import { EventEmitter } from '@angular/core';
import { TranslateService } from '@ngx-translate/core';
import { ApiService } from '../../api/services/api.service';
import { Language } from '../models/language.model';
import { HeaderService } from '../../api/services/header.service';
export declare class LanguageService {
    private readonly translateService;
    private readonly apiService;
    private readonly headerService;
    /**
     * This event fires, when the current language is changed.
     *
     * @type {EventEmitter<string>}
     * @memberof LanguageService
     */
    onLangChanged: EventEmitter<string>;
    /**
     * This event fires, when the list of the available languages changed.
     *
     * @type {EventEmitter<void>}
     * @memberof LanguageService
     */
    onLanguagesListChanged: EventEmitter<void>;
    constructor(translateService: TranslateService, apiService: ApiService, headerService: HeaderService);
    /**
     * Factory of the service.
     *
     * @private
     * @memberof LanguageService
     */
    private readonly factory;
    /**
     * Default/Offline language.
     *
     * @private
     * @type {string}
     * @memberof LanguageService
     */
    private readonly storedDefaultLocale;
    /**
     * Default language code.
     *
     * @private
     * @type {string[]}
     * @memberof LanguageService
     */
    private readonly storedDefaultAvailableLanguages;
    /**
     * Default language code.
     *
     * @private
     * @type {string}
     * @memberof LanguageService
     */
    private storedDefaultLang;
    /**
     * Current language code.
     *
     * @private
     * @type {string}
     * @memberof LanguageService
     */
    private storedCurrentLang;
    /**
     * Name of the cookie.
     *
     * @private
     * @memberof LanguageService
     */
    private readonly languageCookieName;
    /**
     * List of the available languages. (Object array)
     *
     * @private
     * @type {Language[]}
     * @memberof LanguageService
     */
    private storedAvailableLanguages;
    /**
     * Gets the current Core language.
     *
     * @readonly
     * @type {string}
     * @memberof LanguageService
     */
    readonly currentLang: string;
    /**
     * Gets the default Core languge code.
     *
     * @readonly
     * @type {string}
     * @memberof LanguageService
     */
    readonly defaultLang: string;
    /**
     * Gets the current available languages.
     *
     * @readonly
     * @type {Language[]}
     * @memberof LanguageService
     */
    readonly availableLanguages: Language[];
    /**
     * Gets the current available language codes.
     *
     * @readonly
     * @memberof LanguageService
     */
    readonly availableKeys: string[];
    /**
     * Initialize the service.
     *
     * @memberof LanguageService
     */
    initialize(): void;
    /**
     * Initialize the service with the json.
     *
     * @memberof LanguageService
     */
    initializeOffline(lang: string): void;
    /**
     * Sets the default language.
     *
     * @param {string} lang
     * @memberof LanguageService
     */
    setDefaultLang(lang: string): void;
    /**
     * Sets the language.
     *
     * @param {string} lang
     * @param {boolean} [doStore=false] True, if you want to store the language in the cookie.
     * @memberof LanguageService
     */
    setLanguage(lang: string, doStore?: boolean): void;
    /**
     * Error handler.
     *
     * @private
     * @param {*} err
     * @memberof LanguageService
     */
    private handleErrors;
    /**
     * Api response handler.
     *
     * @private
     * @param {LanguageResponse[]} res
     * @memberof LanguageService
     */
    private handleLanguagesResponse;
    /**
     * Gets the languages from the Backend.
     *
     * @private
     * @returns {Observable<LanguageResponse[]>}
     * @memberof LanguageService
     */
    private getLanguages;
    private setDefaults;
    /**
     * Gets the language from the cookie.
     *
     * @private
     * @returns
     * @memberof LanguageService
     */
    private getLanguageFromCookie;
    /**
     * Sets the cookie for the language.
     *
     * @private
     * @param {string} value
     * @memberof LanguageService
     */
    private setLanguageToCookie;
}