private static void UpdateDynamoDB(string type, string aisleIdentifier, string itemsStr, int customerId)
{
Document document = null;
if ((string.IsNullOrWhiteSpace(aisleIdentifier)) || (string.IsNullOrWhiteSpace(itemsStr)) || (customerId < 1))
{
Console.WriteLine($"Incorrect event type({type}), data aisle({aisleIdentifier}), items({itemsStr}), cusomter({customerId})");
return;
}
string[] items = itemsStr.Split(new char[] { ',' });
for (int j = 0; j < items.Length; j++)
{
items[j] = items[j].Trim();
}
switch (type)
{
case "TurnOff":
foreach (string item in items)
{
document = GetRecommendation(aisleIdentifier, item);
if ((document != null) && (!string.IsNullOrWhiteSpace(document[AisleIdIdentifier].AsString())))
{
DynamoDBEntry customersValue = document[CustomersIdentifier];
if (customersValue is PrimitiveList)
{
List <Primitive> customerIds = customersValue.AsPrimitiveList().Entries;
bool containsCustomer = false;
foreach (Primitive cusId in customerIds)
{
if (cusId.AsInt() == customerId)
{
containsCustomer = true;
break;
}
}
// If this is the only customer interested in that recommendation, delete else update
if (containsCustomer)
{
if (customerIds.Count <= 1)
{
DeleteRecommendation(document);
}
else
{
for (int k = customerIds.Count - 1; k > -1; k--)
{
if (customerIds[k].AsInt() == customerId)
{
customerIds.RemoveAt(k);
break;
}
}
document[CustomersIdentifier] = customerIds;
UpdateRecommendation(document);
}
}
}
}
}
break;
case "Highlight":
case "Restock":
foreach (string item in items)
{
document = GetRecommendation(aisleIdentifier, item);
if ((document != null) && (!string.IsNullOrWhiteSpace(document[AisleIdIdentifier].AsString())))
{
Console.WriteLine("Updating recommendation");
Console.WriteLine($"Event type({type}), data aisle({aisleIdentifier}), items({item}), cusomter({customerId})");
if (type == "Highlight")
{
document[HighlightIdentifier] = new DynamoDBBool(true);
}
else
{
document[RestockIdentifier] = new DynamoDBBool(true);
}
DynamoDBEntry customersValue = document[CustomersIdentifier];
if (customersValue is PrimitiveList)
{
List <Primitive> customerIds = customersValue.AsPrimitiveList().Entries;
if (!customerIds.Contains(customerId))
{
customersValue.AsPrimitiveList().Add(customerId);
}
document[CustomersIdentifier] = customersValue;
}
UpdateRecommendation(document);
}
else
{
Console.WriteLine("Creating recommendation");
Console.WriteLine($"Event type({type}), data aisle({aisleIdentifier}), items({item}), cusomter({customerId})");
if (type == "Highlight")
{
CreateEntry(aisleIdentifier, item, customerId, true, false);
}
else
{
CreateEntry(aisleIdentifier, item, customerId, false, true);
}
}
}
break;
}
}
