private async Task UpdateCheckedTodoItem(Groceries item)
{
await _groceriesTable.UpdateAsync(item);
_items.Remove(item);
ListItems.Focus(FocusState.Unfocused);
ButtonRefresh_Click(null, null);
}
private async Task ResolveConflict(Groceries localVersion, Groceries azuresVersion)
{
if(azuresVersion == null)
{
await _groceriesTable.DeleteAsync(localVersion);
return;
}
localVersion.Version = azuresVersion.Version;
// this way we have a number to add to , sign will be good
int delta = localVersion.Quantity - localVersion.Before;
localVersion.Quantity = azuresVersion.Quantity + delta;
localVersion.Before = 0;
if(localVersion.Quantity <= 0)
{
}
await _groceriesTable.UpdateAsync(localVersion);
}
private async Task InsertTodoItem(Groceries todoItem)
{
await _groceriesTable.InsertAsync(todoItem);
_items.Add(todoItem);
}
private async void ButtonSave_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrEmpty(TextInput.Text) && string.IsNullOrEmpty(QuantityInput.Text)) return;
// If item exists, just change quantity
var existingItem = await FindGroceryByName(TextInput.Text);
if (existingItem != null)
{
try
{
if(existingItem.Before == 0)
{
existingItem.Before = existingItem.Quantity;
}
var quantity = Convert.ToInt32(QuantityInput.Text);
existingItem.Quantity = quantity;
}
catch (Exception)
{
QuantityInput.Text = existingItem.Quantity.ToString();
return;
}
if(existingItem.Quantity > 0)
{
await UpdateCheckedTodoItem(existingItem);
}
else
{
_items.Remove(existingItem);
await _groceriesTable.DeleteAsync(existingItem);
}
return;
}
try
{
var quantity = Convert.ToInt32(QuantityInput.Text);
if (quantity <= 0) return;
var todoItem = new Groceries {Id = Guid.NewGuid().ToString("N"), Name = TextInput.Text, Quantity = quantity, OwnerUserId = _user.UserId, Before = quantity};
await InsertTodoItem(todoItem);
}
catch (Exception) {}
finally
{
TextInput.Text = string.Empty;
QuantityInput.Text = "0";
}
}