import { zh } from './zh';
import { en } from './en';
import { hk } from './hk';

export type Locale = 'zh' | 'en' | 'hk';
export type TranslationKey = keyof typeof zh;

const translations: Record<Locale, typeof zh> = { zh, en, hk };

export function getTranslation(locale: Locale) {
  return translations[locale] || translations.zh;
}

// Replaces the old Astro `getLocaleFromUrl(url)` — locale is now derived
// from the browser pathname (zh at `/`, en at `/en/*`, hk at `/hk/*`).
export function getLocaleFromPathname(): Locale {
  if (typeof window === 'undefined') return 'zh';
  const p = window.location.pathname;
  if (p.startsWith('/en')) return 'en';
  if (p.startsWith('/hk')) return 'hk';
  return 'zh';
}

export function getLocalizedPath(path: string, locale: Locale): string {
  if (locale === 'en') {
    return `/en${path}`;
  }
  if (locale === 'hk') {
    return `/hk${path}`;
  }
  return path;
}