Martin Dvorak
618ad5fb9c
English stays the default; Czech is a full translation. Only the app chrome is translated - notes and generated decks keep their own language, which is a core feature, not a setting. i18n - lib/i18n-dict.ts: flat en/cs dictionaries (441 keys each), translate() and translatePlural() with real Czech plural rules (1 sada / 2-4 sady / 5+ sad). English is the default and the fallback for a missing key. - lib/i18n.ts: browser store (freezmo.locale.v1), useI18n() hook, and the x-freezmo-locale header. The hook's t/plural are bound to the locale React is rendering with, so the first client render matches the server HTML and then re-renders in the stored language; module-level t is only for event handlers and non-React helpers. - <html lang> follows the choice (inline script + setLocale). UI - Settings -> Language segmented control (English / Cestina), plus an EN/CS button on the key gate for first run. - Every screen translated: sidebar, header, tab bar, library, deck cards, folder bar, create flow, all seven activities, study chrome, results, settings + health panel, API-key gate and help, install sheet, offline and the deck-not-found page. - Plural-aware counts everywhere (decks, folders, activities, runs, photos, documents, pages, words, wrong attempts). Server - API routes and guards (generate, grade, health, http-guard, rate-limit, ollama error mapping) answer in the request's language, so error cards and the health panel never fall back to English mid-sentence. Fixes - A hydration mismatch when a non-default locale was stored silently dropped the .dark class after hydration; render-time t() is now bound to the hook's locale (UploadScreen.describeExtraction, ResultsScreen.answerFor, DeckCard's folder fallback). - Bumped the service worker cache to freezmo-v4 for this deploy. Tests: i18n 27/27 (gate toggle, persistence, html lang, Czech plurals, settings switch) and a rebuilt regression suite 72/72 (English default, library, create, all 7 activity types, results, settings, install sheet, offline, PWA, security, Czech smoke).
56 lines
1.6 KiB
TypeScript
56 lines
1.6 KiB
TypeScript
"use client";
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import { useEffect, useState } from "react";
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import { useI18n } from "@/lib/i18n";
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import { cn } from "@/lib/utils";
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import { MoonIcon, SunIcon } from "@/components/icons";
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const STORAGE_KEY = "freezmo.theme";
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export function useTheme() {
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const [theme, setTheme] = useState<"light" | "dark">("light");
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useEffect(() => {
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const stored = window.localStorage.getItem(STORAGE_KEY);
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const isDark = stored
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? stored === "dark"
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: window.matchMedia("(prefers-color-scheme: dark)").matches;
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setTheme(isDark ? "dark" : "light");
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}, []);
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const apply = (next: "light" | "dark") => {
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setTheme(next);
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document.documentElement.classList.toggle("dark", next === "dark");
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try {
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window.localStorage.setItem(STORAGE_KEY, next);
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} catch {
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/* private mode */
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}
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};
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return { theme, toggle: () => apply(theme === "dark" ? "light" : "dark") };
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}
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export function ThemeToggle({ className }: { className?: string }) {
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const { theme, toggle } = useTheme();
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const { t } = useI18n();
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const dark = theme === "dark";
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return (
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<button
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type="button"
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onClick={toggle}
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aria-label={dark ? t("common.switchToLight") : t("common.switchToDark")}
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title={dark ? t("common.lightMode") : t("common.darkMode")}
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className={cn(
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"inline-flex size-9 items-center justify-center rounded-full text-[var(--text-muted)] transition hover:bg-[var(--hover)] hover:text-[var(--text)]",
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className,
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)}
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>
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<span aria-hidden>
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{dark ? <SunIcon className="size-5" /> : <MoonIcon className="size-5" />}
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</span>
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</button>
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);
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}
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