/**
 * DDNS Repository
 *
 * 管理 Cloud 已分配的 DDNS 记录。
 *
 * 根域名、DNS provider 和 zone 等属于 Cloud 部署配置，不在控制面表中
 * 再维护一份域名池，避免配置事实和数据库事实分叉。
 */
import type { IdentityDatabase } from './db';
export interface DdnsRecord {
    subdomain: string;
    domain: string;
    ipAddress?: string;
    ipv6Address?: string;
    recordType: 'A' | 'AAAA' | 'CNAME';
    nodeId?: string;
    username?: string;
    status: 'active' | 'banned';
    bannedReason?: string;
    ttl: number;
    createdAt: Date;
    updatedAt: Date;
}
export interface CreateDdnsRecordInput {
    subdomain: string;
    domain: string;
    ipAddress?: string;
    ipv6Address?: string;
    recordType?: 'A' | 'AAAA' | 'CNAME';
    nodeId?: string;
    username?: string;
}
export interface UpdateDdnsRecordInput {
    ipAddress?: string | null;
    ipv6Address?: string | null;
    recordType?: 'A' | 'AAAA' | 'CNAME';
}
export declare class DdnsRepository {
    private readonly db;
    private readonly schema;
    private readonly ready;
    constructor(db: IdentityDatabase);
    /**
     * 分配子域名
     */
    allocateSubdomain(input: CreateDdnsRecordInput): Promise<DdnsRecord>;
    /**
     * 获取 DDNS 记录
     */
    getRecord(subdomain: string): Promise<DdnsRecord | null>;
    /**
     * 更新 DDNS 记录的 IP 地址
     */
    updateRecordIp(subdomain: string, input: UpdateDdnsRecordInput): Promise<DdnsRecord | null>;
    /**
     * 封禁子域名
     */
    banSubdomain(subdomain: string, reason: string): Promise<void>;
    /**
     * 解封子域名
     */
    unbanSubdomain(subdomain: string): Promise<void>;
    /**
     * 释放子域名
     */
    releaseSubdomain(subdomain: string): Promise<boolean>;
    /**
     * 获取用户的所有子域名
     */
    getRecordsByUsername(username: string): Promise<DdnsRecord[]>;
    /**
     * 获取节点的子域名
     */
    getRecordByNodeId(nodeId: string): Promise<DdnsRecord | null>;
}