/// <summary>
/// Paameters constructor
/// </summary>
/// <param name="id"></param>
/// <param name="Status"></param>
/// <param name="Items"></param>
/// <param name="Date"></param>
/// <param name="User"></param>
public Order(int id, Status Status, IEnumerable <IItem> Items, DateTime Date, RegisteredUser User)
{
this.Id = id;
this.Status = Status;
this.Items = Items;
this.Date = Date;
this.User = User;
}
/// <summary>
/// Add new <see cref="Order"/> by parameters
/// </summary>
/// <param name="status"></param>
/// <param name="items"></param>
/// <param name="date"></param>
/// <param name="user"></param>
public static void AddOrder(Status status, IEnumerable <IItem> items, DateTime date, RegisteredUser user)
{
if (date == default || user is null || ((IList <IItem>)items).Equals(null))
{
throw new ArgumentNullException("date");
}
((IList <Order>)Orders).Add(new Order(GetLastId(), status, items, date, user));
}