public async Task <List <ShoppingCart> > GetShoppingCarts(string userId, int?restaurantId)
{
var userEntity = _userService.Get(userId);
if (userEntity is null)
{
throw new ArgumentNullException("User doesn't exist");
}
var restaurantEntity = _restaurantService.Get(restaurantId);
if (restaurantEntity is null)
{
throw new ArgumentNullException("Restaurant doesn't exist");
}
return(await _shoppingBasketRepository.GetShoppingCarts(x => x.UserId == userId && x.RestaurantId == restaurantId));
}
public async Task <int> CreateOrder(Order order, string userId, int restaurantId)
{
var productsFromBasket = await _shoppingBasketRepository.GetShoppingCarts(s => s.UserId == userId && s.RestaurantId == restaurantId);
var orderItems = productsFromBasket.Select(x => new OrderItem
{
Count = x.Count,
DishId = x.DishId,
});
order.CreateAt = DateTime.Now;
order.TotalGrossPrice = productsFromBasket.Sum(x => x.Dish.GrossPrice * x.Count);
order.TotalQuantity = productsFromBasket.Sum(x => x.Count);
order.UserId = userId;
order.OrderItems = orderItems.ToList();
await _orderRepository.Create(order);
return(order.Id);
}