import tkinter as tk

from tkinter import messagebox

import json

# Функция для загрузки данных пользователей из JSON файла

def load_users():

try:

with open("users.json", "r") as file:

return json.load(file)

except FileNotFoundError:

return {}

# Функция для сохранения данных новых пользователей в JSON файл

def save_users(users):

with open("users.json", "w") as file:

json.dump(users, file)

# Присвоение данных пользователей в словарь

users = load_users()

# Функция для открытия окна регистрации

def open_registration_window():

registration_window = tk.Toplevel(window)

registration_window.title("Registration")

registration_window.geometry("300x200")

registration_window.configure(bg="#F0F0F0")

# Метки и поля ввода для формы регистрации

label_name = tk.Label(registration_window, text="FullName:", bg="#F0F0F0")

label_name.pack()

entry_name = tk.Entry(registration_window)

entry_name.pack()

label_age = tk.Label(registration_window, text="Age:", bg="#F0F0F0")

label_age.pack()

entry_age = tk.Entry(registration_window)

entry_age.pack()

label_username = tk.Label(registration_window, text="Username:", bg="#F0F0F0")

label_username.pack()

entry_username = tk.Entry(registration_window)

entry_username.pack()

label_password = tk.Label(registration_window, text="Password:", bg="#F0F0F0")

label_password.pack()

entry_password = tk.Entry(registration_window, show="*")

entry_password.pack()

# Функция для регистрации нового пользователя

def register():

name = entry_name.get()

age = entry_age.get()

username = entry_username.get()

password = entry_password.get()

if name and age and username and password:

if username in users:

messagebox.showerror("Error", "The username already exists!")

else:

users[username] = {

'name': name,

'age': age,

'password': password

}

messagebox.showinfo("Success", "Registration was successful!")

registration_window.destroy()

else:

messagebox.showerror("Error", "Please fill in all the fields!")

btn_register = tk.Button(registration_window, text="Register", command=register, width=15, bg="#007BFF", fg="white")

btn_register.pack(pady=10)

# Функция для открытия окна входа

def open_login_window():

login_window = tk.Toplevel(window)

login_window.title("Login")

login_window.geometry("300x150")

login_window.configure(bg="#F0F0F0")

label_username = tk.Label(login_window, text="Username:", bg="#F0F0F0")

label_username.pack()

entry_username = tk.Entry(login_window)

entry_username.pack()

label_password = tk.Label(login_window, text="Password:", bg="#F0F0F0")

label_password.pack()

entry_password = tk.Entry(login_window, show="*")

entry_password.pack()

# Функция для выполнения входа

def login():

username = entry_username.get()

password = entry_password.get()

if username and password:

if username in users and users[username]['password'] == password:

messagebox.showinfo("Success", "Successfully logged in!")

login_window.destroy()

else:

messagebox.showerror("Error", "Invalid username or password!")

else:

messagebox.showerror("Error", "Please enter both your username and password!")

btn_login = tk.Button(login_window, text="Login", command=login, width=15, bg="#DC3545", fg="white")

btn_login.pack(pady=10)

# Функция для выхода из программы

def exit_program():

save_users(users)

window.destroy()

# Создание главного окна Tkinter

window = tk.Tk()

window.title("Login & Registration System")

window.geometry("300x150")

window.configure(bg="#F0F0F0")

# Кнопки для открытия окон регистрации и входа

btn_registration = tk.Button(window, text="Registration", command=open_registration_window, width=15, bg="#28A745", fg="white")

btn_registration.pack(pady=10)

btn_login = tk.Button(window, text="Login", command=open_login_window, width=15, bg="#007BFF", fg="white")

btn_login.pack(pady=10)

# Кнопка для выхода из программы

btn_exit = tk.Button(window, text="Exit", command=exit_program, width=15, bg="#6C757D", fg="white")

btn_exit.pack(pady=10)

# Запуск цикла событий Tkinter

window.mainloop()