public ErrorModel AddDishToMenu(AddDishModel model)
{
var errors = new ErrorModel();
if (model == null)
{
errors.Messages.Add("Invalid data.");
return errors;
}
var dish = model.DishToAdd;
if (dish == null)
{
errors.Messages.Add("No dish found to add.");
return errors;
}
var provider = DbContext.GetProviders().SingleOrDefault(p => p.ProviderId == model.ProviderId);
if (provider == null || provider.ProviderStatus != ProviderStatus.Verified)
{
errors.Messages.Add("Cannot add dish for any address not verified provider.");
return errors;
}
var newDish = dish.ToEntity();
newDish.ProviderId = model.ProviderId;
newDish.Available = true;
try
{
DbContext.SaveDishes(new List<DishEntity>{newDish});
return errors;
}
catch (Exception ex)
{
errors.Messages.Add(ex.Message);
return errors;
}
}
public ErrorModel UpdateOrderItemStatus(UpdateOrderItemModel updateModel)
{
var errors = new ErrorModel();
if (updateModel == null)
{
errors.Messages.Add("Invalid data. Please try again!");
return errors;
}
try
{
DbContext.UpdateOrderItemStatus(updateModel.OrderId, updateModel.DishId, updateModel.ProviderId, updateModel.TargetStatus);
}
catch (Exception ex)
{
errors.Messages.Add(ex.Message);
}
return errors;
}
public ErrorModel RemoveDishFromMenu(RemoveDishModel removeModel)
{
var errors = new ErrorModel();
if (removeModel == null)
{
errors.Messages.Add("Invalid data.");
return errors;
}
var dishId = removeModel.DishId;
var providerId = removeModel.ProviderId;
try
{
DbContext.RemoveDish(dishId, providerId);
return errors;
}
catch (Exception ex)
{
errors.Messages.Add(ex.Message);
return errors;
}
}
public ErrorModel PlaceOrder(PlaceOrderModel orderPlaceModel)
{
var errors = new ErrorModel();
if (orderPlaceModel == null)
{
errors.Messages.Add("Invalid data.");
return errors;
}
var orderItems = orderPlaceModel.OrderItems;
var userId = orderPlaceModel.UserId;
if (orderItems == null || orderItems.Count == 0)
{
errors.Messages.Add("No items found to order");
return errors;
}
var dishPrices = DbContext.GetDishes().Where(d => orderItems.Any(item => item.DishId == d.DishId && item.Quantity > 0)).ToDictionary(d => d.DishId, d => d.Price);
var newOrder = new OrderEntity { OrderDate = DateTime.Now, UserId = userId, SubTotal = orderItems.Where(item => item.Quantity > 0).Sum(item => item.Quantity * dishPrices[item.DishId]) };
try
{
DbContext.SaveOrder(newOrder, orderItems.Select(item => item.ToEntity()).ToList());
return errors;
}
catch(Exception ex)
{
errors.Messages.Add(ex.Message);
return errors;
}
}
