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better language detection

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This commit is contained in:
Nathan 2026-02-09 13:31:24 -05:00
parent aa16e2a844
commit 5b52d9c5cc
1 changed files with 29 additions and 1 deletions
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30
frontend/src/lib/i18n/index.ts
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@ -8,11 +8,39 @@ export type Translations = typeof en;
const translations: Record<Locale, Translations> = { en, es };
const SUPPORTED_LOCALES: Locale[] = ['en', 'es'];
function matchLocale(lang: string): Locale | null {
const lower = lang.toLowerCase();
// Exact match
if (SUPPORTED_LOCALES.includes(lower as Locale)) return lower as Locale;
// Match language prefix (e.g. es-MX, es-AR, es-ES -> es)
const prefix = lower.split('-')[0];
if (SUPPORTED_LOCALES.includes(prefix as Locale)) return prefix as Locale;
return null;
}
function getBrowserLocale(): Locale | null {
if (typeof window === 'undefined') return null;
// Check navigator.languages first (ordered by preference)
if (navigator.languages?.length) {
for (const lang of navigator.languages) {
const matched = matchLocale(lang);
if (matched) return matched;
}
}
// Fallback to navigator.language
if (navigator.language) {
return matchLocale(navigator.language);
}
return null;
}
function getInitialLocale(): Locale {
if (typeof window === 'undefined') return 'en';
const stored = localStorage.getItem('locale');
if (stored === 'en' || stored === 'es') return stored;
return 'en';
return getBrowserLocale() || 'en';
}
function createLocaleStore() {