code refactoring + many security/bug fixes

pages/api/v1/public/users/[id].ts

@@ -0,0 +1,18 @@
+import type { NextApiRequest, NextApiResponse } from "next";
+import getPublicUserById from "@/lib/api/controllers/public/users/getPublicUserById";
+import { getToken } from "next-auth/jwt";
+
+export default async function users(req: NextApiRequest, res: NextApiResponse) {
+  const token = await getToken({ req });
+  const requestingId = token?.id;
+
+  const lookupId = req.query.id as string;
+
+  // Check if "lookupId" is the user "id" or their "username"
+  const isId = lookupId.split("").every((e) => Number.isInteger(parseInt(e)));
+
+  if (req.method === "GET") {
+    const users = await getPublicUserById(lookupId, isId, requestingId);
+    return res.status(users.status).json({ response: users.response });
+  }
+}