public async Task <OfferData> ProposeOffer(Proposal proposal, PubKey bobPubKey)
{
var key = new Key();
_Repository.SaveKey(key);
var initiator = GetChain(proposal.From.Chain);
var taker = GetChain(proposal.To.Chain);
var preimage = new Preimage();
_Repository.SavePreimage(preimage);
var lockTimes = new[]
{
CalculateLockTime(proposal.From, TimeSpan.FromHours(2.0)),
CalculateLockTime(proposal.To, TimeSpan.FromHours(1.0))
};
return(new OfferData()
{
Initiator = new OfferParty()
{
Asset = proposal.From,
PubKey = key.PubKey
},
Taker = new OfferParty()
{
Asset = proposal.To,
PubKey = bobPubKey
},
LockTime = await lockTimes[0].ConfigureAwait(false),
CounterOfferLockTime = await lockTimes[1].ConfigureAwait(false),
Hash = preimage.GetHash()
});
}
private async Task Propose(ProposeOptions o)
{
if (o.Proposition == null)
{
throw new FormatException();
}
var proposal = Proposal.Parse(o.Proposition);
GetSupportedChain(proposal.From.Chain).EnsureIsSetup();
GetSupportedChain(proposal.To.Chain).EnsureIsSetup();
var key = new PubKey(o.PubKey ?? "");
var swapper = CreateSwapper();
var offerData = await swapper.ProposeOffer(proposal, key).ConfigureAwait(false);
Console.WriteLine("Transfer this offer to the other party:");
Console.WriteLine(Separator);
DataToTransfer = offerData.ToString(false);
Console.WriteLine(DataToTransfer);
Console.WriteLine(Separator);
Console.WriteLine();
Console.WriteLine("Waiting for the other party to broadcast the counter offer...");
Console.WriteLine();
var counterOffer = offerData.CreateCounterOffer();
blocked.Set();
var txId = await swapper.WaitOfferAsync(counterOffer).ConfigureAwait(false);
blocked.Reset();
Console.WriteLine("Counter Offer broadcasted by the other party " + txId);
txId = await swapper.BroadcastOffer(offerData, false).ConfigureAwait(false);
Console.WriteLine("Offer broadcasted by us " + txId);
Console.WriteLine();
Console.WriteLine("Waiting confirmation of the offer and counter offer...");
Console.WriteLine();
var offerConfirmation = swapper.WaitOfferConfirmationAsync(offerData).ContinueWith(oo =>
{
Console.WriteLine("Offer confirmed");
});
var counterOfferConfirmation = swapper.WaitOfferConfirmationAsync(counterOffer).ContinueWith(oo =>
{
Console.WriteLine("Counter Offer confirmed");
});
blocked.Set();
await Task.WhenAll(offerConfirmation, counterOfferConfirmation).ConfigureAwait(false);
blocked.Reset();
txId = await swapper.TakeOffer(counterOffer).ConfigureAwait(false);
Console.WriteLine("Counter offer taken " + txId);
Console.WriteLine();
Console.WriteLine("Exchange complete!");
}
