refactor(LOY-62): revert to switch case for ScriptedRewardText label text

utils/rewards.ts

@@ -1,13 +1,13 @@
 import {
-  COUPON_REWARD_TYPES,
   RESTAURANT_REWARD_IDS,
   REWARD_IDS,
+  REWARD_TYPES,
 } from "@/constants/rewards"
 
 import type {
-  CouponRewardType,
   RestaurantRewardId,
   RewardId,
+  RewardType,
 } from "@/types/components/myPages/rewards"
 import type { RewardWithRedeem } from "@/server/routers/contentstack/reward/output"
 
@@ -46,8 +46,6 @@ export function isRestaurantOnSiteTierReward(
   return isOnSiteTierReward(reward) && isRestaurantReward(reward.reward_id)
 }
 
-export function isCouponRewardType(
-  type: RewardWithRedeem["rewardType"]
-): type is CouponRewardType {
-  return COUPON_REWARD_TYPES.some((t) => t === type)
+export function getRewardType(type?: string): RewardType | null {
+  return REWARD_TYPES.find((t) => t === type) ?? null
 }