from typing import Optional
from django.contrib.auth.models import UserManager as BaseUserManager


class CustomUserManager(BaseUserManager):
    def create_user(
        self, username, email=None, password: Optional[str] = None, **extra_fields
    ):
        """Create and return a user with an email and password."""
        if not username:
            raise ValueError("The Username field must be set")

        user = self.model(username=username, email=email, **extra_fields)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, username, email=None, password=None, **extra_fields):
        """Create and return a superuser with an email and password."""
        extra_fields.setdefault("is_staff", True)
        extra_fields.setdefault("is_superuser", True)

        return self.create_user(
            username, email=email, password=password, **extra_fields
        )