import { Observable } from "../observer/Observable";
import { ISO639_1 } from "../../domain/definitions/types/Country";
import { LanguageService } from "../LanguageService";
/**
 * Manages localized resources for specific locale codes with reactive capabilities.
 * @template T Resource structure type extending Record<string, string>.
 * @template LSupported Supported language codes extending ISO639_1.
 */
export declare class LocalizedResource<T extends Record<string, string>, LSupported extends ISO639_1> {
    /**
     * Maps language codes to their corresponding resources.
     */
    private readonly _resources;
    /**
     * Stores observable streams for resource properties.
     */
    private readonly _generatedObservables;
    /**
     * Service handling language-specific operations.
     */
    private readonly _languageService;
    /**
     * Dynamic mapping of resource properties to observable streams.
     */
    private readonly _resourceProxy;
    /**
     * Creates a new LocalizedResource instance.
     * @param {LanguageService<LSupported>} languageService Service providing language-specific functionality.
     */
    constructor(languageService: LanguageService<LSupported>);
    /**
     * Retrieves the resource proxy containing observable values.
     * @returns {Object} A proxy object mapping resource keys to their Observable streams.
     */
    get res(): {
        [K in keyof T]: Observable<string>;
    };
    /**
     * Associates a resource with a specific language code.
     * @param {LSupported} languageCode The language code for the resource.
     * @param {T} resource The resource object to be associated.
     */
    addResource(languageCode: LSupported, resource: T): void;
    /**
     * Creates or retrieves an observable for the specified resource key.
     * @param {keyof T} key The resource key to observe.
     * @returns {Observable<string>} An observable stream for the specified key.
     */
    private _getObservable;
    /**
     * Retrieves a localized value for a given key and language code.
     * Falls back to default language if the requested translation is unavailable.
     * @param {ISO639_1} code The language code to retrieve the value for.
     * @param {keyof T} key The resource key.
     * @returns {string} The localized value or an empty string if not found.
     */
    private _getKeyValue;
}