import type { RequestHandler } from '@sveltejs/kit';
import type { RateLimitConfig } from '../../../types.js';
import type { NotificationPreferenceRepository } from '../../adapters/types.js';
import type { NotificationRegistry } from '../registry.js';
export interface PreferencesHandlerOptions {
    /**
     * Rate limit for the mutating `PUT`, keyed by the authenticated user id
     * (the endpoint requires a session, and a per-user key can't be dodged by
     * IP rotation). Default 30/min; pass `null` to disable.
     */
    rateLimit?: RateLimitConfig | null;
}
/**
 * Preferences CRUD for the authenticated user. The `registry` is required:
 * `PUT` rejects a `typeKey` that isn't a registered notification type (400).
 * Without that gate the upsert would persist a row for ANY ≤256-char string,
 * letting an authenticated user grow the preference table without bound —
 * validated, the per-user row count is capped by the number of registered
 * types (preferences for types nobody can `send()` are meaningless anyway).
 */
export declare function createPreferencesHandler(repo: NotificationPreferenceRepository, registry: NotificationRegistry, options?: PreferencesHandlerOptions): {
    GET: RequestHandler;
    PUT: RequestHandler;
};