public virtual void ChangeState(States newState)
{
if (newState == State)
{
return;
}
string exceptionMessage = $"Некорректная операция. Не предусмотрена смена статуса с {State} на {newState}";
switch (newState)
{
//Подана
case States.Submited:
if (State == States.New || State == States.OnClarification)
{
State = newState;
}
else
{
throw new InvalidOperationException(exceptionMessage);
}
break;
//На уточнении
case States.OnClarification:
if (State == States.Agreed ||
State == States.GivenForTake ||
State == States.Canceled ||
State == States.PartiallyClosed)
{
State = newState;
}
else
{
throw new InvalidOperationException(exceptionMessage);
}
break;
//Согласована
case States.Agreed:
if (State == States.Submited)
{
State = newState;
}
else
{
throw new InvalidOperationException(exceptionMessage);
}
break;
//Передана на выдачу
case States.GivenForTake:
if (State == States.Agreed)
{
State = newState;
}
else
{
throw new InvalidOperationException(exceptionMessage);
}
break;
case States.Canceled:
if (State == States.Submited ||
State == States.New ||
State == States.OnClarification ||
State == States.GivenForTake ||
State == States.Agreed)
{
State = newState;
}
else
{
throw new InvalidOperationException(exceptionMessage);
}
break;
case States.Closed:
State = Sums.All(x => x.Sum == x.ObservableExpenses.Sum(e => e.Money)) ? newState : States.PartiallyClosed;
break;
case States.PartiallyClosed:
break;
default:
throw new NotImplementedException($"Не реализовано изменение статуса для {newState}");
}
}
