public Money Offer(
ECXOnlyPubKey oraclePubKey,
SchnorrNonce eventNonce,
DiscretePayoffs offererPayoffs,
Timeouts timeouts, Money?collateral = null)
{
using var tx = StartTransaction();
if (!s.IsInitiator)
{
throw new InvalidOperationException("The acceptor can't initiate an offer");
}
s.OracleInfo = new OracleInfo(oraclePubKey, eventNonce);
s.Timeouts = timeouts;
s.OffererPayoffs = offererPayoffs;
s.Offerer = new Party();
var minimumCollateral = offererPayoffs.CalculateMinimumCollateral();
if (collateral is Money m && m < minimumCollateral)
{
throw new ArgumentException($"The collateral is too small, it should be at least {minimumCollateral.ToString(false, false)}");
}
s.Offerer.Collateral = collateral ?? minimumCollateral;
tx.Commit();
return(s.Offerer.Collateral);
}
public void CanConvertContractInfoToPayoff()
{
var payoffs = new DiscretePayoffs();
payoffs.Add(new DiscreteOutcome("a"), Money.Coins(5.0m));
payoffs.Add(new DiscreteOutcome("b"), Money.Coins(-5.0m));
payoffs.Add(new DiscreteOutcome("c"), Money.Coins(-2.0m));
Assert.Equal(Money.Coins(5.0m), payoffs.CalculateMinimumCollateral());
var ci = payoffs.ToContractInfo(payoffs.CalculateMinimumCollateral());
Assert.Equal(Money.Coins(10.0m), ci[0].Payout);
Assert.Equal(Money.Coins(0m), ci[1].Payout);
Assert.Equal(Money.Coins(3.0m), ci[2].Payout);
payoffs = DiscretePayoffs.CreateFromContractInfo(ci, Money.Coins(5.0m));
Assert.Equal(Money.Coins(5.0m), payoffs[0].Reward);
Assert.Equal(Money.Coins(-5.0m), payoffs[1].Reward);
Assert.Equal(Money.Coins(-2.0m), payoffs[2].Reward);
}