initial production version

src/lib/stores/language.svelte.ts

@@ -0,0 +1,63 @@
+import { translations, type LanguageCode } from '$lib/i18n/translations';
+import type { Translation } from '$lib/i18n/translations/en';
+
+const LANGUAGE_KEY = 'preferred-language';
+
+function getStoredLanguage(): LanguageCode {
+	if (typeof window === 'undefined') return 'en';
+
+	const stored = localStorage.getItem(LANGUAGE_KEY);
+	if (stored && (stored === 'en' || stored === 'da')) {
+		return stored as LanguageCode;
+	}
+
+	// Try to detect from browser
+	const browserLang = navigator.language.toLowerCase();
+	if (browserLang.startsWith('da')) {
+		return 'da';
+	}
+
+	return 'en';
+}
+
+class LanguageStore {
+	private _current = $state<LanguageCode>(getStoredLanguage());
+
+	get current(): LanguageCode {
+		return this._current;
+	}
+
+	set current(value: LanguageCode) {
+		this._current = value;
+		if (typeof window !== 'undefined') {
+			localStorage.setItem(LANGUAGE_KEY, value);
+		}
+	}
+
+	get t(): Translation {
+		return translations[this._current];
+	}
+
+	setLanguage(lang: LanguageCode) {
+		this.current = lang;
+	}
+}
+
+export const languageStore = new LanguageStore();
+
+// Helper function to get nested translation value
+export function t(path: string): string {
+	const keys = path.split('.');
+	let value: any = languageStore.t;
+
+	for (const key of keys) {
+		if (value && typeof value === 'object' && key in value) {
+			value = value[key];
+		} else {
+			console.warn(`Translation key not found: ${path}`);
+			return path;
+		}
+	}
+
+	return typeof value === 'string' ? value : path;
+}