from django.db import models


class Country(models.Model):

    name = models.CharField(max_length=255)

    class Meta:
        app_label = 'addresses'
        verbose_name = 'Страна'
        verbose_name_plural = 'Страны'

    def __unicode__(self):
        return self.name


class Region(models.Model):

    country = models.ForeignKey('addresses.Country')
    name = models.CharField(max_length=255)

    class Meta:
        app_label = 'addresses'
        verbose_name = 'Регион'
        verbose_name_plural = 'Регионы'

    def __unicode__(self):
        return self.name

class City(models.Model):

    region = models.ForeignKey('addresses.Region')
    name = models.CharField(max_length=255)

    class Meta:
        app_label = 'addresses'
        verbose_name = 'Город'
        verbose_name_plural = 'Города'

    def __unicode__(self):
        return self.name

class Address(models.Model):

    city = models.ForeignKey('addresses.City')
    zip_code = models.CharField(max_length=255)
    street = models.CharField(max_length=255)
    building = models.CharField(max_length=32)
    apartment = models.CharField(max_length=32)

    class Meta:
        app_label = 'addresses'
        verbose_name = 'Адрес'
        verbose_name_plural = 'Адреса'

    def __unicode__(self):
        return '{} {}, {}, {}, {} {}, {}'.format(self.zip_code,
                                                 self.city.region.country.name,
                                                 self.city.region.name, self.city.name,
                                                 self.street, self.building, self.apartment)