import { type CacheControlOptions } from '@i18n-micro/utils/cache-control';
export interface LoadOptions {
    apiBaseUrl: string;
    baseURL: string;
    apiBaseClientHost?: string;
    apiBaseServerHost?: string;
    dateBuild?: string | number;
    routesLocaleLinks?: Record<string, string>;
}
export interface LoadResult {
    data: Record<string, unknown>;
    cacheKey: string;
}
declare class TranslationStorage {
    private cc;
    constructor();
    /**
     * Configure cache limits. Call once from plugin with config values.
     */
    configure(options: CacheControlOptions): void;
    /** Plain clone before freeze — SSR payload chunks may be Vue reactive proxies. */
    private freezePlainClone;
    private getCacheKey;
    private fetchTranslations;
    /**
     * Seed translation cache from SSR payload (`useState('i18n-ssr-chunks')`).
     * Called on client before the first fetch.
     */
    seedFromSsrChunks(chunks: Record<string, Record<string, unknown>>): void;
    /**
     * Synchronous cache check and retrieval.
     * Returns data if cached (and not expired), otherwise null.
     */
    getFromCache(locale: string, routeName?: string): LoadResult | null;
    /**
     * Load translations (with caching).
     * Returns data, cache key, and JSON for injection (server only).
     */
    load(locale: string, routeName: string | undefined, options: LoadOptions): Promise<LoadResult>;
    /**
     * Clear cache and metadata.
     */
    clear(): void;
}
export declare const translationStorage: TranslationStorage;
export {};