refactored loan code creation function

Co-authored-by: Copilot <copilot@github.com>

.gitmodules

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

FrontendV2/package.json

@@ -12,6 +12,7 @@
   "dependencies": {
     "@chakra-ui/react": "^3.28.0",
     "@emotion/react": "^11.14.0",
+    "@lottiefiles/dotlottie-react": "^0.19.0",
     "@tailwindcss/vite": "^4.1.11",
     "@tanstack/react-query": "^5.90.5",
     "i18next": "^25.6.0",

FrontendV2/src/components/DeactivatedServices.tsx

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

FrontendV2/src/components/Header.tsx

@@ -1,6 +1,7 @@
 import {
   Button,
   Flex,
+  Image,
   Heading,
   Stack,
   Text,
@@ -68,6 +69,7 @@ export const Header = () => {
       className="mb-6"
       position="relative"
       pr={{ base: 10, md: 0 }} // Platz für den Mobile-Button rechts
+      marginBottom={1}
     >
       {/* Mobile: Drei-Punkte-Button, vertikal zentriert im Header */}
       <Box
@@ -190,6 +192,13 @@ export const Header = () => {
         <Stack gap={1}>
           {/* Titelzeile ohne Mobile-Menu (wurde nach oben verlegt) */}
           <Flex align="center" justify="space-between" gap={2}>
+            <Image
+              src="/icon_borrow-system-frontend_dark.png"
+              alt="borrow-system logo"
+              boxSize="10"
+              objectFit="contain"
+              flexShrink={0}
+            />
             <Heading
               size="2xl"
               className="tracking-tight text-slate-900 dark:text-slate-100"

FrontendV2/src/components/UserDialogue.tsx

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

FrontendV2/src/components/dotLottie.tsx

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

FrontendV2/src/pages/ContactPage.tsx

@@ -5,6 +5,8 @@ import {
   Alert,
   Container,
   Text,
+  VStack,
+  Spinner,
 } from "@chakra-ui/react";
 import { useTranslation } from "react-i18next";
 import { useState } from "react";
@@ -21,9 +23,21 @@ interface Alert {
 export const ContactPage = () => {
   const { t } = useTranslation();
   const [message, setMessage] = useState("");
+  const [isSending, setIsSending] = useState(false);
   const [alert, setAlert] = useState<Alert | null>(null);
 
   const sendMessage = async () => {
+    setIsSending(true);
+    if (message.trim() === "") {
+      setAlert({
+        type: "error",
+        headline: t("contactPage_messageErrorHeadline"),
+        text: t("contactPage_messageErrorText2"),
+      });
+      setIsSending(false);
+      return;
+    }
+
     // Logic to send the message
     const result = await fetch(`${API_BASE}/api/users/contact`, {
       method: "POST",
@@ -42,6 +56,12 @@ export const ContactPage = () => {
         text: t("contactPage_successText"),
       });
       setMessage("");
+    } else if (result.status === 503) {
+      setAlert({
+        type: "error",
+        headline: t("serviceDeactivatedHeadline"),
+        text: t("contactPage_serviceDeactivatedText"),
+      });
     } else {
       setAlert({
         type: "error",
@@ -49,6 +69,7 @@ export const ContactPage = () => {
         text: t("contactPage_errorText"),
       });
     }
+    setIsSending(false);
   };
 
   return (
@@ -78,6 +99,12 @@ export const ContactPage = () => {
           </Alert.Content>
         </Alert.Root>
       )}
+      {isSending && (
+        <VStack colorPalette="teal">
+          <Spinner color="colorPalette.600" />
+          <Text color="colorPalette.600">{t("loading")}</Text>
+        </VStack>
+      )}
       <Button onClick={sendMessage}>{t("contactPage_sendButton")}</Button>
     </Container>
   );

FrontendV2/src/pages/HomePage.tsx

@@ -18,6 +18,8 @@ import { borrowAbleItemsAtom } from "@/states/Atoms";
 import { createLoan } from "@/utils/Fetcher";
 import { Header } from "@/components/Header";
 import { useTranslation } from "react-i18next";
+import { approvalAnimation } from "@/components/dotLottie";
+import { DeactivatedServices } from "@/components/DeactivatedServices";
 
 export interface User {
   username: string;
@@ -27,6 +29,8 @@ export interface User {
 export const HomePage = () => {
   const { t } = useTranslation();
 
+  const [showAnimation, setShowAnimation] = useState(false);
+
   const [borrowableItems, setBorrowableItems] = useAtom(borrowAbleItemsAtom);
   const [startDate, setStartDate] = useState("");
   const [endDate, setEndDate] = useState("");
@@ -46,13 +50,29 @@ export const HomePage = () => {
     setSelectedItems((prevSelected) =>
       prevSelected.includes(itemId)
         ? prevSelected.filter((id) => id !== itemId)
-        : [...prevSelected, itemId]
+        : [...prevSelected, itemId],
     );
   };
 
+  const showApprovalAnimation = (seconds: number) => {
+    const milliseconds = seconds * 1000;
+
+    setShowAnimation(true);
+    window.setTimeout(() => {
+      setShowAnimation(false);
+    }, milliseconds);
+  };
+
   return (
+    <>
+      {showAnimation && (
+        <div className="fixed inset-0 z-9999 flex items-center justify-center pointer-events-none">
+          <div>{approvalAnimation()}</div>
+        </div>
+      )}
       <Container className="px-6 sm:px-8 pt-10">
         <Header />
+        <DeactivatedServices />
         {isMsg && (
           <MyAlert
             status={msgStatus}
@@ -113,12 +133,6 @@ export const HomePage = () => {
           >
             {t("get-borrowable-items")}
           </Button>
-        {isLoadingA && (
-          <VStack colorPalette="teal">
-            <Spinner color="colorPalette.600" />
-            <Text color="colorPalette.600">{t("loading")}</Text>
-          </VStack>
-        )}
           {borrowableItems.length > 0 && (
             <Table.ScrollArea borderWidth="1px" rounded="md">
               <Table.Root size="sm" stickyHeader>
@@ -158,7 +172,7 @@ export const HomePage = () => {
                           maxLength={MAX_CHARACTERS}
                           onChange={(e) => {
                             setNote(
-                            e.currentTarget.value.slice(0, MAX_CHARACTERS)
+                              e.currentTarget.value.slice(0, MAX_CHARACTERS),
                             );
                           }}
                         />
@@ -171,30 +185,40 @@ export const HomePage = () => {
           )}
           {selectedItems.length >= 1 && (
             <Button
-            onClick={() =>
+              onClick={() => {
+                setIsLoadingA(true);
                 createLoan(selectedItems, startDate, endDate, note).then(
                   (response) => {
+                    setIsLoadingA(false);
                     if (response.status === "error") {
                       setMsgStatus("error");
                       setMsgTitle(response.title || t("error"));
                       setMsgDescription(
-                      response.description || t("unknown-error")
+                        response.description || t("unknown-error"),
                       );
                       setIsMsg(true);
                       return;
                     }
+                    showApprovalAnimation(3);
                     setMsgStatus("success");
                     setMsgTitle(t("success"));
                     setMsgDescription(t("loan-success"));
                     setIsMsg(true);
-                }
-              )
-            }
+                  },
+                );
+              }}
             >
               {t("create-loan")}
             </Button>
           )}
+          {isLoadingA && (
+            <VStack colorPalette="teal">
+              <Spinner color="colorPalette.600" />
+              <Text color="colorPalette.600">{t("loading")}</Text>
+            </VStack>
+          )}
         </Stack>
       </Container>
+    </>
   );
 };

