from django.db import models
from django.contrib.auth.models import AbstractBaseUser, BaseUserManager, PermissionsMixin
from utils.base_model import BaseModel
from django.core.exceptions import ValidationError
from utils.validations.mobile import normalize_mobile
import uuid


class CUserManager(BaseUserManager):
    def create_user(self, username, password, **extra_fields):
        if not username:
            raise ValueError("Please Enter username")
        extra_fields['mobile'] = normalize_mobile(extra_fields.get('mobile'))
        user = self.model(username=username, **extra_fields)
        user.set_password(password)
        user.full_clean()
        user.save(using=self._db)
        return user

    def create_superuser(self, username, password, **extra_fields):
        extra_fields.setdefault('is_staff', True)
        extra_fields.setdefault('is_superuser', True)
        extra_fields.setdefault('is_active', True)

        return self.create_user(username, password, **extra_fields)


class CUser(BaseModel, AbstractBaseUser, PermissionsMixin):
    username = models.CharField(max_length=50, null=False, blank=False, unique=True)
    mobile = models.PositiveBigIntegerField(null=False, blank=False, unique=True)
    name_family = models.CharField(max_length=100, null=True, blank=True)
    is_active = models.BooleanField(default=False)
    is_staff = models.BooleanField(default=False)
    is_superuser = models.BooleanField(default=False)
    uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)

    USERNAME_FIELD = 'username'
    REQUIRED_FIELDS = ['mobile']

    objects = CUserManager()

    class Meta:
        permissions = [
            ('user_is_workspace_owner', 'user is workspace owner'),
            ('user_is_workspace_admin', 'user is workspace admin'),
            ('user_is_workspace_operator', 'user is workspace operator'),
            ('user_is_workspace_customer', 'user is workspace customer'),
        ]

    def __str__(self):
        return f'{self.name_family} - {self.username}'

    def clean(self):
        super().clean()
        self.mobile = normalize_mobile(self.mobile)
        if type(self).objects.filter(mobile=self.mobile).exclude(pk=self.pk).exists():
            raise ValidationError({"mobile": "کاربری با این شماره موبایل قبلاً ثبت شده است."})