from django.contrib.auth.models import BaseUserManager, AbstractBaseUser, AbstractUser, User
from django.core.mail import send_mail
from django.db import models
from datetime import datetime


class ProfileManager(BaseUserManager):
    def _create_user(self, phone, email, password,
                     is_superuser, **extra_fields):
        now = datetime.now()
        if not phone:
            raise ValueError('Телефон не может быть пустым')
        email = self.normalize_email(email)
        user = self.model(phone=phone, email=email,
                          is_active=True,
                          is_superuser=is_superuser, last_login=now,
                          date_joined=now, **extra_fields)
        user.set_password(password)
        user.save()
        return user

    def create_user(self, phone, email=None, password=None, **extra_fields):
        return self._create_user(phone, email, password, False,
                                 **extra_fields)

    def create_superuser(self, phone, email, password, **extra_fields):
        return self._create_user(phone, email, password, True,
                                 **extra_fields)


class Profile(AbstractBaseUser):
    phone = models.CharField('Номер мобильного телефона', max_length=15, unique=True, db_index=True)
    email = models.EmailField('Email', blank=False, null=False, default=None, unique=False)
    first_name = models.CharField('Имя', max_length=30, blank=True)
    last_name = models.CharField('Фамилия', max_length=30, blank=True)
    date_joined = models.DateTimeField('Регистрация', default=datetime.now)
    is_superuser = models.BooleanField('Админ', default=False)
    is_active = models.BooleanField('Активный', default=True, db_index=True)
    temp_password = models.IntegerField('Одноразовый пароль', default=None, blank=True, null=True)
    sale = models.IntegerField('Индивидуальная скидка (Beuchat и Scorpena) %', default=0, blank=False, null=False)

    USERNAME_FIELD = 'phone'
    REQUIRED_FIELDS = ['email']

    objects = ProfileManager()

    class Meta:
        verbose_name = 'пользователь'
        verbose_name_plural = 'пользователи'

    def __str__(self):
        return self.phone

    def get_full_name(self):
        return '{} {}'.format(self.first_name, self.last_name)

    def get_short_name(self):
        return self.first_name

    def has_perm(self, perm, obj=None):
        return True

    def has_module_perms(self, app_label):
        return True

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

    def email_user(self, subject, message, from_email=None, **kwargs):
        send_mail(subject, message, from_email, [self.email], **kwargs)