updated the anonymousname

Signed-off-by: Hrusi01 <hrusikeshkar01@gmail.com>

Author: Hrusi01

apps/server/src/routers/anonymousName.ts

@@ -0,0 +1,66 @@
+import type { FastifyInstance } from "fastify";
+import crypto from "node:crypto";
+import { z } from "zod";
+
+export async function anonymousRoutes(fastify: FastifyInstance) {
+
+	const bodySchema = z.object({
+		userId: z.string().uuid(),
+		threadId: z.string().uuid(),
+		password: z.string().min(1), 
+	});
+
+	
+	const animals = [
+		"Tiger", "Wolf", "Falcon", "Panther", "Phoenix", "Leopard", "Eagle", "Raven",
+		"Cobra", "Viper", "Hawk", "Dragon", "Lynx", "Jaguar", "Shark", "Stallion",
+		"Owl", "Rhino", "Bear", "Panda", "Griffin", "Kraken", "Hydra", "Fox",
+		"Bison", "Cheetah", "Gorilla", "Turtle", "Scorpion", "Mantis",
+	];
+
+	const adjectives = [
+		"Shadow", "Silent", "Ghost", "Crimson", "Blue", "Iron", "Night", "Frost",
+		"Storm", "Electric", "Golden", "Cyber", "Wild", "Atomic", "Nebula", "Lunar",
+		"Solar", "Thunder", "Noble", "Brave", "Swift", "Hidden", "Obsidian", "Phantom",
+		"Radiant", "Mystic", "Silver", "Scarlet", "Feral", "Arcane",
+	];
+
+	fastify.post("/anon-name", async (request, reply) => {
+		const parsed = bodySchema.safeParse(request.body);
+
+		if (!parsed.success) {
+			return reply.status(400).send({
+				success: false,
+				error: "Invalid userId, threadId, or password",
+			});
+		}
+
+		const { userId, threadId, password } = parsed.data;
+
+		try {
+			const seed = `${userId}-${threadId}`;
+
+			const hash = crypto
+				.createHmac("sha256", password)
+				.update(seed)
+				.digest("hex");
+
+			const adjIndex = parseInt(hash.substring(0, 8), 16) % adjectives.length;
+			const animalIndex = parseInt(hash.substring(8, 16), 16) % animals.length;
+			const num = parseInt(hash.substring(16, 20), 16) % 100;
+
+			const anonName = `${adjectives[adjIndex]}${animals[animalIndex]}${num}`;
+
+			return reply.status(200).send({
+				success: true,
+				anonName,
+			});
+		} catch (err) {
+			fastify.log.error(err);
+			return reply.status(500).send({
+				success: false,
+				error: "Server error generating anonymous name",
+			});
+		}
+	});
+}