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NguyenGiap

from kivy.app import App from kivy.uix.boxlayout import BoxLayout from kivy.uix.label import Label from kivy.uix.button import Button from kivy.uix.textinput import TextInput from kivy.uix.image import Image from kivy.uix.screenmanager import ScreenManager, Screen

class Product: def init(self, name, price, image): self.name = name self.price = price self.image = image

class Cart: def init(self): self.items = []

def add_item(self, product):
    self.items.append(product)

def remove_item(self, product):
    self.items.remove(product)

def get_cart_details(self):
    cart_details = []
    for item in self.items:
        cart_details.append((item.name, item.price))
    return cart_details

def calculate_total(self):
    total = 0
    for item in self.items:
        total += item.price
    return total

def clear_cart(self):
    self.items = []

class LoginScreen(BoxLayout): def init(self, on_login, on_register, **kwargs): super().init(**kwargs) self.orientation = "vertical" self.spacing = 20 self.padding = 40

    self.add_widget(Label(text="Đăng nhập", font_size=24))

    self.username_input = TextInput(hint_text="Tên đăng nhập")
    self.add_widget(self.username_input)

    self.password_input = TextInput(hint_text="Mật khẩu", password=True)
    self.add_widget(self.password_input)

    self.login_button = Button(text="Đăng nhập", size_hint=(None, None), size=(200, 40))
    self.login_button.bind(on_press=lambda instance: on_login(self.username_input.text))
    self.add_widget(self.login_button)

    self.signup_button = Button(text="Đăng ký", size_hint=(None, None), size=(200, 40))
    self.signup_button.bind(on_press=lambda instance: on_register(self.username_input.text))
    self.add_widget(self.signup_button)

class CanteenScreen(BoxLayout): def init(self, on_add_to_cart, on_remove_from_cart, on_checkout, **kwargs): super().init(**kwargs) self.orientation = "vertical" self.spacing = 20 self.padding = 40

    self.products = [
        Product("Bim Bim ", 10000, "bimbim.jpg"),
        Product("Mỳ Ly", 20000, "myly.jpg"),
        Product("Nước ngọt", 30000, "nuocngot.jpg"),
        Product("Sữa Fami", 6000, "suafami.jpg"),
        Product("Thạch", 1500, "thach.jpg"),
        Product("Bánh mì ngọt", 8000, "banhmyngot.jpg"),
    ]

    self.add_widget(Label(text="Danh sách sản phẩm:", font_size=24))
    for product in self.products:
        product_layout = BoxLayout(orientation="horizontal", spacing=10)
        product_layout.add_widget(Image(source=product.image, size_hint=(0.2, 1)))
        product_layout.add_widget(Label(text=product.name, font_size=18))
        product_layout.add_widget(Label(text=str(product.price) + " VNĐ", font_size=18))
        add_to_cart_button = Button(text="Thêm vào giỏ hàng", size_hint=(None, None), size=(200, 40))
        add_to_cart_button.bind(on_press=lambda instance, name=product.name: on_add_to_cart(name))
        product_layout.add_widget(add_to_cart_button)
        self.add_widget(product_layout)

    self.checkout_button = Button(text="Thanh toán", size_hint=(None, None), size=(200, 40))
    self.checkout_button.bind(on_press=lambda instance: on_checkout())
    self.add_widget(self.checkout_button)

class CheckoutScreen(BoxLayout): def init(self, on_payment_complete, **kwargs): super().init(**kwargs) self.orientation = "vertical" self.spacing = 20 self.padding = 40

    self.cart_label = Label(text="Giỏ hàng:", font_size=24)
    self.add_widget(self.cart_label)

    self.cart_items_label = Label(font_size=18)
    self.add_widget(self.cart_items_label)

    self.total_label = Label(text="Tổng tiền:", font_size=18)
    self.add_widget(self.total_label)

