CREATE TABLE items (
  item_name varchar(255) NOT NULL UNIQUE,
  can_borrow_role INT NOT NULL,
  in_safe bool NOT NULL DEFAULT true,
-  safe_nr CHAR(2) DEFAULT NULL UNIQUE,
+  safe_nr INT DEFAULT NULL UNIQUE,
+  door_key INT DEFAULT NULL UNIQUE,
  entry_created_at timestamp NULL DEFAULT CURRENT_TIMESTAMP,
  entry_updated_at timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  last_borrowed_person varchar(255) DEFAULT NULL,
  currently_borrowing varchar(255) DEFAULT NULL,
-  PRIMARY KEY (id),
-  CHECK (safe_nr REGEXP '^[0-9]{2}$' OR safe_nr IS NULL)
+  PRIMARY KEY (id)
 ) ENGINE=InnoDB;

 CREATE TABLE apiKeys (
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,43 +1,23 @@
 services:
-  usr-frontend_v2:
-    container_name: borrow_system-usr-frontend
-    build: ./FrontendV2
-    ports:
-      - "8101:80"
-    restart: unless-stopped
+  #  usr-frontend_v2:
+  #    container_name: borrow_system-usr-frontend
+  #    build: ./FrontendV2
+  #    ports:
+  #      - "8001:80"
+  #    restart: unless-stopped

-  admin-frontend:
-    container_name: borrow_system-admin-frontend
-    build: ./admin
-    ports:
-      - "8103:80"
-    restart: unless-stopped
-
-  #backend:
-  #  container_name: borrow_system-backend
-  #  build: ./backend
-  #  ports:
-  #    - "8002:8002"
-  #  environment:
-  #    NODE_ENV: production
-  #    DB_HOST: mysql
-  #    DB_USER: root
-  #    DB_PASSWORD: ${DB_PASSWORD}
-  #    DB_NAME: borrow_system
-  #  depends_on:
-  #    - mysql
-  #  restart: unless-stopped
-  #  healthcheck:
-  #    test: ["CMD", "wget", "-qO-", "http://localhost:8002/server-info"]
-  #    interval: 30s
-  #    timeout: 5s
-  #    retries: 3
+  #  admin-frontend:
+  #    container_name: borrow_system-admin-frontend
+  #    build: ./admin
+  #    ports:
+  #      - "8003:80"
+  #    restart: unless-stopped

  backend_v2:
    container_name: borrow_system-backend_v2
    build: ./backendV2
    ports:
-      - "8102:8102"
+      - "8004:8004"
    environment:
      NODE_ENV: production
      DB_HOST: mysql_v2
@@ -48,20 +28,6 @@ services:
      - mysql_v2
    restart: unless-stopped

-  # mysql:
-  #   container_name: borrow_system-mysql
-  #   image: mysql:8.0
-  #   restart: unless-stopped
-  #   environment:
-  #     MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}
-  #     MYSQL_DATABASE: borrow_system
-  #     TZ: Europe/Berlin
-  #   volumes:
-  #     - mysql-data:/var/lib/mysql
-  #     - ./mysql-timezone.cnf:/etc/mysql/conf.d/timezone.cnf:ro
-  #   ports:
-  #     - "3309:3306"
-
  mysql_v2:
    container_name: borrow_system-mysql-v2
    image: mysql:8.0
--- a/next-js/.gitignore
+++ b/next-js/.gitignore
@@ -0,0 +1,41 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts
--- a/next-js/README.md
+++ b/next-js/README.md
@@ -0,0 +1,36 @@
+This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.
--- a/next-js/app/favicon.ico
+++ b/next-js/app/favicon.ico
--- a/next-js/app/globals.css
+++ b/next-js/app/globals.css
@@ -0,0 +1,26 @@
+@import "tailwindcss";
+
+:root {
+  --background: #ffffff;
+  --foreground: #171717;
+}
+
+@theme inline {
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --font-sans: var(--font-geist-sans);
+  --font-mono: var(--font-geist-mono);
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --background: #0a0a0a;
+    --foreground: #ededed;
+  }
+}
+
+body {
+  background: var(--background);
+  color: var(--foreground);
+  font-family: Arial, Helvetica, sans-serif;
+}
--- a/next-js/app/layout.tsx
+++ b/next-js/app/layout.tsx
@@ -0,0 +1,34 @@
+import type { Metadata } from "next";
+import { Geist, Geist_Mono } from "next/font/google";
+import "./globals.css";
+
+const geistSans = Geist({
+  variable: "--font-geist-sans",
+  subsets: ["latin"],
+});
+
+const geistMono = Geist_Mono({
+  variable: "--font-geist-mono",
+  subsets: ["latin"],
+});
+
+export const metadata: Metadata = {
+  title: "Create Next App",
+  description: "Generated by create next app",
+};
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="en">
+      <body
+        className={`${geistSans.variable} ${geistMono.variable} antialiased`}
+      >
+        {children}
+      </body>
+    </html>
+  );
+}
--- a/next-js/app/page.tsx
+++ b/next-js/app/page.tsx
@@ -0,0 +1,65 @@
+import Image from "next/image";
+
+export default function Home() {
+  return (
+    <div className="flex min-h-screen items-center justify-center bg-zinc-50 font-sans dark:bg-black">
+      <main className="flex min-h-screen w-full max-w-3xl flex-col items-center justify-between py-32 px-16 bg-white dark:bg-black sm:items-start">
+        <Image
+          className="dark:invert"
+          src="/next.svg"
+          alt="Next.js logo"
+          width={100}
+          height={20}
+          priority
+        />
+        <div className="flex flex-col items-center gap-6 text-center sm:items-start sm:text-left">
+          <h1 className="max-w-xs text-3xl font-semibold leading-10 tracking-tight text-black dark:text-zinc-50">
+            To get started, edit the page.tsx file.
