public ManageLessonsPage(SavedGroup group)
{
InitializeComponent();
Title += $": {group.Name}";
this.group = group;
EventList eventList = EventsDataStore.GetEventsLocal(group.ID);
if (eventList == null)
{
return;
}
List <LessonSettings> lessonSettings = LessonSettingsDataStore.GetLessonSettings(group.ID);
lessons = new ObservableCollection <LessonSettings>
(
eventList.Lessons()
.Select(lesson =>
{
LessonSettings res = lessonSettings.FirstOrDefault(ls => ls.LessonName == lesson)
?? new LessonSettings {
LessonName = lesson
};
res.EventTypes = eventList.EventTypes(lesson).ToList();
return(res);
})
.OrderBy(lesson => lesson.LessonName)
);
LessonsList.ItemsSource = lessons;
if (lessons.Count == 0)
{
NoSourceLayout.IsVisible = true;
}
MessagingCenter.Subscribe <LessonSettingsPage, LessonSettings>(this, "OneLessonSettingsChanged", (sender, newLessonSettings) =>
{
for (int i = 0; i < lessons.Count; i++)
{
if (lessons[i].LessonName == newLessonSettings.LessonName)
{
lessons[i] = newLessonSettings;
lessons[i].NotifyChanged();
break;
}
}
});
}
private async Task UpdateTimetable(params SavedGroup[] savedGroups)
{
if (savedGroups == null || savedGroups.Length == 0 || CheckUpdateTimetableRights() == false)
{
return;
}
GroupsLayout.IsEnabled = false;
ProgressLayout.IsVisible = true;
await Task.Factory.StartNew(() =>
{
string result;
if (EventsDataStore.GetEventsFromCist(Config.TimetableFromDate, Config.TimetableToDate, savedGroups) != null)
{
foreach (SavedGroup group in savedGroups)
{
group.LastUpdated = DateTime.Now;
}
GroupsDataStore.UpdateSaved(groups.ToList());
if (savedGroups.Length == 1)
{
result = $"Расписание группы {savedGroups[0].Name} успешно обновлено.";
}
else
{
result = $"Расписание успешно обновлено для групп:{Environment.NewLine}{string.Join(", ", savedGroups.Select(g => g.Name))}";
}
}
else
{
result = "Произошла ошибка, пожалуйста, попробуйте позже.";
}
Device.BeginInvokeOnMainThread(() =>
{
DisplayAlert("Обновление расписания", result, "Ok");
ProgressLayout.IsVisible = false;
GroupsLayout.IsEnabled = true;
});
});
}