private async Task<PricingInfo> ProcessPriceChangesAsync(IOrder order, PriceInfoObject pricesInfoObject)
{
var criterias = _criteriaFactory.GetCriterias(order);
if (!criterias.Any())
return await Task.FromResult(new PricingInfo { Result = StatusEnum.Changed, Message = "Цена изменилась" });
var oldPricesInfoObject = GetPricesInfo(order);
var criteriaResultsTask = criterias.OrderBy(criteria => criteria.Priority).Select(criteria => new { criteria = criteria, Task = criteria.CheckCriteriaAsync(oldPricesInfoObject, pricesInfoObject) } ).ToList();
await Task.WhenAll(criteriaResultsTask.Select(arg => arg.Task));
var mostImportantCriteria = criteriaResultsTask.FirstOrDefault(arg => arg.Task.Exception==null && arg.Task.Result);
if (mostImportantCriteria == null)
throw new AggregateException(criteriaResultsTask.Select(arg => arg.Task.Exception));
var makeDecisionTasks = _decisionFactory.GetDecisions(mostImportantCriteria.criteria).Select(decision => decision.ProcessDecisionAsync(order));
await Task.WhenAll(makeDecisionTasks);
return await Task.FromResult(new PricingInfo { Result = StatusEnum.Changed, Message = "Цена изменилась" });
}
public Task<bool> CheckCriteriaAsync(PriceInfoObject oldPriceInfo, PriceInfoObject newPriceInfo)
{
CheckCount++;
return Task.FromResult(true);
}
private double CalculateDelta(IOrder order, PriceInfoObject pricesInfoObject)
{
return order.IsHotelBooked == false ?
order.Price - pricesInfoObject.AviaPricesInfo.Price - pricesInfoObject.HotelPricesInfo.Price
: order.Price - pricesInfoObject.AviaPricesInfo.Price;
}