feat: add toggle to DJF

apps/edr-freight-api/src/modules/contracts/booking-request.service.ts

@@ -7,6 +7,7 @@ import {
 } from '@nestjs/common';
 import type { Freight } from '@edr/types';
 
+import { ManualPaymentSettingsService } from '../payment-settings/manual-payment-settings.service';
 import { YardScopeService } from '../rule-engine/services/yard-scope.service';
 import { BookingRequestRepository } from './booking-request.repository';
 import { ContractsService } from './contracts.service';
@@ -30,6 +31,7 @@ export class BookingRequestService {
     private readonly contractBookingService: ContractBookingService,
     private readonly notifier: ContractNotifierService,
     private readonly yardScope: YardScopeService,
+    private readonly paymentSettings: ManualPaymentSettingsService,
   ) {}
 
   /**
@@ -101,6 +103,17 @@ export class BookingRequestService {
         }
       }
     }
+    // The currency picker hides a switched-off currency, but a stale tab must
+    // not be able to raise a shipment nobody can pay for.
+    if (
+      dto.paymentCurrency &&
+      !(await this.paymentSettings.isCurrencyOffered(dto.paymentCurrency))
+    ) {
+      throw new BadRequestException(
+        `${dto.paymentCurrency.toUpperCase()} is not accepted as a billing currency right now. Pick another currency.`,
+      );
+    }
+
     await this.contractBookingService.assertRequestWithinCapacity(contract, {
       containers: dto.containers,
       bulk: dto.bulk,