FrontendV2/src/pages/Landingpage.tsx

@@ -79,6 +79,16 @@ const Landingpage: React.FC = () => {
             Authorization: `Bearer ${Cookies.get("token")}`,
           },
         });
+        if (loanRes.status === 503) {
+          setError(
+            "error",
+            t("serviceDeactivatedHeadline"),
+            t("loan_page_serviceDeactivatedText"),
+          );
+          setIsLoading(false);
+          return;
+        }
+
         const loanData = await loanRes.json();
         if (Array.isArray(loanData)) {
           setLoans(loanData);

FrontendV2/src/pages/LoginPage.tsx

@@ -4,26 +4,47 @@ import { Button, Card, Field, Input, Stack } from "@chakra-ui/react";
 import { setIsLoggedInAtom, triggerLogoutAtom } from "@/states/Atoms";
 import { useAtom } from "jotai";
 import Cookies from "js-cookie";
-import { Navigate, useNavigate, useLocation } from "react-router-dom";
+import { useNavigate, useLocation } from "react-router-dom";
 import { PasswordInput } from "@/components/ui/password-input";
 import { useTranslation } from "react-i18next";
 import { API_BASE } from "@/config/api.config";
+import { unlockAnimation } from "@/components/dotLottie";
+import { logoutAnimation } from "@/components/dotLottie";
 
 export const LoginPage = () => {
   const { t } = useTranslation();
 
   const [isLoggedIn, setIsLoggedIn] = useAtom(setIsLoggedInAtom);
   const [triggerLogout, setTriggerLogout] = useAtom(triggerLogoutAtom);
+  const [showAnimation, setShowAnimation] = useState(false);
+  const [showLogout, setShowLogout] = useState(false);
   const navigate = useNavigate();
   const location = useLocation();
   const from = location.state?.from?.pathname || "/";
 
   useEffect(() => {
-    if (isLoggedIn) {
-      navigate(from, { replace: true });
-      window.location.reload(); // if deleted, the user context is not updated in time
+    if (triggerLogout) {
+      setShowLogout(true);
+      window.setTimeout(() => {
+        setShowLogout(false);
+      }, 4500);
     }
-  }, [isLoggedIn, navigate, from]);
+
+    if (!isLoggedIn) return;
+
+    // Existing sessions should redirect immediately, fresh logins wait for animation.
+    if (!showAnimation) {
+      navigate(from, { replace: true });
+      return;
+    }
+
+    const timeoutId = window.setTimeout(() => {
+      navigate(from, { replace: true });
+      window.location.reload(); // keeps user context in sync after login
+    }, 3000);
+
+    return () => window.clearTimeout(timeoutId);
+  }, [isLoggedIn, showAnimation, navigate, from]);
 
   const loginFnc = async (username: string, password: string) => {
     const response = await fetch(`${API_BASE}/api/users/login`, {
@@ -42,6 +63,8 @@ export const LoginPage = () => {
       };
     }
 
+    setShowAnimation(true);
+
     Cookies.set("token", data.token);
     setIsLoggedIn(true);
     return { success: true };
@@ -62,14 +85,22 @@ export const LoginPage = () => {
       return;
     }
     setTriggerLogout(false);
-    navigate(from, { replace: true });
   };
 
-  if (isLoggedIn) {
-    return <Navigate to={from} replace />;
-  }
-
   return (
+    <>
+      {showAnimation && (
+        <div className="fixed inset-0 z-9999 flex items-center justify-center pointer-events-none">
+          <div>{unlockAnimation()}</div>
+        </div>
+      )}
+
+      {showLogout && (
+        <div className="fixed inset-0 z-9999 flex items-center justify-center pointer-events-none">
+          <div>{logoutAnimation()}</div>
+        </div>
+      )}
+
       <div className="flex flex-1 items-center justify-center p-4">
         <form onSubmit={(e) => e.preventDefault()}>
           <Card.Root maxW="sm">
@@ -97,9 +128,17 @@ export const LoginPage = () => {
             </Card.Body>
             <Card.Footer justifyContent="flex-end">
               {isError && (
-              <MyAlert status="error" title={errorMsg} description={errorDsc} />
+                <MyAlert
+                  status="error"
+                  title={errorMsg}
+                  description={errorDsc}
+                />
               )}
-            <Button type="submit" onClick={() => handleLogin()} variant="solid">
+              <Button
+                type="submit"
+                onClick={() => handleLogin()}
+                variant="solid"
+              >
                 Login
               </Button>
             </Card.Footer>
@@ -115,5 +154,6 @@ export const LoginPage = () => {
           </Card.Root>
         </form>
       </div>
+    </>
   );
 };

FrontendV2/src/pages/MyLoansPage.tsx

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

FrontendV2/src/utils/Fetcher.ts

@@ -17,6 +17,16 @@ export const getBorrowableItems = async (
     });
 
     if (!response.ok) {
+      if (response.status === 503) {
+        return {
+          data: null,
+          status: "error",
+          title: "Service deactivated",
+          description:
+            "The loan service is currently deactivated. Please try again later.",
+        };
+      }
+
       return {
         data: null,
         status: "error",
@@ -60,6 +70,16 @@ export const createLoan = async (
   });
 
   if (!response.ok) {
+    if (response.status === 503) {
+      return {
+        data: null,
+        status: "error",
+        title: "Service deactivated",
+        description:
+          "The loan service is currently deactivated. Please try again later.",
+      };
+    }
+
     return {
       data: null,
       status: "error",

