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Refactor code structure for improved readability and maintainability

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shuaiplus
2026-04-29 03:23:04 +08:00
parent 29a846c562
commit 85147e1569
14 changed files with 2748 additions and 881 deletions
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webapp/src/lib/i18n.ts
+50 -25
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@@ -1,63 +1,80 @@
export type Locale = 'en' | 'zh-CN';
export type Locale = 'en' | 'zh-CN' | 'zh-TW' | 'ru';
const LOCALE_STORAGE_KEY = 'nodewarden.locale';
type MessageTable = Record<string, string>;
export const AVAILABLE_LOCALES: readonly { value: Locale; label: string }[] = [
{ value: 'en', label: 'English' },
{ value: 'zh-CN', label: '简体中文' },
{ value: 'zh-TW', label: '繁體中文' },
{ value: 'ru', label: 'Русский' },
];
let locale: Locale = resolveInitialLocale();
let activeMessages: MessageTable = {};
let englishMessages: MessageTable | null = null;
const loadedMessages = new Map<Locale, MessageTable>();
function isLocale(value: unknown): value is Locale {
return AVAILABLE_LOCALES.some((item) => item.value === value);
}
function resolveInitialLocale(): Locale {
try {
const saved = localStorage.getItem(LOCALE_STORAGE_KEY);
if (saved === 'en' || saved === 'zh-CN') return saved;
if (isLocale(saved)) return saved;
} catch {
// ignore storage errors
}
if (typeof navigator !== 'undefined') {
const langs = Array.isArray(navigator.languages) ? navigator.languages : [navigator.language];
for (const lang of langs) {
if (String(lang || '').toLowerCase().startsWith('zh')) return 'zh-CN';
const normalized = String(lang || '').toLowerCase();
if (normalized === 'zh-tw' || normalized === 'zh-hk' || normalized === 'zh-mo' || normalized.includes('hant')) return 'zh-TW';
if (normalized.startsWith('zh')) return 'zh-CN';
if (normalized.startsWith('ru')) return 'ru';
}
}
return 'en';
}
async function loadEnglishMessages(): Promise<MessageTable> {
if (englishMessages) return englishMessages;
const mod = await import('./i18n/locales/en');
englishMessages = mod.default;
loadedMessages.set('en', englishMessages);
return englishMessages;
}
async function loadLocaleMessages(next: Locale): Promise<MessageTable> {
const cached = loadedMessages.get(next);
if (cached) return cached;
if (next === 'en') {
return loadEnglishMessages();
}
const mod = next === 'zh-CN'
? await import('./i18n/locales/zh-CN')
: next === 'zh-TW'
? await import('./i18n/locales/zh-TW')
: next === 'ru'
? await import('./i18n/locales/ru')
: await import('./i18n/locales/en');
loadedMessages.set(next, mod.default);
return mod.default;
}
const [base, overridesMod] = await Promise.all([
loadEnglishMessages(),
import('./i18n/locales/zh-CN'),
]);
const merged = { ...base, ...overridesMod.default };
loadedMessages.set(next, merged);
return merged;
async function loadFallbackMessages(): Promise<MessageTable> {
const cached = loadedMessages.get('en');
if (cached) return cached;
const mod = await import('./i18n/locales/en');
loadedMessages.set('en', mod.default);
return mod.default;
}
export type I18nParams = Record<string, string | number | null | undefined>;
export async function initI18n(): Promise<void> {
activeMessages = await loadLocaleMessages(locale);
try {
activeMessages = await loadLocaleMessages(locale);
} catch (error) {
console.error('Failed to load locale, falling back to English:', error);
locale = 'en';
activeMessages = await loadFallbackMessages();
}
}
export function t(key: string, params?: I18nParams): string {
const template = activeMessages[key] ?? englishMessages?.[key] ?? key;
const template = activeMessages[key] ?? key;
if (!params) return template;
return template.replace(/\{(\w+)\}/g, (_, name: string) => String(params[name] ?? ''));
}
@@ -67,8 +84,16 @@ export function getLocale(): Locale {
}
export async function setLocale(next: Locale): Promise<void> {
let nextMessages: MessageTable;
try {
nextMessages = await loadLocaleMessages(next);
} catch (error) {
console.error('Failed to load selected locale, falling back to English:', error);
next = 'en';
nextMessages = await loadFallbackMessages();
}
locale = next;
activeMessages = await loadLocaleMessages(next);
activeMessages = nextMessages;
try {
localStorage.setItem(LOCALE_STORAGE_KEY, next);
} catch {