public void Recalculate(string[] productIds)
{
var reviews = _customerReviewService.GetByProductIds(productIds);
var activeReviews = reviews.Where(x => x.IsActive).ToArray();
foreach (var productId in productIds)
{
var productReviews = activeReviews.Where(x => x.ProductId == productId);
var rating = _ratingCalculator.CalcRating(productReviews);
var productRating = AbstractTypeFactory <ProductRating> .TryCreateInstance();
productRating.ProductId = productId;
productRating.Rating = rating;
_productRatingService.SaveProductRating(productRating);
}
}