import type { StringMap } from '@goatlab/js-utils';
import { Lang } from './translation.model';
export interface UserLanguageOptions {
    language: Lang | null;
}
declare class TranslationService {
    private initialized;
    initialize(): void;
    private loadLocaleSync;
    getLocale(lang: Lang | null): StringMap;
    getLocaleMap(): Record<Lang, StringMap>;
    missingKey(key: string): string;
    translate(key: string, acc: UserLanguageOptions, args?: any): string;
    /**
     * Implementation based on static ./src/lang/*.json files
     */
    translateIfExists(key: string, user: UserLanguageOptions, args?: {}): string | undefined;
    formatResult(key: string, text: string, args?: {}): string;
    reportMissing(_key: string, opt: UserLanguageOptions): void;
    /**
     * Based on: https://nodejs.org/api/intl.html#intl_detecting_internationalization_support
     */
    hasFullICU(): boolean;
    /**
     * Clear cache and reinitialize - useful for testing
     */
    clearCacheAndReinitialize(): void;
}
export declare const translationService: TranslationService;
export declare function tr(key: string, user: UserLanguageOptions, args?: {}): string;
export declare function trIfExists(key: string, user: UserLanguageOptions, args?: {}): string | undefined;
export {};