add more options to user management

hooks/firebase/useRemoveSubUser.ts

@@ -0,0 +1,27 @@
+import { useMutation, useQueryClient } from "react-query";
+import functions from '@react-native-firebase/functions';
+import { ProfileType, useAuthContext } from "@/contexts/AuthContext";
+import { HttpsCallableResult } from "@firebase/functions";
+
+export const useRemoveSubUser = () => {
+  const queryClient = useQueryClient();
+  const { profileType, profileData } = useAuthContext();
+
+  return useMutation({
+    mutationKey: ["removeSubUser"],
+    mutationFn: async (userId: string) => {
+      if (profileType === ProfileType.PARENT) {
+        return await functions().httpsCallable("removeSubUser")({
+          userId,
+          familyId: profileData?.familyId!,
+        }) as HttpsCallableResult<{ success: boolean }>;
+      } else {
+        throw Error("Can't remove sub-users as a non-parent.");
+      }
+    },
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["getChildrenByParentId"] });
+      queryClient.invalidateQueries({ queryKey: ["familyMembers"] });
+    },
+  });
+};