//Placing Orders and Documenting Orders///////////////////////////////////////////////////////////////
        //
        // Not covered here: billing, we'll assume everyone pays cash or in packs of gum.
        //

        //Location will probably need to retain this in business_logic
        static void orderScreen(caproj0Context context, ILocation store, ICustomer cust)
        {
            //prompt for an order
            string choice = "";

            Console.Clear();

            Console.Write("Enter another product or");

            //create the order
            //IOrder batOrder = new Order(cust); //never EVER use the default constructor...
            IOrder theOrder = new Order(cust); //never EVER use the default constructor...

            while (choice != "X" || choice != "x")
            {
                //refesh
                choice = "";

                Console.WriteLine(" enter X to exit.");

                Console.WriteLine(store.BuildMenuChoices());

                Console.WriteLine("Item Number: \t");

                choice = Console.ReadLine();

                if (choice == "X" || choice == "x")
                {
                    Console.WriteLine("Thank You! You have Ordered the following:\n");

                    //add to the store's list of reciepts (list of orders)
                    // valid order?
                    if (theOrder != null && theOrder.ItemsOrdered.Count != 0)
                    {
                        /////////update store inventory////////////
                        // as order is confirmed, update customer's inventory.

                        //iterate over the order
                        for (int p = 0; p < theOrder.ItemsOrdered.Count; p++)
                        {
                            //adjust store inventory based on the order.
                            // Inventory stored in Product, so this is actually simple.
                            int      quantity    = theOrder.ItemsOrdered[p].Item2;
                            IProduct thisProduct = theOrder.ItemsOrdered[p].Item1;

                            //adjust the quanity, can go down to zero.
                            thisProduct.AdjustQty(-1 * quantity);

                            ///////////// output the order summary///////////////
                            //

                            Console.WriteLine($" Item: {thisProduct.ProductDesc} Qty: {quantity}\n");

                            //
                            /////////////////////////////////////////////////////
                        }

                        //
                        ///////////////////////////////////////

                        Console.WriteLine("Thank You For Your Business");
                        store.Reciepts.Add(theOrder);  //to store reciepts

                        cust.CustOrders.Add(theOrder); //to customer history.

                        DateTime now = DateTime.Now;

                        //write to database
                        addOrderToDB(context, cust.PhoneNum, store.Phone, now);

                        var dbOrdNo = GetCustoOrdNoFromDB(context, cust.PhoneNum, store.Phone, now);

                        for (int i = 0; i < theOrder.ItemsOrdered.Count; i++)
                        {
                            var product = context.Product.FirstOrDefault(p => p.Pname == theOrder.ItemsOrdered[i].Item1.ProductDesc);

                            addLineItemToDB(context, dbOrdNo, product.ProductId, theOrder.ItemsOrdered[i].Item2);
                        }

                        UpdateLocInvOnDB(context, store);

                        Console.WriteLine("Press Enter To Continue");
                        string pause = Console.ReadLine();
                    }
                    else
                    {
                        theOrder = null;
                        Console.WriteLine("Order canceled...");
                    }

                    return;
                }

                Console.Write("How many would you like to order today?\t");

                string qty = Console.ReadLine();


                //validate quantity ordered... not too many!
                if (Int32.Parse(qty) >= store.ProdIndex[Int32.Parse(choice)].QuantityOnHand)
                {
                    Console.WriteLine("Insufficient quantity on hand.\nTry to order something else!");
                    Thread.Sleep(1000);
                    qty = "0";
                }


                //create the order
                if (qty != "0")
                {
                    ////////////////////////THIS WORKS////////////////////////////////////
                    // For now, just add to the store's list of receipts....
                    // Check to see if it works ...

                    Console.WriteLine("Adding item to order...");

                    //add an order

                    //look up the product they want
                    //

                    IProduct thisProd = store.ProdIndex[Int32.Parse(choice)];

                    ///////////////////////

                    //add an item to that order.
                    //batOrder.AddItemToOrder(new Product("batarangs", "Steel Batarang", 5.0), Int32.Parse(qty) );
                    theOrder.AddItemToOrder(thisProd, Int32.Parse(qty));


                    //if place here, adds duplicates to the list of reciepts
                    //add to the store's list of reciepts (list of orders)
                    //store.Reciepts.Add(theOrder);

                    // TO ACCESS order line-item-tuple IN ORDER LIST DIRECTLY
                    // short name: string
                    // store.Reciepts[ store.Reciepts.Count - 1].ItemsOrdered[0].Item1.ProductDesc
                    // quantity: int
                    // store.Reciepts[ store.Reciepts.Count - 1].ItemsOrdered[0].Item2

                    //gets the items ordered
                    Tuple <IProduct, int> lineItem = theOrder.ItemsOrdered[theOrder.ItemsOrdered.Count - 1];

                    Console.WriteLine($"Confirming:  Item: { lineItem.Item1.ProductDesc } Quantity: { lineItem.Item2 } ");
                    Console.WriteLine("Press Enter to Continue");
                    string pause = Console.ReadLine();
                    //
                    ////////////////////////////////////////////////////////////////////////
                }

                Console.Clear();

                Console.Write("Enter another product or");
            }
        }