export class LRUCache<K, V> {
  private cache = new Map<K, V>();

  constructor(private maxSize: number = 100) {}

  get(key: K): V | undefined {
    const value = this.cache.get(key);
    if (value !== undefined) {
      this.cache.delete(key);
      this.cache.set(key, value);
    }
    return value;
  }

  set(key: K, value: V): void {
    if (this.cache.has(key)) {
      this.cache.delete(key);
    } else if (this.cache.size >= this.maxSize) {
      const firstKey = this.cache.keys().next().value;
      if (firstKey !== undefined) this.cache.delete(firstKey);
    }
    this.cache.set(key, value);
  }

  clear(): void {
    this.cache.clear();
  }
}