Arnaud
355ba944ad
getMarketingLocale() only ever read the marketing_locale cookie, defaulting anonymous first-time visitors to English until they manually used the language switcher — even though the switcher and a full French translation already existed. Now falls back to parsing Accept-Language when no cookie is set; an explicit switcher choice still wins on every later visit. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
50 lines
2.2 KiB
TypeScript
50 lines
2.2 KiB
TypeScript
import { headers, cookies } from "next/headers";
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import { auth } from "@/lib/auth/server";
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import type { Locale } from "@/lib/i18n/provider";
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import { MARKETING_LOCALE_COOKIE } from "@/lib/marketing-locale-cookie";
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export { MARKETING_LOCALE_COOKIE };
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/**
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* Locale for the public marketing pages — cookie-based, not tied to a user
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* account (visitors there have no session). Separate from the authenticated
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* app's locale system (`lib/i18n/provider.tsx`'s `useLocale`/`setLocale`),
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* which persists to `users.locale` via an authenticated PATCH that would
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* just 401 for an anonymous visitor and revert the UI.
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*/
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/** Parses an `Accept-Language` header and returns the first supported
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* locale it lists, in the browser's stated preference order — ignoring
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* unsupported languages (e.g. "de", "es") rather than stopping at them. */
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function localeFromAcceptLanguage(header: string | null): Locale | null {
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if (!header) return null;
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const tags = header
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.split(",")
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.map((part) => part.split(";")[0]!.trim().toLowerCase())
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.filter(Boolean);
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for (const tag of tags) {
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if (tag.startsWith("fr")) return "fr";
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if (tag.startsWith("en")) return "en";
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}
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return null;
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}
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export async function getMarketingLocale(): Promise<Locale> {
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const store = await cookies();
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const cookieValue = store.get(MARKETING_LOCALE_COOKIE)?.value;
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if (cookieValue === "fr" || cookieValue === "en") return cookieValue;
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// No explicit choice saved yet (first visit, or cookies cleared) — honor
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// the visitor's browser language instead of always defaulting to English.
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const headerStore = await headers();
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return localeFromAcceptLanguage(headerStore.get("accept-language")) ?? "en";
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}
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/** A logged-in visitor's own saved locale wins (matches what they see
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* everywhere else in the app); otherwise the marketing cookie. */
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export async function getEffectiveMarketingLocale(): Promise<Locale> {
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const session = await auth.api.getSession({ headers: await headers() }).catch(() => null);
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const sessionLocale = (session?.user as { locale?: string } | undefined)?.locale;
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if (sessionLocale === "en" || sessionLocale === "fr") return sessionLocale;
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return getMarketingLocale();
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}
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