/// <summary>
/// Handles Adding Pizza To the temp Cart: pass the PizzaSizeId
/// Used to update Order Items Datasource for UI binding and Tax Computaion
/// Sets ItemIsATopping = false,
/// </summary>
/// <param name="selectedPizzaTopping"></param>
/// <returns></returns>
private void AddPizzaToCartTask(int selectedPizzaSize)
{
PizzaCatalogModel pizza = (from p in _dbContext.Pizzas
join pz in _dbContext.PizzaSizes on p.PizzaSizeId equals pz.Id
where p.PizzaSizeId == selectedPizzaSize
select new PizzaCatalogModel
{
PizzaSize = p.PizzaSize,
Id = p.Id,
PizzaSizeId = p.PizzaSizeId,
Price = p.Price,
}).FirstOrDefault();
List <Cart> list = CartItems != null?CartItems.ToList() : new List <Cart>();
Cart cart = new Cart
{
ItemName = pizza.PizzaSize.Name,
ItemId = pizza.Id,
PizzaSizeId = pizza.PizzaSizeId,
Price = pizza.Price,
ItemIsATopping = false
};
list.Add(cart);
var price = Math.Round(list.Sum(s => s.Price), 2);
this.SubTotalPrice = (price * 0.95);
this.TotalGST = price - SubTotalPrice;
this.TotalPrice = price;
CartItems = (IEnumerable <Cart>)list;
}
private void OnClearExecute(object obj)
{
_chainOneTotal = 0;
_chainTwoTotal = 0;
_chainThreeTotal = 0;
OnPropertyChanged(nameof(ChainOneTotal));
OnPropertyChanged(nameof(ChainTwoTotal));
OnPropertyChanged(nameof(ChainThreeTotal));
_eventAggregator.GetEvent <ClearCartEvent>().Publish(CartItems.ToList());
CartItems.Clear();
ClearLowAndHighCollections();
}
private void UpdateLowAndHighPrices()
{
ChainOneHigh.Clear();
var resultOneHigh = _dataProvider.GetHighPricesInChainOne(CartItems.ToList());
foreach (var item in resultOneHigh)
{
ChainOneHigh.Add(item);
}
ChainOneLow.Clear();
var resultOneLow = _dataProvider.GetLowPricesInChainOne(CartItems.ToList());
foreach (var item in resultOneLow)
{
ChainOneLow.Add(item);
}
ChainTwoHigh.Clear();
var resultTwoHigh = _dataProvider.GetHighPricesInChainTwo(CartItems.ToList());
foreach (var item in resultTwoHigh)
{
ChainTwoHigh.Add(item);
}
ChainTwoLow.Clear();
var resultTwoLow = _dataProvider.GetLowPricesInChainTwo(CartItems.ToList());
foreach (var item in resultTwoLow)
{
ChainTwoLow.Add(item);
}
ChainThreeHigh.Clear();
var resultThreeHigh = _dataProvider.GetHighPricesInChainThree(CartItems.ToList());
foreach (var item in resultThreeHigh)
{
ChainThreeHigh.Add(item);
}
ChainThreeLow.Clear();
var resultThreeLow = _dataProvider.GetLowPricesInChainThree(CartItems.ToList());
foreach (var item in resultThreeLow)
{
ChainThreeLow.Add(item);
}
}
/// <summary>
/// Handles Adding Toppings To the temp Cart: pass the ToppingsId
/// Used to update Order Items Datasource for UI binding and Tax Computaion
/// Sets ItemIsATopping = true,
/// </summary>
/// <param name="selectedPizzaTopping"></param>
/// <returns></returns>
private Task AddToppingsToCartTask(object selectedPizzaTopping)
{
ToppingCatalogModel topping = (from p in _dbContext.Toppings
join tc in _dbContext.ToppingCategories on p.ToppingCategoryId equals tc.Id
join pz in _dbContext.PizzaSizes on p.PizzaSizeId equals pz.Id
where p.Id == (int)selectedPizzaTopping
select new ToppingCatalogModel
{
PizzaSize = p.PizzaSize,
Id = p.Id,
PizzaSizeId = p.PizzaSizeId,
Price = p.Price,
Name = p.Name,
ToppingCategoryId = p.ToppingCategoryId,
ToppingCategory = p.ToppingCategory
}).FirstOrDefault();
List <Cart> list = CartItems != null?CartItems.ToList() : new List <Cart>();
Cart cart = new Cart
{
ItemName = string.Format("{0}-{1}", topping.PizzaSize.Name, topping.Name),
ItemId = topping.Id,
PizzaSizeId = topping.PizzaSizeId,
Price = topping.Price,
ItemIsATopping = true,
};
list.Add(cart);
var price = list.Sum(s => s.Price);
this.SubTotalPrice = (price * 0.95);
this.TotalGST = price - SubTotalPrice;
this.TotalPrice = price;
CartItems = (IEnumerable <Cart>)list;
return(Task.CompletedTask);
}