onlinebanking1

import hashlib
import json
import random


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 cardValidare(number):
    lenght = len(number)
    if lenght > 16 or lenght < 16:
        return False
    digits = [int(x) for x in str(number)]

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


    prod_check = digits_sum * 9
    if prod_check % 10 == digits[lenght - 1]:
        return True
    return False

def furnizor(nume):
    while 1:
        print(f"\nAti ales furnizorul {nume}")
        print("Introduceti urmatoarele date")
        cod_client = int(input("Introduceti codul de client:"))
        numar_loc_consum = int(input("Introduceti numarul locului de consum: "))
        print("Total de plata:", random.randint(30, 150))
        card = input("Introduceti numarul cardului")
        if not cardValidare(str(card)):
            print("Numarul cardului este incorect!\n")
        data = input("Introduceti data de expirare: ex 10/23")
        ccv = 0
        while ccv < 100 or ccv > 1000:
            ccv = int(input("Introduceti ccv-ul de pe spatele cardului:"))
        print("Plata a fost procesata cu succes!")
        return True


if __name__ == '__main__':
    aplicatie = Utilizator()
    while 1:
        print("\n\n********** Online Banking **********")
        print("1.Inregistrare")
        print("2.Conectare")
        print("3.Exit")
        try:
            ch = int(input("Alegerea dumneavoastra:"))
        except:
            print("Introduceti un numar!")
            continue
        if ch == 1:
            aplicatie.inregistrare()
        elif ch == 2:
            conectare = aplicatie.conectare()
            if conectare:
                break
        elif ch == 3:
            break
        else:
            print("Alegere gresita!")
    nr_facturi = 0
    while conectare:
        print("\n\n********** Alege furnizorii **********")
        print((f"******** Utilizator {aplicatie.email_utilizator} ********"))
        print("1.Enel")
        print("2.Electrica")
        print("3.Exit")
        try:
            ch = int(input("Alegerea dumneavoastra:"))
        except:
            print("Introduceti un numar!")
            continue

        if ch == 1:
            plata = furnizor("Enel")
            if plata:
                nr_facturi += 1
        elif ch == 2:
            plata = furnizor("Electrica")
            if plata:
                nr_facturi += 1
        elif ch == 3:
            break
        else:
            print("Alegere gresita!")
    if nr_facturi:
        print(f"Ati  platit {nr_facturi} factura/i!")