public async Task <int> VerifyTransaction(Transaction transaction, ICollection <Transaction> siblings)
{
foreach (var instruction in transaction.Instructions)
{
if (!await VerifyInstruction(instruction, siblings))
{
return(-1);
}
}
var expectedId = await _transactionKeyResolver.ResolveKey(transaction);
if (!expectedId.SequenceEqual(transaction.TransactionId))
{
return(-2);
}
foreach (var txnRule in _txnRules)
{
var txnResult = txnRule.Validate(transaction, siblings);
if (txnResult != 0)
{
return(txnResult);
}
}
return(0);
}
public async Task <Transaction> Build(ICollection <Instruction> instructions)
{
var result = new Transaction(instructions);
result.TransactionId = await _keyResolver.ResolveKey(result);
return(result);
}