import os
import csv


class BaseCar:
    def __init__(self, photo_file_name, brand, carrying):
        self.photo_file_name = photo_file_name
        self.brand = brand
        self.carrying = carrying

    def get_photo_file_ext(self):
        return os.path.splitext(self.photo_file_name)[1]


class Car(BaseCar):
    def __init__(self, photo_file_name, brand, carrying, passenger_seats_count):
        super().__init__(photo_file_name, brand, carrying)
        self.car_type = 'car'
        self.passenger_seats_count = passenger_seats_count


class Truck(BaseCar):
    def __init__(self, photo_file_name, brand, carrying, body_lwh):
        super().__init__(photo_file_name, brand, carrying)
        self.car_type = 'truck'
        lwh = body_lwh or '0x0x0'
        l, w, h = (float(i) for i in lwh.split('x'))
        self.body_length = l
        self.body_width = w
        self.body_height = h

    def get_body_volume(self):
        return self.body_length * self.body_width * self.body_height


class SpecMachine(BaseCar):
    def __init__(self, photo_file_name, brand, carrying, extra):
        super().__init__(photo_file_name, brand, carrying)
        self.car_type = 'spec_machine'
        self.extra = extra


def get_car_list(csv_filename):
    car_list = []
    with open(csv_filename) as csv_fd:
        reader = csv.reader(csv_fd, delimiter=';')
        next(reader)  # пропускаем заголовок
        for row in reader:
            try:
                if row[0] == 'car':
                    car_list.append(Car(row[3], row[1], float(row[5]), int(row[2])))
                elif row[0] == 'truck':
                    car_list.append(Truck(row[3], row[1], float(row[5]), row[4]))
                elif row[0] == 'spec_machine':
                    car_list.append(SpecMachine(row[3], row[1], float(row[5]), row[6]))
                else:
                    pass
            except IndexError:
                pass
    return car_list