async void Handle_ItemTapped(object sender, ItemTappedEventArgs e)
{
if (e.Item == null || !(e.Item is LessonInfo))
{
return;
}
LessonInfo selectedLesson = (LessonInfo)e.Item;
//Deselect Item
((ListView)sender).SelectedItem = null;
await Navigation.PushAsync(new LessonSettingsPage(selectedLesson, timetable.EventTypes(selectedLesson.Lesson.ID).ToList()));
}
private string GetStatistics()
{
IEnumerable <Event> events = timetableInfo.Events.Where(e => e.Lesson == LessonInfo.Lesson);
var statForTypes = timetableInfo.EventTypes(LessonInfo.Lesson.ID).OrderBy(et => et.ShortName).Select(et =>
{
var eventsWithType = events.Where(e => e.Type == et).ToList();
return($"{et.ShortName}:\n" +
$"- {LN.EventsTotal} {eventsWithType.Count}, {eventsWithType.Count(e => e.Start > DateTime.Now)} {LN.EventsLeft}\n" +
$"- {LN.NextEvent}: {eventsWithType.FirstOrDefault(e => e.Start > DateTime.Now)?.Start.ToShortDateString() ?? "-" }\n" +
$"- {LN.Teachers}: {string.Join(", ", eventsWithType.SelectMany(e => e.Teachers).Distinct().Select(t => t.ShortName).OrderBy(tn => tn).DefaultIfEmpty("-"))}");
});
return(string.Join("\n", statForTypes));
}