/**
 * Notifications Validator
 *
 * Validates and sanitizes Notifications DTOs using Zod schemas from @plyaz/types.
 * Supports list/delete operations for frontend, full CRUD for backend.
 *
 * Operations:
 * - delete (DELETE) - validateDelete, validateDeleteOrThrow
 * - query (GET)   - validateQuery, validateQueryOrThrow
 * - create (POST) - validateCreate, validateCreateOrThrow (backend)
 */
import { BaseValidator } from '../../base';
import type { DeleteNotificationsDTO, QueryNotificationsDTO, CreateNotificationsDTO } from '@plyaz/types/core';
import type { NotificationCategory, NotificationChannel } from '@plyaz/types/notifications';
import type { NotificationPreferencesDatabaseRow } from '../../../models/notifications';
/**
 * Notifications Validator implementation
 * Supports list/delete for frontend, full CRUD for backend
 *
 * All schemas imported from @plyaz/types/core - single source of truth
 *
 * Available methods:
 * - validateDelete(data) → ValidationResult<DeleteNotificationsDTO>
 * - validateDeleteOrThrow(data) → DeleteNotificationsDTO
 * - validateQuery(data) → ValidationResult<QueryNotificationsDTO>
 * - validateQueryOrThrow(data) → QueryNotificationsDTO
 * - validateCreate(data) → ValidationResult<CreateNotificationsDTO>
 * - validateCreateOrThrow(data) → CreateNotificationsDTO
 */
declare class NotificationsValidatorClass extends BaseValidator<CreateNotificationsDTO, CreateNotificationsDTO, // Update same as create
Partial<CreateNotificationsDTO>, // Patch
DeleteNotificationsDTO, QueryNotificationsDTO> {
    constructor();
    /**
     * Validate notification ID for delete
     */
    validateNotificationId(id: string): boolean;
    /**
     * Validate query filters
     */
    validateFilters(filters: Partial<QueryNotificationsDTO>): boolean;
    /**
     * Check if category is valid for unsubscribe.
     */
    isValidUnsubscribeCategory(category: string): category is NotificationCategory;
    /**
     * Validate unsubscribe category - throws if invalid.
     */
    validateUnsubscribeCategoryOrThrow(category: string, isFullUnsubscribe: boolean): void;
    /**
     * Check if preferences allow sending a notification.
     * Validates channel, category, and quiet hours.
     */
    checkPreferencesAllowSend(prefs: NotificationPreferencesDatabaseRow, category: NotificationCategory, channel: NotificationChannel): boolean;
}
export { NotificationsValidatorClass };
export declare const NotificationsValidator: NotificationsValidatorClass;
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