import { Readable } from 'stream';
export interface ExtractedManifest {
    id: string;
    name: string;
    publisher: string;
    version: string;
    dependencies?: {
        id: string;
        name: string;
        publisher: string;
        version: string;
    }[];
}
/**
 * Pure Node.js ZIP extractor for AL symbol packages
 * Uses yauzl library - 10x faster than PowerShell, no temp files needed
 */
export declare class ZipFallbackExtractor {
    /**
     * Extract SymbolReference.json from AL symbol package using yauzl
     */
    extractSymbolReference(symbolPackagePath: string): Promise<Readable>;
    /**
     * Extract manifest information from AL package (.app file)
     * Parses NavxManifest.xml from the ZIP archive
     */
    extractManifest(alPackagePath: string): Promise<ExtractedManifest>;
    /**
     * Parse NavxManifest.xml content to extract package info
     */
    private parseNavxManifest;
    /**
     * Find ZIP signature in AL package buffer
     * AL packages have 40-byte NAVX header followed by ZIP data
     */
    private findZipStart;
    /**
     * Find the true end of the ZIP data in the buffer.
     * Signed AL packages have an NXSB trailer (~10KB) after the ZIP data
     * that causes yauzl to reject the buffer with "Invalid comment length".
     * This method scans backwards for the EOCD record and calculates the
     * actual ZIP end position, excluding any trailing signature data.
     */
    private findZipEnd;
    /**
     * Check if yauzl is available
     */
    isUnzipAvailable(): Promise<boolean>;
}
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