public EventsViewModel()
{
Title = "Event";
Items = new ObservableCollection <Event>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
MessagingCenter.Subscribe <NewEventPage, Event>(this, "AddEvent", async(obj, item) =>
{
var _item = item as Event;
Items.Add(_item);
await EventDataStore.SaveItemAsync(_item);
});
MessagingCenter.Subscribe <EventsPage, Event>(this, "DeleteEvent", async(obj, item) =>
{
try
{
var _item = item as Event;
var itemObj = Items.AsEnumerable().ToList().Where(x => x.Id == _item.Id).FirstOrDefault();
Items.Remove(itemObj);
EventDataStore.DeleteItemAsync(_item.Id);
}
catch (Exception ex)
{
}
});
MessagingCenter.Subscribe <EditEventPage, Event>(this, "EditEvent", async(obj, item) =>
{
try
{
var _item = item as Event;
var itemObj = Items.Where(x => x.Id.Equals(item.Id)).FirstOrDefault();
itemObj.Name = _item.Name;
itemObj.Description = _item.Description;
itemObj.IsRepeat = _item.IsRepeat;
itemObj.UpdatedDate = _item.UpdatedDate;
await EventDataStore.SaveItemAsync(_item);
}
catch (Exception ex)
{
}
});
}
async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
Items.Clear();
var items = await EventDataStore.GetItemsAsync();
foreach (var item in items)
{
if (item.RepeatTypeId == (int)RepeatTypeEnum.Monthly && item.EventDate.Day == DateTime.Now.Day)
{ //Monthly -> day
Items.Add(item);
}
else if (item.RepeatTypeId == (int)RepeatTypeEnum.Annual && item.EventDate.Day == DateTime.Now.Day && item.EventDate.Day == DateTime.Now.Day)
{ //Annual -> day & month
Items.Add(item);
}
else if (item.RepeatTypeId == (int)RepeatTypeEnum.NoRepeat && item.EventDate < DateTime.Now)
{ //no repeat then delete entries < eventdate
EventDataStore.DeleteItemAsync(item.Id);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
