Thomas Camlong
33293ba1cf
- cache-invalidation: extract isExpectedRevalidateError helper - integration-data-cache: flatten early-return chain, extract eviction - redis-handler: extract StoredEntry type, readStreamBody, ensureConnected - svg-purify: single getOwnPropertyDescriptor lookup per prop - session-scoped-providers: simplify auth flow - retryable-loader: use function declarations - translation/request: replace spread-in-reduce with for loop
52 lines
1.9 KiB
TypeScript
52 lines
1.9 KiB
TypeScript
import deepmerge from "deepmerge";
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import { getRequestConfig } from "next-intl/server";
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import type { TranslationObject } from ".";
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import { fallbackLocale, isLocaleSupported } from ".";
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import type { SupportedLanguage } from "./config";
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import { createLanguageMapping } from "./mapping";
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// ponytail: module-level memo — one merged object per locale used (~250-400 KB each).
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// Ceiling: ~2 MB for 5 active locales. Upgrade: evict when size > 8.
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const mergedMessages = new Map<SupportedLanguage, Promise<TranslationObject>>();
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function loadMessagesAsync(locale: SupportedLanguage): Promise<TranslationObject> {
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const existing = mergedMessages.get(locale);
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if (existing) return existing;
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const promise = (async () => {
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const languageMap = createLanguageMapping();
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const current = removeEmptyTranslations((await languageMap[locale]()).default) as TranslationObject;
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if (locale === fallbackLocale) return current;
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const fallback = (await languageMap[fallbackLocale]()).default;
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return deepmerge(fallback, current) as TranslationObject;
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})();
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mergedMessages.set(locale, promise);
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void promise.catch(() => {
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if (mergedMessages.get(locale) === promise) mergedMessages.delete(locale);
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});
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return promise;
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}
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export default getRequestConfig(async ({ requestLocale }) => {
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const requested = await requestLocale;
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const locale: SupportedLanguage =
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requested && isLocaleSupported(requested) ? (requested as SupportedLanguage) : fallbackLocale;
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return { locale, messages: await loadMessagesAsync(locale) };
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});
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function removeEmptyTranslations(translations: Record<string, unknown>): Record<string, unknown> {
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const result: Record<string, unknown> = {};
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for (const [key, value] of Object.entries(translations)) {
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if (typeof value === "string") {
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if (value.trim() !== "") result[key] = value;
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continue;
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}
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result[key] = removeEmptyTranslations(value as Record<string, unknown>);
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}
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return result;
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}
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