public DaySummaryViewModel(IViewModelProvider viewModelProvider, IDaySummary daySummary)
{
_viewModelProvider = viewModelProvider;
_date = daySummary.Date;
_displayDate = _date.Date.ToShortDateString();
_timeAvailable = daySummary.TimeAvailable;
_timeSpent = daySummary.TimeSpent;
_tasks = new ObservableCollection <ITaskViewModel>(_viewModelProvider.GetTaskModels(daySummary.Tasks));
_isToday = Date == DateTime.Now.Date;
}
