private async void FillSignBtn_Click(object sender, RoutedEventArgs e)
{
bool success = await this.checkConnection();
if (!success)
{
return;
}
this.tokenSource = new CancellationTokenSource();
CancellationToken ct = this.tokenSource.Token;
CancelBtn.IsEnabled = true;
SettingsGrid.IsEnabled = false;
OperationsGrid.IsEnabled = false;
// The Progress<T> constructor captures our UI context, so the lambda will be run on the UI thread.
var progress = new Progress <int>(percent =>
{
OperationProgress.Value = percent;
ProgressLabel.Content = percent + "%";
});
var stats = new SigningStats()
{
Processed = 0, Signed = 0
};
try {
// signSerialNumbers is run on the thread pool.
stats = await Task.Run(() => this.signSerialNumbers(progress, ct));
OperationProgress.Value = 100;
StatusTextBlock.Text = "Done!";
StatusTextBlock.Foreground = this.defaultColor;
}
catch (OperationCanceledException) {
StatusTextBlock.Text = "Stopped!";
StatusTextBlock.Foreground = this.errorColor;
}
catch (EmercoinWalletException ex) {
StatusTextBlock.Text = "Emercoin operation error";
StatusTextBlock.Foreground = this.errorColor;
AppUtils.ShowException(ex, this);
}
ProgressLabel.Content = string.Empty;
SettingsGrid.IsEnabled = true;
OperationsGrid.IsEnabled = true;
CancelBtn.IsEnabled = false;
this.tokenSource.Dispose();
MessageBox.Show(
this,
"Total serial numbers processed: " + stats.Processed + "\n" + "Records signed: " + stats.Signed,
AppUtils.AppName);
}
private SigningStats signSerialNumbers(IProgress <int> progress, CancellationToken ct)
{
var stats = new SigningStats();
var signedColumns = new HashSet <int>();
for (int n = 0; n < this.snData.HeaderRow.Length; n++)
{
string col = this.snData.HeaderRow[n];
if (col.StartsWith("F-"))
{
signedColumns.Add(n);
}
}
int i = 0;
foreach (string[] row in this.snData.Rows)
{
string sn = row[0];
string name = this.settings.RootDPOName + ":" + sn;
for (int j = 0; j < 100; j++)
{
string nameUnique = name + ":" + j.ToString(CultureInfo.InvariantCulture);
if (this.wallet.CheckNameIsMine(nameUnique))
{
var record = string.Empty;
var messageParts = new List <string>()
{
nameUnique
};
for (int k = 1; k < this.snData.HeaderRow.Length; k++)
{
string part = this.snData.HeaderRow[k] + "=" + row[k];
record = record + part + "\n";
if (signedColumns.Contains(k))
{
messageParts.Add(part);
}
}
string signedMessage = this.wallet.SignMessage(string.Join("|", messageParts));
record = record + "Signature=" + signedMessage;
this.wallet.UpdateName(nameUnique, record, 1, this.settings.OwnerAddress);
stats.Signed++;
break;
}
}
stats.Processed++;
if (i > 0 && i % 10 == 0)
{
Thread.Sleep(5000);
}
i++;
if (progress != null)
{
progress.Report(getPercent(i, this.snData.Rows.Count));
}
ct.ThrowIfCancellationRequested();
}
return(stats);
}
