default to max milage found for a new bill

db/index.ts

@@ -28,7 +28,6 @@ export async function getBookedDays() {
 export async function getBookingByUUID(uuid: string) {
   await connect()
   return Booking.findOne({ uuid })
-  //return booking.populate('bill').populate('booker').execPopulate()
 }
 
 export async function getBookings() {
@@ -116,3 +115,12 @@ export async function patchBill(bookingUUID: string, billData: BillDocument) {
 
   return bill.toJSON()
 }
+
+export async function getMilageMax(): Promise<number> {
+  const billMaxMilageEnd = await Bill.findOne({})
+    .sort('-milageEnd')
+    .select('milageEnd')
+    .exec()
+
+  return billMaxMilageEnd?.milageEnd
+}