FrontendV2/src/utils/i18n/locales/de/de.json

@@ -60,7 +60,7 @@
     "sure-delete-loan-2": "Für den Admin bleibt sie weiterhin sichtbar.",
     "delete": "Löschen",
     "change-language": "Sprache ändern",
-    "timezone-info": "Die angezeigten Daten und Uhrzeiten werden in deutscher Zeitzone dargestellt und müssen auch so eingegeben werden.",
+    "timezone-info": "Die angezeigten Daten und Uhrzeiten werden in deutscher Zeitzone dargestellt und müssen auch so eingegeben werden. Das gesamte System ist auf die deutsche Zeitzone eingestellt.",
     "optional-note": "Optionale Notiz",
     "note": "Notiz",
     "user-info-desc": "Hier können Sie Ihre persönlichen Informationen einsehen und das Passwort ändern. Falls Sie weitere Änderungen benötigen, wenden Sie sich bitte an einen Administrator.",
@@ -88,5 +88,18 @@
     "take-loan-success": "Ausleihe erfolgreich abgeholt",
     "return-loan-success": "Ausleihe erfolgreich zurückgegeben",
     "network-error": "Netzwerkfehler. Kontaktieren Sie den Administrator.",
-    "contactPage_messageDescription": "Bitte geben Sie hier Ihre Nachricht ein. Der Systemadministrator (Theis Gaedigk) wird sich so schnell wie möglich bei Ihnen melden."
+    "contactPage_messageDescription": "Bitte geben Sie hier Ihre Nachricht ein. Der Systemadministrator (Theis Gaedigk) wird sich so schnell wie möglich bei Ihnen melden.",
+    "naas": "No-as-a-service",
+    "try-naas": "Klick mich",
+    "naas-error": "Fehler mit no-as-a-service",
+    "naas-error-desc": "Ein Fehler ist beim Kommunizieren mit no-as-a-service aufgetreten.",
+    "naas-header": "Eine gute Möglichkeit, nein zu sagen...",
+    "error-deleting-loan-507": "Die Ausleihe kann nicht gelöscht werden, da sie noch nicht zurückgegeben wurde.",
+    "serviceDeactivatedHeadline": "Service deaktiviert",
+    "contactPage_serviceDeactivatedText": "Der Kontaktservice ist derzeit deaktiviert. Bitte versuchen Sie es später erneut.",
+    "loan_page_serviceDeactivatedText": "Der Ausleihservice ist derzeit deaktiviert. Bitte versuchen Sie es später erneut.",
+    "is-deactivated": "ist deaktiviert.",
+    "deactivated-services": "Deaktivierte Services",
+    "contactPage_messageErrorHeadline": "Fehler bei der Nachrichteneingabe",
+    "contactPage_messageErrorText2": "Bitte geben Sie eine Nachricht ein, bevor Sie sie senden."
 }

FrontendV2/src/utils/i18n/locales/en/en.json

@@ -60,7 +60,7 @@
     "sure-delete-loan-2": "It will remain visible to the admin.",
     "delete": "Delete",
     "change-language": "Change language",
-    "timezone-info": "The displayed dates and times are shown in Berlin timezone and must also be entered as such.",
+    "timezone-info": "The displayed dates and times are shown in Berlin timezone and must also be entered as such. The entire system is set to Berlin timezone.",
     "optional-note": "Optional note",
     "note": "Note",
     "user-info-desc": "Here you can view your personal information and change your password. If you need to make further changes, please contact an administrator.",
@@ -88,5 +88,18 @@
     "take-loan-success": "Loan taken successfully",
     "return-loan-success": "Loan returned successfully",
     "network-error": "Network error. Please contact the administrator.",
-    "contactPage_messageDescription": "Please enter your message here. The system administrator (Theis Gaedigk) will get back to you as soon as possible."
+    "contactPage_messageDescription": "Please enter your message here. The system administrator (Theis Gaedigk) will get back to you as soon as possible.",
+    "naas": "No-as-a-service",
+    "try-naas": "Click me",
+    "naas-error": "Error with no-as-a-service",
+    "naas-error-desc": "An error occurred while communicating with no-as-a-service.",
+    "naas-header": "A good way to say no...",
+    "error-deleting-loan-507": "The loan cannot be deleted because it has not been returned yet.",
+    "serviceDeactivatedHeadline": "Service deactivated",
+    "contactPage_serviceDeactivatedText": "The contact service is currently deactivated. Please try again later.",
+    "loan_page_serviceDeactivatedText": "The loan service is currently deactivated. Please try again later.",
+    "is-deactivated": "is deactivated.",
+    "deactivated-services": "Deactivated services",
+    "contactPage_messageErrorHeadline": "Error submitting message",
+    "contactPage_messageErrorText2": "Please enter a message before sending it."
 }

admin/src/Layout/Dashboard.tsx

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

admin/src/Layout/Sidebar.tsx

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

admin/src/components/ItemTable.tsx

@@ -57,32 +57,32 @@ const ItemTable: React.FC = () => {
 
   const handleItemNameChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, item_name: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, item_name: value } : it)),
     );
   };
 
   const handleCanBorrowRoleChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, can_borrow_role: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, can_borrow_role: value } : it)),
     );
   };
 
   const handleLockerNumberChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, safe_nr: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, safe_nr: value } : it)),
     );
   };
 
   const handleDoorKeyChange = (id: number, value: string) => {
     setItems((prev) =>
-      prev.map((it) => (it.id === id ? { ...it, door_key: value } : it))
+      prev.map((it) => (it.id === id ? { ...it, door_key: value } : it)),
     );
   };
 
   const setError = (
     status: "error" | "success",
     message: string,
-    description: string
+    description: string,
   ) => {
     setIsError(false);
     setErrorStatus(status);
@@ -102,7 +102,7 @@ const ItemTable: React.FC = () => {
             headers: {
               Authorization: `Bearer ${Cookies.get("token")}`,
             },
-          }
+          },
         );
         const data = await response.json();
         return data;
@@ -193,11 +193,50 @@ const ItemTable: React.FC = () => {
 
