@j03fr0st/pubg-ts/src/utils/rate-limiter.ts

A comprehensive TypeScript wrapper for the PUBG API

export class RateLimiter {
  private requests: number[] = [];
  private maxRequests: number;
  private windowMs: number;

  constructor(maxRequests: number = 10, windowMs: number = 60000) {
    this.maxRequests = maxRequests;
    this.windowMs = windowMs;
  }

  async waitForSlot(): Promise<void> {
    const now = Date.now();

    this.requests = this.requests.filter((time) => now - time < this.windowMs);

    if (this.requests.length >= this.maxRequests) {
      const oldestRequest = Math.min(...this.requests);
      const waitTime = this.windowMs - (now - oldestRequest);

      if (waitTime > 0) {
        await new Promise((resolve) => setTimeout(resolve, waitTime));
        return this.waitForSlot();
      }
    }

    this.requests.push(now);
  }

  getRemainingRequests(): number {
    const now = Date.now();
    this.requests = this.requests.filter((time) => now - time < this.windowMs);
    return Math.max(0, this.maxRequests - this.requests.length);
  }

  getResetTime(): number {
    if (this.requests.length === 0) return 0;

    const _now = Date.now();
    const oldestRequest = Math.min(...this.requests);
    return oldestRequest + this.windowMs;
  }
}