export class limitedArray {
  _array: unknown[];
  _limit: number;

  /**
   * Used to construct the LimitedArray
   * Defaults to 100 when no size is passed in
   * @param size
   */
  constructor(size = 100) {
    this._array = [];
    this._limit = size;
  }

  /**
   * Add items to the end of an array
   * @param item
   */

  push(item: unknown): void {
    this._array.push(item);
    if (this._array.length > this._limit) this._array.shift();
  }

  /**
   * Return the items within the array
   * @returns {[]}
   */
  get(): unknown[] {
    return this._array;
  }

  /**
   * Limits the size of the array
   * @param size
   */
  limit(size: number): void {
    this._limit = size;
    if (this._array.length > this._limit) this._array = this._array.slice(this._array.length - this._limit);
  }

  /**
   * Returns the length of the array
   * @returns {number}
   */
  length(): number {
    return this._array.length;
  }

  /**
   * Bulk add an array to the array
   * @param items
   */
  add(items: unknown[]): void {
    this._array = this._array.concat(items);

    if (this._array.length > this._limit) this._array = this._array.slice(this._array.length - this._limit);
  }

  /**
   * Remove an item from the beginning of an array
   * @returns {*}
   */
  shift(): unknown {
    return this._array.shift();
  }
}