internal BlockHeader GetBlockHeader()
{
string timestampAsString = Timestamp.ToString(
BlockHeader.TimestampFormat,
CultureInfo.InvariantCulture
);
ImmutableArray <byte> previousHashAsArray =
PreviousHash?.ToByteArray().ToImmutableArray() ?? ImmutableArray <byte> .Empty;
ImmutableArray <byte> actionsHashAsArray =
EvaluationDigest?.ToByteArray().ToImmutableArray() ?? ImmutableArray <byte> .Empty;
if (PreviousHash.Equals(EvaluationDigest))
{
Console.WriteLine();
}
// FIXME: When hash is not assigned, should throw an exception.
return(new BlockHeader(
index: Index,
timestamp: timestampAsString,
nonce: Nonce.ToByteArray().ToImmutableArray(),
miner: Miner?.ToByteArray().ToImmutableArray() ?? ImmutableArray <byte> .Empty,
difficulty: Difficulty,
totalDifficulty: TotalDifficulty,
previousHash: previousHashAsArray,
txHash: TxHash?.ToByteArray().ToImmutableArray() ?? ImmutableArray <byte> .Empty,
hash: Hash.ToByteArray().ToImmutableArray(),
preEvaluationHash: PreEvaluationHash.ToByteArray().ToImmutableArray(),
evaluationDigest: actionsHashAsArray
));
}
public bool AddTransaction(Transaction transaction)
{
if (transaction == null)
{
return(false);
}
if (!PreviousHash.Equals(NoobChaiN.FirstBlockHash))
{
if (!transaction.Process())
{
Console.WriteLine("Wrong Transaction Aborted!");
return(false);
}
}
Transactions.Add(transaction);
return(true);
}
public bool IsValid(bool verbose = false)
{
BlockRepository blockRepo = new BlockRepository();
List <Block> blocks = blockRepo.Get();
int index = blocks.FindIndex(x => x.Id == Id);
if (index != 0)
{
if (!PreviousHash.Equals(blocks[index - 1].Hash))
{
return(false);
}
}
return(true);
}
