// function that gets the new diginote digged and the new time needed to dig another diginote
internal void GetDiginoteDigged()
{
try
{
if (user != null) // if not already logged out
{
// add new diginote
Diginotes.Add(diginoteSystem.DigDiginote(user));
// notify update because we have a new diginote
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.Diginotes, null), "");
// get new time needed to dig
DigTime = diginoteSystem.GetDigtime();
}
}
catch
{
// couldn't reach server
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.NoServer, null), "");
}
}
// handler for incoming messenger notifications
private void ChangeHandler(ChangeArgs args)
{
if (args.User1 == null || args.User1 == user.Username || args.User2 == user.Username) // if the logged user can receive the message
{
if (args.Type == ChangeType.QuotationUp || args.Type == ChangeType.QuotationDown) // quotation changed
{
App.Current.Dispatcher.Invoke((System.Action)(() =>
{
// set new quotation value
Quotation = args.QuotationValue;
// notify change
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.Quotation, null), "");
// add new stat
QuotationEvolution.Add(new DataPoint(DateTimeAxis.ToDouble(args.QuotationStat.first), args.QuotationStat.second));
if (Orders.Count > 0 && Orders[0].State == OrderState.Pending) // if last order is pending
{
if (args.User2 != user.Username &&
((args.Type == ChangeType.QuotationUp && Orders[0].Type == OrderType.Buy) ||
(args.Type == ChangeType.QuotationDown && Orders[0].Type == OrderType.Sell)))
// if the new quotation needs to be appproved by the user
{
// get last order
Order lastOrder = Orders[0];
// remove and set new state
Orders.Remove(lastOrder);
lastOrder.State = OrderState.WaitApproval;
// add to the list, we need to remove and add to cast the listview update
Orders.Insert(0, lastOrder);
// notify main window to show approve dialog
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.AskApprove, null), "");
}
}
}));
}
else if (args.Type == ChangeType.Transaction) // transaction occurred
{
App.Current.Dispatcher.Invoke((System.Action)(() =>
{
// get last order
Order lastOrder = Orders[0];
// remove order
Orders.Remove(lastOrder);
if (args.User1 == user.Username) // if the user logged sold the diginotes
{
// insert the changed order, we need to remove and add to cast the listview update
Orders.Insert(0, args.Order1);
// look for and remove the diginotes traded
List <DiginoteInfo> toRemove = new List <DiginoteInfo>();
foreach (DiginoteInfo dInfo in Diginotes)
{
if (args.DiginotesTraded.Exists(d => d.Serial == dInfo.Serial))
{
toRemove.Add(dInfo);
}
}
foreach (DiginoteInfo dInfo in toRemove)
{
Diginotes.Remove(dInfo);
}
}
else if (args.User2 == user.Username) // if the user logged bought the diginotes
{
// insert the changed order, we need to remove and add to cast the listview update
Orders.Insert(0, args.Order2);
// add the diginotes traded
args.DiginotesTraded.ForEach(Diginotes.Add);
}
// update transaction statistics
if (TransactionsPerMin.Count > 0)
{
DataPoint lastStatItem = TransactionsPerMin[TransactionsPerMin.Count - 1];
if (lastStatItem.X == DateTimeAxis.ToDouble(args.TransactionStat.first))
{
TransactionsPerMin.Remove(lastStatItem);
lastStatItem.Y++;
TransactionsPerMin.Add(lastStatItem);
}
else
{
TransactionsPerMin.Add(new DataPoint(DateTimeAxis.ToDouble(args.TransactionStat.first), args.TransactionStat.second));
}
}
else
{
TransactionsPerMin.Add(new DataPoint(DateTimeAxis.ToDouble(args.TransactionStat.first), args.TransactionStat.second));
}
// notify changes
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.Transaction, null), "");
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.Diginotes, null), "");
// if the order of the logged user wasn't totally satifiest, notify main window to show the dialog to ask for a new quotation
if (Orders[0].Quantity != 0)
{
if (Orders[0].Type == OrderType.Buy)
{
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.AskQuotation, null), "+" + Quotation);
}
else
{
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.AskQuotation, null), "-" + Quotation);
}
}
}));
}
else if (args.Type == ChangeType.Login) // login occurred
{
// set data
NumUsers = args.NumUsers;
NumLoggedUsers = args.NumLoggedUsers;
NumSysDiginotes = args.NumSysDiginotes;
// notify update
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.SystemInfo, null), "");
}
else if (args.Type == ChangeType.Logout) // logout occurred
{
// set data
NumLoggedUsers = args.NumLoggedUsers;
// notify update
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.SystemInfo, null), "");
}
else if (args.Type == ChangeType.SysDiginotes) // update on number of diginotes in system
{
// set data
NumSysDiginotes = args.NumSysDiginotes;
// notify update
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.SystemInfo, null), "");
}
else if (args.Type == ChangeType.OfferDemand) // update in number of diginotes to buy or sell
{
// set data
DiginotesOffer = args.DiginotesOffer;
DiginotesDemand = args.DiginotesDemand;
// notify update
NotificationMessenger.sendNotification(this, new NotificationType(NotifType.SystemInfo, null), "");
}
}
}
