import { LanguageSwitcherOptions, LanguageSwitcherInstance, LanguageConfig, TranslationData, InterpolationFunction, TranslationApiConfig, DetectedContent } from '../types/types';
export declare class LanguageSwitcher implements LanguageSwitcherInstance {
    currentLanguage: string;
    availableLanguages: LanguageConfig[];
    translations: Record<string, TranslationData>;
    onLanguageChange?: (_language: string) => void;
    private options;
    private interpolationFunction;
    private contentDetector;
    private translationService;
    private isAutoTranslating;
    private originalTexts;
    constructor(options: LanguageSwitcherOptions);
    /**
     * Set the current language
     */
    setLanguage(language: string): Promise<void>;
    /**
     * Start automatic translation
     */
    startAutoTranslation(): void;
    /**
     * Stop automatic translation
     */
    stopAutoTranslation(): void;
    /**
     * Translate the entire page
     */
    translatePage(targetLanguage?: string): Promise<void>;
    /**
     * Translate a specific element
     */
    translateElement(element: HTMLElement, targetLanguage?: string): Promise<void>;
    /**
     * Restore original text for all translated elements
     */
    restoreOriginalText(): void;
    /**
     * Get all detected content
     */
    getDetectedContent(): DetectedContent[];
    /**
     * Set translation API configuration
     */
    setTranslationApi(config: TranslationApiConfig): void;
    /**
     * Get translated text by key with optional parameter interpolation
     */
    getText(key: string, params?: Record<string, string | number>): string;
    /**
     * Add a new language configuration
     */
    addLanguage(language: string, config: LanguageConfig): void;
    /**
     * Add translations for a specific language
     */
    addTranslations(language: string, translations: TranslationData): void;
    /**
     * Remove a language and its translations
     */
    removeLanguage(language: string): void;
    /**
     * Check if current language is RTL
     */
    isRTL(): boolean;
    /**
     * Check if a specific language is RTL
     */
    isLanguageRTL(language: string): boolean;
    /**
     * Get document direction for current language
     */
    getDocumentDirection(): 'ltr' | 'rtl';
    /**
     * Update document direction based on current language
     */
    updateDocumentDirection(): void;
    /**
     * Get language configuration by language code
     */
    getLanguageConfig(language: string): LanguageConfig | undefined;
    /**
     * Set custom interpolation function
     */
    setInterpolationFunction(fn: InterpolationFunction): void;
    /**
     * Get all available language codes
     */
    getAvailableLanguageCodes(): string[];
    /**
     * Check if a language is available
     */
    isLanguageAvailable(language: string): boolean;
    /**
     * Get current language configuration
     */
    getCurrentLanguageConfig(): LanguageConfig | undefined;
    private translateNewContent;
    private translateContent;
    private applyTranslation;
    private restoreElementText;
    private extractElementText;
    private isTranslatableText;
    private getTranslationByKey;
    private defaultInterpolation;
    private persistLanguage;
    private loadPersistedLanguage;
}