/**
 * Media Processing Webhook Adapter
 *
 * Example webhook adapter for external media processing services
 * (e.g., AWS MediaConvert, Cloudinary, Mux, etc.)
 *
 * This adapter handles webhooks from external transcoding/processing services
 * and emits appropriate storage events when processing completes.
 *
 * @example
 * ```ts
 * const adapter = new MediaProcessingWebhook({
 *   secret: process.env.MEDIA_PROCESSING_SECRET!,
 *   signatureMethod: STORAGE_SIGNATURE_METHOD.HmacSha256,
 *   signatureHeader: 'x-processing-signature',
 *   logger,
 * });
 *
 * webhookManager.registerAdapter(adapter);
 * ```
 */
import { BaseWebhookAdapter } from '../base/BaseWebhookAdapter';
import type { StorageWebhookPayload, ProcessedStorageWebhookEvent, StorageMediaProcessingWebhookConfig, StorageMediaProcessingPayload } from '@plyaz/types/storage';
import { StorageMediaProcessingPayloadSchema } from '@plyaz/types/storage';
/**
 * Media Processing Webhook Adapter
 *
 * Handles webhooks from external media processing services
 */
export declare class MediaProcessingWebhook extends BaseWebhookAdapter<StorageMediaProcessingPayload, typeof StorageMediaProcessingPayloadSchema> {
    readonly providerName: string;
    readonly eventType: string;
    readonly schema: typeof StorageMediaProcessingPayloadSchema;
    constructor(config: StorageMediaProcessingWebhookConfig);
    /**
     * Process media processing webhook
     */
    process(payload: StorageWebhookPayload<StorageMediaProcessingPayload>): Promise<ProcessedStorageWebhookEvent[]>;
    /**
     * Create transcode completed event
     */
    private createCompletedEvent;
    /**
     * Create transcode failed event
     */
    private createFailedEvent;
    /**
     * Create transcode progress event
     */
    private createProgressEvent;
    /**
     * Create thumbnail generated event
     */
    private createThumbnailEvent;
    /**
     * Parse timestamp from string or number
     */
    private parseTimestamp;
    /**
     * Extract object key from event (required by BaseWebhookAdapter)
     */
    protected extractObjectKey(event: StorageMediaProcessingPayload): string;
    /**
     * Extract bucket from event
     */
    protected extractBucket(event: StorageMediaProcessingPayload): string | undefined;
    /**
     * Generate idempotency key from job ID
     * Override default implementation to use job ID for deduplication
     */
    getIdempotencyKey(payload: StorageWebhookPayload<StorageMediaProcessingPayload>): string;
    /**
     * Check if adapter should process this webhook
     * Override to handle multiple event types
     */
    shouldProcess(payload: StorageWebhookPayload<unknown>): boolean;
}