/// <inheritdoc />
public Transaction Process(IContractState stateSnapshot,
uint160 contractAddress,
ISmartContractTransactionContext transactionContext,
IList <TransferInfo> internalTransfers,
bool reversionRequired)
{
if (reversionRequired)
{
// Send back funds
if (transactionContext.TxOutValue > 0)
{
return(CreateRefundTransaction(transactionContext));
}
}
// If contract received no funds and made no transfers, do nothing.
if (transactionContext.TxOutValue == 0 && !internalTransfers.Any(x => x.Value > 0)) // TODO: In future discern whether we should even record internal transfers of 0.
{
return(null);
}
// If contract had no balance, received funds, but made no transfers, assign the current UTXO.
if (stateSnapshot.GetUnspent(contractAddress) == null && transactionContext.TxOutValue > 0 && !internalTransfers.Any())
{
stateSnapshot.SetUnspent(contractAddress, new ContractUnspentOutput
{
Value = transactionContext.TxOutValue,
Hash = transactionContext.TransactionHash,
Nvout = transactionContext.Nvout
});
return(null);
}
// All other cases we need a condensing transaction
var transactionCondenser = new TransactionCondenser(contractAddress, this.loggerFactory, internalTransfers, stateSnapshot, this.network, transactionContext);
return(transactionCondenser.CreateCondensingTransaction());
}