import type { LocaleDefinition } from "@workspace/i18n"

export type AppLocale = "en" | "zh-Hans"
export type AppLocaleCountry = "CN" | "US"

export interface AppLocaleDefinition extends LocaleDefinition {
  country: AppLocaleCountry
  locale: AppLocale
}

export const DEFAULT_APP_LOCALE: AppLocale = "zh-Hans"

export const appLocales = [
  {
    country: "US",
    direction: "ltr",
    languageTag: "en-US",
    label: "English",
    locale: "en",
  },
  {
    country: "CN",
    direction: "ltr",
    languageTag: "zh-CN",
    label: "简体中文",
    locale: "zh-Hans",
  },
] as const satisfies readonly AppLocaleDefinition[]

export function isAppLocale(value: unknown): value is AppLocale {
  return appLocales.some((definition) => definition.locale === value)
}