cart.py

import csv
import sys
import os
from pyfiglet import Figlet
from time import sleep

cart = []
figlet = Figlet()

with open('temp.txt', 'r') as f:
    data = f.readlines()
    is_login = data[0]
    name = data[1].upper()
    f.close()


def clear_screen():
    os.system('cls' if os.name == 'nt' else 'clear')
    print("""
                              ___   ___     ___     ___   ___   ___   __   __ 
                             / __| | _ \\   / _ \\   / __| | __| | _ \\  \\ \\ / / 
  --------------------------| (_ | |   /  | (_) | | (__  | _|  |   /   \\ V /  ---------------------------------
                             \\___| |_|_\\   \\___/   \\___| |___| |_|_\\    |_|   
    """)
    print(f"CURRENT USER :- {name}".center(110))
    print()
    print()

def search(item):
    print("\033[0m",end="")
    clear_screen()
    item_present = False
    x = item.title()
    print("\t   ","-"*(len(x)+14))
    print("\t   |\033[95m",x," "*7," 🔍 \033[0m|")
    print("\t   ","-"*(len(x)+14),end="\n\n")
    with open("data1.csv", "r") as item_retriever:
        reader = csv.reader(item_retriever)
        while True:
            try:
                row = next(reader)
            except StopIteration:
                break
            if item in row:
                item_present = True
    if item_present:
        print(
            "\033[0mItem |                    |           |      \nno.  |  Item              | Item Desc | Price "
        )
        print("-----|--------------------|-----------|------")
        with open("data1.csv") as item_retriever:
            reader = csv.reader(item_retriever)
            while True:
                try:
                    row = next(reader)
                except StopIteration:
                    break
                if item in row:
                        print(
                            f"\033[36m{row[0]:5}\033[0m|\033[33m{row[3]:20}\033[0m|{row[4]:11}|\033[32m{row[5]:6}\033[0m"
                        )
            print("--------------------------------------------", end="\n\n")
    else:
        print("\033[91mNo matches found...\033[0m\n")
    if selection():
        return True


def retriever(item):
    clear_screen()
    print()
    x = item.title()
    figlet.setFont(font="smslant")
    for i in figlet.renderText(x).splitlines():
        print("  \033[95m",i,"\033[0m")
    print(
        "\033[0mItem |                    |           |      \nno.  |  Item              | Item Desc | Price "
    )
    print("-----|--------------------|-----------|------")
    with open("data1.csv", "r") as item_retriever:
        reader = csv.reader(item_retriever)
        row = next(reader)
        while True:
            try:
                row = next(reader)
            except StopIteration:
                break
            if item == row[1]:
                print(
                    f"\033[36m{row[0]:5}\033[0m|\033[33m{row[3]:20}\033[0m|{row[4]:11}|\033[32m{row[5]:6}\033[0m"
                )
        print("--------------------------------------------", end="\n\n")


def check_if_in_cart(number):
    if len(cart) == 0:
        return True
    else:
        for row in cart:
            if number == row[0]:
                print("This item already added to cart :  ", end="")
                print(row[3], "(", row[4], ")x", row[6])
                ans = input("Would you like to a.'Continue' or b.'Change Quantity' :  ").lower().strip()
                if ans == 'a' or ans == 'continue':
                    return False
                elif ans == 'b' or ans == 'change quantity':
                    qty = int(input("Enter Quantity : "))
                    row[6] = str(qty)
                    print("\t\t",row[3], "(" + str(row[4]) + ") x", row[6], "has been updated in cart")
                    print()
                    return False
                else:
                    while ans not in ['a', 'b', 'continue', 'change quantity']:
                        print("Wrong Input")
                        ans = input("Would you like to a.'Continue' or b.'Change Quantity' ").lower().strip()
                    if ans == 'a' or ans == 'continue':
                        return False
                    else:
                        qty = int(input("Enter Quantity : "))
                        row[6] = str(qty)
                        print("\t\t",row[3], "(" + str(row[4]) + ") x", row[6], "has been updated in cart")
                        print()
                        return False
        return True


