from django.db import models

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


# Create your models here.

class UserProfileManager(BaseUserManager):
    """helps Django work with our custom user model"""

    def create_user(self,email,name,password=None):
        """creates a new user"""

        if not email:
            raise ValueError('user must provide email')

        email = self.normalize_email(email)
        user = self.model(email=email,name=name)

        user.set_password(password)
        user.save(using=self._db)

        return user

    def create_superuser(self,email,name,password):
        """creates and save a new super user """
        user = self.create_user(email,name,password)
        user.is_superuser = True
        user.is_staff = True

        user.save(using=self._db)

        return user


class UserProfile(AbstractBaseUser,PermissionsMixin):
    """This class is used to define user profile inside our system."""

    email = models.EmailField(max_length=255, unique=True)
    name = models.CharField(max_length=255)
    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)

    object = UserProfileManager()

    USERNAME_FIELD ='email'
    REQUIRED_FIELDS = ['name']

    def get_full_name(self):
        """used to get users full name"""

        return self.name

    def get_short_name(self):
        """used to get short name"""

        return self.name

    def __str__(self):
        """used this when it needs to convert object to string"""

        return self.email