       {/* make table fill available width, like UserTable */}
       {!isLoading && (
+        <Table.ScrollArea flex="1" minH={0} rounded="md" mt={4}>
           <Table.Root
             size="sm"
             striped
-          w="100%"
-          style={{ tableLayout: "auto" }} // Spalten nach Content
+            stickyHeader
+            css={{
+              "& [data-sticky]": {
+                position: "sticky",
+                zIndex: 1,
+                bg: "bg",
+
+                _after: {
+                  content: '""',
+                  position: "absolute",
+                  pointerEvents: "none",
+                  top: "0",
+                  bottom: "-1px",
+                  width: "32px",
+                },
+              },
+
+              "& [data-sticky=end]": {
+                _after: {
+                  insetInlineEnd: "0",
+                  translate: "100% 0",
+                  shadow: "inset 8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& [data-sticky=start]": {
+                _after: {
+                  insetInlineStart: "0",
+                  translate: "-100% 0",
+                  shadow: "inset -8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& thead tr": {
+                shadow: "0 1px 0 0 {colors.border}",
+                "&:has(th[data-sticky])": {
+                  zIndex: 2,
+                },
+              },
+            }}
           >
             <Table.Header>
               <Table.Row>
@@ -315,8 +354,12 @@ const ItemTable: React.FC = () => {
                       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>
+                    {formatDateTime(item.entry_created_at)}
+                  </Table.Cell>
+                  <Table.Cell>
+                    {formatDateTime(item.entry_updated_at)}
+                  </Table.Cell>
                   <Table.Cell>{item.last_borrowed_person}</Table.Cell>
                   <Table.Cell>{item.currently_borrowing}</Table.Cell>
                   <Table.Cell whiteSpace="nowrap">
@@ -327,7 +370,7 @@ const ItemTable: React.FC = () => {
                           item.item_name,
                           item.safe_nr,
                           item.door_key,
-                        item.can_borrow_role
+                          item.can_borrow_role,
                         ).then((response) => {
                           if (response.success) {
                             setError(
@@ -338,7 +381,7 @@ const ItemTable: React.FC = () => {
                                 item.item_name +
                                 '" mit ID ' +
                                 item.id +
-                              " bearbeitet."
+                                " bearbeitet.",
                             );
                           }
                         })
@@ -356,7 +399,7 @@ const ItemTable: React.FC = () => {
                             setError(
                               "success",
                               "Gegenstand gelöscht",
-                            "Der Gegenstand wurde erfolgreich gelöscht."
+                              "Der Gegenstand wurde erfolgreich gelöscht.",
                             );
                           }
                         })
@@ -372,6 +415,7 @@ const ItemTable: React.FC = () => {
               ))}
             </Table.Body>
           </Table.Root>
+        </Table.ScrollArea>
       )}
       <Text>* LaP = Letzte ausleihende Person</Text>
       <Text>** Dav = Derzeit ausgeliehen von</Text>

admin/src/components/LoanTable.tsx

@@ -1,5 +1,6 @@
 import React from "react";
 import {
+  Box,
   Table,
   Spinner,
   Text,
@@ -31,7 +32,7 @@ const LoanTable: React.FC = () => {
   const setError = (
     status: "error" | "success",
     message: string,
-    description: string
+    description: string,
   ) => {
     setIsError(false);
     setErrorStatus(status);
@@ -65,7 +66,7 @@ const LoanTable: React.FC = () => {
             headers: {
               Authorization: `Bearer ${Cookies.get("token")}`,
             },
-          }
+          },
         );
         const data = await response.json();
         return data;
@@ -83,7 +84,7 @@ const LoanTable: React.FC = () => {
   }, [reload]);
 
   return (
-    <>
+    <Box h="full" display="flex" flexDirection="column" minH={0}>
       {/* Action toolbar */}
       <HStack
         mb={4}
@@ -131,7 +132,51 @@ const LoanTable: React.FC = () => {
         </VStack>
       )}
       {!isLoading && (
-        <Table.Root size="sm" striped>
+        <Table.ScrollArea flex="1" minH={0} rounded="md" mt={4}>
+          <Table.Root
+            size="sm"
+            striped
+            stickyHeader
+            css={{
+              "& [data-sticky]": {
+                position: "sticky",
+                zIndex: 1,
+                bg: "bg",
+
+                _after: {
+                  content: '""',
+                  position: "absolute",
+                  pointerEvents: "none",
+                  top: "0",
+                  bottom: "-1px",
+                  width: "32px",
+                },
+              },
+
+              "& [data-sticky=end]": {
+                _after: {
+                  insetInlineEnd: "0",
+                  translate: "100% 0",
+                  shadow: "inset 8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& [data-sticky=start]": {
+                _after: {
+                  insetInlineStart: "0",
+                  translate: "-100% 0",
+                  shadow: "inset -8px 0px 8px -8px rgba(0, 0, 0, 0.16)",
+                },
+              },
+
+              "& thead tr": {
+                shadow: "0 1px 0 0 {colors.border}",
+                "&:has(th[data-sticky])": {
+                  zIndex: 2,
+                },
+              },
+            }}
+          >
             <Table.Header>
               <Table.Row>
                 <Table.ColumnHeader>
@@ -141,7 +186,7 @@ const LoanTable: React.FC = () => {
                   <strong>Besitzer</strong>
                 </Table.ColumnHeader>
                 <Table.ColumnHeader>
-                <strong>Ausleih code</strong>
+                  <strong>Ausleihcode</strong>
                 </Table.ColumnHeader>
                 <Table.ColumnHeader>
                   <strong>Startdatum</strong>
@@ -193,7 +238,7 @@ const LoanTable: React.FC = () => {
                             setError(
                               "success",
                               "Loan deleted",
-                            "The loan has been successfully deleted."
+                              "The loan has been successfully deleted.",
                             );
                           }
                         })
@@ -209,8 +254,9 @@ const LoanTable: React.FC = () => {
               ))}
             </Table.Body>
           </Table.Root>
+        </Table.ScrollArea>
       )}
-    </>
+    </Box>
   );
 };
 

admin/src/components/ServerConfig.tsx

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

backendV2/info.json

@@ -1,11 +1,11 @@
 {
     "backend-info": {
-        "version": "v2.1.1 (demo)"
+        "version": "v2.2 (dev)"
     },
     "frontend-info": {
-        "version": "v2.1.2 (demo)"
+        "version": "v2.2 (dev)"
     },
     "admin-panel-info": {
-        "version": "v1.3.2 (demo)"
+        "version": "v1.4 (dev)"
     }
 }

