// Reduces the amount of the given item by one or deletes the last remaining one from the cart
private void TakeOutOfCart(ShoppingCartEntry cartEntry)
{
foreach (var item in _listArticles)
{
if (item.GetArticleNumber() != cartEntry.GetArticleNumber())
{
continue; // If the item doesn't match -> continue searching
}
if (item.Amount > 1)
{
item.DeleteOne(); // If there is more than 1, reduce the amount by 1
OnEntryChanged(new NewEntryEventArgs(NewEntryEventArgs.ShoppingCartAction.Remove, cartEntry)); // Trigger event
Logger.GetInstance().Log("Item removed from ShoppingCart");
}
else
{
_listArticles.Remove(item); // If there is only one remove the whole item from the list
OnEntryChanged(new NewEntryEventArgs(NewEntryEventArgs.ShoppingCartAction.Remove, cartEntry)); // Trigger event
Logger.GetInstance().Log("Item removed from ShoppingCart");
}
return; // We can jump out, because we have already found the item (only distinct items in the cart)
}
}
// Add 1 item to the cart (increase amount if article is already inside or
private void AddToCart(ShoppingCartEntry newEntry)
{
try
{
// Search in _listArticles, if article is already in the cart
foreach (var item in _listArticles)
{
if (item.GetArticleNumber() == newEntry.GetArticleNumber())
{
item.AddOne(); // If found, add one item (automatically recalculates the price too)
OnEntryChanged(
new NewEntryEventArgs(NewEntryEventArgs.ShoppingCartAction.Add, newEntry)); // Trigger event
Logger.GetInstance().Log($"Amount changed for '{item.GetArticleNumber()}'");
return;
}
}
_listArticles.Add(newEntry);
OnEntryChanged(new NewEntryEventArgs(NewEntryEventArgs.ShoppingCartAction.Add,
newEntry)); // Trigger event
}
catch (Exception e)
{
Logger.GetInstance().Log("--Exception caught in SC: " + e.Message);
}
}