public async Task HandleAsync(BalanceDecreased @event)
{
if (!await _cardsStore.ExistsAsync(@event.CardId.Value))
{
return;
}
var card = await _cardsStore.GetAsync(@event.CardId.Value);
card.ChangeBalance(@event.Balance.Amount, (Currency)@event.Balance.Currency);
card.ChangeTimestamp(_clock.Now.DateTime);
await _cardsStore.UpdateAsync(card);
_logger.LogDebug($"Card {@event.UserId} balance decreased.");
}
private void When(BalanceDecreased @event)
{
_balance = @event.Balance;
}