from django.db import models
from django.contrib.auth.models import AbstractUser, BaseUserManager


class CustomUserManager(BaseUserManager):
    """Custome user manager."""
    def create_user(self, email, username, password=None, **extra_kwargs):
        """Create and saves a User with the given email, username, and password."""
        if not email:
            raise ValueError("Users must have an email address")

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

    def create_superuser(self, email, username, password=None, **extra_kwargs):
        """Create and saves a superuser with the given email, username, and password."""

        user = self.create_user(email, username, password=password)
        user.is_staff = True
        user.is_superuser = True
        user.save(using=self._db)
        return user


class User(AbstractUser):
    id = models.AutoField(primary_key=True)
    email = models.EmailField(max_length=150, unique=True)
    username = models.CharField(max_length=150, unique=True)

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['username']
    objects = CustomUserManager()