private void Validate(Model.Payment.Payment state)
{
if (state.Status != PaymentStatus.Pending)
{
throw new InvalidDataException(nameof(state.Status));
}
}
public PaymentCompleted Execute(Model.Payment.Payment state)
{
Validate(state);
var evn = CreateEvent <PaymentCompleted>(state);
evn.OrderStreamId = state.OrderStreamId;
return(evn);
}
private PaymentRequested CreateEvent(Model.Payment.Payment state)
{
var evn = CreateEvent <PaymentRequested>(state);
evn.OrderStreamId = OrderStreamId;
evn.Total = Total;
evn.Description = Description;
return(evn);
}
private void Validate(Model.Payment.Payment state)
{
if (string.IsNullOrWhiteSpace(OrderStreamId))
{
throw new InvalidDataException(nameof(OrderStreamId));
}
if (Total <= 0)
{
throw new InvalidDataException(nameof(Total));
}
if (string.IsNullOrWhiteSpace(Description))
{
throw new InvalidDataException(nameof(Description));
}
if (state.Status != PaymentStatus.Unpaid)
{
throw new InvalidDataException(nameof(state.Status));
}
}
public PaymentCancelled Execute(Model.Payment.Payment state)
{
Validate(state);
return(CreateEvent <PaymentCancelled>(state));
}
public PaymentRequested Execute(Model.Payment.Payment state)
{
Validate(state);
return(CreateEvent(state));
}
