def start():
switch = True
while switch:
print("""
1.New Checkout
2.View Today's sale
3.Update Discount by category
4.Exit/Quit
""")
choice = input("Greetings! Select from the menu:")
if choice == "1":
in_checkout = True
while in_checkout:
print("""
1.Add item Name/Code
2.View stock availability
3.Finish and get bill
4.Exit
""")
checkout_choice = input("Please enter option:")
register_obj = Register()
if checkout_choice == '1':
print("""
Enter "D" when done
Enter "C" if item code needs to be referred
""")
purchased = []
interrupt = False
while not interrupt:
code = input("Enter item code:")
if code == 'd' or code == 'D':
interrupt = True
break
elif code == 'c' or code == 'C':
"""
Option for billing person to pause entering code and check item code by its name
in case code needs to be referred.
"""
item_name = input("Enter name to fetch item code:")
item_code = Inventory.get_item_code(item_name)
print('Item code:', item_code)
else:
purchased.append(code)
prices = Inventory.get_price_list(purchased)
register_obj.checkout(purchased, prices)
elif checkout_choice == '2':
stock = Inventory.get_stock()
views.view_stock_availability(stock)
elif checkout_choice == '3':
"""
To avail customer based discount
"""
print("""
1.Enter s to check if customer is senior citizen
2.Enter P to check for other privileges
3.Press Enter key to proceed with bill generation without privilege check
""")
privilege = input('Enter option: ')
if privilege == 's':
discount_percentage = 30
register_obj.update_discount(discount_percentage)
elif privilege == 'p':
mobile_num = input(
"Enter mobile number to check for special discounts"
)
if Customer(mobile_num).checkprevilige():
discount_percentage = 20
register_obj.update_discount(discount_percentage)
"""
Fetching bill statement and final bill amount
"""
bill = register_obj.get_bill()
views.view_bill(bill)
bill_amount = register_obj.get_bill_amount()
"""
Using polymorphism to make payment using multiple methods, two sample methods used as example
"""
payment_method = input('1.Cash 2.Card 3.Both')
payment_obj = []
if payment_method == '1':
payment_obj.append(Cash())
if payment_method == '2':
payment_obj.append(Card())
if payment_method == '3':
payment_obj.append(Cash())
payment_obj.append(Card())
for option in payment_obj:
option.receive_payment(bill_amount)
"""
Updating total sales and stock quantity once payment succeeds
"""
Inventory.update_stock(purchased)
Store.update_total(bill_amount)
in_checkout = False
elif checkout_choice == '4':
in_checkout = False
elif choice == "2":
views.view_total_sales(Store.get_total())
elif choice == "3":
"""
Apply discount to items by category or code (Inventory level discount)
"""
category = input(
"Enter item code or category(to update all items of that category) to apply discount"
)
Inventory.update_item_prices(category)
elif choice == "4":
switch = False
print("\n Goodbye")
elif choice != "":
print("\n Not Valid Choice Try again")
