João Salavisa
38 lines
1.3 KiB
TypeScript
38 lines
1.3 KiB
TypeScript
import type { BootPayload } from "@/src/boot-payload";
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import { readLocaleCookie } from "./cookie";
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import { DEFAULT_LOCALE, normalizeLocale, type SupportedLocale } from "./index";
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/**
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* True when the pseudo QA locale should be offered in the switcher.
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*
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* The e2e harness serves a PRODUCTION frontend bundle, so `import.meta.env.PROD`
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* is true there and cannot tell an automated-test run from a real release. The
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* Go shell sets `runtime.nonProduction` for dev and e2e profiles, which is the
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* signal that actually answers the question.
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*/
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export function pseudoLocaleAvailable(payload: BootPayload | undefined): boolean {
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if (payload?.runtime?.nonProduction) return true;
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return !import.meta.env.PROD;
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}
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/**
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* Resolve the locale to activate before first paint. Precedence:
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* boot payload (set by the Go shell from the cookie) → cookie → default.
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* Any unknown value coerces to `en`.
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*/
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export function resolveInitialLocale(
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payload: BootPayload | undefined,
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doc: Document | undefined = typeof document === "undefined" ? undefined : document,
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): SupportedLocale {
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const fromPayload = payload?.runtime?.locale;
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if (fromPayload) {
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return normalizeLocale(fromPayload);
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}
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const fromCookie = doc ? readLocaleCookie(doc) : undefined;
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if (fromCookie) {
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return normalizeLocale(fromCookie);
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}
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return DEFAULT_LOCALE;
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}
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