/**
 * Notification Preferences Repository
 *
 * Data access layer for user notification preferences.
 * Used by DatabasePreferenceChecker to implement PreferenceChecker interface.
 */
import { BaseRepository } from '@plyaz/db';
import type { DatabaseResult, DatabaseServiceInterface, OperationConfig } from '@plyaz/types/db';
export interface NotificationPreferencesDatabaseRow extends Record<string, unknown> {
    id: string;
    user_id: string;
    email_enabled: boolean;
    sms_enabled: boolean;
    push_enabled: boolean;
    transactional_enabled: boolean;
    marketing_enabled: boolean;
    social_enabled: boolean;
    system_enabled: boolean;
    promotional_enabled: boolean;
    quiet_hours_enabled: boolean;
    quiet_hours_start: string | null;
    quiet_hours_end: string | null;
    quiet_hours_timezone: string;
    created_at: string;
    updated_at: string;
}
export declare class NotificationPreferencesRepository extends BaseRepository<NotificationPreferencesDatabaseRow> {
    constructor(db: DatabaseServiceInterface);
    static create(): NotificationPreferencesRepository;
    /**
     * Find preferences by user ID
     */
    findByUserId(userId: string): Promise<DatabaseResult<NotificationPreferencesDatabaseRow | null>>;
    /**
     * Create default preferences for a user
     */
    createDefault(userId: string, config?: OperationConfig): Promise<DatabaseResult<NotificationPreferencesDatabaseRow>>;
    /**
     * Get or create preferences for a user
     */
    getOrCreate(userId: string): Promise<NotificationPreferencesDatabaseRow>;
    /**
     * Update preferences for a user
     */
    updateByUserId(userId: string, data: Partial<NotificationPreferencesDatabaseRow>): Promise<DatabaseResult<NotificationPreferencesDatabaseRow>>;
}
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