public List <Model.Products> GetAlikeProducts(int productId)
{
LoadProducts(productId);
List <Model.Reviews.Reviews> reviewsOfObservableProduct = new List <Model.Reviews.Reviews>();
List <Database.Reviews> reviewsFromDatabase = _context.Reviews.Where(x => x.ProductId == productId).OrderBy(y => y.UserId).ToList();
_mapper.Map(reviewsFromDatabase, reviewsOfObservableProduct);
List <Model.Reviews.Reviews> stackOfReviews1 = new List <Model.Reviews.Reviews>();
List <Model.Reviews.Reviews> stackOfReviews2 = new List <Model.Reviews.Reviews>();
List <Model.Products> recommendedProducts = new List <Model.Products>();
foreach (var item in products)
{
foreach (Model.Reviews.Reviews o in reviewsOfObservableProduct)
{
if (item.Value.Where(x => x.UserId == o.UserId).Count() > 0)
{
stackOfReviews1.Add(o);
stackOfReviews2.Add(item.Value.Where(x => x.UserId == o.UserId).First());
}
}
double alike = 0;
alike = GetSimilarity(stackOfReviews1, stackOfReviews2);
if (alike > 0.95)
{
Database.Products element1 = _context.Products.Include(y => y.ProductType).Include(y => y.OutputProducts).Where(x => x.Id == item.Key).FirstOrDefault();
Model.Products element2 = new Model.Products();
element2.Id = element1.Id;
element2.Image = element1.Image;
element2.ImageThumb = element1.ImageThumb;
element2.Name = element1.Name;
element2.Code = element1.Code;
element2.Description = element1.Description;
element2.Price = element1.Price;
element2.ProductTypeId = element1.ProductTypeId;
element2.Status = element1.Status;
recommendedProducts.Add(element2);
}
stackOfReviews1.Clear();
stackOfReviews2.Clear();
}
return(recommendedProducts);
}
private void LoadProducts(int productId)
{
List <Database.Products> activeProizvodi = _context.Products.Include(y => y.ProductType).Include(z => z.OutputProducts).Where(x => x.Id != productId).ToList();
Database.Products observedProduct = _context.Products.Where(x => x.Id == productId).SingleOrDefault();
List <Model.Products> newList = new List <Model.Products>();
_mapper.Map(activeProizvodi, newList);
List <Model.Products> finalList = new List <Model.Products>();
foreach (var item in newList)
{
if (item.ProductTypeId == observedProduct.ProductTypeId)
{
finalList.Add(item);
}
}
foreach (Model.Products a in finalList)
{
List <Database.Reviews> newListReviews = _context.Reviews.Where(x => x.ProductId == a.Id).ToList();
List <Model.Reviews.Reviews> reviews = new List <Model.Reviews.Reviews>();
foreach (var item2 in newListReviews)
{
Model.Reviews.Reviews newReview = new Model.Reviews.Reviews();
newReview.ProductId = item2.ProductId;
newReview.Review = item2.Review;
newReview.UserId = item2.UserId;
newReview.Description = item2.Description;
newReview.Id = item2.Id;
reviews.Add(newReview);
}
if (reviews.Count > 0)
{
products.Add(a.Id, reviews);
}
}
}