30 lines
1 KiB
TypeScript
30 lines
1 KiB
TypeScript
// Tiny i18n harness. Russian primary, English fallback (BCP-47 prefix
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// match — any `en` variant). Bootstrap forwards `clientLanguage` from
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// the host; main.tsx can also call `createT()` without args before
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// bootstrap completes (falls back to navigator.language, then RU).
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import { RU, type StringKey } from './ru';
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import { EN } from './en';
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const interpolate = (s: string, vars?: Record<string, string>): string => {
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if (!vars) return s;
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return s.replace(/\{(\w+)\}/g, (_, k) => vars[k] ?? `{${k}}`);
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};
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const pickDict = (clientLanguage: string | undefined): Record<StringKey, string> => {
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const lang = (
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clientLanguage ||
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(typeof navigator !== 'undefined' ? navigator.language : '') ||
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'ru'
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).toLowerCase();
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return lang.startsWith('en') ? EN : RU;
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};
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export type T = (key: StringKey, vars?: Record<string, string>) => string;
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export const createT = (clientLanguage?: string): T => {
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const dict = pickDict(clientLanguage);
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return (key, vars) => interpolate(dict[key], vars);
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};
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export type { StringKey };
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