public WalletBalanceChartTileViewModel(HistoryViewModel history)
{
_history = history;
_unfilteredTransactions = history.UnfilteredTransactions;
Animator = new LineChartAnimatorViewModel();
Placeholder = new LineChartPlaceholderViewModel();
TimePeriodOptions = new ObservableCollection <TimePeriodOptionViewModel>();
foreach (var item in (TimePeriodOption[])Enum.GetValues(typeof(TimePeriodOption)))
{
TimePeriodOptions.Add(new TimePeriodOptionViewModel(item, UpdateSample)
{
IsSelected = item == TimePeriodOption.ThreeMonths
});
}
_history.WhenAnyValue(x => x.IsTransactionHistoryEmpty)
.Subscribe(x => IsEmptyWallet = x);
}