further typing improvements

db/booking.ts

@@ -1,11 +1,24 @@
-import { v4 as uuidv4 } from 'uuid'
 import * as mongoose from 'mongoose'
-
-import { getDays, dateFormatBackend } from '../helpers/date'
-
+import { v4 as uuidv4 } from 'uuid'
+import { dateFormatBackend, getDays } from '../helpers/date'
+import { Booker } from './booker'
 import { BOOKING_STATUS } from './bookingStatus'
 
-const BookingSchema = new mongoose.Schema(
+export interface Booking
+  extends mongoose.Document,
+    mongoose.SchemaTimestampsConfig {
+  uuid: string
+  booker: Booker
+  startDate: Date
+  endDate: Date
+  status: string
+  purpose: string
+  org: string
+  destination: string
+  days?: string[]
+}
+
+const BookingSchema = new mongoose.Schema<Booking>(
   {
     // need a seperate uuid to be able to target a booking anonimously
     uuid: {
@@ -51,7 +64,7 @@ BookingSchema.virtual('days').get(function () {
   return getDays({ startDate: this.startDate, endDate: this.endDate })
 })
 
-BookingSchema.virtual('hash').get(function () {})
+const Model: mongoose.Model<Booking> =
+  mongoose.models.Booking || mongoose.model('Booking', BookingSchema)
 
-export default mongoose.models.Booking ||
-  mongoose.model('Booking', BookingSchema)
+export default Model