/**
 * @author Timo lehnertz
 */

/**
 * Immutable Treasure class representing a treasure
 */
export class Treasure {
  public readonly id: number;

  public constructor(id: number) {
    this.id = id;
  }

  public equals(other: Treasure): boolean {
    return this.id === other.id;
  }

  public static compare(a: Treasure | null, b: Treasure | null): boolean {
    if (a === null && b !== null) {
      return false;
    }
    if (a !== null && b === null) {
      return false;
    }
    if (a !== null && b !== null) {
      return a.equals(b);
    }
    return true;
  }

  public static create(instance: Treasure): Treasure {
    return new Treasure(instance.id);
  }
}