public void CalculateScoreForProduct(int productUID, string database)
{
Product initialProduct = db.GetProduct(productUID, database).Result;
if (initialProduct != null)
{
Dictionary <int, double> productScores = new Dictionary <int, double>();
BsonArray visitors = db.GetVisitorsForProduct(productUID, database).Result;
foreach (BsonString visitorId in visitors.Values)
{
List <int> visitorProducts = db.GetVisitorProducts(visitorId.AsString, database).Result;
if (visitorProducts != null)
{
foreach (int product in visitorProducts)
{
if (productScores.Keys.Contains(product))
{
productScores[product]++;
}
else
{
productScores.Add(product, 1);
}
}
}
}
Dictionary <int, double> sortedScores = CountAndSortBehavior(productScores);
if (sortedScores.Count > 100)
{
//Only calculate top 100 product scores
for (int i = 0; i < 100; i++)
{
int productId = sortedScores.ElementAt(i).Key;
Product compareProduct = db.GetProduct(productId, database).Result;
sortedScores[productId] = CalculateSimilarityScore(initialProduct, compareProduct, sortedScores[productId]);
}
}
else
{
foreach (int productId in productScores.Keys)
{
Product compareProduct = db.GetProduct(productId, database).Result;
sortedScores[productId] = CalculateSimilarityScore(initialProduct, compareProduct, sortedScores[productId]);
}
}
sortedScores = CountAndSortBehavior(sortedScores);
Dictionary <int, double> top10ProductsAndScores = sortedScores.Take(10).ToDictionary(pair => pair.Key, pair => pair.Value);
db.InsertScore(initialProduct.ProductUID, top10ProductsAndScores, database);
Debug.WriteLine("Product " + initialProduct.ProductUID + " updated");
}
}
