public void AdvanceTo(BuilderState next)
{
if(!CanAdvanceTo(next))
throw new InvalidOperationException("Can't move from state " + _state.ToString() + " to state " + next.ToString() + ".");
BuilderState before = _state;
_state = next;
OnAfterAdvance(before, next, before != BuilderState.Idle, before != BuilderState.Idle && before != BuilderState.System);
}
public DLCTransactionBuilder GetBuilder(Network network)
{
if (BuilderState is null)
{
throw new InvalidOperationException("The builder is not created yet");
}
return(new DLCTransactionBuilder(BuilderState.ToString(), network));
}
public void AdvanceTo(BuilderState next)
{
if (!CanAdvanceTo(next))
{
throw new InvalidOperationException("Can't move from state " + _state.ToString() + " to state " + next.ToString() + ".");
}
BuilderState before = _state;
_state = next;
OnAfterAdvance(before, next, before != BuilderState.Idle, before != BuilderState.Idle && before != BuilderState.System);
}
protected override void OnAfterAdvance(BuilderState before, BuilderState after, bool wasInsideSystem, bool wasInsideGroup)
{
if(after != before)
{
if(wasInsideGroup)
_writer.WriteEndElement();
if(after == BuilderState.Idle)
_writer.WriteEndElement();
else
_writer.WriteStartElement(after.ToString(), Context.YttriumNamespace);
}
}
public DLCNextStep GetNextStep(Network network)
{
if (BuilderState is null)
{
throw new InvalidOperationException("BuilderState not set");
}
var builder = new DLCTransactionBuilder(BuilderState.ToString(), network);
DLCNextStep nextStep;
if (builder.State.IsInitiator)
{
if (FundKeyPath is null)
{
nextStep = DLCNextStep.Setup;
}
else if (Accept is null)
{
nextStep = DLCNextStep.CheckSigs;
}
else if (Sign is null)
{
nextStep = DLCNextStep.Fund;
}
else
{
nextStep = DLCNextStep.Done;
}
}
else
{
if (builder.State.Funding is null)
{
nextStep = DLCNextStep.Setup;
}
else if (Sign is null)
{
nextStep = DLCNextStep.CheckSigs;
}
else if (!builder.State.Funding.PSBT.CanExtractTransaction())
{
nextStep = DLCNextStep.Fund;
}
else
{
nextStep = DLCNextStep.Done;
}
}
return(nextStep);
}
protected override void OnAfterAdvance(BuilderState before, BuilderState after, bool wasInsideSystem, bool wasInsideGroup)
{
if (after != before)
{
if (wasInsideGroup)
{
_writer.WriteEndElement();
}
if (after == BuilderState.Idle)
{
_writer.WriteEndElement();
}
else
{
_writer.WriteStartElement(after.ToString(), Config.YttriumNamespace);
}
}
}