public RecentAccountViewModel(ViewModelBase parent, Account account, string accountName, Amount balance)
: base(parent)
{
Account = account;
AccountName = accountName;
Balance = balance;
}
public Output(Amount amount, byte[] pkScript)
{
if (pkScript == null)
throw new ArgumentNullException(nameof(pkScript));
Amount = amount;
PkScript = pkScript;
}
public string FormatAmount(Amount amount)
{
var negativeSign = "";
var negative = amount < 0;
if (negative)
{
amount = -amount;
negativeSign = "-";
}
var wholePart = amount / _satoshisPerUnit;
var decimalPart = (double)(amount % _satoshisPerUnit) / _satoshisPerUnit;
return string.Format(_formatString, negativeSign, wholePart, decimalPart);
}
public string FormatAmount(Amount amount)
{
// The negative sign has to be printed separately. It can not be displayed as a
// negative whole part, since there is no such thing as negative zero for longs.
var negativeSign = "";
var negative = amount < 0;
if (negative)
{
amount = -amount;
negativeSign = "-";
}
var wholePart = amount / _satoshisPerUnit;
var decimalPart = (double)(amount % _satoshisPerUnit) / _satoshisPerUnit;
return string.Format(_formatString, negativeSign, wholePart, decimalPart);
}
public async Task<Tuple<List<UnspentOutput>, Amount, OutputScript>> FundTransactionAsync(
Account account, Amount targetAmount, int requiredConfirmations)
{
var client = WalletService.NewClient(_channel);
var request = new FundTransactionRequest
{
Account = account.AccountNumber,
TargetAmount = targetAmount,
RequiredConfirmations = requiredConfirmations,
IncludeImmatureCoinbases = false,
IncludeChangeScript = true,
};
var response = await client.FundTransactionAsync(request, cancellationToken: _tokenSource.Token);
var outputs = response.SelectedOutputs.Select(MarshalUnspentOutput).ToList();
var total = (Amount)response.TotalAmount;
var changeScript = (OutputScript)null;
if (response.ChangePkScript?.Length != 0)
{
changeScript = OutputScript.ParseScript(response.ChangePkScript.ToByteArray());
}
return Tuple.Create(outputs, total, changeScript);
}
public async Task<Tuple<List<UnspentOutput>, Amount>> SelectUnspentOutputs(Account account, Amount targetAmount,
int requiredConfirmations)
{
var client = WalletService.NewClient(_channel);
var request = new FundTransactionRequest
{
Account = account.AccountNumber,
TargetAmount = targetAmount,
RequiredConfirmations = requiredConfirmations,
IncludeImmatureCoinbases = false,
IncludeChangeScript = false,
};
var response = await client.FundTransactionAsync(request, cancellationToken: _tokenSource.Token);
var outputs = response.SelectedOutputs.Select(MarshalUnspentOutput).ToList();
var total = (Amount)response.TotalAmount;
return Tuple.Create(outputs, total);
}
public AccountTransactionViewModel(WalletTransaction transaction, Amount runningBalanceDelta, Amount runningBalance)
{
_transaction = transaction;
BalanceDelta = runningBalanceDelta;
_balance = runningBalance;
}
public Output(Amount amount, string destination)
{
Amount = amount;
Destination = destination;
}
public Input(Amount amount, string previousAccount)
{
Amount = amount;
PreviousAccount = previousAccount;
}
/// <summary> /// Perform a preliminary check that the Amount is within the bounds of valid /// transaction output values. Additional checks are required before authoring /// a valid transaction to ensure the total output amount does not exceed the /// total previous output amount referenced by the inputs. /// </summary> public static bool IsSaneOutputValue(Amount a) => a >= 0 && a <= MaxOutputValue;
