class User:

    def info_save(self, save_username_1, save_password_1):
        u_input = UserInput()
        if (save_password_1 and save_username_1) != "":
            file_read = open("user_list.txt")
            delimiter = ","
            data = {}
            for line in file_read.readlines():
                a = line.strip().split(delimiter)
                if len(a) == 2:
                    data[a[0]] = a[1]
                    file_read.close()

            if save_username_1 in data:
                print("USERNAME is already in use", "\n")
                u_input.register()
            else:
                file_write = open("user_list.txt", "a")
                file_write.write(save_username_1 + "," + save_password_1 + "\n")
                file_write.close()
                print("your account has been saved", "\n")
        else:
            print("invalid USERNAME or PASSWORD", "\n")
            u_input.register()


class Control:

    def user_control(self, username_input, password_input, counter):
        u_input = UserInput()
        if counter != 0:
            if (username_input and password_input) != "":
                file = open("user_list.txt")
                delimiter = ","
                data = {}
                for line in file.readlines():
                    a = line.strip().split(delimiter)
                    if len(a) == 2:
                        data[a[0]] = a[1]
                if username_input in data:
                    password = data[username_input]
                    if password == password_input:
                        print("ACCESS")
                        # add
                    else:
                        print("wrong password")
                        print("you have", counter, "tries Left")
                        counter -= 1
                        u_input.login(i=counter)
                else:
                    print("USERNAME ist not in existence please try to REGISTER", "\n")
                    u_input.login(i=counter)
            else:
                print("invalid PASSWORD or USERNAME", "\n")
                u_input.login(i=counter)
        else:
            print("ACCESS DENIED")


class UserInput:

    def register(self):
        main_save = User()
        main_save.info_save(save_username_1=input("insert username: "),
                            save_password_1=input("insert password: "))

    def login(self, i):

        main_control = Control()
        main_control.user_control(username_input=input("insert your username: "),
                                  password_input=input("insert your password: "),
                                  counter=i)


class Main:

    def start(self):

        input_main = ""

        reg = UserInput()
        input_main = input("type R for REGISTER or L for LOGIN: ")
        if input_main == "R" or input_main == "r":
            success_main = "true"
            print("\n")
            reg.register()

        if input_main == "L" or input_main == "l":
            print("\n")
            reg.login(i=2)

        else:
            entry = Main()
            entry.start()


# entry point
Entry = Main()
Entry.start()