from django.contrib.auth.base_user import BaseUserManager
from django.utils.translation import gettext_lazy as _


class UserManager(BaseUserManager):
    def create_user(self, firstname, lastname, email, phone_number, password, **other_fields):
        
        if not email:
            raise ValueError(_('You must provide an email address'))
        email = self.normalize_email(email)
        user = self.model(firstname=firstname, lastname=lastname, email=email, phone_number=phone_number, **other_fields)
        user.set_password(password)
        user.save()
        return user

    def create_superuser(self, firstname, lastname, email, phone_number, password, **other_fields):
        other_fields.setdefault('is_staff', True)
        other_fields.setdefault('is_superuser', True)
        other_fields.setdefault('is_active', True)

        if other_fields.get('is_staff') is not True:
            raise ValueError(_('Superuser must have is_staff=True.'))
        if other_fields.get('is_superuser') is not True:
            raise ValueError(_('Superuser must have is_superuser=True.'))
        return self.create_user(firstname, lastname, email, phone_number, password, **other_fields)