backendV2/package-lock.json

@@ -1,21 +1,22 @@
 {
   "name": "backendv2",
-  "version": "1.0.0",
+  "version": "v2.1.1 (dev)",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "backendv2",
-      "version": "1.0.0",
+      "version": "v2.1.1 (dev)",
       "license": "ISC",
       "dependencies": {
         "cors": "^2.8.5",
         "dotenv": "^17.2.1",
         "ejs": "^3.1.10",
         "express": "^5.1.0",
+        "express-rate-limit": "^8.4.1",
         "jose": "^6.0.12",
         "mysql2": "^3.14.3",
-        "nodemailer": "^7.0.6"
+        "nodemailer": "^8.0.6"
       }
     },
     "node_modules/accepts": {
@@ -53,29 +54,49 @@
       "license": "MIT"
     },
     "node_modules/body-parser": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz",
-      "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+      "version": "2.2.2",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz",
+      "integrity": "sha512-oP5VkATKlNwcgvxi0vM0p/D3n2C3EReYVX+DNYs5TjZFn/oQt2j+4sVJtSMr18pdRr8wjTcBl6LoV+FUwzPmNA==",
       "license": "MIT",
       "dependencies": {
         "bytes": "^3.1.2",
         "content-type": "^1.0.5",
-        "debug": "^4.4.0",
+        "debug": "^4.4.3",
         "http-errors": "^2.0.0",
-        "iconv-lite": "^0.6.3",
+        "iconv-lite": "^0.7.0",
         "on-finished": "^2.4.1",
-        "qs": "^6.14.0",
-        "raw-body": "^3.0.0",
-        "type-is": "^2.0.0"
+        "qs": "^6.14.1",
+        "raw-body": "^3.0.1",
+        "type-is": "^2.0.1"
       },
       "engines": {
         "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
+    "node_modules/body-parser/node_modules/iconv-lite": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.7.2.tgz",
+      "integrity": "sha512-im9DjEDQ55s9fL4EYzOAv0yMqmMBSZp6G0VvFyTMPKWxiSBHUj9NW/qqLmXUwXrrM7AvqSlTCfvqRb0cM8yYqw==",
+      "license": "MIT",
+      "dependencies": {
+        "safer-buffer": ">= 2.1.2 < 3.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
       }
     },
     "node_modules/brace-expansion": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-      "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.1.0.tgz",
+      "integrity": "sha512-TN1kCZAgdgweJhWWpgKYrQaMNHcDULHkWwQIspdtjV4Y5aurRdZpjAqn6yX3FPqTA9ngHCc4hJxMAMgGfve85w==",
       "license": "MIT",
       "dependencies": {
         "balanced-match": "^1.0.0"
@@ -349,6 +370,24 @@
         "url": "https://opencollective.com/express"
       }
     },
+    "node_modules/express-rate-limit": {
+      "version": "8.4.1",
+      "resolved": "https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.4.1.tgz",
+      "integrity": "sha512-NGVYwQSAyEQgzxX1iCM978PP9AdO/hW93gMcF6ZwQCm+rFvLsBH6w4xcXWTcliS8La5EPRN3p9wzItqBwJrfNw==",
+      "license": "MIT",
+      "dependencies": {
+        "ip-address": "10.1.0"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/express-rate-limit"
+      },
+      "peerDependencies": {
+        "express": ">= 4.11"
+      }
+    },
     "node_modules/filelist": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
@@ -509,24 +548,21 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/iconv-lite": {
-      "version": "0.6.3",
-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
-      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
-      "license": "MIT",
-      "dependencies": {
-        "safer-buffer": ">= 2.1.2 < 3.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "license": "ISC"
     },
+    "node_modules/ip-address": {
+      "version": "10.1.0",
+      "resolved": "https://registry.npmjs.org/ip-address/-/ip-address-10.1.0.tgz",
+      "integrity": "sha512-XXADHxXmvT9+CRxhXg56LJovE+bmWnEWB78LB83VZTprKTmaC5QfruXocxzTZ2Kl0DNwKuBdlIhjL8LeY8Sf8Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 12"
+      }
+    },
     "node_modules/ipaddr.js": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
@@ -656,9 +692,9 @@
       }
     },
     "node_modules/minimatch": {
-      "version": "5.1.6",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
-      "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
+      "version": "5.1.9",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.9.tgz",
+      "integrity": "sha512-7o1wEA2RyMP7Iu7GNba9vc0RWWGACJOCZBJX2GJWip0ikV+wcOsgVuY9uE8CPiyQhkGFSlhuSkZPavN7u1c2Fw==",
       "license": "ISC",
       "dependencies": {
         "brace-expansion": "^2.0.1"
@@ -731,9 +767,9 @@
       }
     },
     "node_modules/nodemailer": {
-      "version": "7.0.10",
-      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-7.0.10.tgz",
-      "integrity": "sha512-Us/Se1WtT0ylXgNFfyFSx4LElllVLJXQjWi2Xz17xWw7amDKO2MLtFnVp1WACy7GkVGs+oBlRopVNUzlrGSw1w==",
+      "version": "8.0.6",
+      "resolved": "https://registry.npmjs.org/nodemailer/-/nodemailer-8.0.6.tgz",
+      "integrity": "sha512-Nm2XeuDwwy2wi5A+8jPWwQwNzcjNjhWdE3pVLoXEusxJqCnAPAgnBGkSmiLknbnWuOF9qraRpYZjfxqtKZ4tPw==",
       "license": "MIT-0",
       "engines": {
         "node": ">=6.0.0"
@@ -791,9 +827,9 @@
       }
     },
     "node_modules/path-to-regexp": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.3.0.tgz",
-      "integrity": "sha512-7jdwVIRtsP8MYpdXSwOS0YdD0Du+qOoF/AEPIt88PcCFrZCzx41oxku1jD88hZBwbNUIEfpqvuhjFaMAqMTWnA==",
+      "version": "8.4.2",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.4.2.tgz",
+      "integrity": "sha512-qRcuIdP69NPm4qbACK+aDogI5CBDMi1jKe0ry5rSQJz8JVLsC7jV8XpiJjGRLLol3N+R5ihGYcrPLTno6pAdBA==",
       "license": "MIT",
       "funding": {
         "type": "opencollective",
@@ -820,9 +856,9 @@
       }
     },
     "node_modules/qs": {
-      "version": "6.14.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.0.tgz",
-      "integrity": "sha512-YWWTjgABSKcvs/nWBi9PycY/JiPJqOD4JA6o9Sej2AtvSGarXxKC3OQSk4pAarbdQlKAh5D4FCQkJNkW+GAn3w==",
+      "version": "6.15.1",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.1.tgz",
+      "integrity": "sha512-6YHEFRL9mfgcAvql/XhwTvf5jKcOiiupt2FiJxHkiX1z4j7WL8J/jRHYLluORvc1XxB5rV20KoeK00gVJamspg==",
       "license": "BSD-3-Clause",
       "dependencies": {
         "side-channel": "^1.1.0"

backendV2/package.json

@@ -15,8 +15,9 @@
     "dotenv": "^17.2.1",
     "ejs": "^3.1.10",
     "express": "^5.1.0",
+    "express-rate-limit": "^8.4.1",
     "jose": "^6.0.12",
     "mysql2": "^3.14.3",
-    "nodemailer": "^7.0.6"
+    "nodemailer": "^8.0.6"
   }
 }

backendV2/routes/admin/database/loanDataMgmt.database.js

@@ -17,7 +17,10 @@ export const getAllLoans = async () => {
 };
 
 export const deleteLoanById = async (loanId) => {
-  const [result] = await pool.query("DELETE FROM loans WHERE id = ?", [loanId]);
+  const [result] = await pool.query(
+    "UPDATE loans SET deleted = true, deleted_admin = true WHERE id = ?",
+    [loanId],
+  );
   if (result.affectedRows > 0) return { success: true };
   return { success: false };
 };

backendV2/routes/admin/database/serverConfMgmt.database.js

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

backendV2/routes/admin/serverConfMgmt.route.js

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

backendV2/routes/api/api.route.js

@@ -1,9 +1,12 @@
 import express from "express";
 import { authenticate } from "../../services/authentication.js";
+import { checkIfServiceIsActive } from "../../services/functions.js";
 const router = express.Router();
 import dotenv from "dotenv";
 dotenv.config();
 
