mirror of
https://github.com/elyby/accounts-frontend.git
synced 2024-12-05 21:19:12 +05:30
99 lines
1.9 KiB
TypeScript
99 lines
1.9 KiB
TypeScript
import { IntlShape, createIntl, createIntlCache } from 'react-intl';
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import captcha from 'app/services/captcha';
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import locales from 'app/i18n';
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import intlPolyfill from './intlPolyfill';
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export const SUPPORTED_LANGUAGES = Object.keys(locales);
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export const DEFAULT_LANGUAGE = 'en';
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function getBrowserPreferredLanguages(): string[] {
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return []
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.concat(
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// @ts-ignore
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navigator.languages || [],
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)
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.concat(navigator.language || []);
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}
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function detectLanguage(
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userLanguages: string[],
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availableLanguages: string[],
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defaultLanguage: string,
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): string {
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return (
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userLanguages
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.map(lang => (lang.split('-').shift() || '').toLowerCase())
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.find(lang => availableLanguages.indexOf(lang) !== -1) || defaultLanguage
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);
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}
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const cache = createIntlCache();
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let intl: IntlShape;
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class I18N {
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detectLanguage(lang: string = ''): string {
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return detectLanguage(
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[lang].concat(getBrowserPreferredLanguages()).filter(item => !!item),
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SUPPORTED_LANGUAGES,
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DEFAULT_LANGUAGE,
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);
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}
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getIntl(): IntlShape {
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if (!intl) {
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intl = createIntl(
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{
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locale: 'en',
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messages: {},
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},
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cache,
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);
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}
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return intl;
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}
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async changeLocale(locale: string = DEFAULT_LANGUAGE): Promise<IntlShape> {
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const { messages } = await this.require(locale);
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captcha.setLang(locale);
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intl = createIntl(
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{
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locale,
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messages,
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},
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cache,
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);
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return intl;
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}
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async ensureIntl() {
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await intlPolyfill('en');
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}
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async require(
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locale: string,
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): Promise<{
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locale: string;
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messages: { [key: string]: string };
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}> {
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const [{ default: messages }] = await Promise.all([
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import(
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/* webpackChunkName: "locale-[request]" */ `app/i18n/${locale}.json`
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),
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intlPolyfill(locale),
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]);
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return {
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locale,
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messages,
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};
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}
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}
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export default new I18N();
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