public void Add(FoodItem item)
{
Items = Items ?? new List <FoodItem>();
Items.Add(item);
CartUpdated?.Invoke(item, Items.Sum(i => i.Price));
}
public async Task ClearAsync()
{
await shoppingCartClient.ClearShoppingCartAsync();
items.Clear();
CartUpdated?.Invoke(this, EventArgs.Empty);
}
public async Task RemoveItemAsync(int itemId)
{
await shoppingCartClient.RemoveShoppingCartItemAsync(itemId);
ShoppingCartItem?item = items.FirstOrDefault(i => i.Id == itemId);
if (item != null)
{
items.Remove(item);
}
CartUpdated?.Invoke(this, EventArgs.Empty);
}
public async Task InitializeAsync()
{
ShoppingCart?cart = await shoppingCartClient.GetShoppingCartAsync();
items.Clear();
foreach (ShoppingCartItem?item in cart.Items)
{
items.Add(item);
}
CartUpdated?.Invoke(this, EventArgs.Empty);
}
public async Task UpdateItemQuantityAsync(int itemId, int quantity)
{
await shoppingCartClient.UpdateItemQuantityAsync(itemId, quantity);
ShoppingCartItem?item = items.FirstOrDefault(i => i.Id == itemId);
if (item != null)
{
if (quantity == 0)
{
items.Remove(item);
}
else
{
item.Quantity = quantity;
}
}
CartUpdated?.Invoke(this, EventArgs.Empty);
}
public async Task AddItemAsync(int?productId, int?productVariantId, int?offerId, int?priceId, int quantity = 1)
{
if (quantity <= 0)
{
throw new ArgumentOutOfRangeException(nameof(quantity));
}
ShoppingCartItem?item = await shoppingCartClient.AddShoppingCartItemAsync(productId, productVariantId, offerId, priceId, quantity);
ShoppingCartItem?item2 = items.FirstOrDefault(i => i.Id == item.Id);
if (item2 == null)
{
items.Add(item);
}
else
{
int index = items.TakeWhile(i => i.Id != item.Id).Count();
items[index] = item;
}
CartUpdated?.Invoke(this, EventArgs.Empty);
}
public void Clear()
{
Items?.Clear();
CartUpdated?.Invoke(null, 0);
}
public void Remove(FoodItem item)
{
Items?.Remove(item);
CartUpdated?.Invoke(item, Items.Sum(i => i.Price));
}
private void OnCartUpdated()
{
CartUpdated?.Invoke(this, EventArgs.Empty);
}
public void NotifyCartUpdated() => CartUpdated?.Invoke();
