import { en as enBase, zh as zhBase } from "@vmall/shared/locales";
import { enExtra, zhExtra } from "./locales-extra";

function deepMerge<T extends Record<string, unknown>>(base: T, extra: T): T {
  const out: Record<string, unknown> = { ...base };
  for (const [k, v] of Object.entries(extra)) {
    const b = out[k];
    out[k] =
      b && v && typeof b === "object" && typeof v === "object"
        ? deepMerge(b as Record<string, unknown>, v as Record<string, unknown>)
        : v;
  }
  return out as T;
}

export default defineI18nConfig(() => ({
  legacy: false,
  locale: "en",
  fallbackLocale: "en",
  messages: {
    en: deepMerge(enBase, enExtra),
    zh: deepMerge(zhBase, zhExtra),
  },
}));