import { type AppLocale, defaultLocale, isAppLocale } from "@cms/i18n"
import { cookies } from "next/headers"

import type { AdminMessages } from "./messages"
import { ADMIN_LOCALE_COOKIE } from "./shared"

export function resolveAdminLocaleFromCookieValue(value: string | undefined): AppLocale {
  if (value && isAppLocale(value)) {
    return value
  }

  return defaultLocale
}

export async function resolveAdminLocale(): Promise<AppLocale> {
  const cookieStore = await cookies()
  const value = cookieStore.get(ADMIN_LOCALE_COOKIE)?.value
  return resolveAdminLocaleFromCookieValue(value)
}

export async function getAdminMessages(locale: AppLocale): Promise<AdminMessages> {
  return (await import(`../messages/${locale}.json`)).default as AdminMessages
}