# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.db import models

from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
from django.contrib.auth.models import PermissionsMixin


class UserManager(BaseUserManager):
    use_in_migrations = True

    def _create_user(self, **extra_fields):
        """
        Creates and saves a User with the given username, email and password.
        """

        print ">>>>>>>>>>>>> fields %r " % extra_fields

        document = extra_fields.get("document")
        name = extra_fields.get("name")
        profile = extra_fields.get("profile")
        email = extra_fields.get("email")
        email = self.normalize_email(email)
        password = extra_fields.get("password")
        is_superuser = extra_fields.get("is_superuser")

        if profile not in (User.ROOT, User.ENTERPRISE, User.CHANGER):
            raise ValueError("Profile is invalid.")

        user = self.model(document=document, email=email, name=name, profile=profile, is_superuser=is_superuser)
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_user(self, **extra_fields):
        extra_fields.setdefault('is_staff', False)
        extra_fields.setdefault('is_superuser', False)
        return self._create_user(**extra_fields)

    def create_superuser(self, **extra_fields):

        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)
        extra_fields.setdefault('profile', User.ROOT)

        if extra_fields.get('is_superuser') is not True:
            raise ValueError('Superuser must have is_superuser=True.')

        return self._create_user(**extra_fields)


class User(AbstractBaseUser, PermissionsMixin):

    # kero mudar administration
    ROOT = 10
    # user of enterprise
    ENTERPRISE = 1
    # user type for changer
    CHANGER = 0

    PROFILE_CHOICES = (
        (ROOT, "Root"),
        (ENTERPRISE, "Empresa"),
        (CHANGER, "Mudando"),
    )

    document = models.CharField("CPF/CNPJ", max_length=14, null=False, unique=True, blank=False)
    name = models.CharField("Nome", max_length=150, null=False, blank=False)
    profile = models.IntegerField("Perfil", choices=PROFILE_CHOICES, null=False, blank=False)
    email = models.EmailField("Email", unique=True, blank=False)

    USERNAME_FIELD = "email"

    objects = UserManager()

    class Meta:
        db_table = "users"

    def get_full_name(self):
        return self.name

    @property
    def is_staff(self):
        return self.is_superuser