/**
 * Auto-Discovery Engine
 *
 * Automatically discovers and sorts Step files and Async Task files.
 *
 * Key features:
 * 1. File scanning: Scans all .js files in specified directory
 * 2. Pattern validation: Validates if filename matches pattern (/^\d+-.*\.js$/)
 * 3. Number extraction: Extracts number part from filename
 * 4. Size-based sorting: Sorts in ascending order by number (100 < 200 < 300)
 * 5. Duplicate validation: Checks for duplicate numbers
 */
import { StepInfo, AsyncTaskInfo, AutoDiscoveryOptions } from './types';
/**
 * Auto-Discovery Engine class
 */
export declare class AutoDiscovery {
    private readonly options;
    constructor(options: AutoDiscoveryOptions);
    /**
     * Discover and sort Step files
     *
     * @returns Sorted Step list
     * @throws {Error} When directory does not exist or duplicate numbers found
     */
    discoverSteps(): Promise<StepInfo[]>;
    /**
     * Discover Async Task files
     *
     * @returns Async Task list
     */
    discoverAsyncTasks(): Promise<AsyncTaskInfo[]>;
    /**
     * Validate no duplicates
     *
     * @param steps - Step list
     * @throws {Error} When duplicate numbers found
     */
    private validateNoDuplicates;
    /**
     * Load Step function
     *
     * @param filePath - File path
     * @returns Step function
     */
    private loadStepFunction;
    /**
     * Load Async Task function
     *
     * @param filePath - File path
     * @returns Async Task function
     */
    private loadAsyncTaskFunction;
}
/**
 * Discover and sort Steps (helper function)
 *
 * @param directory - Steps directory path
 * @param pattern - Filename pattern (default: /^\d+-.*\.(js|ts)$/)
 * @param allowDuplicates - Allow duplicate numbers (default: false)
 * @returns Sorted Step list
 */
export declare function discoverSteps(directory: string, pattern?: RegExp, allowDuplicates?: boolean): Promise<StepInfo[]>;
/**
 * Discover Async Tasks (helper function)
 *
 * @param directory - Async tasks directory path
 * @returns Async Task list
 */
export declare function discoverAsyncTasks(directory: string): Promise<AsyncTaskInfo[]>;
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