refactored/cleaned up API + added support for renaming tags

lib/api/controllers/users/userId/getPublicUserById.ts

@@ -0,0 +1,48 @@
+import { prisma } from "@/lib/api/db";
+
+export default async function getUser(
+  targetId: number | string,
+  isId: boolean,
+  requestingUsername?: string
+) {
+  const user = await prisma.user.findUnique({
+    where: isId
+      ? {
+          id: Number(targetId) as number,
+        }
+      : {
+          username: targetId as string,
+        },
+    include: {
+      whitelistedUsers: {
+        select: {
+          username: true,
+        },
+      },
+    },
+  });
+
+  if (!user)
+    return { response: "User not found or profile is private.", status: 404 };
+
+  const whitelistedUsernames = user.whitelistedUsers?.map(
+    (usernames) => usernames.username
+  );
+
+  if (
+    user?.isPrivate &&
+    (!requestingUsername ||
+      !whitelistedUsernames.includes(requestingUsername?.toLowerCase()))
+  ) {
+    return { response: "User not found or profile is private.", status: 404 };
+  }
+
+  const { password, ...lessSensitiveInfo } = user;
+
+  const data = {
+    name: lessSensitiveInfo.name,
+    username: lessSensitiveInfo.username,
+  };
+
+  return { response: data, status: 200 };
+}