import tkinter
import tkinter as tk
import re

class SignupView(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.create_widgets()

    def create_widgets(self):
        # Create a frame to hold the entry fields and labels
        form_frame = tk.Frame(self)

        # Username Label and Entry
        self.username_label = tk.Label(form_frame, text="Username:")
        self.username_label.grid(row=0, column=0, pady=5)
        self.username_entry = tk.Entry(form_frame)
        self.username_entry.grid(row=0, column=1, pady=5)
        self.username_error_var = tk.StringVar()  # Variable to store error message
        self.username_error_label = tk.Label(form_frame, textvariable=self.username_error_var, fg="red")

        # Email Label and Entry
        self.email_label = tk.Label(form_frame, text="Email:")
        self.email_label.grid(row=1, column=0, pady=5)
        self.email_entry = tk.Entry(form_frame)
        self.email_entry.grid(row=1, column=1, pady=5)
        self.email_error_var = tk.StringVar()  # Variable to store error message
        self.email_error_label = tk.Label(form_frame, textvariable=self.email_error_var, fg="red")

        # Password Label and Entry
        self.password_label = tk.Label(form_frame, text="Password:")
        self.password_label.grid(row=2, column=0, pady=5)
        self.password_entry = tk.Entry(form_frame, show="*")  # Use show="*" to hide password characters
        self.password_entry.grid(row=2, column=1, pady=5)
        self.password_error_var = tk.StringVar()  # Variable to store error message
        self.password_error_label = tk.Label(form_frame, textvariable=self.password_error_var, fg="red")

        # Signup Button
        self.signup_button = tk.Button(form_frame, text="Signup", command=self.on_signup)
        self.signup_button.grid(row=3, column=1, pady=10)
        self.clear_errors()

        form_frame.pack()
    def on_signup(self):
        self.clear_errors()

        # Retrieve values from entry fields
        username = self.username_entry.get()
        email = self.email_entry.get()
        password = self.password_entry.get()

        # Validate username length
        if len(username) < 8:
            self.username_error_var.set("Username must be at least 8 characters.")
            self.username_error_label.grid(row=0, column=3, pady=5, sticky='w')

        # Validate email format using a simple regex
        email_pattern = re.compile(r"[^@]+@[^@]+\.[^@]+")
        if not email_pattern.match(email):
            self.email_error_var.set("Invalid email format.")
            self.email_error_label.grid(row=1, column=3, pady=5, sticky='w')

        # Validate password length and presence of numbers
        if len(password) < 8:
            self.password_error_var.set("Password must be at least 8 characters")
            self.password_error_label.grid(row=2, column=3, pady=5, sticky='w')

        # Print or handle the values as needed
        print(f"Username: {username}, Email: {email}, Password: {password}")

    def clear_errors(self):
        # Clear all error messages
        self.username_error_var.set("")
        self.username_error_label.grid_forget()
        self.email_error_var.set("")
        self.email_error_label.grid_forget()
        self.password_error_var.set("")
        self.password_error_label.grid_forget()