16185 and 16630 language switching

server.js

@@ -1,5 +1,8 @@
 const next = require("next");
-const { createServer } = require("http");
+const { createServer: createHttpServer } = require("http");
+const { createServer: createHttpsServer } = require("https");
+const fs = require("fs");
+const path = require("path");
 const appInsights = require("applicationinsights");
 
 const initAppInsights = (instrumentationKey) => {
@@ -26,44 +29,75 @@ const startServer = async (config) => {
     };
 
     const app = next(serverOptions);
-    await app.prepare(); // prepare BEFORE starting the server
+    await app.prepare();
 
     const handleNextRequests = app.getRequestHandler();
 
-    const srv = createServer((req, res) => {
+    const httpsOptions = {
+        key: fs.readFileSync(
+            path.join(__dirname, "certificates", "cert-key.pem")
+        ),
+        cert: fs.readFileSync(path.join(__dirname, "certificates", "cert.pem")),
+    };
+
+    // HTTPS server on port 3000
+    const httpsServer = createHttpsServer(httpsOptions, (req, res) => {
         if (config.useAppInsights) {
             appInsights.defaultClient.trackNodeHttpRequest({
                 request: req,
                 response: res,
             });
         }
-
         handleNextRequests(req, res);
     });
 
-    await new Promise((resolve, reject) => {
-        srv.on("error", reject);
-        srv.on("listening", () => resolve());
-        srv.listen(config.port, config.hostname);
+    // HTTP server on port 3001 for redirect
+    const httpServer = createHttpServer((req, res) => {
+        const host = req.headers.host?.split(":")[0] || "localhost";
+        res.writeHead(301, {
+            Location: `https://${host}:3000${req.url}`,
+        });
+        res.end();
+    });
+
+    await new Promise((resolve, reject) => {
+        httpsServer.on("error", reject);
+        httpsServer.on("listening", () => {
+            console.log(`HTTPS server listening on port ${config.port}`);
+            resolve();
+        });
+        httpsServer.listen(config.port, config.hostname);
+    });
+
+    await new Promise((resolve, reject) => {
+        httpServer.on("error", reject);
+        httpServer.on("listening", () => {
+            console.log(
+                `HTTP server listening on port ${config.httpPort} (redirecting to HTTPS)`
+            );
+            resolve();
+        });
+        httpServer.listen(config.httpPort, config.hostname);
     });
 
-    // Graceful shutdown handling
     process.on("SIGTERM", () => {
         console.log("Received SIGTERM, shutting down gracefully...");
-        srv.close(() => {
-            console.log("Server closed.");
-            process.exit(0);
+        httpsServer.close(() => {
+            httpServer.close(() => {
+                console.log("Servers closed.");
+                process.exit(0);
+            });
         });
     });
 
     return app;
 };
 
-// App configuration
 const startTime = Date.now();
 const serverConfig = {
-    hostname: "0.0.0.0", // Required for Azure App Service
-    port: parseInt(process.env.PORT, 10) || 3000,
+    hostname: "0.0.0.0",
+    port: 3000, // HTTPS port
+    httpPort: 3001, // HTTP redirect port
     env: process.env.APP_ENV || process.env.NODE_ENV || "production",
     useAppInsights: initAppInsights(
         process.env.NEXT_PUBLIC_APPINSIGHTS_INSTRUMENTATIONKEY
@@ -73,7 +107,7 @@ const serverConfig = {
 startServer(serverConfig)
     .then(() => {
         console.log(
-            `Server ready on http://${serverConfig.hostname}:${serverConfig.port} [${serverConfig.env}]`
+            `Server ready on https://${serverConfig.hostname}:${serverConfig.port} [${serverConfig.env}]`
         );
 
         if (serverConfig.useAppInsights) {