intercity fix

apps/edr-freight-api/src/modules/train-scheduling/booking-batch.service.ts

@@ -3322,6 +3322,22 @@ export class BookingBatchService implements OnModuleInit {
     booking: Booking,
     reason: "paid" | "gov",
   ): Promise<void> {
+    // Stamp the computed wagon need on the link. Several callers pass a booking
+    // loaded without cargo relations (ensurePaidBookingAllocated), and a NULL
+    // wagonsRequired makes every capacity/occupancy reader miscount this
+    // booking as 1 wagon — reload with the relations wagonsFor sizes from.
+    const wagonDims = await this.loadWagonDims();
+    const full =
+      booking.bookingContainers || booking.cargoType
+        ? booking
+        : await this.dataSource.getRepository(Booking).findOne({
+            where: { id: booking.id },
+            relations: {
+              bookingContainers: { containerType: true },
+              cargoType: true,
+            },
+          });
+    const wagonsRequired = this.wagonsFor(full ?? booking, wagonDims);
     await this.dataSource.transaction(async (manager) => {
       const exists =
         await this.trainScheduleBookingsRepository.existsForBooking(
@@ -3338,6 +3354,7 @@ export class BookingBatchService implements OnModuleInit {
         status: reason === "paid" ? "PAID" : booking.status,
         schedulingStatus: "SCHEDULED",
         scheduledAt: new Date(),
+        wagonsRequired,
         paymentDeadline: null,
         selectedForBatchAt: null,
       } as never);