52 lines
1.2 KiB
TypeScript
52 lines
1.2 KiB
TypeScript
export const SUPPORTED_LOCALES = ["zh-CN", "en-US", "ru-RU"] as const
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export type AppLocale = (typeof SUPPORTED_LOCALES)[number]
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export const DEFAULT_LOCALE: AppLocale = "en-US"
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const LOCALE_ALIASES: Record<string, AppLocale> = {
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zh: "zh-CN",
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"zh-cn": "zh-CN",
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zh_cn: "zh-CN",
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"zh-hans": "zh-CN",
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en: "en-US",
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"en-us": "en-US",
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en_us: "en-US",
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ru: "ru-RU",
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"ru-ru": "ru-RU",
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ru_ru: "ru-RU",
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}
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export function normalizeLocale(value: string | null | undefined): AppLocale {
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return normalizeSupportedLocale(value) ?? DEFAULT_LOCALE
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}
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function normalizeSupportedLocale(
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value: string | null | undefined
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): AppLocale | null {
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if (!value) {
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return null
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}
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const key = value.trim().toLowerCase()
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return LOCALE_ALIASES[key] ?? null
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}
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export function isSupportedLocale(
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value: string | null | undefined
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): value is AppLocale {
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if (!value) {
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return false
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}
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return SUPPORTED_LOCALES.includes(value as AppLocale)
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}
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let configuredLocale: AppLocale = DEFAULT_LOCALE
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export function readStoredLocale(): AppLocale {
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return configuredLocale
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}
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export function configureLocale(locale: string | null | undefined): AppLocale {
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configuredLocale = normalizeLocale(locale)
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return configuredLocale
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}
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