Initialize giscus

src/i18n/i18nKey.ts

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+enum I18nKey {
+  home = 'home',
+  about = 'about',
+  archive = 'archive',
+
+  tags = 'tags',
+  categories = 'categories',
+  recentPosts = 'recentPosts',
+
+  comments = 'comments',
+
+  untitled = 'untitled',
+  uncategorized = 'uncategorized',
+  noTags = 'noTags',
+
+  wordCount = 'wordCount',
+  wordsCount = 'wordsCount',
+  minuteCount = 'minuteCount',
+  minutesCount = 'minutesCount',
+  postCount = 'postCount',
+  postsCount = 'postsCount',
+
+  themeColor = 'themeColor',
+
+  more = 'more',
+
+  author = 'author',
+  publishedAt = 'publishedAt',
+  license = 'license',
+}
+
+export default I18nKey

src/i18n/languages/en.ts

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+import Key from '../i18nKey'
+import type { Translation } from '../translation'
+
+export const en: Translation = {
+  [Key.home]: 'Home',
+  [Key.about]: 'About',
+  [Key.archive]: 'Archive',
+
+  [Key.tags]: 'Tags',
+  [Key.categories]: 'Categories',
+  [Key.recentPosts]: 'Recent Posts',
+
+  [Key.comments]: 'Comments',
+
+  [Key.untitled]: 'Untitled',
+  [Key.uncategorized]: 'Uncategorized',
+  [Key.noTags]: 'No Tags',
+
+  [Key.wordCount]: 'word',
+  [Key.wordsCount]: 'words',
+  [Key.minuteCount]: 'minute',
+  [Key.minutesCount]: 'minutes',
+  [Key.postCount]: 'post',
+  [Key.postsCount]: 'posts',
+
+  [Key.themeColor]: 'Theme Color',
+
+  [Key.more]: 'More',
+
+  [Key.author]: 'Author',
+  [Key.publishedAt]: 'Published at',
+  [Key.license]: 'License',
+}

src/i18n/languages/ja.ts

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+import Key from '../i18nKey'
+import type { Translation } from '../translation'
+
+export const ja: Translation = {
+  [Key.home]: 'Home',
+  [Key.about]: 'About',
+  [Key.archive]: 'Archive',
+
+  [Key.tags]: 'タグ',
+  [Key.categories]: 'カテゴリ',
+  [Key.recentPosts]: '最近の投稿',
+
+  [Key.comments]: 'コメント',
+
+  [Key.untitled]: 'タイトルなし',
+  [Key.uncategorized]: 'カテゴリなし',
+  [Key.noTags]: 'タグなし',
+
+  [Key.wordCount]: '文字',
+  [Key.wordsCount]: '文字',
+  [Key.minuteCount]: '分',
+  [Key.minutesCount]: '分',
+  [Key.postCount]: '件の投稿',
+  [Key.postsCount]: '件の投稿',
+
+  [Key.themeColor]: 'テーマカラー',
+
+  [Key.more]: 'もっと',
+
+  [Key.author]: '作者',
+  [Key.publishedAt]: '公開日',
+  [Key.license]: 'ライセンス',
+}

src/i18n/languages/zh_CN.ts

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+import Key from '../i18nKey'
+import type { Translation } from '../translation'
+
+export const zh_CN: Translation = {
+  [Key.home]: '主页',
+  [Key.about]: '关于',
+  [Key.archive]: '归档',
+
+  [Key.tags]: '标签',
+  [Key.categories]: '分类',
+  [Key.recentPosts]: '最新文章',
+
+  [Key.comments]: '评论',
+
+  [Key.untitled]: '无标题',
+  [Key.uncategorized]: '未分类',
+  [Key.noTags]: '无标签',
+
+  [Key.wordCount]: '字',
+  [Key.wordsCount]: '字',
+  [Key.minuteCount]: '分钟',
+  [Key.minutesCount]: '分钟',
+  [Key.postCount]: '篇文章',
+  [Key.postsCount]: '篇文章',
+
+  [Key.themeColor]: '主题色',
+
+  [Key.more]: '更多',
+
+  [Key.author]: '作者',
+  [Key.publishedAt]: '发布于',
+  [Key.license]: '许可协议',
+}

src/i18n/languages/zh_TW.ts

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+import Key from '../i18nKey'
+import type { Translation } from '../translation'
+
+export const zh_TW: Translation = {
+  [Key.home]: '首頁',
+  [Key.about]: '關於',
+  [Key.archive]: '彙整',
+
+  [Key.tags]: '標籤',
+  [Key.categories]: '分類',
+  [Key.recentPosts]: '最新文章',
+
+  [Key.comments]: '評論',
+
+  [Key.untitled]: '無標題',
+  [Key.uncategorized]: '未分類',
+  [Key.noTags]: '無標籤',
+
+  [Key.wordCount]: '字',
+  [Key.wordsCount]: '字',
+  [Key.minuteCount]: '分鐘',
+  [Key.minutesCount]: '分鐘',
+  [Key.postCount]: '篇文章',
+  [Key.postsCount]: '篇文章',
+
+  [Key.themeColor]: '主題色',
+
+  [Key.more]: '更多',
+
+  [Key.author]: '作者',
+  [Key.publishedAt]: '發佈於',
+  [Key.license]: '許可協議',
+}

src/i18n/translation.ts

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+import { siteConfig } from '../config'
+import type I18nKey from './i18nKey'
+import { en } from './languages/en'
+import { ja } from './languages/ja'
+import { zh_CN } from './languages/zh_CN'
+import { zh_TW } from './languages/zh_TW'
+
+export type Translation = {
+  [K in I18nKey]: string
+}
+
+const defaultTranslation = en
+
+const map: { [key: string]: Translation } = {
+  en: en,
+  en_us: en,
+  en_gb: en,
+  en_au: en,
+  zh_cn: zh_CN,
+  zh_tw: zh_TW,
+  ja: ja,
+  ja_jp: ja,
+}
+
+export function getTranslation(lang: string): Translation {
+  return map[lang.toLowerCase()] || defaultTranslation
+}
+
+export function i18n(key: I18nKey): string {
+  const lang = siteConfig.lang || 'en'
+  return getTranslation(lang)[key]
+}