void Apply(Block block)
{
logger.LogWarning($@"Applying Block {block.Height}:{
block.Id.ToString().Substring(0, 7)}.");
var txIds = (
from tx in block.ParsedTransactions
where !tx.ExecInfo.Coinbase
select tx.Id).ToArray();
lock (InventoryManager.MemoryPool)
{
foreach (var txId in txIds)
{
InventoryManager.MemoryPool.Remove(txId);
}
}
foreach (var tx in block.ParsedTransactions)
{
tx.ExecInfo.RedeemedOutputs.ForEach(x => Utxos.Remove(x));
tx.ExecInfo.GeneratedOutputs.ForEach(x => Utxos.Add(x));
}
Latest = block;
BlockExecuted();
}
void Revert(Block block)
{
logger.LogWarning($@"Reverting Block {block.Height}:{
block.Id.ToString().Substring(0, 7)}.");
var txIds = (
from tx in block.ParsedTransactions
where !tx.ExecInfo.Coinbase
select new { Id = tx.Id, Body = tx }).ToArray();
lock (InventoryManager.MemoryPool)
{
foreach (var tx in txIds)
{
InventoryManager.MemoryPool.Add(tx.Id, tx.Body);
}
}
foreach (var tx in block.ParsedTransactions)
{
tx.ExecInfo.RedeemedOutputs.ForEach(x => Utxos.Add(x));
tx.ExecInfo.GeneratedOutputs.ForEach(x => Utxos.Remove(x));
}
Latest = Blocks[block.PreviousHash];
BlockExecuted();
}
//Generates and returns a new transaction from this wallet.
public Transaction SendFunds(ECPublicKeyParameters recipient, decimal value, Chain chain)
{
if(GetBalance(chain) < value) { //gather balance and check funds.
Console.WriteLine("Not Enough funds to send transaction. Transaction Discarded.");
return null;
}
//create list of inputs - adding transaction inputs until we've got enough to satify the value
List<TransactionInput> inputs = new List<TransactionInput>();
decimal total = 0;
foreach(var utxo in this.Utxos.Values)
{
total += utxo.Value;
inputs.Add(new TransactionInput(utxo.Id));
if(total > value)
{
break;
}
}
// Create and sign a new transaction
Transaction transaction = new Transaction(PublicKey, recipient , value, inputs);
transaction.Sign(PrivateKey);
// And finally clear down any utxos we've used
foreach(TransactionInput ti in inputs)
{
Utxos.Remove(ti.TransactionOutputId);
}
return transaction;
}