fix: add more language entries to SUPPORTED_LANGUAGES for translation

NekoWings · NekoWings · commit 5d1a9113f94b · 2025-12-01T12:49:57.000+08:00
diff --git a/utils/language/detect.test.ts b/utils/language/detect.test.ts
@@ -1,78 +1,40 @@
-import { beforeEach, describe, expect, it } from 'vitest'
+// @ts-expect-error -- guesslanguage has no types
+import { guessLanguage } from 'guesslanguage'
+import { afterAll, beforeEach, describe, expect, it, vi } from 'vitest'
 import { fakeBrowser } from 'wxt/testing'
 
-import { detectLanguage } from './detect'
+import type { LanguageCode } from './detect'
+import { detectLanguage, getLanguageName, SUPPORTED_LANGUAGE_CODES } from './detect'
 
-const englishSentences = [
-  'Hello, how are you?',
-  'This is a test sentence.',
-  'The quick brown fox jumps over the lazy dog.',
-  'I love programming in JavaScript.',
-  'What is your favorite color?',
-  'The weather is nice today.',
-  'I enjoy reading books in my free time.',
-  'Can you help me with this problem?',
-  'I am learning new things every day.',
-]
-
-const chineseSentences = [
-  '你好，今天怎么样？',
-  '我喜欢编程和学习新知识。',
-  '今天天气很好，我们去散步吧。',
-  '你最喜欢的食物是什么？',
-  '我正在学习中文，希望能流利地说。',
-  '这本书非常有趣，我很喜欢。',
-  '你能帮我解决这个问题吗？',
-  '你对未来有什么计划？',
-]
-
-const japaneseSentences = [
-  'こんにちは、今日はどうですか？',
-  '私はプログラミングと新しい知識を学ぶのが好きです。',
-  '今日は天気が良いので、散歩に行きましょう。',
-  'あなたの好きな食べ物は何ですか？',
-  '私は日本語を勉強しています。流暢に話せるようになりたいです。',
-  'この本はとても面白いです。私はそれが大好きです。',
-  'この問題を解決するのを手伝ってくれますか？',
-  'あなたの将来の計画は何ですか？',
-]
-
-const koreanSentences = [
-  '안녕하세요, 오늘은 어때요?',
-  '저는 프로그래밍과 새로운 지식을 배우는 것을 좋아합니다.',
-  '오늘 날씨가 좋아서 산책하러 가요.',
-  '가장 좋아하는 음식은 무엇인가요?',
-  '저는 한국어를 배우고 있습니다. 유창하게 말할 수 있게 되고 싶어요.',
-  '이 책은 정말 재미있어요. 저는 그것을 좋아해요.',
-  '이 문제를 해결하는 데 도와줄 수 있나요?',
-  '당신의 미래 계획은 무엇인가요?',
-]
+const guessDetectSpy = vi.spyOn(guessLanguage, 'detect')
 
 describe('language detector', () => {
   beforeEach(() => {
     // See https://webext-core.aklinker1.io/fake-browser/reseting-state
     fakeBrowser.reset()
+    guessDetectSpy.mockReset()
+    guessDetectSpy.mockImplementation((_text: string, cb: (lang: string) => void) => cb('en'))
+  })
+
+  it.each(SUPPORTED_LANGUAGE_CODES)('returns the detected code when supported (%s)', async (code) => {
+    guessDetectSpy.mockImplementation((_text: string, cb: (lang: string) => void) => cb(code))
+
+    await expect(detectLanguage('sample text')).resolves.toBe(code)
   })
 
-  it('should detect the language of input string', async () => {
-    for (const sentence of englishSentences) {
-      const lang = await detectLanguage(sentence)
-      expect(lang).toBe('en')
-    }
+  it('falls back to en when the detected code is not supported', async () => {
+    guessDetectSpy.mockImplementation((_text: string, cb: (lang: string) => void) => cb('xx'))
 
-    for (const sentence of chineseSentences) {
-      const lang = await detectLanguage(sentence)
-      expect(lang).toBe('zh')
-    }
+    await expect(detectLanguage('unknown language')).resolves.toBe('en')
+  })
 
-    for (const sentence of japaneseSentences) {
-      const lang = await detectLanguage(sentence)
-      expect(lang).toBe('ja')
-    }
+  it('returns the language display name or defaults to English', () => {
+    expect(getLanguageName('zh')).toBe('简体中文')
+    expect(getLanguageName('en')).toBe('English')
+    expect(getLanguageName('xx' as LanguageCode)).toBe('English')
+  })
 
-    for (const sentence of koreanSentences) {
-      const lang = await detectLanguage(sentence)
-      expect(lang).toBe('ko')
-    }
+  afterAll(() => {
+    guessDetectSpy.mockRestore()
   })
 })
diff --git a/utils/language/detect.ts b/utils/language/detect.ts
@@ -10,6 +10,30 @@ export const SUPPORTED_LANGUAGES = [
     name: 'Español',
     code: 'es',
   },
+  {
+    name: 'Français',
+    code: 'fr',
+  },
+  {
+    name: 'Deutsch',
+    code: 'de',
+  },
+  {
+    name: 'Português',
+    code: 'pt',
+  },
+  {
+    name: 'Italiano',
+    code: 'it',
+  },
+  {
+    name: 'Русский',
+    code: 'ru',
+  },
+  {
+    name: 'Nederlands',
+    code: 'nl',
+  },
   {
     name: '日本語',
     code: 'ja',
@@ -22,6 +46,22 @@ export const SUPPORTED_LANGUAGES = [
     code: 'zh',
     name: '简体中文',
   },
+  {
+    code: 'zh-TW',
+    name: '繁體中文',
+  },
+  {
+    code: 'tr',
+    name: 'Türkçe',
+  },
+  {
+    code: 'vi',
+    name: 'TiếngViệt',
+  },
+  {
+    code: 'th',
+    name: 'ภาษาไทย',
+  },
 ] as const
 
 export const SUPPORTED_LANGUAGE_CODES = SUPPORTED_LANGUAGES.map((lang) => lang.code)