def add_():
    try:
        number = input("Enter Item Number  :").strip()
        quantity = input("Enter Quantity : ").strip()
    except ValueError:
        print("Invalid input item number and quantity must be separated")
        return add_()
    try:
        int(quantity)
    except ValueError:
        print("Quantity must be an integer")
        return add_()
    r = check_if_in_cart(number)
    if r:
        l = []
        with open('data1.csv', 'r') as item_retriever:
            reader = csv.reader(item_retriever)
            for row in reader:
                if number == row[0]:
                    l = row.copy()
            l.append(quantity)
            item_retriever.close()
        cart.append(l)
        clear_screen()
        print("\t\t",l[3], "(" + str(l[4]) + ") x", l[6], "has been added to cart\n")

    if selection():
        return True


def view_cart():
    if len(cart) == 0 :
        print("Your Cart is Empty...")
    else:
        clear_screen()
        print()
        figlet.setFont(font='rounded')
        for i in figlet.renderText("Cart").splitlines():
            print("\t\t\033[96m",i,"\033[0m")
        reader = iter(cart)
        s = ["Item No.","Item Name","Item Desc","Quant","Rate"]
        print("-----------------------------------------------------------")
        print(f"|{s[0]:8}| {s[1]:20}| {s[2]:10} | {s[3]:4}| {s[4]:4} |")
        while True:
            try:
                row = next(reader)
            except StopIteration:
                    break
            print("|--------|---------------------|------------|------|------|")
            print(f"|\033[93m{row[0]:8}\033[0m| \033[91m{row[3]:20}\033[0m| {row[4]:10} | \033[92m{row[6]:4} \033[0m|₹ \033[95m{row[5]:4}\033[0m|")
        print("-----------------------------------------------------------")
        answer = input("Would you like to make changes in cart (yes/no) : ").lower().strip()
        if answer == 'yes':
            change_cart()
        elif answer == 'no':
            pass
        else:
            while answer not in ['yes', 'no']:
                answer = input("Would you like to make changes in cart (yes/no) : ").lower().strip()
            if answer == 'yes':
                change_cart()
            else:
                pass

    if selection():
        return True

def change_cart():
    print("a.Delete item in cart\nb.Update quantity of an item")
    key = input("Enter your choice : ").lower().strip()
    name = ""
    item_present = False
    if key == 'a':
        item = input("Enter Item Number : ")
        for row in cart:
            if row[0]==item:
                item_present = True
                name = row[3]
                cart.remove(row)
                print("\t\t",name,"has been removed from cart\n")
        if item_present == False:
            print("Input Item is not present in cart")
    elif key =='b':
        while True:
            try:
                item = input("Enter Item Number  : ").strip()
                quantity = input("Enter Quantity : ").strip()
            except ValueError:
                print("Invalid input item number and quantity must be separated")
                continue
            try:
                int(quantity)
            except ValueError:
                print("Quantity must be an integer")
                continue
            break
        for row in cart:
            if row[0] == item:
                row[6]=quantity
                item_present = True
                print("\t\t",row[3], "(" + str(row[4]) + ") x", row[6], "has been updated in cart\n")
        if item_present == False:
            print("Input Item is not present in cart")
            take = input("Would you like to add it? (yes/no) : ")
            if take == 'yes':
                add_()
            else:
                pass
    else:
        while key not in ['a','b']:
            print("Wrong Input")
            key = input("Enter your choice : ").lower().strip()
        if key == 'a':
            item = input("Enter Item Number : ")
            for row in cart:
                if item == row[0]:
                    name = row[3]
                    cart.remove(row)
            print("\t\t",name, "has been removed from cart\n")
        else:
            item, quantity = input("Enter Item Number and Quantity : ")
            for row in cart:
                if row[0] == item:
                    row[6] = quantity
                    print("\t\t",row[3], "(" + str(row[4]) + ") x", row[6], "has been updated in cart\n")


