private void InsertLedgerEntry(LedgerEntry ledgerEntry)
{
if (!LedgerEntries.Any())
{
LedgerEntries.Add(ledgerEntry);
}
else
{
var index = GetPreviousLedgerEntryIndex(ledgerEntry);
if (index.HasValue)
{
LedgerEntries.Insert(index.Value, ledgerEntry);
}
else
{
LedgerEntries.Add(ledgerEntry);
}
}
}
public OverviewViewModel(IWalletRepository walletRepository, IAccountLedgerRunner accountLedgerRunner, IAccountLedgerRepository accountLedgerRepository,
IContactRepository contactRepository)
{
_walletRepository = walletRepository;
_accountLedgerRepository = accountLedgerRepository;
_contactRepository = contactRepository;
InitUiProperties();
MessengerInstance.Register <LedgerEntryMessage>(this, (message) =>
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
if (message.Action == LedgerEntryMessageAction.Added)
{
InsertLedgerEntry(message.LedgerEntry);
}
else if (message.Action == LedgerEntryMessageAction.ConfirmationUpdated)
{
var existingLedgerEntry = LedgerEntries.Single(t => t.Equals(message.LedgerEntry));
existingLedgerEntry.IsConfirmed = message.LedgerEntry.IsConfirmed;
}
else if (message.Action == LedgerEntryMessageAction.Removed)
{
LedgerEntries.Remove(LedgerEntries.Single(t => t.Equals(message.LedgerEntry)));
}
});
});
MessengerInstance.Register <BalanceUpdatedMessage>(this, (message) =>
{
DispatcherHelper.CheckBeginInvokeOnUI(() => NxtBalance = message.NqtBalance.NqtToNxt());
});
MessengerInstance.Register <SecretPhraseResetMessage>(this, (message) =>
{
InitUiProperties();
LedgerEntries.Clear();
});
LedgerEntries = new ObservableCollection <LedgerEntry>();
LoadLedgerEntriesFromRepository();
}
private int?GetPreviousLedgerEntryIndex(LedgerEntry ledgerEntry)
{
var previousLedgerEntry = GetPreviousLedgerEntry(ledgerEntry);
return(previousLedgerEntry == null ? null : (int?)LedgerEntries.IndexOf(previousLedgerEntry));
}
private LedgerEntry GetPreviousLedgerEntry(LedgerEntry ledgerEntry)
{
return(LedgerEntries.FirstOrDefault(t => t.TransactionTimestamp.CompareTo(ledgerEntry.TransactionTimestamp) < 0 &&
t.BlockTimestamp.CompareTo(ledgerEntry.BlockTimestamp) < 0));
}
