import { APIEncoding, APIVersion, NetworkType } from '../types';
import type { GCScript } from '../handlers/helpers';
/** Matches the wallet-side GCScript hash: SHA-512 over strict JSON. */
export declare const hashCode: (code: GCScript) => string;
export declare const validateBuildMsgArgs: (args: {
    apiVersion: APIVersion;
    network: NetworkType;
    encoding: APIEncoding;
    input: string;
}) => {
    apiVersion: APIVersion;
    network: NetworkType;
    encoding: APIEncoding;
    input: string;
};
export declare const getBaseUrl: (value?: string) => string | undefined;
/**
 * Validates a GameChanger wallet URL pattern.
 *
 * Requirements:
 * - Must be a valid absolute URL.
 * - Must contain the `{gcscript}` placeholder token.
 *
 * The `{gcscript}` placeholder is embedded by the URL encoding transport.
 *
 * @throws Error when the pattern is invalid.
 */
export declare const validateUrlPattern: (url: string) => string;
export type SerializableVirtualFile = {
    /** Runtime value is a Buffer; Uint8Array keeps declarations portable. */
    data: Uint8Array;
    mimeType?: string;
};
export type SerializableVirtualFileSystem = {
    [relativeFilePath: string]: SerializableVirtualFile;
};
/** Converts a Buffer into a base64 data URI. */
export declare const bufferToDataURI: (data: Uint8Array | ArrayBuffer | string, mimeType?: string) => string;
/** Converts a data URI into a Buffer. */
export declare const dataURIToBuffer: (dataURI: string) => Uint8Array;
/** Packs a virtual filesystem into a ZIP data URI using fflate. */
export declare const virtualFileSystemToZip: (files: SerializableVirtualFileSystem, mimeType?: string) => string;
/** Unpacks a ZIP data URI into a virtual filesystem using fflate. */
export declare const zipToVirtualFileSystem: (dataURI: string) => SerializableVirtualFileSystem;
/** Packs a virtual filesystem into a gzipped TAR data URI using fflate gzip. */
export declare const virtualFileSystemToTarGz: (files: SerializableVirtualFileSystem, mimeType?: string) => string;
/** Unpacks a gzipped TAR data URI into a virtual filesystem. */
export declare const tarGzToVirtualFileSystem: (dataURI: string) => SerializableVirtualFileSystem;