Ratelimiter.js

class Ratelimiter {
    constructor({ limit = 1, frequency = 5 }) {
        this.count = 0;
        this.limit = limit;
        this.frequency = frequency * 1000;

        this._timeout();
    }

    _timeout() {
        if(this.count > 0) this.count--;
        setTimeout(this._timeout.bind(this), this.frequency);
    }

    check(condition = true) {
        if(!condition) return false;
        return this.count++ > this.limit;
    }
}

module.exports = Ratelimiter;