make form just simple

db/index.js

@@ -34,16 +34,15 @@ export async function getBookedDays() {
 }
 
 export async function createBooking({ name, email, startDate, endDate }) {
-  const booker = new Booker({ name, email })
-  await booker.save()
+  const ignoreCaseEmailMatcher = new RegExp(email, 'i')
+  let booker = await Booker.findOne({ email: ignoreCaseEmailMatcher }).exec()
+  if (!booker) {
+    booker = new Booker({ name, email })
+    await booker.save()
+  }
+
   const booking = new Booking({ startDate, endDate, booker: booker._id })
   await booking.save()
-  return {
-    booker: booking.booker._id,
-    startDate: booking.startDate,
-    endDate: booking.endDate,
-    bookedDate: booking.bookedDate,
-    confirmed: booking.confirmed,
-    confirmedDate: booking.confimredDate,
-  }
+  await booking.populate('booker').execPopulate()
+  return booking.toJSON({ getters: true, virtuals: true })
 }