zabudko-ruandClaude Opus 5.5
3489e0b816
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
20 lines
986 B
TypeScript
20 lines
986 B
TypeScript
import { isLocale } from '@barev/i18n';
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import { cookies, headers } from 'next/headers';
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import { redirect } from 'next/navigation';
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type SearchParams = Promise<Record<string, string | string[] | undefined>>;
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/** Адрес без языка → язык из cookie (выбор на лендинге) или Accept-Language; ?a= и UTM сохраняются */
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export async function redirectToLocale(searchParams: SearchParams, path = ''): Promise<never> {
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const [sp, c, h] = await Promise.all([searchParams, cookies(), headers()]);
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const saved = c.get('barev_lang')?.value;
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const accepted = (h.get('accept-language') ?? '')
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.split(',')
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.map((p) => p.split(';')[0]!.trim().split('-')[0]!.toLowerCase())
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.find(isLocale);
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const locale = isLocale(saved) ? saved : (accepted ?? 'ru');
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const qs = new URLSearchParams();
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for (const [k, v] of Object.entries(sp)) if (typeof v === 'string') qs.set(k, v);
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redirect(`/${locale}${path}${qs.size ? `?${qs}` : ''}`);
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}
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