from django.contrib.auth.models import BaseUserManager


class UserManager(BaseUserManager):
    use_in_migrations = True

    def create_user(self, username, email=None, password=None, **extra_fields):
        if not username:
            raise ValueError("Users must have a username")
        if not email:
            raise ValueError("Users must provide an email")

        email = self.normalize_email(email)
        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):
        extra_fields.setdefault("is_staff", True)
        extra_fields.setdefault("is_superuser", True)
        extra_fields.setdefault("role", "Admin")  # Automatically Admin
        extra_fields.setdefault("phone_number", "")  # Optional

        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(username, email, password, **extra_fields)