import { type ReadFileSystem, type ProgressCallback, type ReadSource } from './file-system';
/**
 * Metadata for a zip file entry.
 */
type ZipEntry = {
    name: string;
    compressedSize: number;
    uncompressedSize: number;
    offset: number;
    method: number;
};
/**
 * Virtual filesystem for reading files from a zip archive.
 * Wraps any ReadSource and provides memory-efficient streaming access.
 */
declare class ZipReadFileSystem implements ReadFileSystem {
    private source;
    private entries;
    private parsePromise;
    private closed;
    constructor(source: ReadSource);
    /**
     * Parse the central directory from the zip file.
     * Called lazily on first createSource() or list() call.
     * @returns Map of entry names to ZipEntry metadata
     */
    private parseDirectory;
    /**
     * Get the data offset for an entry by reading its local header.
     * @param entry - Zip entry metadata
     * @returns Byte offset where entry data begins
     */
    private getDataOffset;
    createSource(filename: string, _progress?: ProgressCallback): Promise<ReadSource>;
    /**
     * List all entries in the zip file.
     * @returns Array of entry names
     */
    list(): Promise<string[]>;
    /**
     * Get entry metadata.
     * @param filename - Entry name
     * @returns Entry metadata or undefined if not found
     */
    getEntry(filename: string): Promise<ZipEntry | undefined>;
    /**
     * Close the zip filesystem and underlying source.
     */
    close(): void;
}
export { ZipReadFileSystem, type ZipEntry };