added total monthly expenditure

app/lib/auth.ts

@@ -2,6 +2,7 @@ import NextAuth, { NextAuthConfig } from 'next-auth';
 import GoogleProvider from 'next-auth/providers/google';
 import { Session } from 'next-auth';
 import { AuthenticatedUser } from './types/next-auth';
+import { BillingLocation } from './db-types';
 
 const authConfig: NextAuthConfig = {
    callbacks: {
@@ -48,7 +49,18 @@ const authConfig: NextAuthConfig = {
 
 export const { auth, handlers: { GET, POST } } = NextAuth(authConfig);
 
-export const withUser = (fn: (user: AuthenticatedUser, ...args:any) => Promise<any>) => async (...args:any) => {
+export type AuthErrorMessage = {
+   message: string,
+   errors: {
+      message: string,
+   }
+}
+
+export const isAuthErrorMessage = (obj: any): obj is AuthErrorMessage => {
+   return (obj.message && obj.errors && obj.errors.message);
+}
+
+export const withUser = (fn: (user: AuthenticatedUser, ...args:any) => Promise<Array<BillingLocation>>) => async (...args:any) => {
    const session = await auth();
 
    if(!session) {
@@ -57,7 +69,7 @@ export const withUser = (fn: (user: AuthenticatedUser, ...args:any) => Promise<a
             message: "Not authenticated",
          },
          message: "Not authenticated",
-      });
+      } as AuthErrorMessage);
    }
    const { user } = session;