from django.contrib.auth.models import BaseUserManager


class UserManager(BaseUserManager):
    def create_user(self, email, password=None, **extra_fields):
        if  not email :
            raise ValueError('Users must have an email address')
        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_superuser(self, email, password , **extra_fields):
        extra_fields.setdefault('is_superuser',True)
        extra_fields.setdefault('is_staff',True)
        extra_fields.setdefault('is_active',True)

        if extra_fields.get('is_superuser') is not True:
            raise ValueError('Superuser must have 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_active') is not True:
            raise ValueError('Superuser must have is_active=True.')
        return self.create_user(email,password,**extra_fields)