migrate to typescript

src/locales/index.ts

@@ -0,0 +1,36 @@
+import en from './en.json';
+import vi from './vi.json';
+import zhHans from './zh_Hans.json';
+
+interface LanguageInfo {
+    name: string,
+    displayName: string,
+    alternativeLanguageTag: string,
+    aliases?: string[],
+    content: object
+}
+
+export const defaultLanguage: string = 'en';
+
+// To add new languages, please refer to https://ezbookkeeping.mayswind.net/translating
+export const allLanguages: Record<string, LanguageInfo> = {
+    'en': {
+        name: 'English',
+        displayName: 'English',
+        alternativeLanguageTag: 'en',
+        content: en
+    },
+    'vi': {
+        name: 'Vietnamese',
+        displayName: 'Tiếng Việt',
+        alternativeLanguageTag: 'vi-VN',
+        content: vi
+    },
+    'zh-Hans': {
+        name: 'Simplified Chinese',
+        displayName: '简体中文',
+        alternativeLanguageTag: 'zh-CN',
+        aliases: ['zh-CHS', 'zh-CN', 'zh-SG'],
+        content: zhHans
+    }
+};