Allow use of useCurrentUser/useCurrentTeam hooks in unauthenticated components

app/hooks/useCurrentUser.ts

@@ -1,8 +1,23 @@
 import invariant from "invariant";
+import User from "~/models/User";
 import useStores from "./useStores";
 
-export default function useCurrentUser() {
+/**
+ * Returns the current user, or undefined if there is no current user and `rejectOnEmpty` is set to
+ * false.
+ *
+ * @param options.rejectOnEmpty - If true, throws an error if there is no current user. Defaults to true.
+ */
+function useCurrentUser(options: { rejectOnEmpty: false }): User | undefined;
+function useCurrentUser(options?: { rejectOnEmpty: true }): User;
+function useCurrentUser({
+  rejectOnEmpty = true,
+}: { rejectOnEmpty?: boolean } = {}) {
   const { auth } = useStores();
-  invariant(auth.user, "user required");
-  return auth.user;
+  if (rejectOnEmpty) {
+    invariant(auth.user, "user required");
+  }
+  return auth.user || undefined;
 }
+
+export default useCurrentUser;