fix(SW-188): more semantic name for tolang transformer function

server/routers/hotels/output.ts

@@ -1,6 +1,6 @@
 import { z } from "zod"
 
-import { fromUppercaseToLangEnum } from "@/server/utils"
+import { toLang } from "@/server/utils"
 
 const RatingsSchema = z
   .object({
@@ -423,11 +423,11 @@ export const getHotelDataSchema = z.object({
     type: z.string(), // No enum here but the standard return appears to be "hotels".
     language: z
       .string()
-      .refine((val) => fromUppercaseToLangEnum(val) !== undefined, {
+      .refine((val) => toLang(val) !== undefined, {
         message: "Invalid language",
       })
       .transform((val) => {
-        const lang = fromUppercaseToLangEnum(val)
+        const lang = toLang(val)
         if (!lang) {
           throw new Error("Invalid language")
         }

server/utils.ts

@@ -28,10 +28,9 @@ const toApiLangMap: { [key in Lang]: string } = {
 }
 
 /**
- * Helper function to convert langs in uppercase or capitalized format (e.g. the Hotel endpoint)
- * to to Lang enum.
+ * Helper function to convert lang string to Lang enum.
  */
-export function fromUppercaseToLangEnum(lang: string): Lang | undefined {
+export function toLang(lang: string): Lang | undefined {
   const lowerCaseLang = lang.toLowerCase()
   return Object.values(Lang).find((l) => l === lowerCaseLang)
 }