def createOrder():


    while True:
        customerID = input("Please enter your customer ID: ")
        with open('customers.txt') as f:
            if customerID in f.read():
                print("\nThe customer ID is valid")
                break
            else:
                print("\nThat Customer ID does not exist. Please try again")

    while True:
        orderID = input("\nPlease enter a unique ID for your order (5 numbers): ")
        if orderID.isdigit()==False:
            print("\nYou can only use numbers for your unique ID")
        elif len(orderID) != 5:
                print("\nYou must use exactly 5 digits")
        else:
            print("\nYour unique ID is OR" + orderID)
            break


    while True:
        item_name = input("\nPlease type the name of the item you wish to purchase: ")
        with open('products.txt') as f:
            if item_name in f.read():
                print("\nProduct Added")
                break
            elif item_name not in f.read():
                print("\nProduct does not exist. Please try again")


    while True:
        readStock = open('products.txt','r')
        location = readStock.readline()
        price = float(location[350:354].strip())
        quantity = int(input("\nHow much of this product would you like to purchase?:  "))
        if quantity >100:
            print("\nYou can only buy up to 100 items")
        elif quantity <1:
            print("\nYou must buy a minimum of 1 item!")
        finalPrice = float(price*quantity)
        if finalPrice >=50:
            finalPrice *=0.95
            finalPrice +=5.99
        else:
            finalPrice <=50
            finalPrice +=5.99
            readStock.close()
        break

    orderID = ("OR")+ orderID
    orderID=orderID.strip()
    orderID=orderID.lower()
    orderIDStore=orderID.ljust(60)
    customerID=customerID.strip()
    customerID=customerID.lower()
    customerIDStore=customerID.ljust(13)
    finalPrice=str(finalPrice)
    finalPrice=finalPrice.ljust(7)
    today = date.today()
    today = str(today)
    today = today.ljust(15)
    quantity = str(quantity)
    quantityStore = quantity.ljust(55)
    unpaid = str(0)
    order_file = open('orders.txt', 'a')
    stock_file = open('products.txt', 'r')
    for line in stock_file.readlines():
        if item_name in line:
            line = line.ljust(12)
            order_store = finalPrice + today + customerIDStore + quantityStore + orderIDStore +  unpaid + line + "\n"
            order_file.write(order_store)
            print("\nThank you! Your chosen item(s) have been added to your order! ")
            order_file.close()
            stock_file.close()
            mainMenu()