/// <summary>
/// Handle the transaction we're mining having it's properties updated.
/// </summary>
/// <param name="sender">
/// The event sender.
/// </param>
/// <param name="e">
/// The event arguments.
/// </param>
private void OnTransactionToMinePropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
// Only process changes indicating completion
EnqueuedTransaction transaction = sender as EnqueuedTransaction;
if (transaction == null || TransactionToMine == null)
{
return;
}
if (!transaction.Completed)
{
return;
}
// Clear out the transaction to mine
TransactionToMine = null;
SiftDialogViewModel viewModel = _miningTransactionDialogViewModel;
// Display a message accordingly
viewModel.IsReturnButtonVisible = true;
if (transaction.WasSuccessful)
{
Logger.ApplicationInstance.Info("Purchase of SIFT added to block " + transaction.Receipt.BlockNumber.Value.ToString() + " for " + transaction.Receipt.TransactionHash + " at index " + transaction.Receipt.TransactionIndex.Value.ToString());
viewModel.Title = "SIFT Purchase Successful";
viewModel.Message = "Congratulations! Your transaction for the purchase of SIFT has gone onto the Ethereum network. Your new balance will be updated shortly and will be reflected in your Ethereum wallet.";
viewModel.IsSiftLogoVisible = true;
viewModel.IsEthereumAnimatedLogoVisible = false;
}
else
{
Logger.ApplicationInstance.Error("TransactionToMine failed with message. " + transaction.ErrorDetails);
viewModel.Title = "Problem Purchasing SIFT";
viewModel.Message = "There was a problem processing your transaction for SIFT. " + transaction.ErrorDetails;
}
}
/// <summary>
/// Shows a SIFT dialog without any buttons in non-modal mode.
/// </summary>
/// <param name="title">
/// The title of the message.
/// </param>
/// <param name="message">
/// The message to show.
/// </param>
/// <param name="isEthereum">
/// If this dialog is related to the ethereum network (true) and as such the ethereum logo should be displayed, otherwise false.
/// </param>
/// <returns>
/// The dialog that was shown.
/// </returns>
public static SiftDialog ShowButtonless(string title, string message, bool isEthereum = false)
{
Func <SiftDialog> uiCallback = () =>
{
SiftDialogViewModel viewModel = new SiftDialogViewModel
{
Title = title,
Message = message,
IsEthereumAnimatedLogoVisible = isEthereum,
IsSiftLogoVisible = !isEthereum,
IsLogButtonVisible = true,
IsNoButtonVisible = false,
IsReturnButtonVisible = false,
IsYesButtonVisible = false
};
SiftDialog dialog = new SiftDialog
{
DataContext = viewModel,
Owner = Application.Current.MainWindow
};
viewModel.CloseRequested += (s, e) => dialog.Close();
dialog.Show();
return(dialog);
};
if (Application.Current.Dispatcher.CheckAccess())
{
return(uiCallback());
}
else
{
return(Application.Current.Dispatcher.Invoke(uiCallback));
}
}
/// <summary>
/// Perform an investment in SIFT using the current UI settings.
/// </summary>
private async Task Invest()
{
// Disable UI
SiftInvestIsEnabled = false;
// Check times
if (DateTime.UtcNow < _ethereumManager.IcoStartDate)
{
SiftDialog.ShowDialog("ICO Not Open", "The ICO for SIFT does not open until " + _ethereumManager.IcoStartDate.ToShortDateString() + " (00:00 GMT). Please wait until this time to invest in SIFT.");
return;
}
else if (DateTime.UtcNow > _ethereumManager.IcoEndDate)
{
SiftDialog.ShowDialog("ICO Not Open", "The ICO for SIFT finished at " + _ethereumManager.IcoStartDate.ToShortDateString() + " (00:00 GMT). As soon as the ICO has been closed you will be able to purchase SIFT via an open marketplace.");
return;
}
// Perform the purchase
SiftPurchaseResponse response = await _ethereumManager.PurchaseSift(SelectedAccount.Address, SiftAmountToPurchase);
if (!response.WasSuccessful)
{
SiftDialog.ShowDialog("SIFT Investment Problem", "Sorry, there was a problem processing your transaction. Your SIFT could not be purchased at this time." + Environment.NewLine + Environment.NewLine + response.FailureReason);
}
else
{
TransactionToMine = _ethereumManager.EnqueueTransactionPendingReceipt(response.TransactionHash);
if (TransactionToMine == null)
{
SiftDialog.ShowDialog("SIFT Delayed Investment", "Your transaction to buy SIFT was successfully sent with hash " + response.TransactionHash + ", but we could not validate the transaction. Your balance should update shortly, but if not please retry the transaction after checking your Ethereum wallet.");
}
else
{
// Hookup to wait to hear the status, or process it immediately if we have it
Action act = () =>
{
TransactionToMine.PropertyChanged += OnTransactionToMinePropertyChanged;
_miningTransactionDialogViewModel = new SiftDialogViewModel
{
IsEthereumAnimatedLogoVisible = true,
IsLogButtonVisible = true,
Title = "Confirming SIFT Investment",
Message = "Your transaction to invest in SIFT has been sent to the Ethereum network. Depending on the current network congestion it may take anywhere between a few seconds and minutes for the transaction to confirm. If the transaction does not confirm within a few minutes you can check your Ethereum wallet for more information." + Environment.NewLine + Environment.NewLine + "Please wait..."
};
_miningTransactionDialog = new SiftDialog
{
DataContext = _miningTransactionDialogViewModel,
Owner = Application.Current.MainWindow
};
_miningTransactionDialogViewModel.CloseRequested += (s, e) =>
{
_miningTransactionDialog.Close();
_miningTransactionDialog = null;
_miningTransactionDialogViewModel = null;
};
_miningTransactionDialog.ShowDialog();
};
if (Application.Current.Dispatcher.CheckAccess())
{
act();
}
else
{
Application.Current.Dispatcher.Invoke(act);
}
}
}
// Update the UI
UpdateSiftPurchaseSettings();
}
