onlinebanking

import hashlib
import json


class Utilizator:

    def __init__(self):
        super().__init__()
        self.email_utilizator = None

    def inregistrare(self):
        email = input("Introduceti adresa de email: ")
        confirmare = False
        while not confirmare:
            parola = input("Introduceti parola: ")
            parola_confirmare = input("Confirmati parola: ")
            if parola != parola_confirmare:
                print("Cele doua parole nu coincid!")
            else:
                confirmare = True
        enc = parola.encode()
        hash1 = hashlib.md5(enc).hexdigest()

        client = email + parola
        client_enc = client.encode()
        client_hash = hashlib.md5(client_enc).hexdigest()
        json_object = {str(client_hash):[{"email": email, "password": hash1}]}

        inputfile = open('credentials.json')
        json_object_loaded = json.load(inputfile)
        if client_hash in json_object_loaded:
            print("Acest cont exista!")
            return

        dict_final = {**json_object_loaded, **json_object}
        with open("credentials.json", "w") as outfile:
            outfile.write(json.dumps(dict_final))
        outfile.close()
        print("Te-ai inregistrat cu succes!")

    def conectare(self):
        email = input("Introduceti adresa de email: ")
        parola = input("Introduceti parola: ")

        client = email + parola
        client_enc = client.encode()
        client_hash = hashlib.md5(client_enc).hexdigest()

        inputfile = open('credentials.json')
        json_object_loaded = json.load(inputfile)
        if client_hash in json_object_loaded:
            print("Te-ai conectat cu succes!")
            self.email_utilizator = email
            return True
        else:
            print("Datele sunt incorecte!")



def cardValidate(number) :
    lenght = len(number)
    digits = [int(x) for x in str(number)]
    print(digits)
    for el in range(1, lenght, 2):
        digits[el] *= 2
        if digits[el] >= 9:
            digits[el] = int(digits[el] % 10 + (digits[el] / 10) % 10)
    print(digits)
    digits_sum = 0
    for i in range(lenght - 1):
        digits_sum += digits[i]

    print(digits_sum)

    prod_check = digits_sum * 9
    if prod_check % 10 == digits[lenght - 1]:
        print("Cardul e valid")


if __name__ == '__main__':
    aplicatie = Utilizator()
    while 1:
        print("********** Online Banking **********")
        print("1.Inregistrare")
        print("2.Conectare")
        print("3.Exit")
        ch = int(input("Alegerea dumneavoastra: "))
        if ch == 1:
            aplicatie.inregistrare()
        elif ch == 2:
            conectare = aplicatie.conectare()
            if conectare:
                break
        elif ch == 3:
            break
        else:
            print("Wrong Choice!")

    while conectare:
        print("********** Alege furnizorii ********** Utilizator: ", aplicatie.email_utilizator)
        inputfile = open('furnizori.json')
        json_object_loaded = json.load(inputfile)
        print(json_object_loaded)
        for key, value in json_object_loaded.items():
            print(value)
        card = input("Introduceti numarul cardului")
        cardValidate(str(card))
        conectare = False