import fs from 'fs';
import type { Package } from '../lib/packageUtil.js';
import type { AppContext } from '../types/context.js';
import type { MetadataDefinition } from '../types/metadata.js';
export interface FileStats {
    atime: Date | undefined;
    mtime: Date | undefined;
}
/**
 * Updates file stats with the latest access and modification times
 * @param fileStats Current file stats to update
 * @param stats File system stats to compare against
 * @returns Updated file stats with latest atime and mtime
 */
export declare function updateFileStats(fileStats: FileStats, stats: fs.Stats | undefined): FileStats;
interface CombineConfig {
    ctx: AppContext;
    metadataDefinition: MetadataDefinition;
    sourceDir: string;
    targetDir: string;
    metaDir: string;
    sequence: number;
    total: number;
    addPkg: Package;
    desPkg: Package;
}
export declare class Combine {
    #private;
    ctx: AppContext;
    private _metadataDefinition;
    sourceDir: string;
    targetDir: string;
    private _metaDir;
    private _sequence;
    total: number;
    addPkg: Package;
    desPkg: Package;
    constructor(config: CombineConfig);
    get metadataDefinition(): MetadataDefinition;
    set metadataDefinition(definition: MetadataDefinition);
    get metaDir(): string;
    set metaDir(metaDir: string);
    get sequence(): number;
    set sequence(sequence: number);
    combine(): Promise<boolean | string>;
}
/**
 * Sorts a JSON array by a specified key
 * @param json JSON value (should be an array)
 * @param key Key to sort by
 * @returns Sorted JSON array
 */
export declare function sortJSON(json: unknown, key: string | undefined): unknown;
/**
 * Compares two keys for sorting based on xmlOrder
 * @param a First key
 * @param b Second key
 * @param xmlOrder Array defining the order of keys
 * @returns Comparison result: -1 if a < b, 1 if a > b, 0 if equal
 */
export declare function compareKeysForXmlOrder(a: string, b: string, xmlOrder: string[] | undefined): number;
export {};
//# sourceMappingURL=combine.d.ts.map