import tkinter as tk

from my_package.App_window import AppWindow


def is_valid_isbn(entry):
    clean_isbn = entry.replace("-", "").replace(" ", "").upper()

    if len(clean_isbn) != 10:
        return False

    total = 0
    try:
        for i in range(10):
            char = clean_isbn[i]
            if i == 9 and char == 'X':
                value = 10
            elif char.isdigit():
                value = int(char)
            else:
                return False
            total += value * (10 - i)

        return total % 11 == 0
    except Exception:
        return False


def is_valid_iban(entry):
    clean_iban = entry.replace(" ", "").upper()

    rearranged = clean_iban[4:] + clean_iban[:4]

    numeric_iban = ""
    for char in rearranged:
        if char.isdigit():
            numeric_iban += char
        else:
            numeric_iban += str(ord(char) - 55)

    return int(numeric_iban) % 97 == 1


class Checker(AppWindow):
    def __init__(self):
        super().__init__(300,300)
        self.button_1 = tk.Button(self.root, text="check", command= self.check_isbn)
        self.button_2 = tk.Button(self.root,text="check", command= self.check_iban)
        self.isbn_label = tk.Label(self.root, text="")
        self.iban_label = tk.Label(self.root, text="")
        self.entry_1 = tk.Entry(self.root, width=20)
        self.entry_2 = tk.Entry(self.root, width=20)


    def init_widgets(self):
        tk.Label(self.root, text="ISBN: ").grid(row=0, column=0)
        self.entry_1.grid(row=0, column=1)
        self.button_1.grid(row=1, column=0)
        self.isbn_label.grid(row=1, column=1)

        tk.Label(self.root, text="IBAN: ").grid(row=2, column=0)
        self.entry_2.grid(row=2, column=1)
        self.button_2.grid(row=3, column=0)
        self.iban_label.grid(row=3, column=1)

    def check_isbn(self):
        entry = self.entry_1.get()
        self.entry_1.delete(0, tk.END)
        if is_valid_isbn(entry):
            self.isbn_label.configure(text="Valid ISBN")
        else:
            self.isbn_label.configure(text="Invalid ISBN")

    def check_iban(self):
        entry = self.entry_2.get()
        self.entry_2.delete(0, tk.END)
        if is_valid_iban(entry):
            self.iban_label.configure(text="Valid IBAN")
        else:
            self.iban_label.configure(text="Invalid IBAN")

def console_checker():
    print("Welcome to IBAN / ISBN Checker")
    while True:
        usr_input = input("Please enter your Number: ")
        print("1. Check ISBN")
        print("2. Check IBAN")
        print("3. Exit")
        usr_choice = input("1 / 2 / 3 ?: ")

        if usr_choice == "1":
            if is_valid_isbn(usr_input):
                print("Valid ISBN")
            else:
                print("Invalid ISBN")
        if usr_choice == "2":
            if is_valid_iban(usr_input):
                print("Valid IBAN")
            else:
                print("Invalid IBAN")
        if usr_choice == "3":
            break

def main():
    app = Checker()
    app.run()

console_checker()