import { Observable } from 'rxjs';
import { TourTranslations, TourLanguageConfig } from '../models/tour-i18n.model';
import * as i0 from "@angular/core";
export declare class TourI18nService {
    private currentLanguage;
    private customTranslations;
    private translations;
    private languageSubject;
    language$: Observable<string>;
    constructor();
    /**
     * Set the current language
     */
    setLanguage(languageCode: string): void;
    /**
     * Get the current language code
     */
    getCurrentLanguage(): string;
    /**
     * Get current language translations
     */
    getCurrentTranslations(): TourTranslations;
    /**
     * Get a specific translation
     */
    translate(key: keyof TourTranslations): string;
    /**
     * Get translated text with variable replacement
     */
    translateWithParams(key: keyof TourTranslations, params: {
        [key: string]: any;
    }): string;
    /**
     * Add or update custom translations for a language
     */
    addTranslations(languageCode: string, translations: TourTranslations): void;
    /**
     * Add multiple language translations at once
     */
    addMultipleTranslations(translations: TourLanguageConfig): void;
    /**
     * Get all available languages
     */
    getAvailableLanguages(): string[];
    /**
     * Check if a language is supported
     */
    isLanguageSupported(languageCode: string): boolean;
    /**
     * Reset to default translations
     */
    resetTranslations(): void;
    /**
     * Detect and set browser language
     */
    private detectBrowserLanguage;
    /**
     * Get RTL (Right-to-Left) status for current language
     */
    isRTL(): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<TourI18nService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<TourI18nService>;
}