    self.name_input = TextInput(hint_text="Tên khách hàng", size_hint=(None, None), size=(300, 40))
    self.add_widget(self.name_input)

    self.address_input = TextInput(hint_text="Địa chỉ", size_hint=(None, None), size=(300, 40))
    self.add_widget(self.address_input)

    self.phone_input = TextInput(hint_text="Số điện thoại", size_hint=(None, None), size=(300, 40))
    self.add_widget(self.phone_input)

    self.payment_button = Button(text="Thanh toán", size_hint=(None, None), size=(200, 40))
    self.payment_button.bind(on_press=self.payment)
    self.add_widget(self.payment_button)

    self.on_payment_complete = on_payment_complete

def update_cart_details(self, cart_details, total):
    self.cart_label.text = "Giỏ hàng:"
    self.cart_items_label.text = ""
    for item in cart_details:
        self.cart_items_label.text += "- " + item[0] + " - " + str(item[1]) + "\n"
    self.total_label.text = "Tổng tiền: " + str(total)

def payment(self, instance):
    customer_info = {
        "name": self.name_input.text,
        "address": self.address_input.text,
        "phone": self.phone_input.text
    }
    self.on_payment_complete(customer_info)

class Order: def init(self, customer, cart): self.customer = customer self.cart = cart

def send_order(self):
    # Gửi thông tin đơn hàng đến admin
    print("Thông tin đơn hàng:")
    print("Khách hàng:", self.customer.name)
    print("Địa chỉ:", self.customer.address)
    print("Số điện thoại:", self.customer.phone)
    print("Sản phẩm đã đặt mua:")
    for item in self.cart.items:
        print(item.name, "-", item.price)
    print("Tổng tiền:", self.cart.calculate_total())

class Customer: def init(self, name, address, phone): self.name = name self.address = address self.phone = phone class CanteenApp(App): def build(self): self.icon = ("icon.png") self.cart = Cart() self.sm = ScreenManager()

    self.login_screen = LoginScreen(on_login=self.login, on_register=self.register)
    screen = Screen(name="login")
    screen.add_widget(self.login_screen)
    self.sm.add_widget(screen)

    self.canteen_screen = CanteenScreen(
        on_add_to_cart=self.add_to_cart,
        on_remove_from_cart=self.remove_from_cart,
        on_checkout=self.checkout
    )
    screen = Screen(name="canteen")
    screen.add_widget(self.canteen_screen)
    self.sm.add_widget(screen)

    self.checkout_screen = CheckoutScreen(on_payment_complete=self.payment_complete)
    screen = Screen(name="checkout")
    screen.add_widget(self.checkout_screen)
    self.sm.add_widget(screen)

    return self.sm

def login(self, username):
    # Kiểm tra thông tin đăng nhập của admin
    if username == "admin":
        self.sm.current = "canteen"

def register(self, username):
    # Đăng ký tài khoản mới
    # (chức năng này có thể được thêm vào trong phiên bản cải tiến)
    pass

def add_to_cart(self, product_name):
    # Tìm sản phẩm trong danh sách sản phẩm và thêm vào giỏ hàng
    for product in self.canteen_screen.products:
        if product.name == product_name:
            self.cart.add_item(product)
            break

def remove_from_cart(self, product_name):
    # Tìm sản phẩm trong giỏ hàng và xóa khỏi giỏ hàng
    for product in self.cart.items:
        if product.name == product_name:
            self.cart.remove_item(product)
            break

def checkout(self):
    self.sm.current = "checkout"
    self.checkout_screen.update_cart_details(self.cart.get_cart_details(), self.cart.calculate_total())

def payment_complete(self, customer_info):
    # Tạo đối tượng khách hàng từ thông tin được nhập vào
    customer = Customer(customer_info["name"], customer_info["address"], customer_info["phone"])
    order = Order(customer, self.cart)
    order.send_order()
    self.cart.clear_cart()
    self.sm.current = "canteen"

if name == 'main': CanteenApp().run()

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