refactor(web): dedupe isRTL via utils locale module

Re-export isRTL from @reactive-resume/utils/locale in the web locale
helper and consolidate RTL detection tests in the utils package.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/libs/locale.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { isLocale, isRTL, resolveLocale } from "./locale";
+import { isLocale, resolveLocale } from "./locale";
 
 describe("isLocale", () => {
 	it("returns true for known locale en-US", () => {
@@ -44,46 +44,3 @@ describe("resolveLocale", () => {
 		expect(resolveLocale("")).toBe("en-US");
 	});
 });
-
-describe("isRTL", () => {
-	it("returns true for Arabic", () => {
-		expect(isRTL("ar-SA")).toBe(true);
-	});
-
-	it("returns true for Hebrew", () => {
-		expect(isRTL("he-IL")).toBe(true);
-	});
-
-	it("returns true for Persian/Farsi", () => {
-		expect(isRTL("fa-IR")).toBe(true);
-	});
-
-	it("returns true for Urdu", () => {
-		expect(isRTL("ur-PK")).toBe(true);
-	});
-
-	it("returns false for English", () => {
-		expect(isRTL("en-US")).toBe(false);
-	});
-
-	it("returns false for German", () => {
-		expect(isRTL("de-DE")).toBe(false);
-	});
-
-	it("returns false for Chinese", () => {
-		expect(isRTL("zh-CN")).toBe(false);
-	});
-
-	it("returns false for unknown locale", () => {
-		expect(isRTL("xyz-XX")).toBe(false);
-	});
-
-	it("matches prefix case-insensitively (lowercase prefix)", () => {
-		expect(isRTL("AR-SA")).toBe(true);
-	});
-
-	it("works with locale-only string (no region)", () => {
-		expect(isRTL("ar")).toBe(true);
-		expect(isRTL("en")).toBe(false);
-	});
-});

apps/web/src/libs/locale.ts

@@ -3,7 +3,9 @@ import type { Locale } from "@reactive-resume/utils/locale";
 import { i18n } from "@lingui/core";
 import { msg } from "@lingui/core/macro";
 import Cookies from "js-cookie";
-import { localeSchema } from "@reactive-resume/utils/locale";
+import { isRTL, localeSchema } from "@reactive-resume/utils/locale";
+
+export { isRTL };
 
 const storageKey = "locale";
 const defaultLocale: Locale = "en-US";
@@ -75,24 +77,6 @@ export const resolveLocale = (locale: string): Locale => {
 	return isLocale(locale) ? locale : defaultLocale;
 };
 
-const RTL_LANGUAGES = new Set([
-	"ar", // Arabic
-	"ckb", // Kurdish (Sorani)
-	"dv", // Dhivehi
-	"fa", // Persian
-	"he", // Hebrew
-	"ps", // Pashto
-	"sd", // Sindhi
-	"ug", // Uyghur
-	"ur", // Urdu
-	"yi", // Yiddish
-]);
-
-export function isRTL(locale: string): boolean {
-	const language = locale.split("-")[0].toLowerCase();
-	return RTL_LANGUAGES.has(language);
-}
-
 export const getLocale = () => {
 	const locale = Cookies.get(storageKey);
 	if (!locale || !isLocale(locale)) return defaultLocale;

packages/utils/src/locale.test.ts

@@ -46,9 +46,16 @@ describe("isRTL", () => {
 		["ar-SA", true],
 		["he-IL", true],
 		["fa-IR", true],
+		["ur-PK", true],
 		["en-US", false],
 		["en-GB", false],
 		["fr-FR", false],
+		["de-DE", false],
+		["zh-CN", false],
+		["xyz-XX", false],
+		["AR-SA", true],
+		["ar", true],
+		["en", false],
 	])("returns %s → %s", (locale, expected) => {
 		expect(isRTL(locale)).toBe(expected);
 	});