def print_section(choice):
    if choice not in ['A','B','C','D','E','F','G']:
        b = wrong_choice(choice)
        print_section(b)
    elif choice == 'A':
        clear_screen()
        if search(input("Search : \033[95m").lower()):
            return True
    elif choice == 'B':
        retriever("kirana")
    elif choice == 'C':
        retriever("instant and frozen foods")
    elif choice == 'D':
        retriever('juices and cold drinks')
    elif choice == 'E':
        retriever('dairy bread and eggs')
    elif choice == 'F':
        retriever('snacks')
    else:
        retriever('dry fruits oils and masalas')
    if selection():
        return True


def wrong_choice(choice):

    while choice not in['A','B','C','D','E','F','G'] :
        print("Wrong Input")
        choice = (input("Enter your choice: \033[95m")).upper()
        print("\033[0m",end="")
    return choice


def command(select__):
    if select__ == 'add' or select__ == '1':
        if add_():
            return True
    elif select__ == 'view cart' or select__ == '2':
        if view_cart():
            return True
    elif select__ == 'menu' or select__=='4':
        if menu():
            return True
    elif select__ == 'place order' or select__ == '5':
        if len(cart) == 0:
            print("Your cart is Empty..")
            option = input("Would You like to a.Continue shopping or b.Exit : ").lower().strip()
            if option == 'a' or option == 'continue':
                selection()
            elif option == 'b' or option == 'exit':
                sys.exit()
            else:
                while option not in ['a','b','continue','exit']:
                    option = input("Would You like to a.Continue shopping or b.Exit : ").lower().strip()
                if option == 'a' or option == 'continue':
                    selection()
                else:
                    sys.exit()
        else:
            with open('cart.csv','a',newline="") as putter:
                writer = csv.writer(putter)
                for row in cart:
                    writer.writerow(row)
            clear_screen()
            print("Placing your order....")
            sleep(2)
            return True

        return True
    elif select__ == 'search' or select__ == '3':
        if search(input("Search : \033[95m").lower()):
            return True
    else:
        print("incorrect command")
        sleep(1)
        clear_screen()
        if selection():
            return True


def menu():
    clear_screen()
    figlet = Figlet()
    figlet.setFont(font="standard")
    for i in figlet.renderText("Menu").splitlines():
        print("\t\t\t\t\033[93m",i,"\033[0m")
    print("\t\t\t     -------------------------------")
    print("\t\t\33[95m  A. \033[91mSearch\033[0m",end=" ")
    print("|                           🔍  |")
    print("\t\t\t     -------------------------------")
    print("\t     \033[95mB. \033[96mKirana\033[0m")
    print("\n\t     \033[95mC. \033[96mInstant and Frozen Foods\033[0m")
    print("\n\t     \033[95mD. \033[96mJuices and Cold drinks\033[0m")
    print("\n\t     \033[95mE. \033[96mDairy , Bread and Eggs\033[0m")
    print("\n\t     \033[95mF. \033[96mSnacks\033[0m")
    print("\n\t     \033[95mG. \033[96mDry Fruits , Oils and Masalas\033[0m")
    choice = (input("\nEnter your choice: \033[95m")).upper()
    print("\033[0m")
    if print_section(choice):
        return True


def selection():
    print(" "+"_"*67)
    print("| 1.(add) ➕| 2.(view cart) 🛒| 3.(search) 🔍| 4.(menu) ☰| 5.(place order) 📦|")
    print(" "+"_" * 67)
    print("""
    TO SELECT OPTION PLEASE ENTER TEXT INSIDE () AND PRESS ENTER
    """)
    sleep(0.3)
    select_ = input("Enter Command : ").lower().strip()

    if command(select_):
        return True