feat: wire i18n services and shared UI

2026-07-19 03:06:56 +03:00
parent 805beccf95
commit 826410f53e
11 changed files with 1330 additions and 0 deletions
@@ -0,0 +1,92 @@
+import { cache } from "react";
+import {
+  DEFAULT_LOCALE,
+  flattenCatalog,
+  getBuiltInCatalog,
+  type I18nNamespace,
+} from "../../lib/i18n";
+import { getSqliteConnection } from "../db/client";
+import { instanceI18nSettings } from "../db/schema";
+import { createI18nRepository } from "../repositories/i18n";
+
+export type ResolvedCatalog = {
+  locale: string;
+  requestedLocale: string;
+  namespaces: I18nNamespace[];
+  catalogVersion: number;
+  fallbackChain: string[];
+  messages: Record<string, string>;
+};
+
+export const getResolvedCatalog = cache(
+  (
+    requestedLocale: string,
+    namespaces: readonly I18nNamespace[],
+    catalogVersion?: number,
+  ): ResolvedCatalog => {
+    const { db } = getSqliteConnection();
+    const repository = createI18nRepository(db);
+    const version = catalogVersion ?? ensureCatalogVersion(db);
+    const fallbackChain = resolveFallbackChain(repository, requestedLocale);
+    const messages: Record<string, string> = {};
+
+    for (const locale of [...fallbackChain].reverse()) {
+      const builtIn = getBuiltInCatalog(locale);
+      if (builtIn) {
+        Object.assign(messages, flattenCatalog(builtIn, namespaces));
+      }
+
+      for (const row of repository.listUiTranslations(locale, namespaces)) {
+        messages[`${row.namespace}.${row.translationKey}`] = row.value;
+      }
+    }
+
+    return {
+      locale: fallbackChain[0] ?? DEFAULT_LOCALE,
+      requestedLocale,
+      namespaces: [...namespaces],
+      catalogVersion: version,
+      fallbackChain,
+      messages,
+    };
+  },
+);
+
+export function getCatalogVersion(): number {
+  return ensureCatalogVersion(getSqliteConnection().db);
+}
+
+function ensureCatalogVersion(db: ReturnType<typeof getSqliteConnection>["db"]): number {
+  const repository = createI18nRepository(db);
+  repository.createSettingsIfMissing();
+  return db.select({ catalogVersion: instanceI18nSettings.catalogVersion }).from(instanceI18nSettings).get()
+    ?.catalogVersion ?? 1;
+}
+
+function resolveFallbackChain(
+  repository: ReturnType<typeof createI18nRepository>,
+  requestedLocale: string,
+): string[] {
+  const locales = new Map(repository.listLocales().map((locale) => [locale.code, locale]));
+  const settings = repository.getSettings();
+  const start = locales.has(requestedLocale)
+    ? requestedLocale
+    : settings?.defaultLocale ?? DEFAULT_LOCALE;
+  const chain: string[] = [];
+  const seen = new Set<string>();
+  let cursor: string | null = start;
+
+  while (cursor && !seen.has(cursor)) {
+    const locale = locales.get(cursor);
+    if (!locale || locale.status === "archived") break;
+    chain.push(cursor);
+    seen.add(cursor);
+    cursor = locale.fallbackLocale;
+  }
+
+  if (!chain.includes(DEFAULT_LOCALE)) {
+    chain.push(DEFAULT_LOCALE);
+  }
+
+  return chain;
+}