import { FileInfo, ScraperConfig, ScraperResponse, ProgressCallback, DownloadResult } from '../types';
/**
 * The core class for the Terabox Downloader and Scraper library.
 * It handles the entire process: link parsing, API interaction, and file downloading.
 */
export declare class TeraboxScraper {
    private config;
    private httpClient;
    private readonly TERABOX_DOMAIN;
    private readonly API_INFO_URL;
    /**
     * Initializes the TeraboxScraper with configuration.
     * @param config The configuration object including the required Terabox cookie.
     */
    constructor(config: ScraperConfig);
    /**
     * Standardized error creation utility.
     * @param code Error code.
     * @param message Error message.
     * @param originalError Optional original error object.
     * @returns A ScraperResponse with success: false and the error details.
     */
    private createErrorResponse;
    /**
     * Extracts the share key (surl) from a Terabox share link.
     * @param shareLink The full Terabox share URL.
     * @returns The share key (surl) or null if invalid.
     */
    private extractShareKey;
    /**
     * Fetches file information and the direct download link from a Terabox share URL.
     * This is a two-step process:
     * 1. Scrape the initial share page to get hidden parameters (shareid, uk, sign, timestamp).
     * 2. Use the parameters to call the internal Terabox API for file details and the download link.
     * @param shareLink The Terabox share link (e.g., https://www.terabox.app/s/...).
     * @returns A promise that resolves to a ScraperResponse containing FileInfo or an error.
     */
    getFileInfo(shareLink: string): Promise<ScraperResponse<FileInfo>>;
    /**
     * Downloads a file using the FileInfo object.
     * Implements robust progress tracking and stream-based downloading for efficiency.
     * @param fileInfo The FileInfo object containing the downloadLink.
     * @param savePath The local path to save the file (directory or full file path).
     * @param progressCallback Optional function to track download progress.
     * @returns A promise that resolves to a ScraperResponse containing DownloadResult or an error.
     */
    downloadFile(fileInfo: FileInfo, savePath: string, progressCallback?: ProgressCallback): Promise<ScraperResponse<DownloadResult>>;
}