public bool IsProductEquals(CartLine line)
{
if (SellerId != line.SellerId)
{
return(false);
}
if (ProductTypeId != line.ProductTypeId)
{
return(false);
}
//check Attributes length
if ((Attributes?.Count() ?? 0) != (Attributes?.Count() ?? 0))
{
return(false);
}
//check Attribute key and value
if (Attributes != null || Attributes.Count != 0)
{
foreach (var attribute in Attributes)
{
if (line.Attributes.TryGetValue(attribute.Key, out string value))
{
if (attribute.Value != value)
{
return(false);
}
}
else
{
return(false);
}
}
}
return(true);
}
public virtual void AddItem(int sellerId, int productTypeId, short quantity, IDictionary <string, string> attributes)
{
CartLine newLine = new CartLine
{
SellerId = sellerId,
ProductTypeId = productTypeId,
Quantity = quantity,
Attributes = attributes
};
CartLine line = Lines
.FirstOrDefault(l => l.IsProductEquals(newLine));
if (line == null)
{
Lines.Add(newLine);
}
else
{
line.Quantity += quantity;
}
}