add config to get discount rate plans

Author: andrewHEguardian

client/components/mma/cancel/cancellationSaves/digipack/DigiSubThankYouOffer.tsx

@@ -19,7 +19,10 @@ import {
 	LoadingState,
 	useAsyncLoader,
 } from '@/client/utilities/hooks/useAsyncLoader';
-import { getDiscountMonthsForDigisub } from '@/client/utilities/pricingConfig/digisubDiscountPricing';
+import {
+	getDiscountMonthsForDigisub,
+	getDiscountRatePlanId,
+} from '@/client/utilities/pricingConfig/digisubDiscountPricing';
 import { formatAmount } from '@/client/utilities/utils';
 import type { PaidSubscriptionPlan } from '@/shared/productResponse';
 import { getMainPlan } from '@/shared/productResponse';
@@ -145,6 +148,7 @@ export const DigiSubThankYouOffer = () => {
 		CancellationContext,
 	) as CancellationContextInterface;
 	const productDetail = cancellationContext.productDetail;
+	const discountMonths = getDiscountMonthsForDigisub(productDetail);
 
 	const {
 		data,
@@ -159,9 +163,8 @@ export const DigiSubThankYouOffer = () => {
 				body: JSON.stringify({
 					subscriptionNumber:
 						productDetail.subscription.subscriptionId,
-					// Todo: make this fetch rate plan from config
 					discountProductRatePlanId:
-						'2c92c0f962cec7990162d3882afc52dd',
+						getDiscountRatePlanId(discountMonths),
 				}),
 			}),
 		JsonResponseHandler,
@@ -196,7 +199,6 @@ export const DigiSubThankYouOffer = () => {
 		productDetail.subscription,
 	) as PaidSubscriptionPlan;
 
-	const discountMonths = getDiscountMonthsForDigisub(productDetail);
 	const newPrice =
 		(productDetail.subscription.nextPaymentPrice ?? mainPlan.price) / 100;
 
@@ -216,7 +218,7 @@ export const DigiSubThankYouOffer = () => {
 						subscriptionNumber:
 							productDetail.subscription.subscriptionId,
 						discountProductRatePlanId:
-							'2c92c0f962cec7990162d3882afc52dd',
+							getDiscountRatePlanId(discountMonths),
 					}),
 				},
 			);

client/utilities/pricingConfig/digisubDiscountPricing.ts

@@ -1,4 +1,5 @@
 import { isOneOf } from '@guardian/libs';
+import { conf } from '@/server/config';
 import {
 	getMainPlan,
 	isPaidSubscriptionPlan,
@@ -29,3 +30,25 @@ export function getDiscountMonthsForDigisub(
 			return 12;
 	}
 }
+
+export function getDiscountRatePlanId(months: number): string {
+	return MonthsToDiscountRatePlanIdMapping[conf.STAGE][months];
+}
+
+const MonthsToDiscountRatePlanIdMapping: Record<
+	string,
+	Record<number, string>
+> = {
+	DEV: {
+		3: '2c92c0f962cec7990162d3882afc52dd',
+		12: '8ad08f068b5b9ca2018b5cadf0897ed3',
+	},
+	CODE: {
+		3: '2c92c0f962cec7990162d3882afc52dd',
+		12: '8ad08f068b5b9ca2018b5cadf0897ed3',
+	},
+	PROD: {
+		3: '2c92a0ff64176cd40164232c8ec97661',
+		12: '8a128adf8b64bcfd018b6b6fdc7674f5',
+	},
+};