from django.contrib.auth.models import (
    AbstractBaseUser,
    BaseUserManager,
    PermissionsMixin,
)
from django.db import models
from timezone_field import TimeZoneField

from common.models import UUIDMixin


class UserManager(BaseUserManager):
    def _create_user(self, email, password, **extra_fields):
        """
        Create and save a user with the given email, and password.
        """
        if not email:
            raise ValueError("The given email must be set")

        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_user(self, email=None, password=None, **extra_fields):
        extra_fields.setdefault("is_staff", False)
        extra_fields.setdefault("is_superuser", False)
        return self._create_user(email, password, **extra_fields)

    def create_superuser(self, email, password, **extra_fields):
        extra_fields.setdefault("is_staff", True)
        extra_fields.setdefault("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_superuser") is not True:
            raise ValueError("Superuser must have is_superuser=True.")

        return self._create_user(email, password, **extra_fields)


class User(UUIDMixin, AbstractBaseUser, PermissionsMixin):
    """
    Custom user model using email as the username.
    """

    email = models.EmailField(unique=True, max_length=255)
    name = models.CharField(max_length=255, null=True, blank=True)

    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)

    date_joined = models.DateTimeField(auto_now_add=True)
    timezone = TimeZoneField(default="Europe/Paris")

    USERNAME_FIELD = EMAIL_FIELD = "email"
    REQUIRED_FIELDS = []

    objects = UserManager()
