feat: backend side of timezone convert, new route created for using luxon to convert timezones

backend/package-lock.json

@@ -15,9 +15,11 @@
         "fastify": "^5.2.1",
         "fastify-cors": "^6.0.3",
         "fastify-multipart": "^5.3.1",
-        "libreoffice-convert": "^1.6.0"
+        "libreoffice-convert": "^1.6.0",
+        "luxon": "^3.5.0"
       },
       "devDependencies": {
+        "@types/luxon": "^3.4.2",
         "@types/node": "^22.13.4",
         "prettier": "3.5.1",
         "ts-node": "^10.9.2",
@@ -263,6 +265,13 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/luxon": {
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/@types/luxon/-/luxon-3.4.2.tgz",
+      "integrity": "sha512-TifLZlFudklWlMBfhubvgqTXRzLDI5pCbGa4P8a3wPyUQSW+1xQ5eDsreP9DWHX3tjq1ke96uYG/nwundroWcA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/node": {
       "version": "22.13.4",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-22.13.4.tgz",
@@ -682,6 +691,15 @@
         "set-cookie-parser": "^2.6.0"
       }
     },
+    "node_modules/luxon": {
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/luxon/-/luxon-3.5.0.tgz",
+      "integrity": "sha512-rh+Zjr6DNfUYR3bPwJEnuwDdqMbxZW7LOQfUN4B54+Cl+0o5zaU9RJ6bcidfDtC1cWCZXQ+nvX8bf6bAji37QQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/make-error": {
       "version": "1.3.6",
       "resolved": "https://registry.npmjs.org/make-error/-/make-error-1.3.6.tgz",

backend/package.json

@@ -18,9 +18,11 @@
     "fastify": "^5.2.1",
     "fastify-cors": "^6.0.3",
     "fastify-multipart": "^5.3.1",
-    "libreoffice-convert": "^1.6.0"
+    "libreoffice-convert": "^1.6.0",
+    "luxon": "^3.5.0"
   },
   "devDependencies": {
+    "@types/luxon": "^3.4.2",
     "@types/node": "^22.13.4",
     "prettier": "3.5.1",
     "ts-node": "^10.9.2",

backend/server.ts

@@ -5,6 +5,7 @@ import { libreConvert } from "./src/routes/libreconvert.route";
 import { colorConvert } from "./src/routes/colorconvert.route";
 import { passwordGenerate } from "./src/routes/passwordgenerate.route";
 import { regexTest } from "./src/routes/regextest.route";
+import { tmzConvert } from "./src/routes/tmzconvert.route";
 
 const app = Fastify({ logger: true });
 
@@ -19,6 +20,7 @@ app.register(libreConvert);
 app.register(colorConvert);
 app.register(passwordGenerate);
 app.register(regexTest);
+app.register(tmzConvert);
 
 const PORT = process.env.PORT || 4000;
 app.listen({ port: Number(PORT), host: "0.0.0.0" }, () => {

backend/src/routes/tmzconvert.route.ts

@@ -0,0 +1,45 @@
+import { FastifyInstance, FastifyReply, FastifyRequest } from "fastify";
+import { DateTime } from "luxon";
+
+interface RequestBody {
+  time: string;
+  fromZone: string;
+  toZone: string;
+}
+
+export async function tmzConvert(app: FastifyInstance) {
+  app.post(
+    "/api/tmz-convert",
+    async (
+      request: FastifyRequest<{ Body: RequestBody }>,
+      reply: FastifyReply,
+    ) => {
+      const data = request.body;
+      const time = data.time;
+      const fromZone = data.fromZone;
+      const toZone = data.toZone;
+
+      try {
+        if (!time || !fromZone || !toZone) {
+          return reply.status(400).send({ error: "Missing parameters" });
+        }
+
+        const dateTime = DateTime.fromISO(time, { zone: fromZone });
+
+        if (!dateTime.isValid) {
+          return reply.status(400).send({ error: "Invalid date or time zone" });
+        }
+
+        const convertedTime = dateTime.setZone(toZone).toISO();
+
+        return reply
+          .header("Content-Type", "text/plain")
+          .status(200)
+          .send(convertedTime);
+      } catch (error) {
+        console.error("Conversion error:", error);
+        reply.status(500).send({ error: "Error converting time" });
+      }
+    },
+  );
+}