ändern der Praxissoftware in deutsch und Spanisch

app.js

@@ -4,6 +4,8 @@ const express = require("express");
 const session = require("express-session");
 const helmet = require("helmet");
 const mysql = require("mysql2/promise");
+const fs = require("fs");
+const path = require("path");
 
 // ✅ Verschlüsselte Config
 const { configExists, saveConfig } = require("./config-manager");
@@ -97,6 +99,19 @@ app.use(
   }),
 );
 
+// ✅ i18n Middleware
+app.use((req, res, next) => {
+  const lang = req.session.lang || "de"; // Standard DE
+
+  const filePath = path.join(__dirname, "locales", `${lang}.json`);
+  const raw = fs.readFileSync(filePath, "utf-8");
+
+  res.locals.t = JSON.parse(raw); // t = translations
+  res.locals.lang = lang;
+
+  next();
+});
+
 const flashMiddleware = require("./middleware/flash.middleware");
 app.use(flashMiddleware);
 
@@ -166,6 +181,43 @@ app.use((req, res, next) => {
   next();
 });
 
+//Sprachen Route
+// ✅ i18n Middleware (Sprache pro Benutzer über Session)
+app.use((req, res, next) => {
+  const lang = req.session.lang || "de"; // Standard: Deutsch
+
+  let translations = {};
+  try {
+    const filePath = path.join(__dirname, "locales", `${lang}.json`);
+    translations = JSON.parse(fs.readFileSync(filePath, "utf-8"));
+  } catch (err) {
+    console.error("❌ i18n Fehler:", err.message);
+  }
+
+  // ✅ In EJS verfügbar machen
+  res.locals.t = translations;
+  res.locals.lang = lang;
+
+  next();
+});
+
+app.get("/lang/:lang", (req, res) => {
+  const newLang = req.params.lang;
+
+  if (!["de", "es"].includes(newLang)) {
+    return res.redirect(req.get("Referrer") || "/dashboard");
+  }
+
+  req.session.lang = newLang;
+
+  // ✅ WICHTIG: Session speichern bevor redirect
+  req.session.save((err) => {
+    if (err) console.error("❌ Session save error:", err);
+
+    return res.redirect(req.get("Referrer") || "/dashboard");
+  });
+});
+
 /* ===============================
    DEINE LOGIK (unverändert)
 ================================ */

locales/de.json

@@ -0,0 +1,26 @@
+{
+  "global": {
+    "save": "Speichern",
+    "cancel": "Abbrechen",
+    "search": "Suchen",
+    "reset": "Reset",
+    "dashboard": "Dashboard"
+  },
+  "sidebar": {
+    "patients": "Patienten",
+    "medications": "Medikamente",
+    "servicesOpen": "Offene Leistungen",
+    "billing": "Abrechnung",
+    "admin": "Verwaltung",
+    "logout": "Logout"
+  },
+  "dashboard": {
+    "welcome": "Willkommen",
+    "waitingRoom": "Wartezimmer-Monitor",
+    "noWaitingPatients": "Keine Patienten im Wartezimmer."
+  },
+  "adminSidebar": {
+    "users": "Userverwaltung",
+    "database": "Datenbankverwaltung"
+  }
+}

locales/es.json

@@ -0,0 +1,27 @@
+{
+  "global": {
+    "save": "Guardar",
+    "cancel": "Cancelar",
+    "search": "Buscar",
+    "reset": "Resetear",
+    "dashboard": "Panel"
+  },
+  "sidebar": {
+    "patients": "Pacientes",
+    "medications": "Medicamentos",
+    "servicesOpen": "Servicios abiertos",
+    "billing": "Facturación",
+    "admin": "Administración",
+    "logout": "Cerrar sesión"
+  },
+  "dashboard": {
+    "welcome": "Bienvenido",
+    "waitingRoom": "Monitor sala de espera",
+    "noWaitingPatients": "No hay pacientes en la sala de espera."
+  },
+
+  "adminSidebar": {
+    "users": "Administración de usuarios",
+    "database": "Administración de base de datos"
+  }
+}