+const loan_service = "Loan Service";
+
 import {
   getItemsFromDatabaseV2,
   changeInSafeStateV2,
@@ -39,6 +42,7 @@ router.post("/change-state/:key/:itemId", authenticate, async (req, res) => {
 router.get(
   "/get-loan-by-code/:key/:loan_code",
   authenticate,
+  checkIfServiceIsActive(loan_service),
   async (req, res) => {
     const loan_code = req.params.loan_code;
     const result = await getLoanByCodeV2(loan_code);
@@ -54,6 +58,7 @@ router.get(
 router.post(
   "/set-return-date/:key/:loan_code",
   authenticate,
+  checkIfServiceIsActive(loan_service),
   async (req, res) => {
     const loanCode = req.params.loan_code;
     const result = await setReturnDateV2(loanCode);
@@ -69,6 +74,7 @@ router.post(
 router.post(
   "/set-take-date/:key/:loan_code",
   authenticate,
+  checkIfServiceIsActive(loan_service),
   async (req, res) => {
     const loanCode = req.params.loan_code;
     const result = await setTakeDateV2(loanCode);

backendV2/routes/app/database/loansMgmt.database.js

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

backendV2/routes/app/database/userMgmt.database.js

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

backendV2/routes/app/loanMgmt.route.js

@@ -1,8 +1,20 @@
 import express from "express";
 import { authenticate, generateToken } from "../../services/authentication.js";
-const router = express.Router();
+import {
+  checkIfServiceIsActive,
+  checkIfServiceIsActive2,
+} from "../../services/functions.js";
+
+// mailer imports
+import { sendMail } from "../../services/mailer/send.js";
+import { loanMail } from "../../services/mailer/templates/loan_created.js";
+
 import dotenv from "dotenv";
 dotenv.config();
+const router = express.Router();
+
+const loan_service = "Loan Service";
+const loan_mailer_service = "Loan Mailer";
 
 // database funcs import
 import {
@@ -16,9 +28,12 @@ import {
   setReturnDate,
   setTakeDate,
 } from "./database/loansMgmt.database.js";
-import { sendMailLoan } from "./services/mailer.js";
 
-router.post("/createLoan", authenticate, async (req, res) => {
+router.post(
+  "/createLoan",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     try {
       const { items, startDate, endDate, note } = req.body || {};
 
@@ -52,18 +67,26 @@ router.post("/createLoan", authenticate, async (req, res) => {
         note,
         itemIds,
       );
-
       if (result.success) {
+        if (await checkIfServiceIsActive2(loan_mailer_service)) {
           const mailInfo = await getLoanInfoWithID(result.data.id);
           console.log(mailInfo);
-      sendMailLoan(
-        mailInfo.data.username,
+          const { html, text } = loanMail(
+            req.user.first_name + " " + req.user.last_name,
             mailInfo.data.loaned_items_name,
             mailInfo.data.start_date,
             mailInfo.data.end_date,
             mailInfo.data.created_at,
             mailInfo.data.note,
           );
+          await sendMail({
+            to: process.env.MAIL_SENDEES,
+            subject: "Neue Ausleihe erstellt!",
+            html,
+            text,
+          });
+        }
+
         return res.status(201).json({
           message: "Loan created successfully",
           loanId: result.data.id,
@@ -86,9 +109,14 @@ router.post("/createLoan", authenticate, async (req, res) => {
       console.error("createLoan error:", err);
       return res.status(500).json({ message: "Failed to create loan" });
     }
-});
+  },
+);
 
-router.get("/loans", authenticate, async (req, res) => {
+router.get(
+  "/loans",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     const result = await getLoansFromDatabase(req.user.username);
     if (result.success) {
       res.status(200).json(result.data);
@@ -97,9 +125,14 @@ router.get("/loans", authenticate, async (req, res) => {
     } else {
       res.status(500).json({ message: "Failed to fetch loans" });
     }
-});
+  },
+);
 
-router.post("/set-return-date/:loan_code", authenticate, async (req, res) => {
+router.post(
+  "/set-return-date/:loan_code",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     const loanCode = req.params.loan_code;
     const result = await setReturnDate(loanCode);
     if (result.success) {
@@ -107,9 +140,14 @@ router.post("/set-return-date/:loan_code", authenticate, async (req, res) => {
     } else {
       res.status(500).json({ message: "Failed to set return date" });
     }
-});
+  },
+);
 
-router.post("/set-take-date/:loan_code", authenticate, async (req, res) => {
+router.post(
+  "/set-take-date/:loan_code",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     const loanCode = req.params.loan_code;
     const result = await setTakeDate(loanCode);
     if (result.success) {
@@ -117,7 +155,8 @@ router.post("/set-take-date/:loan_code", authenticate, async (req, res) => {
     } else {
       res.status(500).json({ message: "Failed to set take date" });
     }
-});
+  },
+);
 
 router.get("/all-items", authenticate, async (req, res) => {
   const result = await getItems();
@@ -128,26 +167,50 @@ router.get("/all-items", authenticate, async (req, res) => {
   }
 });
 
-router.delete("/delete-loan/:id", authenticate, async (req, res) => {
+router.delete(
+  "/delete-loan/:id",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     const loanId = req.params.id;
     const result = await SETdeleteLoanFromDatabase(loanId);
     if (result.success) {
       res.status(200).json({ message: "Loan deleted successfully" });
     } else {
+      if (result.code === "LOAN_NOT_FOUND") {
+        res.status(404).json({ message: "Loan not found" });
+      }
+
+      if (result.code === "LOAN_NOT_RETURNED") {
+        res.status(507).json({
+          message: "Cannot delete loan that has not been returned",
+        });
+      }
+
       res.status(500).json({ message: "Failed to delete loan" });
     }
-});
+  },
+);
 
-router.get("/all-loans", authenticate, async (req, res) => {
+router.get(
+  "/all-loans",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     const result = await getALLLoans();
     if (result.success) {
       res.status(200).json(result.data);
     } else {
       res.status(500).json({ message: "Failed to fetch loans" });
     }
-});
+  },
+);
 
