export interface EntityProps<Id = string> {
  readonly id: Id;
}

export abstract class Entity<Id> implements EntityProps<Id> {
  protected constructor(readonly id: Id) {
    // Make the id property truly immutable at runtime
    Object.defineProperty(this, 'id', {
      value: id,
      writable: false,
      enumerable: true,
      configurable: false
    });
  }

  equals(other?: Entity<Id>): boolean {
    return !!other && this.id === other.id;
  }
}

// Alias for backward compatibility
export type EntityAlias<Id = string> = EntityProps<Id>;