Add pending amount to booking list

src/main/kotlin/com/android/trisolarisserver/repo/PaymentRepo.kt

@@ -17,4 +17,19 @@ interface PaymentRepo : JpaRepository<Payment, UUID> {
         """
     )
     fun sumAmountByBookingId(@Param("bookingId") bookingId: UUID): Long
+
+    @Query(
+        """
+        select p.booking.id as bookingId, coalesce(sum(p.amount), 0) as total
+        from Payment p
+        where p.booking.id in :bookingIds
+        group by p.booking.id
+        """
+    )
+    fun sumAmountByBookingIds(@Param("bookingIds") bookingIds: List<UUID>): List<BookingPaymentSumRow>
+}
+
+interface BookingPaymentSumRow {
+    val bookingId: UUID
+    val total: Long
 }