afb83f4563
- Implement runtime i18n using MutationObserver for automatic DOM translation
- Add language switcher dropdown in dashboard header (EN/VI/ZH)
- Support 3 languages: English (default), Tiếng Việt, 简体中文
- Add translation files: vi.json (197 entries), zh-CN.json (513 entries, cleaned)
- Translate dashboard UI: sidebar menu, header, settings, MITM page
- Use cookie-based locale persistence with /api/locale endpoint
- Zero component changes required - translations applied at runtime
- Fix Header flicker on route change with key={pathname}
Co-authored-by: eachann <each1024@qq.com>
Based on PR #247 from decolua/9router with runtime approach
Made-with: Cursor
31 lines
825 B
JavaScript
31 lines
825 B
JavaScript
import { cookies } from "next/headers";
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import { NextResponse } from "next/server";
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import { LOCALE_COOKIE, normalizeLocale, isSupportedLocale } from "@/i18n/config";
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export async function POST(request) {
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try {
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const { locale } = await request.json();
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if (!locale || !isSupportedLocale(locale)) {
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return NextResponse.json(
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{ error: "Invalid locale" },
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{ status: 400 }
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);
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}
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const normalized = normalizeLocale(locale);
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const cookieStore = await cookies();
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cookieStore.set(LOCALE_COOKIE, normalized, {
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path: "/",
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maxAge: 60 * 60 * 24 * 365, // 1 year
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});
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return NextResponse.json({ success: true, locale: normalized });
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} catch (error) {
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return NextResponse.json(
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{ error: "Failed to set locale" },
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{ status: 500 }
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);
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}
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}
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