import { z } from 'zod';
export interface EventHeader {
    id: string;
    type: string;
    origin: string;
    timestamp: string;
    hash: string;
    version: string;
}
export interface EventEnvelope<T = any> {
    header: EventHeader;
    body: T;
}
export declare function generateEventId(): string;
export declare function generateEventHash(body: any): string;
export declare function createEventHeader(eventType: string, origin: string, body: any): EventHeader;
export declare function createEventEnvelope<T>(eventType: string, origin: string, body: T, namespace?: string): EventEnvelope<T>;
export interface EventValidator {
    validate(eventType: string, body: any): ValidationResult;
    getSchema(eventType: string): z.ZodSchema;
}
export interface ValidationResult {
    valid: boolean;
    error?: string;
}
export declare class DefaultEventValidator implements EventValidator {
    private schemas;
    constructor(schemas?: Record<string, z.ZodSchema>);
    registerSchema(eventType: string, schema: z.ZodSchema): void;
    getSchema(eventType: string): z.ZodSchema;
    validate(eventType: string, body: any): ValidationResult;
}