from django.contrib.auth.base_user import BaseUserManager, AbstractBaseUser
from django.contrib.auth.models import AbstractUser, PermissionsMixin
from django.core.mail import send_mail
from django.db.models.signals import post_save
from django.dispatch import receiver
from django.utils import timezone
from django.utils.translation import gettext_lazy as _, gettext_noop
from django.db import models
import uuid


# Create your models here.
class DevUserManager(BaseUserManager):
    use_in_migrations = True

    def _create_user(self, email, password, **extra_fields):
        """
        Create and save a user with the given username, email, and password.
        """
        if not email:
            raise ValueError('The given username must be set')
        email = self.normalize_email(email)
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_user(self, email, password=None, **extra_fields):
        extra_fields.setdefault('is_staff', False)
        extra_fields.setdefault('is_superuser', False)
        return self._create_user(email, password, **extra_fields)

    def create_superuser(self, email, password, **extra_fields):
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)

        if extra_fields.get('is_staff') is not True:
            raise ValueError('Superuser must have is_staff=True.')
        if extra_fields.get('is_superuser') is not True:
            raise ValueError('Superuser must have is_superuser=True.')

        return self._create_user(email, password, **extra_fields)


class User(AbstractBaseUser, PermissionsMixin):
    id = models.UUIDField(primary_key=True, editable=False, default=uuid.uuid4)
    first_name = models.CharField(_('first name'), max_length=30, blank=True)
    last_name = models.CharField(_('last name'), max_length=150, blank=True)
    email = models.EmailField(_('email address'), blank=False, unique=True)
    is_staff = models.BooleanField(
        _('staff status'),
        default=False,
        help_text=_('Designates whether the user can log into this admin site.'),
    )
    is_active = models.BooleanField(
        _('active'),
        default=True,
        help_text=_(
            'Designates whether this user should be treated as active. '
            'Unselect this instead of deleting accounts.'
        ),
    )
    date_joined = models.DateTimeField(_('date joined'), default=timezone.now)
    email_activated = models.BooleanField(_('email activated'), default=False)

    objects = DevUserManager()

    EMAIL_FIELD = 'email'
    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = []

    def clean(self):
        super().clean()
        self.email = self.__class__.objects.normalize_email(self.email)

    def get_full_name(self):
        full_name = '%s %s' % (self.first_name, self.last_name)
        return full_name.strip()

    def email_user(self, subject, message, from_email=None, **kwargs):
        send_mail(subject, message, from_email, [self.email], **kwargs)

    class Meta:
        verbose_name = _('user')
        verbose_name_plural = _('users')


class UserProfile(models.Model):
    user = models.OneToOneField(User, verbose_name=_("User"), on_delete=models.CASCADE, primary_key=True)
    bio = models.TextField(_("Bio"), max_length=500, blank=True)
    job_title = models.CharField(_("Job Title"), max_length=255, blank=True)
    linkedin = models.CharField(_("Linkedin"), blank=True, max_length=255)
    twitter = models.CharField(_("Twitter"), blank=True, max_length=255)
    instagram = models.CharField(_("instagram"), blank=True, max_length=255)
    created = models.DateTimeField(_("Created"), auto_now_add=True, max_length=255)
    updated = models.DateTimeField(_("Updated"), auto_now=True, max_length=255)

    class Meta:
        verbose_name = _('User Profile')
        verbose_name_plural = _('User Profile')


@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        UserProfile.objects.create(user=instance)
