"""Location app models."""
from django.contrib.postgres.fields import JSONField
from django.contrib.gis.db import models
from django.utils.translation import gettext_lazy as _
from utils.models import ProjectBaseMixin, LocaleManagerMixin


class CountryManager(LocaleManagerMixin):
    """Extended manager for Country model."""


class Country(ProjectBaseMixin):
    """Country model."""

    name = JSONField(null=True, blank=True, default=None,
                     verbose_name=_('Name'), help_text='{"en":"some text"}')
    code = models.CharField(max_length=255, blank=True, null=True,
                            default=None, unique=True, verbose_name=_('Code'))

    objects = CountryManager()

    class Meta:
        """Meta class."""

        verbose_name_plural = _('Countries')
        verbose_name = _('Country')

    def __str__(self):
        return self.code


class Region(models.Model):
    """Region model."""

    name = models.CharField(_('name'), max_length=250)
    code = models.CharField(_('code'), max_length=250)
    parent_region = models.ForeignKey(
        'self', verbose_name=_('parent region'), null=True,
        blank=True, default=None, on_delete=models.CASCADE)
    country = models.ForeignKey(
        Country, verbose_name=_('country'), on_delete=models.CASCADE)

    class Meta:
        """Meta class."""

        verbose_name_plural = _('regions')
        verbose_name = _('region')

    def __str__(self):
        return self.name


class City(models.Model):
    """Region model."""

    name = models.CharField(_('name'), max_length=250)
    code = models.CharField(_('code'), max_length=250)
    region = models.ForeignKey(
        Region, verbose_name=_('parent region'), on_delete=models.CASCADE)
    country = models.ForeignKey(
        Country, verbose_name=_('country'), on_delete=models.CASCADE)

    postal_code = models.CharField(
        _('postal code'), max_length=10, default='', help_text=_('Ex.: 350018'))

    is_island = models.BooleanField(_('is island'), default=False)

    class Meta:
        verbose_name_plural = _('cities')
        verbose_name = _('city')

    def __str__(self):
        return self.name


class Address(models.Model):
    """Address model."""
    city = models.ForeignKey(City, verbose_name=_('city'), on_delete=models.CASCADE)
    street_name_1 = models.CharField(
        _('street name 1'), max_length=500, blank=True, default='')
    street_name_2 = models.CharField(
        _('street name 2'), max_length=500, blank=True, default='')
    number = models.IntegerField(_('number'))
    postal_code = models.CharField(
        _('postal code'), max_length=10, blank=True,
        default='', help_text=_('Ex.: 350018'))
    coordinates = models.PointField(
        _('Coordinates'), blank=True, null=True, default=None)

    class Meta:
        verbose_name_plural = _('Address')
        verbose_name = _('Address')

    def __str__(self):
        return f'{self.id}: {self.get_street_name()[:50]}'

    def get_street_name(self):
        return self.street_name_1 or self.street_name_2

    @property
    def latitude(self):
        return self.coordinates.y

    @property
    def longitude(self):
        return self.coordinates.x