from django.contrib.auth.models import AbstractUser, BaseUserManager
from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone

class CustomUser(AbstractUser):
    username = None
    email = models.EmailField(_('email address'), unique=True, blank=False)
    is_manager = models.BooleanField(default=False, blank=False)

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = []

    def __str__(self):
        return self.email

class CustomUserManager(BaseUserManager):

    def _create_user(self, email, password, is_staff, is_superuser,is_manager ,**extra_fields):

        now = timezone.now()

        if not email:
            raise ValueError(_(u'The given username must be set'))
        email = self.normalize_email(email)
        user = self.model(email=email,
                          is_staff=is_staff, is_active=True,
                          is_superuser=is_superuser,is_manager=is_manager , last_login=now,
                          date_joined=now, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

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

    def create_superuser(self, email, password, **extra_fields):
        return self._create_user(email, password, True, True, True,
                                 **extra_fields)