-router.post("/borrowable-items", authenticate, async (req, res) => {
+router.post(
+  "/borrowable-items",
+  checkIfServiceIsActive(loan_service),
+  authenticate,
+  async (req, res) => {
     const { startDate, endDate } = req.body || {};
     if (!startDate || !endDate) {
       return res
@@ -168,6 +231,7 @@ router.post("/borrowable-items", authenticate, async (req, res) => {
         .status(500)
         .json({ message: "Failed to fetch borrowable items" });
     }
-});
+  },
+);
 
 export default router;

backendV2/routes/app/services/mailer.js

@@ -1,215 +0,0 @@
-import nodemailer from "nodemailer";
-import dotenv from "dotenv";
-dotenv.config();
-
-const formatDateTime = (value) => {
-  if (value == null) return "N/A";
-
-  const toOut = (d) => {
-    if (!(d instanceof Date) || isNaN(d.getTime())) return "N/A";
-    const dd = String(d.getDate()).padStart(2, "0");
-    const mm = String(d.getMonth() + 1).padStart(2, "0");
-    const yyyy = d.getFullYear();
-    const hh = String(d.getHours()).padStart(2, "0");
-    const mi = String(d.getMinutes()).padStart(2, "0");
-    return `${dd}.${mm}.${yyyy} ${hh}:${mi} Uhr`;
-  };
-
-  if (value instanceof Date) return toOut(value);
-  if (typeof value === "number") return toOut(new Date(value));
-
-  const s = String(value).trim();
-
-  // Direct pattern: "YYYY-MM-DD[ T]HH:mm[:ss]"
-  const m = s.match(/^(\d{4})-(\d{2})-(\d{2})[ T](\d{2}):(\d{2})(?::\d{2})?/);
-  if (m) {
-    const [, y, M, d, h, min] = m;
-    return `${d}.${M}.${y} ${h}:${min} Uhr`;
-  }
-
-  // ISO or other parseable formats
-  const dObj = new Date(s);
-  if (!isNaN(dObj.getTime())) return toOut(dObj);
-
-  return "N/A";
-};
-
-function buildLoanEmail({
-  user,
-  items,
-  startDate,
-  endDate,
-  createdDate,
-  note,
-}) {
-  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>
-              <tr>
-                <td style="padding:10px 14px; color:#6b7280; vertical-align:top;">Notiz</td>
-                <td style="padding:10px 14px; font-weight:600; color:#111827;">${
-                  note || "Keine Notiz"
-                }</td>
-              </tr>
-            </tbody>
-          </table>
-          <p style="margin:22px 0 0 0; font-size:14px;">
-            <a href="https://admin.insta.the1s.de/api" style="display:inline-block; background:${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,
-  note,
-}) {
-  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)}`,
-    `Notiz: ${note || "Keine Notiz"}`,
-  ].join("\n");
-}
-
-export function sendMailLoan(
-  user,
-  items,
-  startDate,
-  endDate,
-  createdDate,
-  note,
-) {
-  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,
-        note,
-      }),
-      html: buildLoanEmail({
-        user,
-        items,
-        startDate,
-        endDate,
-        createdDate,
-        note,
-      }),
-    });
-
-    console.log("Loan message sent:", info.messageId);
-  })();
-}

backendV2/routes/app/services/mailer_v2.js

@@ -1,43 +0,0 @@
-import nodemailer from "nodemailer";
-import dotenv from "dotenv";
-dotenv.config();
-
-export function sendMail(username, message) {
-  const transporter = nodemailer.createTransport({
-    host: process.env.MAIL_HOST,
-    port: process.env.MAIL_PORT,
-    secure: true,
-    auth: {
-      user: process.env.MAIL_USER,
-      pass: process.env.MAIL_PASSWORD,
-    },
-  });
-
-  (async () => {
-    const mailText = `Neue Kontaktanfrage im Ausleihsystem.\n\nBenutzername: ${username}\n\nNachricht:\n${message}`;
-
-    const mailHtml = `<!DOCTYPE html>
-<html lang="de">
-  <head>
-    <meta charset="UTF-8" />
-    <title>Neue Nachricht im Ausleihsystem</title>
-  </head>
-  <body style="font-family: Arial, sans-serif; line-height: 1.5; color: #222;">
-    <h2>Neue Nachricht im Ausleihsystem</h2>
-    <p><strong>Benutzername:</strong> ${username}</p>
-    <p><strong>Nachricht:</strong></p>
-    <p style="white-space: pre-line;">${message}</p>
-  </body>
-</html>`;
-
-    const info = await transporter.sendMail({
-      from: '"Ausleihsystem" <noreply@mcs-medien.de>',
-      to: process.env.MAIL_SENDEES_CONTACT,
-      subject: "Sie haben eine neue Nachricht!",
-      text: mailText,
-      html: mailHtml,
-    });
-
-    console.log("Contact message sent: %s", info.messageId);
-  })();
-}

backendV2/routes/app/userMgmt.route.js

@@ -1,14 +1,28 @@
 import express from "express";
 import { authenticate, generateToken } from "../../services/authentication.js";
+import { checkIfServiceIsActive } from "../../services/functions.js";
 const router = express.Router();
 import dotenv from "dotenv";
 dotenv.config();
 
-// database funcs import
-import { loginFunc, changePassword } from "./database/userMgmt.database.js";
-import { sendMail } from "./services/mailer_v2.js";
+const user_frontend_service = "User Frontend";
+const contact_form_service = "Contact Form Service";
 
-router.post("/login", async (req, res) => {
+// database funcs import
+import {
+  loginFunc,
+  changePassword,
+  getDeactivatedServices,
+} from "./database/userMgmt.database.js";
+
+// mailer imports
+import { sendMail } from "../../services/mailer/send.js";
+import { contactMail } from "../../services/mailer/templates/contact.js";
+
+router.post(
+  "/login",
+  checkIfServiceIsActive(user_frontend_service),
+  async (req, res) => {
     const result = await loginFunc(req.body.username, req.body.password);
     if (result.success) {
       const token = await generateToken({
@@ -22,9 +36,14 @@ router.post("/login", async (req, res) => {
     } else {
       res.status(401).json({ message: "Invalid credentials" });
     }
-});
+  },
+);
 
-router.post("/change-password", authenticate, async (req, res) => {
+router.post(
+  "/change-password",
+  checkIfServiceIsActive(user_frontend_service),
+  authenticate,
+  async (req, res) => {
     const oldPassword = req.body.oldPassword;
     const newPassword = req.body.newPassword;
     const username = req.user.username;
@@ -34,15 +53,47 @@ router.post("/change-password", authenticate, async (req, res) => {
     } else {
       res.status(500).json({ message: "Failed to change password" });
     }
-});
+  },
+);
 
-router.post("/contact", authenticate, async (req, res) => {
-  const message = req.body.message;
-  const username = req.user.username;
+router.post(
+  "/contact",
+  checkIfServiceIsActive(contact_form_service),
+  authenticate,
+  async (req, res) => {
+    try {
+      const message = req.body?.message;
+      const username = req.user?.first_name + " " + req.user?.last_name;
 
