protected override async Task InvokeAsyncBase(InvocationContext context)
{
var name = context.ParseResult.CommandResult.GetArgumentValueOrDefault <string>("name")?.Trim();
if (name is null)
{
throw new CommandOptionRequiredException("name");
}
var dlc = await GetDLC("name", name);
if (dlc is null)
{
throw new CommandException("name", "This DLC does not exist");
}
var psbt = context.ParsePSBT("setuppsbt", Network);
var builder = dlc.GetBuilder(Network);
if (builder.State.IsInitiator)
{
context.AssertState("name", dlc, true, DLCNextStep.Setup, Network);
var key = await Repository.CreatePrivateKey();
try
{
var offer = builder.FundOffer(key.PrivateKey, psbt);
offer.OffererContractId = dlc.Id;
dlc.FundKeyPath = key.KeyPath;
dlc.BuilderState = builder.ExportStateJObject();
dlc.Offer = JObject.FromObject(offer, JsonSerializer.Create(Repository.JsonSettings));
await Repository.SaveDLC(dlc);
context.WriteObject(offer, Repository.JsonSettings);
}
catch (InvalidOperationException err)
{
throw new CommandException("fundpsbt", err.Message);
}
}
else
{
context.AssertState("name", dlc, false, DLCNextStep.Setup, Network);
var k = await Repository.CreatePrivateKey();
var accept = builder.FundAccept(k.PrivateKey, psbt);
accept.AcceptorContractId = dlc.Id;
dlc.FundKeyPath = k.KeyPath;
dlc.BuilderState = builder.ExportStateJObject();
dlc.Accept = JObject.FromObject(accept, JsonSerializer.Create(Repository.JsonSettings));
await Repository.SaveDLC(dlc);
context.WriteObject(accept, Repository.JsonSettings);
}
}
protected override async Task InvokeAsyncBase(InvocationContext context)
{
var name = context.ParseResult.CommandResult.GetArgumentValueOrDefault <string>("name")?.Trim();
if (name is null)
{
throw new CommandOptionRequiredException("name");
}
var dlc = await GetDLC("name", name);
if (dlc?.BuilderState is null ||
dlc?.OracleInfo is null)
{
throw new CommandException("name", "This DLC does not exist");
}
var builder = new DLCTransactionBuilder(dlc.BuilderState.ToString(), Network);
var psbt = context.ParsePSBT("signedpsbt", Network);
if (!builder.State.IsInitiator)
{
context.AssertState("name", dlc, false, DLCNextStep.Fund, Network);
var fullySigned = builder.Finalize(psbt);
dlc.BuilderState = builder.ExportStateJObject();
await Repository.SaveDLC(dlc);
context.WriteTransaction(fullySigned, builder.State.Funding?.FundCoin, Network);
}
else
{
context.AssertState("name", dlc, true, DLCNextStep.Fund, Network);
var key = await Repository.GetKey(dlc.FundKeyPath !);
try
{
var sign = builder.Sign2(key, psbt);
dlc.Sign = sign;
dlc.BuilderState = builder.ExportStateJObject();
await Repository.SaveDLC(dlc);
context.WriteObject(sign, Repository.JsonSettings);
}
catch (Exception ex)
{
throw new CommandException("signedpsbt", $"Invalid PSBT. ({ex.Message})");
}
}
}
private async Task HandleAccept(InvocationContext context, Accept accept)
{
var dlc = await GetDLC(accept.TemporaryContractId);
context.AssertState("signed", dlc, true, DLCNextStep.CheckSigs, Network);
var builder = new DLCTransactionBuilder(dlc.BuilderState !.ToString(), Network);
try
{
builder.Sign1(accept);
dlc.BuilderState = builder.ExportStateJObject();
dlc.Accept = accept;
await Repository.SaveDLC(dlc);
context.WritePSBT(builder.GetFundingPSBT());
}
catch (Exception ex)
{
throw new CommandException("signed", $"Invalid signatures. ({ex.Message})");
}
}
private async Task HandleSign(InvocationContext context, Sign sign)
{
var dlc = await GetDLC(sign.ContractId);
context.AssertState("signed", dlc, false, DLCNextStep.CheckSigs, Network);
var builder = new DLCTransactionBuilder(dlc.BuilderState !.ToString(), Network);
try
{
builder.Finalize1(sign);
dlc.Sign = sign;
dlc.BuilderState = builder.ExportStateJObject();
await Repository.SaveDLC(dlc);
context.WritePSBT(builder.GetFundingPSBT());
}
catch (Exception ex)
{
throw new CommandException("signed", $"Invalid signatures. ({ex.Message})");
}
}
private async Task HandleAccept(InvocationContext context, string signedMessageBase64)
{
var accept = Parse <Accept>(signedMessageBase64);
var dlc = await GetDLC(accept.OffererContractId);
context.AssertState("signed", dlc, true, DLCNextStep.CheckSigs, Network);
var builder = new DLCTransactionBuilder(dlc.BuilderState !.ToString(), Network);
try
{
builder.Sign1(accept);
dlc.BuilderState = builder.ExportStateJObject();
dlc.Accept = JObject.FromObject(accept, JsonSerializer.Create(Repository.JsonSettings));
await Repository.SaveDLC(dlc);
context.WritePSBT(builder.GetFundingPSBT());
}
catch (Exception ex)
{
throw new CommandException("signed", $"Invalid signatures. ({ex.Message})");
}
}
