/**
 * Parse Meta WhatsApp webhook envelope into a normalized event.
 */
import type { InboundEnvelope, InboundEvent } from '../types.js';
/**
 * v0.15: normalized status update from Meta's webhook `statuses` array.
 * `pricingCategory` tracks Meta's classification (utility/marketing/
 * authentication/service) — right for the alarm that catches
 * UTILITY→MARKETING reclassification.
 */
export interface StatusUpdate {
    wamid: string;
    status: 'sent' | 'delivered' | 'read' | 'failed';
    pricingCategory?: 'utility' | 'marketing' | 'authentication' | 'service';
    timestampMs: number;
    recipient?: string;
    errors?: unknown[];
}
/**
 * v0.15: extract normalized status updates from a webhook envelope.
 * Complements `extractInbound` (which handles inbound messages) — Meta
 * webhooks can carry EITHER messages OR statuses in the same shape.
 * Returns `[]` when the envelope has no statuses.
 */
export declare function extractStatuses(envelope: InboundEnvelope | undefined | null): StatusUpdate[];
export declare function extractInbound(envelope: InboundEnvelope | undefined | null): InboundEvent;
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