/// <summary>
/// input/output for the process of adding a new order with all
/// the validation taking place along the way and finally adding
/// a new order with the given information.
/// </summary>
public void AddNewOrder()
{
// declare new instance(s)
using (StoreApp_DbContext db = new StoreApp_DbContext())
{
OrderCreation createOrder = new OrderCreation();
CustomerQueries checkCustomer = new CustomerQueries();
Order newOrder = new Order();
Console.WriteLine("Please enter the customerID of your Customer placing an order.");
do
{
string input = Console.ReadLine();
if (input == "cancel")
{
return;
}
// check if input is an int
while (!createOrder.IsValidNum(input))
{
Console.WriteLine("Invalid customerID number, please enter another.");
input = Console.ReadLine();
if (input == "cancel")
{
return;
}
}
// check if there is a customer with the inputted ID
int id = createOrder.StringToInt(input);
if (checkCustomer.IsValidCustomerID(id))
{
newOrder.CustomerID = id;
}
else
{
Console.WriteLine("There is no Customer with this ID, please enter another.");
newOrder.CustomerID = 0;
}
} while (newOrder.CustomerID == 0); // repeat if there is no customer with the ID
// display all the available products
ProductQueries checkProducts = new ProductQueries();
var products = checkProducts.GetProducts();
Console.WriteLine("Here are all the available products:");
Console.WriteLine("ID\tStore\t\tName\t\tInventory\tPrice");
foreach (var p in products)
{
Console.WriteLine($"{p.ProductID}\t{p.Store.Location}\t{p.ProductName}" +
$"\t{p.Inventory}\t\t{p.Price}");
}
bool multipleProducts;
int productCount = 0;
do
{
Console.WriteLine("Please enter the ID of the product being ordered");
do
{
string input = Console.ReadLine();
if (input == "cancel")
{
return;
}
// check if input is an int
while (!createOrder.IsValidNum(input))
{
Console.WriteLine("Invalid product ID number, please enter another.");
input = Console.ReadLine();
if (input == "cancel")
{
return;
}
}
int id = createOrder.StringToInt(input);
// check if there is a product with the inputted ID
if (checkProducts.IsValidProductID(id))
{
newOrder.ProductID = id;
}
else
{
Console.WriteLine("There is no product with this ID or there is none left, please enter another.");
newOrder.ProductID = 0;
}
} while (newOrder.ProductID == 0); // repeat if no product with that ID
var product = checkProducts.GetProductName(newOrder.ProductID);
Console.WriteLine($"For buying, specify the number of {product.ProductName}");
do
{
string input = Console.ReadLine();
if (input == "cancel")
{
return;
}
// check if input is an int
while (!createOrder.IsValidNum(input))
{
Console.WriteLine("Invalid amount, please enter another.");
input = Console.ReadLine();
if (input == "cancel")
{
return;
}
}
int amount = createOrder.StringToInt(input);
// check if the inventory is high enough for given amount
if (amount == 0)
{
Console.WriteLine("Please specify an amount");
}
else if (createOrder.IsUnreasonableQuantity(amount))
{
// if the amount requested is unreasonable (>=10)
Console.WriteLine($"{amount} is an unreasonable amount of {product.ProductName}");
newOrder.Quantity = 0;
}
else if (checkProducts.IsValidProductQuantity(amount, newOrder.ProductID))
{
// if there is enough product and it is reasonable
newOrder.Quantity = amount;
}
else
{
Console.WriteLine($"There is not {amount} available at this store, please enter another amount.");
newOrder.Quantity = 0;
}
} while (newOrder.Quantity == 0); // repeat if not enough product or unreasonable
Console.WriteLine("Would you like to include another product in this order (yes or no)?");
string addProduct = Console.ReadLine();
if (addProduct == "cancel")
{
return;
}
// check if they are saying yes or no to extra product
while (addProduct != "yes" && addProduct != "no")
{
Console.WriteLine("Please pick put in one of the two");
addProduct = Console.ReadLine();
if (addProduct == "cancel")
{
return;
}
}
if (addProduct == "yes")
{
multipleProducts = true;
}
else
{
multipleProducts = false;
}
productCount++;
if (productCount == 1)
{
// keep same timestamp for multiple product order
newOrder.Timestamp = createOrder.GetTimeStamp();
}
db.Add <Order>(newOrder);
db.SaveChanges();
StoreQueries updateStore = new StoreQueries();
updateStore.UpdateInventory(newOrder);
newOrder.OrderID++;
} while (multipleProducts); // go back if they wanted another product
Console.WriteLine("Order successfully placed! Hit enter to go back to menu.");
Console.ReadLine();
}
}
