public async Task <Object> GetChange()
{
return(await Task.Run(() =>
{
try
{
Double sum = _ctx.PurchaseInfo.Item.PayedSum;
Double sumToMessage = sum;
PurseBase coinsToChange = MakeChange(sum);
MakeUpdatesInPurses(coinsToChange);
return new
{
error = String.Empty,
message = String.Format("Сдача в размере {0} выдана!", sumToMessage)
};
}
catch (Exception e)
{
return new
{
error = e.Message,
message = String.Empty
};
}
}));
}
/// <summary>
/// Добавляет изменения в "БД"
/// </summary>
/// <param name="coinsToChange">Монеты для сдачи</param>
protected void MakeUpdatesInPurses(PurseBase coinsToChange)
{
foreach (var coin in coinsToChange.Coins)
{
_ctx.UserPurse.Item.Coins.First(x => x.Value == coin.Value).Count += coin.Count;
_ctx.CoffeMachinePurse.Item.Coins.First(x => x.Value == coin.Value).Count -= coin.Count;
}
_ctx.PurchaseInfo.Item.PayedSum = 0;
_ctx.Save(_path);
}
public void MakeUpdatesInPursesForTests(PurseBase coinsToChange)
{
this.MakeUpdatesInPurses(coinsToChange);
}
/// <summary>
/// Добавляет изменения в "БД"
/// </summary>
/// <param name="coinsToChange">Монеты для сдачи</param>
protected void MakeUpdatesInPurses(PurseBase coinsToChange)
{
foreach (var coin in coinsToChange.Coins)
{
_ctx.UserPurse.Item.Coins.First(x => x.Value == coin.Value).Count += coin.Count;
_ctx.CoffeMachinePurse.Item.Coins.First(x => x.Value == coin.Value).Count -= coin.Count;
}
_ctx.PurchaseInfo.Item.PayedSum = 0;
_ctx.Save(_path);
}
public void MakeUpdatesInPursesForTests(PurseBase coinsToChange)
{
this.MakeUpdatesInPurses(coinsToChange);
}