+          </h1>
+          <p className="max-w-md text-lg leading-8 text-zinc-600 dark:text-zinc-400">
+            Looking for a starting point or more instructions? Head over to{" "}
+            <a
+              href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+              className="font-medium text-zinc-950 dark:text-zinc-50"
+            >
+              Templates
+            </a>{" "}
+            or the{" "}
+            <a
+              href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+              className="font-medium text-zinc-950 dark:text-zinc-50"
+            >
+              Learning
+            </a>{" "}
+            center.
+          </p>
+        </div>
+        <div className="flex flex-col gap-4 text-base font-medium sm:flex-row">
+          <a
+            className="flex h-12 w-full items-center justify-center gap-2 rounded-full bg-foreground px-5 text-background transition-colors hover:bg-[#383838] dark:hover:bg-[#ccc] md:w-[158px]"
+            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+            target="_blank"
+            rel="noopener noreferrer"
+          >
+            <Image
+              className="dark:invert"
+              src="/vercel.svg"
+              alt="Vercel logomark"
+              width={16}
+              height={16}
+            />
+            Deploy Now
+          </a>
+          <a
+            className="flex h-12 w-full items-center justify-center rounded-full border border-solid px-5 transition-colors hover:border-transparent dark:border-white/[.145] dark:hover:bg-[#1a1a1a] md:w-[158px]"
+            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
+            target="_blank"
+            rel="noopener noreferrer"
+          >
+            Documentation
+          </a>
+        </div>
+      </main>
+    </div>
+  );
+}
--- a/next-js/eslint.config.mjs
+++ b/next-js/eslint.config.mjs
@@ -0,0 +1,18 @@
+import { defineConfig, globalIgnores } from "eslint/config";
+import nextVitals from "eslint-config-next/core-web-vitals";
+import nextTs from "eslint-config-next/typescript";
+
+const eslintConfig = defineConfig([
+  ...nextVitals,
+  ...nextTs,
+  // Override default ignores of eslint-config-next.
+  globalIgnores([
+    // Default ignores of eslint-config-next:
+    ".next/**",
+    "out/**",
+    "build/**",
+    "next-env.d.ts",
+  ]),
+]);
+
+export default eslintConfig;
--- a/next-js/next.config.ts
+++ b/next-js/next.config.ts
@@ -0,0 +1,8 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+  reactCompiler: true,
+};
+
+export default nextConfig;
--- a/next-js/package-lock.json
+++ b/next-js/package-lock.json
--- a/next-js/package.json
+++ b/next-js/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "next-js",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "eslint"
+  },
+  "dependencies": {
+    "next": "16.0.5",
+    "react": "19.2.0",
+    "react-dom": "19.2.0"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4",
+    "@types/node": "^20",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "babel-plugin-react-compiler": "1.0.0",
+    "eslint": "^9",
+    "eslint-config-next": "16.0.5",
+    "tailwindcss": "^4",
+    "typescript": "^5"
+  }
+}
--- a/next-js/postcss.config.mjs
+++ b/next-js/postcss.config.mjs
@@ -0,0 +1,7 @@
+const config = {
+  plugins: {
+    "@tailwindcss/postcss": {},
+  },
+};
+
+export default config;
--- a/next-js/public/file.svg
+++ b/next-js/public/file.svg
@@ -0,0 +1 @@
