private async void Intialize()
{
AddBalanceCommand = new Command(AddBalance);
PlusPage = new Command(OpenPlusPage);
MinusPage = new Command(OpenMinusPage);
EditBalanceCommand = new Command(EditBalance);
Balances = JsonConvert.DeserializeObject <ObservableCollection <Balance> >(await DependencyService.Get <IFileWorker>().LoadTextAsync(BalanceFile));
Categories = JsonConvert.DeserializeObject <ObservableCollection <Category> >(await DependencyService.Get <IFileWorker>().LoadTextAsync(CategoriesFile));
Balances.CollectionChanged += Balances_CollectionChanged;
Categories.CollectionChanged += Categories_CollectionChanged;
LastBalance = Balances.Sum(x => x.Count);
}
public Amount TotalIn(Currency currency) => Positions.Sum(p => p.ValueIn(currency)) + Balances.Sum(b => b.ValueIn(currency));
public double GetFullBalanceInUsd() => Balances.Sum(balance =>
{
var(key, value) = balance;
return(value / Rates[key]);
});
