//TODO
public bool ProposeTransaction(byte[] to, int value)
{
if (ServerList.Count == 0)
{
return(false);
}
int oldBalance = Task.Run(async() => await BalanceFromAccountTable()).Result;
int newBalance = oldBalance - value;
List <TxIn> ins = new List <TxIn>();
String addr = Base64.ToBase64String(Account.address);
Console.WriteLine(addr);
foreach (UtxoReturn utxoReturn in userTxService.userUtxo.UtxoReturns)
{
ins.Add(new TxIn(HexHelper.StringToByteArray(utxoReturn.hash), utxoReturn.index, Account.address));
}
TxIn[] insArray = ins.ToArray();
foreach (TxIn txIn in insArray)
{
Console.WriteLine("In: " + HexHelper.ByteArrayToString(txIn.hash) + " " + txIn.index + " " +
Convert.ToBase64String(txIn.script));
}
signedTransaction = userTxService.MakeSignedTransaction(insArray, to, this.Account, value);
if (signedTransaction == null)
{
return(false);
}
payment = false;
int bizantine = ServerList.Count / 3;
List <Thread> threads = new List <Thread>();
for (int i = 0; i < bizantine + 1; i++)
{
Thread t = new Thread(paymentThread);
t.Start(i);
threads.Add(t);
}
foreach (Thread t in threads)
{
t.Join();
}
return(payment);
}
//Generate signed transaction
public byte[] MakeSignedTransaction(TxIn[] ins, byte[] to, Account from, int value)
{
List <TxOut> outs = new List <TxOut>();
int total = 0;
//Get aggregate balance of user
foreach (TxIn txIn in ins)
{
UtxoOutput utxoOut = UtxoTable.LookUpEntry(HexHelper.ByteArrayToString(txIn.hash), txIn.index, from.address);
Console.WriteLine("UtxoOut: " + utxoOut);
if (utxoOut != null && !utxoOut.spent)
{
total += utxoOut.value;
}
}
//If the value of proposed transaction is bigger than total balance
//Return null
if (total < value)
{
Console.WriteLine("Insufficient balance");
return(null);
}
int change = total - value;
//Add TxOuts to Transaction
outs.Add(new TxOut(value, from.publicKey, Convert.ToBase64String(to)));
outs.Add(new TxOut(change, from.publicKey, Convert.ToBase64String(from.address)));
Tx tx = new Tx();
tx.TxIns.AddRange(ins);
tx.TxOuts.AddRange(outs);
//Get the hash of Transaction
tx.getHash();
return(tx.SignTx(from.key));
}