/// <summary>
/// Evaluation product prices.
/// Will get either all prices or one price per currency depending on the settings in evalContext.
/// </summary>
/// <param name="evalContext"></param>
/// <returns></returns>
public virtual async Task <IEnumerable <Price> > EvaluateProductPricesAsync(PriceEvaluationContext evalContext)
{
if (evalContext == null)
{
throw new ArgumentNullException(nameof(evalContext));
}
if (evalContext.ProductIds == null)
{
throw new MissingFieldException("ProductIds");
}
var result = new List <Price>();
Price[] prices;
using (var repository = _repositoryFactory())
{
//Get a price range satisfying by passing context
var query = repository.Prices.Include(x => x.Pricelist)
.Where(x => evalContext.ProductIds.Contains(x.ProductId))
.Where(x => evalContext.Quantity >= x.MinQuantity || evalContext.Quantity == 0);
if (evalContext.PricelistIds.IsNullOrEmpty())
{
evalContext.PricelistIds = (await EvaluatePriceListsAsync(evalContext)).Select(x => x.Id).ToArray();
}
query = query.Where(x => evalContext.PricelistIds.Contains(x.PricelistId));
// Filter by date expiration
// Always filter on date, so that we limit the results to process.
var certainDate = evalContext.CertainDate ?? DateTime.UtcNow;
query = query.Where(x => (x.StartDate == null || x.StartDate <= certainDate) &&
(x.EndDate == null || x.EndDate > certainDate));
var queryResult = await query.AsNoTracking().ToArrayAsync();
prices = queryResult.Select(x => x.ToModel(AbstractTypeFactory <Price> .TryCreateInstance())).ToArray();
}
//Apply pricing filtration strategy for found prices
result.AddRange(_pricingPriorityFilterPolicy.FilterPrices(prices, evalContext));
//Then variation inherited prices
if (_productService != null)
{
var productIdsWithoutPrice = evalContext.ProductIds.Except(result.Select(x => x.ProductId).Distinct()).ToArray();
//Try to inherit prices for variations from their main product
//Need find products without price it may be a variation without implicitly price defined and try to get price from main product
if (productIdsWithoutPrice.Any())
{
var variations = (await _productService.GetByIdsAsync(productIdsWithoutPrice, ItemResponseGroup.ItemInfo.ToString())).Where(x => x.MainProductId != null).ToList();
evalContext = evalContext.Clone() as PriceEvaluationContext;
evalContext.ProductIds = variations.Select(x => x.MainProductId).Distinct().ToArray();
if (!evalContext.ProductIds.IsNullOrEmpty())
{
var inheritedPrices = await EvaluateProductPricesAsync(evalContext);
foreach (var inheritedPrice in inheritedPrices)
{
foreach (var variation in variations.Where(x => x.MainProductId == inheritedPrice.ProductId))
{
var variationPrice = inheritedPrice.Clone() as Price;
//Reset id for correct override price in possible update
variationPrice.Id = null;
variationPrice.ProductId = variation.Id;
result.Add(variationPrice);
}
}
}
}
}
return(result);
}
/// <summary>
/// Evaluation product prices.
/// Will get either all prices or one price per currency depending on the settings in evalContext.
/// </summary>
/// <param name="evalContext"></param>
/// <returns></returns>
public virtual IEnumerable <coreModel.Price> EvaluateProductPrices(coreModel.PriceEvaluationContext evalContext)
{
if (evalContext == null)
{
throw new ArgumentNullException(nameof(evalContext));
}
if (evalContext.ProductIds == null)
{
throw new MissingFieldException(nameof(evalContext.ProductIds));
}
var retVal = new List <coreModel.Price>();
coreModel.Price[] prices;
using (var repository = _repositoryFactory())
{
repository.DisableChangesTracking();
//Get a price range satisfying by passing context
var query = repository.Prices.Include(x => x.Pricelist)
.Where(x => evalContext.ProductIds.Contains(x.ProductId))
.Where(x => evalContext.Quantity >= x.MinQuantity || evalContext.Quantity == 0);
if (evalContext.PricelistIds.IsNullOrEmpty())
{
evalContext.PricelistIds = EvaluatePriceLists(evalContext).Select(x => x.Id).ToArray();
}
// Filter by date expiration
// Always filter on date, so that we limit the results to process.
var certainDate = evalContext.CertainDate ?? DateTime.UtcNow;
query = query.Where(x => (x.StartDate == null || x.StartDate <= certainDate) &&
(x.EndDate == null || x.EndDate > certainDate));
prices = query.ToArray().Select(x => x.ToModel(AbstractTypeFactory <coreModel.Price> .TryCreateInstance())).ToArray();
}
var priceListOrdererList = evalContext.PricelistIds?.ToList();
//Apply pricing filtration strategy for found prices
retVal.AddRange(_pricingPriorityFilterPolicy.FilterPrices(prices, evalContext));
//Then variation inherited prices
if (_productService != null)
{
var productIdsWithoutPrice = evalContext.ProductIds.Except(retVal.Select(x => x.ProductId).Distinct()).ToArray();
//Variation price inheritance
//Need find products without price it may be a variation without implicitly price defined and try to get price from main product
if (productIdsWithoutPrice.Any())
{
var variations = _productService.GetByIds(productIdsWithoutPrice, Domain.Catalog.Model.ItemResponseGroup.ItemInfo).Where(x => x.MainProductId != null).ToList();
evalContext.ProductIds = variations.Select(x => x.MainProductId).Distinct().ToArray();
foreach (var inheritedPrice in EvaluateProductPrices(evalContext))
{
foreach (var variation in variations.Where(x => x.MainProductId == inheritedPrice.ProductId))
{
var jObject = JObject.FromObject(inheritedPrice);
var variationPrice = (coreModel.Price)jObject.ToObject(inheritedPrice.GetType());
//For correct override price in possible update
variationPrice.Id = null;
variationPrice.ProductId = variation.Id;
retVal.Add(variationPrice);
}
}
}
}
return(retVal);
}
