Untitled

# Imports
from time import sleep

# Generating core data

    # Item list
with open('shopping_item_list.txt') as item_name_data:
    item_list = item_name_data.readlines()

for i in range(len(item_list)):
    if '\n' in item_list[i]:
        item_list[i] = item_list[i].replace('\n', '')
    
    # Item prices
with open('item_prices.txt') as item_price_data:
    item_price = item_price_data.readlines()

for i in range(len(item_price)):
    if '\n' in item_price[i]:
        item_price[i] = item_price[i].replace('\n', '')

    # Item info (UNDER CONSTRUCTION)
item_info = []
temp_list = []
with open('item_info.txt') as item_info_data:
    for a in range(3):
        for b in range(5):
            temp_list.append(item_info_data.readline())
        item_info.append(temp_list)
        temp_list.clear()


    # Cart
shopping_cart = {}

    # Billing info
billing_info = {}

# Built-in functions
def help():
    print(
'''
help(): show this help box.
exit(): exit the program. WARMING: All items currently in cart will be lost, so please be careful.
list(): list all available items.
info(*item ID*): list all info of an item.
search('keyword'): search for items by keywords (case-sensitive, keyword must be put in quotation marks or apostrophes).
search_id(*item ID*): search for items by item ID.
billinginfo(): list your payment info, or enter your payment info if none found.
cart(): view your cart.
add(*item ID*): add an item to your cart.
remove(*item ID*): remove an item from your cart.
checkout(): proceed to checkout.
''')
def checkout_confirmation():
    print()
    print("Your order and credentials are listed below:")
    print()
    cart()
    print()
    billinginfo()
    confirmation = input("Proceed to checkout? (Y/N)")
    if confirmation == 'Y' or confirmation == 'y':
        print("Your order has been placed, thank you for choosing us!")
        shopping_cart.clear()
    elif confirmation == 'N' or confirmation == 'n':
        print("Checkout cancelled.")
    else:
        print("Unknown command. Please try again below.")
        checkout_confirmation()

def list():
    for j in range(len(item_list)):
        print(f"{j}: {item_list[j]} - {item_price[j]}$")



def search(name):
    products_found = 0
    try:
        for k in range(len(item_list)):
            if name in item_list[k]:
                print(f"{k}: {item_list[k]} - {item_price[k]}$")
                products_found += 1
        print(f"Found {products_found} items.")
    except:
        print("ERROR: Expression is not a string.")

def search_id(ID):
    try:
        print(f"{ID}: {item_list[ID]} - {item_price[ID]}$")
    except:
        print("ERROR: No such item found or bad ID.")

def billinginfo():
    billinginfo_placeholders = ['Name (as shown on credit card)', 'Card Type(Visa/Mastercard)', 'Credit Card Number', 'CVV', 'Expiry Date', 'Billing Address']
    if len(billing_info) == 0:
        for l in range(len(billinginfo_placeholders)):
            billing_info[billinginfo_placeholders[l]] = input(f"{billinginfo_placeholders[l]}: ")
    else:
        for key, value in billing_info.items():
            print(f"{key}: {value}")

def cart():
    total_price = 0
    if len(shopping_cart) == 0:
        print("Cart is empty.")
    else:
        for item in shopping_cart:
            print(f"{item}: {shopping_cart[item]} - {item_price[item]}$")
            total_price += int(item_price[item])
        print(f"Total: {total_price}$")
        
def add(ID):
    try:
        shopping_cart.update({ID: item_list[ID]})
        print(f"Successfully added {ID} - {item_list[ID]} to cart.")
    except:
        print("ERROR: No such item found.")

def remove(ID):
    try:
        shopping_cart.pop(ID)
        print(f"Successfully removed {ID} - {item_list[ID]} from cart.")
    except:
        print("ERROR: No such item in cart.")

def checkout():
    if len(shopping_cart) == 0:
        print("Cart is empty, cannot proceed to checkout.")
    else: 
        if len(billing_info) == 0:
            print("It seems like you currently don't have payment info, please type in your credentials as prompted below.")
            billinginfo()
            checkout_confirmation()
        else:
            checkout_confirmation()

# Main program

    # Welcome screen
print(
'''
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
|                                                                             |
| ___________.__               ________                                   /\  |
| \__    ___/|  |__   ____    /  _____/_____    _____   ___________  _____)/  |
|   |    |   |  |  \_/ __ \  /   \  ___\__  \  /     \_/ __ \_  __ \/  ___/   |
|   |    |   |   Y  \  ___/  \    \_\  \/ __ \|  Y Y  \  ___/|  | \/\___ \    |
|   |____|   |___|  /\___  >  \______  (____  /__|_|  /\___  >__|  /____  >   |
|                 \/     \/          \/     \/      \/     \/           \/    |                       
|                _________                                                    |
|                \_   ___ \  ___________  ____   ___________                  |
|                /    \  \/ /  _ \_  __ \/    \_/ __ \_  __ \                 |
|                \     \___(  <_> )  | \/   |  \  ___/|  | \/                 |
|                 \______  /\____/|__|  |___|  /\___  >__|                    |
|                        \/                  \/     \/                        |
| _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ |
     
Welcome to The Gamers' Corner, an online shop dedicated to gaming hardware and devices.
Start typing functions to shop. To get a list of available functions, type "help()".
We only accept Credit Card.
'''
)
    # Taking user inputs and executing the commands
while True:
    user_input = input()
    if user_input != 'exit()':
        try:
            eval(user_input)
        except:
            print("ERROR: Unexpected command or expression.")
        print()
    else: 
        print('Thank you for visiting The Gamers Corner! Have a good gaming day!')
        for timeout in range(3, 0, -1):
            print(f"Terminating current session in {timeout}...", end='\r')
            sleep(1)
        exit()