import type { Redis } from 'ioredis';
import type { IContainer } from 'node-cqrs';
import type { IViewLocker } from '../interfaces/index.ts';
import { AbstractRedisAccessor } from './AbstractRedisAccessor.ts';
import type { RedisProjectionDataParams } from './RedisProjectionDataParams.ts';
export type RedisViewLockerParams = RedisProjectionDataParams & {
    /**
     * (Optional) Time-to-live (TTL) duration (in milliseconds) for which a view remains locked.
     * The lock is automatically prolonged while still held by this instance.
     *
     * @default 120_000
     */
    viewLockTtl?: number;
};
/**
 * Redis-backed implementation of IViewLocker.
 *
 * Uses a Redis key with NX+PX semantics to acquire a distributed view lock.
 * The lock is automatically prolonged at half the TTL interval via `PEXPIRE`
 * to prevent expiration while processing is in progress.
 *
 * Key format: `{keyPrefix}:viewlock:{projectionName}:{schemaVersion}`
 */
export declare class RedisViewLocker extends AbstractRedisAccessor implements IViewLocker {
    #private;
    constructor(o: Partial<Pick<IContainer, 'viewModelRedis' | 'viewModelRedisFactory' | 'logger'>> & RedisViewLockerParams);
    protected initialize(_redis: Redis): void;
    get ready(): boolean;
    lock(): Promise<boolean>;
    private scheduleLockProlongation;
    private cancelLockProlongation;
    private prolongLock;
    unlock(): Promise<void>;
    once(event: 'ready'): Promise<void>;
}