import type { HitLimitStore, HitWithBanResult, StoreResult } from '@joint-ops/hitlimit-types';
export interface RedisStoreOptions {
    url?: string;
    keyPrefix?: string;
}
export declare const HIT_SCRIPT = "\nlocal key = KEYS[1]\nlocal windowMs = tonumber(ARGV[1])\nlocal count = redis.call('INCR', key)\nlocal ttl = redis.call('PTTL', key)\nif ttl < 0 then\n  redis.call('PEXPIRE', key, windowMs)\n  ttl = windowMs\nend\nreturn {count, ttl}\n";
export declare const HIT_WITH_BAN_SCRIPT = "\nlocal hitKey = KEYS[1]\nlocal banKey = KEYS[2]\nlocal violationKey = KEYS[3]\nlocal windowMs = tonumber(ARGV[1])\nlocal limit = tonumber(ARGV[2])\nlocal banThreshold = tonumber(ARGV[3])\nlocal banDurationMs = tonumber(ARGV[4])\n\n-- Check ban first\nlocal banTTL = redis.call('PTTL', banKey)\nif banTTL > 0 then\n  return {-1, banTTL, 1, 0}\nend\n\n-- Hit counter\nlocal count = redis.call('INCR', hitKey)\nlocal ttl = redis.call('PTTL', hitKey)\nif ttl < 0 then\n  redis.call('PEXPIRE', hitKey, windowMs)\n  ttl = windowMs\nend\n\n-- Track violations if over limit\nlocal banned = 0\nlocal violations = 0\nif count > limit then\n  violations = redis.call('INCR', violationKey)\n  local vTTL = redis.call('PTTL', violationKey)\n  if vTTL < 0 then\n    redis.call('PEXPIRE', violationKey, banDurationMs)\n  end\n  if violations >= banThreshold then\n    redis.call('SET', banKey, '1', 'PX', banDurationMs)\n    banned = 1\n  end\nend\nreturn {count, ttl, banned, violations}\n";
export declare class RedisStore implements HitLimitStore {
    private redis;
    private prefix;
    private banPrefix;
    private violationPrefix;
    constructor(options?: RedisStoreOptions);
    hit(key: string, windowMs: number, _limit: number): Promise<StoreResult>;
    hitWithBan(key: string, windowMs: number, limit: number, banThreshold: number, banDurationMs: number): Promise<HitWithBanResult>;
    isBanned(key: string): Promise<boolean>;
    ban(key: string, durationMs: number): Promise<void>;
    recordViolation(key: string, windowMs: number): Promise<number>;
    reset(key: string): Promise<void>;
    shutdown(): Promise<void>;
}
export declare function redisStore(options?: RedisStoreOptions): HitLimitStore;
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