static void CreateTransaction(List <string> from, string to, int amount, string change, BlockChainClassLib.CommandProcessor cmdProc)
{
WalletLib.WalletEntry we;
//build the transaction:
BlockChainClassLib.Transaction t = new BlockChainClassLib.Transaction();
t.id = Guid.NewGuid();
foreach (string address in from)
{
we = cmdProc.Wallet_FindEntry(address);
string publicKey = we.publicKey;
string signature = cmdProc.SignAddress(address, t.id.ToString(), we.publicKey, we.privateKey);
t.Inputs.Add(new BlockChainClassLib.Input(address, signature, publicKey));
}
//add the primary payment address
t.Outputs.Add(new BlockChainClassLib.Output(to, amount));
//add the address to collect change
t.Outputs.Add(new BlockChainClassLib.Output(change, 0));
//sign the transaction
we = cmdProc.Wallet_FindEntry(from[0]);
t.PublicKey = we.publicKey;
cmdProc.SignTransaction(t, we.publicKey, we.privateKey);
//Instruct the command processor to submit the transaction
cmdProc.Transfer(t);
}
//Provides an interactive mechanism for the user to create blockchain transactions
static void InteractiveCreateTransaction(string[] cmdArgs, BlockChainClassLib.CommandProcessor cmdProc)
{
//1) ask the user for a list of input transactions:
System.Console.WriteLine("Create Transaction:");
System.Console.WriteLine("Enter Addresses from your Wallet (one on each line, blank to cancel entry):");
WalletLib.WalletEntry we;
//build a list of input addresses
List <string> addressList = new List <string>();
int i = 1;
string line = "";
do
{
System.Console.Write(string.Format("Enter Source Address ({0})=", i));
line = System.Console.ReadLine().Trim();
if (line == "")
{
break;
}
we = cmdProc.Wallet_FindEntry(line);
if (we != null)
{
addressList.Add(line);
i++;
}
else
{
System.Console.WriteLine("address not found");
}
} while (line != "");
if (addressList.Count() == 0)
{
return;
}
//2) Enter primary payment address
System.Console.Write("Enter payment address (blank line to cancel transaction)=");
string paymentAddress = System.Console.ReadLine().Trim();
if (paymentAddress == "")
{
return;
}
//3) Enter payment amount
string paymentAmount = "";
int amount = 0;
do
{
System.Console.Write("Enter payment amount=");
paymentAmount = System.Console.ReadLine().Trim();
if (paymentAmount == "")
{
return;
}
} while (!int.TryParse(paymentAmount, out amount));
//Enter address to post any change to (enter "new" to create a new one and add to your wallet)
System.Console.Write("Enter change address (new to create one)=");
string changeAddress = System.Console.ReadLine().Trim();
if (changeAddress == "")
{
return;
}
if (changeAddress.Trim() == "new")
{
changeAddress = cmdProc.Wallet_CreateAddress();
cmdProc.Wallet_Save();
System.Console.WriteLine("Address added to your wallet: " + changeAddress);
}
CreateTransaction(addressList, paymentAddress, amount, changeAddress, cmdProc);
}
