chore: create a utils/languages file

app/[lang]/(live)/error.tsx

@@ -4,10 +4,11 @@ import { useParams, usePathname } from "next/navigation"
 import { useEffect } from "react"
 import { useIntl } from "react-intl"
 
-import { findLang } from "@/constants/languages"
 import { login } from "@/constants/routes/handleAuth"
 import { SESSION_EXPIRED } from "@/server/errors/trpc"
 
+import { findLang } from "@/utils/languages"
+
 import styles from "./error.module.css"
 
 import { LangParams } from "@/types/params"
@@ -34,9 +35,7 @@ export default function Error({
   const lang = findLang(pathname)
 
   return (
-    <section
-      className={styles.layout}
-    >
+    <section className={styles.layout}>
       <div className={styles.content}>
         {lang}: {intl.formatMessage({ id: "Something went wrong!" })}
       </div>

constants/languages.ts

@@ -64,43 +64,3 @@ export const languageSelect = [
   { label: "Norwegian", value: "No" },
   { label: "Swedish", value: "Sv" },
 ]
-
-// -- Lang util functions --
-
-export function findLang(pathname: string) {
-  return Object.values(Lang).find(
-    (l) => pathname.startsWith(`/${l}/`) || pathname === `/${l}`
-  )
-}
-
-/**
- * Helper function to convert langs in uppercase or capitalized format (e.g. the Hotel endpoint)
- * to to Lang enum.
- */
-export function fromUppercaseToLangEnum(lang: string): Lang | undefined {
-  const lowerCaseLang = lang.toLowerCase()
-  return Object.values(Lang).find((l) => l === lowerCaseLang)
-}
-
-/**
- * Helper function to convert Lang enum to uppercase
- * Needed for certtain API (e.g. the Hotel endpoint).
- */
-export const toUppercaseLang = (lang: Lang): string => {
-  switch (lang) {
-    case Lang.en:
-      return "En"
-    case Lang.sv:
-      return "Sv"
-    case Lang.no:
-      return "No"
-    case Lang.fi:
-      return "Fi"
-    case Lang.da:
-      return "Da"
-    case Lang.de:
-      return "De"
-    default:
-      throw new Error("Invalid language")
-  }
-}

middleware.ts

@@ -1,6 +1,6 @@
 import { NextMiddleware, NextResponse } from "next/server"
 
-import { findLang, Lang } from "./constants/languages"
+import { Lang } from "./constants/languages"
 import * as authRequired from "./middlewares/authRequired"
 import * as bookingFlow from "./middlewares/bookingFlow"
 import * as cmsContent from "./middlewares/cmsContent"
@@ -9,6 +9,7 @@ import * as currentWebLogout from "./middlewares/currentWebLogout"
 import * as handleAuth from "./middlewares/handleAuth"
 import * as myPages from "./middlewares/myPages"
 import * as webView from "./middlewares/webView"
+import { findLang } from "./utils/languages"
 
 export const middleware: NextMiddleware = async (request, event) => {
   const lang = findLang(request.nextUrl.pathname)

middlewares/authRequired.ts

@@ -1,12 +1,12 @@
 import { NextResponse } from "next/server"
 
-import { findLang } from "@/constants/languages"
 import { authRequired } from "@/constants/routes/authRequired"
 import { login } from "@/constants/routes/handleAuth"
 import { env } from "@/env/server"
 import { internalServerError } from "@/server/errors/next"
 
 import { auth } from "@/auth"
+import { findLang } from "@/utils/languages"
 
 import type { NextMiddleware } from "next/server"
 

middlewares/cmsContent.ts

@@ -1,9 +1,9 @@
 import { NextResponse } from "next/server"
 
-import { findLang } from "@/constants/languages"
 import { notFound } from "@/server/errors/next"
 
 import { resolve as resolveEntry } from "@/utils/entry"
+import { findLang } from "@/utils/languages"
 import { removeTrailingSlash } from "@/utils/url"
 
 import { getDefaultRequestHeaders } from "./utils"

middlewares/currentWebLogin.ts

@@ -1,8 +1,9 @@
 import { NextResponse } from "next/server"
 
-import { findLang } from "@/constants/languages"
 import { badRequest } from "@/server/errors/next"
 
+import { findLang } from "@/utils/languages"
+
 import type { NextMiddleware } from "next/server"
 
 import type { MiddlewareMatcher } from "@/types/middleware"

middlewares/currentWebLogout.ts

@@ -1,9 +1,10 @@
 import { NextResponse } from "next/server"
 
-import { findLang } from "@/constants/languages"
 import { env } from "@/env/server"
 import { badRequest, internalServerError } from "@/server/errors/next"
 
+import { findLang } from "@/utils/languages"
+
 import type { NextMiddleware } from "next/server"
 
 import type { MiddlewareMatcher } from "@/types/middleware"

middlewares/myPages.ts

@@ -1,11 +1,11 @@
 import { NextResponse } from "next/server"
 
-import { findLang } from "@/constants/languages"
 import { myPages, overview } from "@/constants/routes/myPages"
 import { env } from "@/env/server"
 import { internalServerError, notFound } from "@/server/errors/next"
 
 import { resolve as resolveEntry } from "@/utils/entry"
+import { findLang } from "@/utils/languages"
 
 import { getDefaultRequestHeaders } from "./utils"
 

middlewares/utils.ts

@@ -1,5 +1,4 @@
-import { findLang } from "@/constants/languages"
-
+import { findLang } from "@/utils/languages"
 import { removeTrailingSlash } from "@/utils/url"
 
 import type { NextRequest } from "next/server"

middlewares/webView.ts

@@ -1,6 +1,5 @@
 import { type NextMiddleware, NextResponse } from "next/server"
 
-import { findLang } from "@/constants/languages"
 import {
   loyaltyPagesWebviews,
   myPagesWebviews,
@@ -12,6 +11,7 @@ import { badRequest, notFound } from "@/server/errors/next"
 
 import { decryptData } from "@/utils/aes"
 import { resolve as resolveEntry } from "@/utils/entry"
+import { findLang } from "@/utils/languages"
 
 import { getDefaultRequestHeaders } from "./utils"
 

server/routers/hotels/output.ts

@@ -1,6 +1,6 @@
 import { z } from "zod"
 
-import { fromUppercaseToLangEnum } from "@/constants/languages"
+import { fromUppercaseToLangEnum } from "@/utils/languages"
 
 const RatingsSchema = z.object({
   tripAdvisor: z.object({

utils/languages.ts

@@ -0,0 +1,16 @@
+import { Lang } from "@/constants/languages"
+
+export function findLang(pathname: string) {
+  return Object.values(Lang).find(
+    (l) => pathname.startsWith(`/${l}/`) || pathname === `/${l}`
+  )
+}
+
+/**
+ * Helper function to convert langs in uppercase or capitalized format (e.g. the Hotel endpoint)
+ * to to Lang enum.
+ */
+export function fromUppercaseToLangEnum(lang: string): Lang | undefined {
+  const lowerCaseLang = lang.toLowerCase()
+  return Object.values(Lang).find((l) => l === lowerCaseLang)
+}