<?php

namespace App\Cache\Redis\Lua;

use App\Cache\Redis\BaseScript;

class RateLimit extends BaseScript
{
    /**
     * @return string
     */
    public function getName(): string
    {
        return 'rate_limit';
    }

    /**
     * 限流
     * @param string $key
     * @param int $limit
     * @param int $window
     * @return array
     */
    public function check(string $key, int $limit, int $window): array
    {
        $result = $this->run([$key], [$limit, $window]);
        if (!$result) return [];
        return [(bool)$result[0], (int)$result[1]];
    }
}