import 'reflect-metadata';
/**
 * Metadata shape stored under `WIRE_VALIDATE_KEY` on the class prototype.
 *
 * Each decorated property name maps to its rule descriptor:
 * ```ts
 * {
 *   title: { rule: vine.string().minLength(3), onUpdate: true },
 *   email: { rule: vine.string().email(), message: 'Bad email', onUpdate: true },
 * }
 * ```
 */
export type ValidateMetadata = Record<string, {
    rule: any;
    message?: string;
    as?: string;
    onUpdate: boolean;
}>;
/**
 * @Validate(rule, opts?) — Property decorator for declarative VineJS validation.
 *
 * Attaches a VineJS validation rule to a component property. The rule is stored
 * as reflect-metadata on the class prototype under `WIRE_VALIDATE_KEY` and is
 * consumed at runtime by:
 *
 *   - `maybeValidateOnUpdate()` in the request handler — runs validation
 *     automatically whenever the client updates a property (when `onUpdate`
 *     is `true`).
 *   - `WireValidator.validateProperty()` — the low-level engine that compiles
 *     the VineJS schema and executes it.
 *   - `component.validate()` — the component-level entry point.
 *
 * Usage:
 * ```ts
 * import { Validate } from 'adowire/decorators'
 * import vine from '@vinejs/vine'
 *
 * export default class CreatePost extends WireComponent {
 *   @Validate(vine.string().minLength(3))
 *   title: string = ''
 *
 *   @Validate(vine.string().email(), { message: 'Bad email', onUpdate: true })
 *   email: string = ''
 *
 *   @Validate(vine.number().min(0), { as: 'item price', onUpdate: false })
 *   price: number = 0
 * }
 * ```
 *
 * @param rule      A VineJS schema type (e.g. `vine.string()`, `vine.number()`).
 * @param opts.message   Optional override for the default VineJS error message.
 * @param opts.as        Optional display label passed to VineJS as the field name.
 * @param opts.onUpdate  Whether to validate on every client property update.
 *                       Defaults to `true`.
 */
export declare function Validate(rule: any, opts?: {
    message?: string;
    as?: string;
    onUpdate?: boolean;
}): PropertyDecorator;