Add pending amount to booking list

src/main/kotlin/com/android/trisolarisserver/controller/BookingFlow.kt

@@ -157,6 +157,9 @@ class BookingFlow(
             Role.HOUSEKEEPING,
             Role.FINANCE
         )
+        val property = propertyRepo.findById(propertyId).orElseThrow {
+            ResponseStatusException(HttpStatus.NOT_FOUND, "Property not found")
+        }
         val statuses = parseStatuses(status)
         val bookings = if (statuses.isEmpty()) {
             bookingRepo.findByPropertyIdOrderByCreatedAtDesc(propertyId)
@@ -171,8 +174,27 @@ class BookingFlow(
                 .groupBy { it.bookingId }
                 .mapValues { (_, rows) -> rows.map { it.roomNumber }.distinct().sorted() }
         }
+        val staysByBooking = if (bookingIds.isEmpty()) {
+            emptyMap()
+        } else {
+            roomStayRepo.findByBookingIdIn(bookingIds).groupBy { it.booking.id!! }
+        }
+        val paymentsByBooking = if (bookingIds.isEmpty()) {
+            emptyMap()
+        } else {
+            paymentRepo.sumAmountByBookingIds(bookingIds)
+                .associate { it.bookingId to it.total }
+        }
         return bookings.map { booking ->
             val guest = booking.primaryGuest
+            val stays = staysByBooking[booking.id].orEmpty()
+            val expectedPay = if (stays.isEmpty()) {
+                null
+            } else {
+                computeExpectedPay(stays, property.timezone)
+            }
+            val collected = paymentsByBooking[booking.id] ?: 0L
+            val pending = expectedPay?.let { it - collected }
             BookingListItem(
                 id = booking.id!!,
                 status = booking.status.name,
@@ -191,7 +213,8 @@ class BookingFlow(
                 femaleCount = booking.femaleCount,
                 totalGuestCount = booking.totalGuestCount,
                 expectedGuestCount = booking.expectedGuestCount,
-                notes = booking.notes
+                notes = booking.notes,
+                pending = pending
             )
         }
     }

src/main/kotlin/com/android/trisolarisserver/controller/dto/BookingDtos.kt

@@ -72,7 +72,8 @@ data class BookingListItem(
     val femaleCount: Int?,
     val totalGuestCount: Int?,
     val expectedGuestCount: Int?,
-    val notes: String?
+    val notes: String?,
+    val pending: Long? = null
 )
 
 data class BookingDetailResponse(

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
 }

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

@@ -43,6 +43,13 @@ interface RoomStayRepo : JpaRepository<RoomStay, UUID> {
     """)
     fun findByBookingId(@Param("bookingId") bookingId: UUID): List<RoomStay>
 
+    @Query("""
+        select rs
+        from RoomStay rs
+        where rs.booking.id in :bookingIds
+    """)
+    fun findByBookingIdIn(@Param("bookingIds") bookingIds: List<UUID>): List<RoomStay>
+
     @Query("""
         select rs.room.id
         from RoomStay rs