/**
 * AWS CloudFront CDN Plugin
 * Automatically invalidates CloudFront CDN cache when files are deleted or updated
 *
 * @module @plyaz/storage/plugins/cloudfront-cdn
 *
 * @example
 * ```typescript
 * import { CloudFrontCDNPlugin } from '@plyaz/storage/plugins';
 *
 * const plugin = new CloudFrontCDNPlugin({
 *   distributionId: process.env.CLOUDFRONT_DISTRIBUTION_ID!,
 *   accessKeyId: process.env.AWS_ACCESS_KEY_ID!,
 *   secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY!,
 *   region: 'us-east-1',
 *   baseUrl: 'https://cdn.example.com',
 *   priority: 20,
 * });
 * ```
 */
import { BasePlugin } from '../../../base/BasePlugin';
import type { StoragePluginUploadResult, StoragePluginContext, StoragePluginHealth, StoragePluginDeleteResult, CloudFrontCDNPluginConfig, StorageCDNPluginStatistics } from '@plyaz/types/storage';
/**
 * CloudFront CDN Plugin
 * Automatically creates CloudFront invalidations when files change
 *
 * Features:
 * - Automatic invalidation on delete/update
 * - Batch processing (up to 1000 paths per invalidation)
 * - Retry logic
 * - Health monitoring
 */
export declare class CloudFrontCDNPlugin extends BasePlugin {
    private readonly distributionId;
    private readonly accessKeyId;
    private readonly secretAccessKey;
    private readonly region?;
    private readonly baseUrl?;
    private readonly invalidateOnDelete;
    private readonly invalidateOnUpdate;
    private readonly batchSize;
    private readonly retryAttempts;
    private readonly retryDelay;
    private readonly pathGenerator?;
    private invalidationsPerformed;
    private invalidationsFailed;
    private pathsInvalidated;
    private readonly invalidationQueue;
    private flushTimer;
    constructor(config: CloudFrontCDNPluginConfig);
    afterDelete(result: StoragePluginDeleteResult, _context: StoragePluginContext): Promise<void>;
    afterUpload(result: StoragePluginUploadResult, _context: StoragePluginContext): Promise<void>;
    private generatePaths;
    private queueInvalidation;
    private flushQueue;
    private sleep;
    destroy(): Promise<void>;
    healthCheck(): Promise<StoragePluginHealth>;
    getStatistics(): StorageCDNPluginStatistics;
}