/// <summary>
        /// Enter a new order into db
        /// </summary>
        /// <param name="appOrder"></param>
        public void CreateOrder(Library.Order appOrder)
        {
            using var context = new P0Context(_dbContextOptions);
            //map library order to db
            var dbOrder = new Order()
            {
                Store    = context.Stores.First(s => s.Id == appOrder.TargetStore.Id),
                Customer = context.StoreCustomers.First(c => c.Id == appOrder.Orderer.Id),
                Time     = appOrder.Time
            };

            //map all items in the order to db
            foreach (Library.Product selection in appOrder.Selections)
            {
                //create a new item, Store = null unless item is part of an inventory
                var dbItem = new Item()
                {
                    Product  = context.Products.First(p => p.Name == selection.Name),
                    Quantity = selection.Quantity,
                    Store    = null,
                    //Store = context.Stores.First(s => s.Id == appOrder.TargetStore.Id),
                    Order = dbOrder
                };
                context.Add(dbItem);
            }
            context.Add(dbOrder);
            context.SaveChanges();
        }
        /// <summary>
        /// Enter a new customer into db, and app
        /// </summary>
        /// <param name="customerName"></param>
        public void CreateCustomer(string customerName, List <Library.Customer> customers)
        {
            //add to app
            Library.Customer newCustomer = new Library.Customer(customerName);
            customers.Add(newCustomer);

            //add to db
            using var context = new P0Context(_dbContextOptions);

            newCustomer.Id = context.StoreCustomers.OrderBy(x => x.Id).Last().Id + 1;
            var dbCustomer = new StoreCustomer()
            {
                Name = customerName
            };

            context.Add(dbCustomer);
            context.SaveChanges();
        }