+<svg fill="none" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><path d="M14.5 13.5V5.41a1 1 0 0 0-.3-.7L9.8.29A1 1 0 0 0 9.08 0H1.5v13.5A2.5 2.5 0 0 0 4 16h8a2.5 2.5 0 0 0 2.5-2.5m-1.5 0v-7H8v-5H3v12a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1M9.5 5V2.12L12.38 5zM5.13 5h-.62v1.25h2.12V5zm-.62 3h7.12v1.25H4.5zm.62 3h-.62v1.25h7.12V11z" clip-rule="evenodd" fill="#666" fill-rule="evenodd"/></svg>
--- a/next-js/public/globe.svg
+++ b/next-js/public/globe.svg
@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><g clip-path="url(#a)"><path fill-rule="evenodd" clip-rule="evenodd" d="M10.27 14.1a6.5 6.5 0 0 0 3.67-3.45q-1.24.21-2.7.34-.31 1.83-.97 3.1M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16m.48-1.52a7 7 0 0 1-.96 0H7.5a4 4 0 0 1-.84-1.32q-.38-.89-.63-2.08a40 40 0 0 0 3.92 0q-.25 1.2-.63 2.08a4 4 0 0 1-.84 1.31zm2.94-4.76q1.66-.15 2.95-.43a7 7 0 0 0 0-2.58q-1.3-.27-2.95-.43a18 18 0 0 1 0 3.44m-1.27-3.54a17 17 0 0 1 0 3.64 39 39 0 0 1-4.3 0 17 17 0 0 1 0-3.64 39 39 0 0 1 4.3 0m1.1-1.17q1.45.13 2.69.34a6.5 6.5 0 0 0-3.67-3.44q.65 1.26.98 3.1M8.48 1.5l.01.02q.41.37.84 1.31.38.89.63 2.08a40 40 0 0 0-3.92 0q.25-1.2.63-2.08a4 4 0 0 1 .85-1.32 7 7 0 0 1 .96 0m-2.75.4a6.5 6.5 0 0 0-3.67 3.44 29 29 0 0 1 2.7-.34q.31-1.83.97-3.1M4.58 6.28q-1.66.16-2.95.43a7 7 0 0 0 0 2.58q1.3.27 2.95.43a18 18 0 0 1 0-3.44m.17 4.71q-1.45-.12-2.69-.34a6.5 6.5 0 0 0 3.67 3.44q-.65-1.27-.98-3.1" fill="#666"/></g><defs><clipPath id="a"><path fill="#fff" d="M0 0h16v16H0z"/></clipPath></defs></svg>
--- a/next-js/public/next.svg
+++ b/next-js/public/next.svg
@@ -0,0 +1 @@
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--- a/next-js/public/vercel.svg
+++ b/next-js/public/vercel.svg
@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1155 1000"><path d="m577.3 0 577.4 1000H0z" fill="#fff"/></svg>
--- a/next-js/public/window.svg
+++ b/next-js/public/window.svg
@@ -0,0 +1 @@
+<svg fill="none" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" clip-rule="evenodd" d="M1.5 2.5h13v10a1 1 0 0 1-1 1h-11a1 1 0 0 1-1-1zM0 1h16v11.5a2.5 2.5 0 0 1-2.5 2.5h-11A2.5 2.5 0 0 1 0 12.5zm3.75 4.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5M7 4.75a.75.75 0 1 1-1.5 0 .75.75 0 0 1 1.5 0m1.75.75a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5" fill="#666"/></svg>
--- a/next-js/tsconfig.json
+++ b/next-js/tsconfig.json
@@ -0,0 +1,34 @@
+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./*"]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts",
+    "**/*.mts"
+  ],
+  "exclude": ["node_modules"]
+}
Author	SHA1	Message	Date
Theis Gaedigk	233778a8ad	added next js project/folder	2025-11-29 14:54:15 +01:00
Theis Gaedigk	31960d1ff8	fixed footer message	2025-11-25 18:02:05 +01:00
Theis Gaedigk	3bf5560834	edited docs	2025-11-25 17:09:22 +01:00
Theis Gaedigk	4c60fea4c4	fixed bug: mailer did not send email	2025-11-25 16:57:20 +01:00
Theis Gaedigk	0577a63205	deleted xls	2025-11-25 16:15:08 +01:00
Theis Gaedigk	fd2ccaa747	feat: add door_key field to items and update related logic in forms and database	2025-11-24 17:12:37 +01:00
Theis Gaedigk	df6b5eac59	fixed bug and edited version	2025-11-24 16:55:27 +01:00
Theis Gaedigk	d64489aed4	edited scheme but still not working	2025-11-24 16:05:56 +01:00
Theis Gaedigk	cb6b5858e5	refactor: rename lockerNumber to safe_nr and update related logic	2025-11-23 21:52:12 +01:00
Theis Gaedigk	85e6d7fe00	fixed bugs	2025-11-23 21:39:18 +01:00
Theis Gaedigk	4b9f55268c	updated scheme	2025-11-23 21:25:08 +01:00
Theis Gaedigk	90ca266793	changed docker config	2025-11-23 20:26:49 +01:00
Theis Gaedigk	b9d67cd147	deleted old backend	2025-11-23 20:20:23 +01:00
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