22 lines
956 B
TypeScript
22 lines
956 B
TypeScript
import type { NextRequest } from 'next/server';
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import { supportedLocales } from '@/lib/i18n/locales';
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import type { PBLProjectV2 } from '../types';
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const supportedLocaleCodes = new Set<string>(supportedLocales.map((locale) => locale.code));
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/** Sync `project.language` (BCP-47 fallback locale) with the user's
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* UI language. Does NOT touch `project.languageDirective` — the
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* classroom's content-language policy is authoritative for all
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* Planner / Instructor / Evaluator content and is never overwritten
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* by the UI locale header.
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*
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* Route-level sync closes the timing gap where the user clicks into
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* PBL before the Hero's client-side locale effect has published the
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* updated project. */
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export function applyRequestLocaleToProject(req: NextRequest, project: PBLProjectV2): void {
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const locale = req.headers.get('x-user-locale')?.trim();
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if (!locale || !supportedLocaleCodes.has(locale)) return;
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project.language = locale;
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}
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