Update fare display based on currency and fix seat allocation

apps/edr-passenger-api/src/modules/payments/payments.controller.ts

@@ -128,12 +128,16 @@ export class PaymentsController {
   @ApiOperation({
     summary: "List payment systems supported by the platform",
     description:
-      "Returns the global catalog of accepted payment systems. Not user-specific. Optionally filter by region to match a passenger's nationality.",
+      "Returns the global catalog of accepted payment systems. Filter by `currency` (e.g. ETB, DJF, USD) to get methods that settle in that currency, and/or by `region` to match a passenger's nationality. Both filters can be combined.",
   })
+  @ApiQuery({ name: "currency", required: false, example: "DJF", description: "Settlement currency — ETB, DJF, USD, etc." })
   @ApiQuery({ name: "region", enum: PaymentRegionEnum, required: false })
   @ApiOkResponse({ type: [SupportedPaymentMethodDto] })
-  getMethods(@Query("region") region?: PaymentRegionEnum) {
-    return this.service.getSupportedPaymentMethods(region);
+  getMethods(
+    @Query("currency") currency?: string,
+    @Query("region") region?: PaymentRegionEnum,
+  ) {
+    return this.service.getSupportedPaymentMethods(region, currency);
   }
 
   @Get("checkout")

apps/edr-passenger-api/src/modules/payments/payments.service.ts

@@ -473,7 +473,7 @@ export class PaymentsService {
     });
   }
 
-  getSupportedPaymentMethods(region?: PaymentRegionEnum) {
+  getSupportedPaymentMethods(region?: PaymentRegionEnum, currency?: string) {
     return this.prisma.paymentMethod.findMany({
       where: {
         enabled: true,
@@ -487,6 +487,7 @@ export class PaymentsService {
               },
             }
           : {}),
+        ...(currency ? { currency: currency.toUpperCase() } : {}),
       },
       orderBy: [{ sortOrder: "asc" }, { displayName: "asc" }],
     });