/// <summary>
/// 把ProcedToCheckout()傳回來的CreateOrderViewModel轉成對應的Order
/// 因為Order可能是「送餐到府」也有可能是「來店取餐」，所以需要做到判斷
/// </summary>
/// <param name="viewModel"></param>
/// <param name="userId"></param>
/// <returns></returns>
private Order ConvertViewModelToOrder(CreateOrderViewModel viewModel, string userId)
{
Order order = new Order()
{
UserId = userId,
OrderDateTime = DateTime.Now,
RequireDateTime = viewModel.RequireDateTime,
TotalPrice = 0,
PaymentMethodId = viewModel.PaymentMethodId,
CollectionMethodId = viewModel.CollectionMethodId,
Comment = viewModel.Comment
};
if ((viewModel.PaymentMethodId == 1) && (viewModel.IsUserRegAddress == false))
{
order.Address_AddCity = viewModel.AddCity;
order.Address_AddDistrict = viewModel.AddDistrict;
order.Address_AddFull = viewModel.AddFull;
order.Address_PostCode = viewModel.PostCode;
}
else
{
Customer customer = customerRepo.GetSingleEntity(x => x.UserId == User.Identity.Name);
order.Address_AddCity = customer.Address.AddCity;
order.Address_AddDistrict = customer.Address.AddDistrict;
order.Address_AddFull = customer.Address.AddFull;
order.Address_PostCode = customer.Address.PostCode;
}
return order;
}
/// <summary>
/// 把購物車裏面每一筆資料轉換成對應的OrderDetail，用來做購買完成下定單的動作。
/// </summary>
/// <param name="order">主要爲了Order的Id，這樣OrderDetail才知道對應那個</param>
/// <returns>傳回這一筆Order的總金額</returns>
public decimal ShoppingCartToOrderDetails(Order order)
{
var cartItems = GetShoppingCartItems();
decimal totalPrice = 0;
foreach(var item in cartItems)
{
var orderDetail = new OrderDetial()
{
MealId = item.MealId,
OrderId = order.OrderId,
Quantity = item.Quantity,
UnitPrice = item.UnitPrice
};
totalPrice += (orderDetail.UnitPrice * orderDetail.Quantity);
orderDetailRepo.Insert(orderDetail);
}
orderDetailRepo.SaveChanges();
EmptyCart();
return totalPrice;
}
/// <summary>
/// 把Order對應的OrderDetail轉為ShoppingCartViewModel。
/// 主要是當對一個訂單點選「詳細」，裏面OrderDetail其實是使用購物車出現的那種模型
/// </summary>
/// <param name="order"></param>
/// <returns></returns>
public ShoppingCartViewModel PopulateOrderDetails(Order order)
{
var orderDetials = order.OrderDetial;
ShoppingCartViewModel viewModel = new ShoppingCartViewModel()
{
CartItems = new List<ShoppingCart>()
};
decimal totalPrice = 0;
foreach (var item in orderDetials)
{
var orderDetail = new ShoppingCart()
{
MealId = item.MealId,
MealName = item.Meal.MealName,
Quantity = item.Quantity,
UnitPrice = item.UnitPrice,
};
totalPrice += (orderDetail.UnitPrice * orderDetail.Quantity);
viewModel.CartItems.Add(orderDetail);
}
viewModel.TotalPrice = totalPrice;
return viewModel;
}