public async Task <QuoteValueCriterionSubscriptionResponse> Process()
{
decimal currentValue;
try
{
currentValue = await _exchangeRatesProvider.GetAssetValue(_asset);
var conditionAlreadyApplies = _request.Predicate(currentValue);
if (conditionAlreadyApplies)
{
return(new QuoteValueCriterionSubscriptionResponse
{
Success = false,
ResultMessage = string.Format(MessageTexts.ConditionAlreadySatisfied, currentValue)
});
}
var alreadySubscribed = await _subscriptionsManager.AlreadySubscribed(_asset, _request.ChatId, _request.Predicate);
if (alreadySubscribed)
{
return(new QuoteValueCriterionSubscriptionResponse
{
Success = true,
ResultMessage = MessageTexts.AlreadySubscribed
});
}
}
catch (Exception)
{
return(new QuoteValueCriterionSubscriptionResponse
{
Success = false,
ResultMessage = MessageTexts.ConditionCheckFailed
});
}
try
{
await _subscriptionsManager.Subscribe(_asset, _request.ChatId, _request.Predicate);
return(new QuoteValueCriterionSubscriptionResponse
{
Success = true,
ResultMessage = string.Format(MessageTexts.SubscribedSuccessfully, currentValue),
CurrentPrice = currentValue
});
}
catch (Exception e)
{
return(new QuoteValueCriterionSubscriptionResponse
{
Success = false,
ResultMessage = $"{MessageTexts.SubscriptionFailed}. {e.Message}"
});
}
}
