public void UpdateStatus(BookingStatus newStatus, string updatedBy, string cancelReason)
{
if (string.IsNullOrEmpty(updatedBy))
{
throw new ArgumentNullException(nameof(updatedBy));
}
if (newStatus == BookingStatus.Cancelled && string.IsNullOrEmpty(cancelReason))
{
throw new ArgumentNullException(nameof(cancelReason));
}
var bookingStatusTransition = new BookingStatusTransition();
var statusChangedEvent = new StatusChangedEvent(Status, newStatus);
if (!bookingStatusTransition.IsValid(statusChangedEvent))
{
throw new DomainRuleException("BookingStatus", $"Cannot change the booking status from {Status} to {newStatus}");
}
Status = newStatus;
UpdatedDate = DateTime.UtcNow;
UpdatedBy = updatedBy;
CancelReason = cancelReason;
if (newStatus == BookingStatus.Created)
{
// Booking confirmed
ConfirmedBy = updatedBy;
ConfirmedDate = DateTime.UtcNow;
}
}
public bool IsValid(StatusChangedEvent statusChangedEvent)
{
return(_permissibleTransitions.Any(x => x.Key == statusChangedEvent.CurrentStatus && x.Value == statusChangedEvent.NewStatus));
}