-  sendMail(username, message);
+      if (!username || !message) {
+        return res
+          .status(400)
+          .json({ message: "Username and message are required" });
+      }
+
+      const { html, text } = contactMail({ username, message });
+      await sendMail({
+        to: process.env.MAIL_SENDEES_CONTACT,
+        subject: "Neue Nachricht!",
+        html,
+        text,
+      });
 
       res.status(200).json({ message: "Contact message sent successfully" });
+    } catch (error) {
+      console.error("Failed to send contact mail:", error);
+      res.status(500).json({ message: "Failed to send contact message" });
+    }
+  },
+);
+
+router.get("/deactivated-services", authenticate, async (req, res) => {
+  const result = await getDeactivatedServices();
+  if (result.success) {
+    res.status(200).json(result.data);
+  } else {
+    res.status(500).json({ message: "Failed to fetch deactivated services" });
+  }
 });
 
 export default router;

backendV2/schemeV2.mock.sql

@@ -1,100 +0,0 @@
-USE borrow_system_new;
-
--- USERS
-INSERT INTO users (username, password, email, first_name, last_name, role, is_admin)
-VALUES
-  ('user1', 'passwordhash1', 'user1@example.com', 'First1', 'Last1', 1, false),
-  ('user2', 'passwordhash2', 'user2@example.com', 'First2', 'Last2', 1, false),
-  ('user3', 'passwordhash3', 'user3@example.com', 'First3', 'Last3', 2, false),
-  ('admin1', 'passwordhash4', 'admin1@example.com', 'Admin',  'One',  9, true),
-  ('admin2', 'passwordhash5', 'admin2@example.com', 'Admin',  'Two',  9, true);
-
--- ITEMS
-INSERT INTO items (item_name, can_borrow_role, in_safe, safe_nr, door_key, last_borrowed_person, currently_borrowing)
-VALUES
-  ('Item1', 1, true,  1, 101, NULL, NULL),
-  ('Item2', 1, true,  2, 102, 'user1', 'user1'),
-  ('Item3', 2, true,  3, 103, 'user2', NULL),
-  ('Item4', 1, false, NULL, NULL, NULL, NULL),
-  ('Item5', 2, false, NULL, NULL, 'user3', 'user3');
-
--- LOANS
-INSERT INTO loans (
-  username,
-  lockers,
-  loan_code,
-  start_date,
-  end_date,
-  take_date,
-  returned_date,
-  created_at,
-  loaned_items_id,
-  loaned_items_name,
-  deleted,
-  note
-)
-VALUES
-  (
-    'user1',
-    JSON_ARRAY('Locker1', 'Locker2'),
-    '123456',
-    '2026-02-01 09:00:00',
-    '2026-02-10 17:00:00',
-    '2026-02-01 09:15:00',
-    NULL,
-    '2026-02-01 09:00:00',
-    JSON_ARRAY(1, 2),
-    JSON_ARRAY('Item1', 'Item2'),
-    false,
-    'Erste allgemeine Ausleihe'
-  ),
-  (
-    'user2',
-    JSON_ARRAY('Locker3'),
-    '234567',
-    '2026-02-02 10:00:00',
-    '2026-02-05 16:00:00',
-    '2026-02-02 10:05:00',
-    '2026-02-05 15:30:00',
-    '2026-02-02 10:00:00',
-    JSON_ARRAY(3),
-    JSON_ARRAY('Item3'),
-    false,
-    'Zurückgegeben vor Enddatum'
-  ),
-  (
-    'user3',
-    JSON_ARRAY(),
-    '345678',
-    '2026-02-03 08:30:00',
-    '2026-02-15 18:00:00',
-    NULL,
-    NULL,
-    '2026-02-03 08:30:00',
-    JSON_ARRAY(5),
-    JSON_ARRAY('Item5'),
-    false,
-    'Noch ausgeliehen'
-  ),
-  (
-    'user1',
-    JSON_ARRAY('Locker4'),
-    '456789',
-    '2025-12-01 09:00:00',
-    '2025-12-03 17:00:00',
-    '2025-12-01 09:10:00',
-    '2025-12-03 16:45:00',
-    '2025-12-01 09:00:00',
-    JSON_ARRAY(1),
-    JSON_ARRAY('Item1'),
-    true,
-    'Alte, gelöschte Ausleihe'
-  );
-
--- API KEYS
-INSERT INTO apiKeys (api_key, entry_name)
-VALUES
-  ('10000001', 'Entry1'),
-  ('10000002', 'Entry2'),
-  ('10000003', 'Entry3'),
-  ('10000004', 'Entry4');

backendV2/schemeV2.sql

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

backendV2/server.js

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

backendV2/services/authentication.js

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

backendV2/services/functions.js

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

backendV2/services/mailer/send.js

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

backendV2/services/mailer/templates/contact.js

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

backendV2/services/mailer/templates/loan_created.js

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

backendV2/services/mailer/transporter.js

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

changelog.md

@@ -0,0 +1,29 @@
+# Changelog for upcoming version: vX.X
+
+Introduction
+
+## New features
+
+- 
+
+## Improvements
+
+- 
+
+## Fixed bugs
+
+- 
+
+---
+
+## New version numbers
+
+**Backend:** vX.X
+
+**Frontend:** vX.X
+
+**Admin panel:** vX.X
+
+---
+
+-[Theis](https://portfolio-theis.de)

docker-compose.yml

@@ -4,14 +4,14 @@ services:
   #    build: ./FrontendV2
   #    ports:
   #      - "8001:80"
-  #    restart: unless-stopped
+  #    restart: always
 
   #  admin-frontend:
   #    container_name: borrow_system-admin-frontend
   #    build: ./admin
   #    ports:
   #      - "8003:80"
-  #    restart: unless-stopped
+  #    restart: always
 
   backend_v2:
     container_name: borrow_system-backend_v2
@@ -26,12 +26,12 @@ services:
       DB_NAME: borrow_system_new
     depends_on:
       - mysql_v2
-    restart: unless-stopped
+    restart: always
 
   mysql_v2:
     container_name: borrow_system-mysql-v2
     image: mysql:8.0
-    restart: unless-stopped
+    restart: always
     environment:
       MYSQL_ROOT_PASSWORD: ${DB_PASSWORD_V2}
       MYSQL_DATABASE: borrow_system_new
@@ -42,6 +42,15 @@ services:
     ports:
       - "3310:3306"
 
+  no-as-a-service:
+    container_name: borrow_system-naas
+    ports:
+      - "3000:3000"
+    build:
+      context: ./no-as-a-service
+      dockerfile: Dockerfile
+    restart: always
+
 volumes:
   mysql-data:
   mysql-v2-data: