from django.conf import settings
from django.contrib import admin
from django.contrib.auth.models import User, UserManager, Group
from django.db import models
from django.db.models.signals import post_save
import datetime

            
class Ldt(User):
#    irigroups = models.ManyToManyField(IriGroup, blank=True)
    
    class Meta:
        verbose_name = 'iri user'
        verbose_name_plural = 'iri users'
    
    def __unicode__(self):
        return self.username
        

class LdtManager(UserManager):
    def create_user(self, username, email, password=None):
        "Creates and saves a User with the given username, e-mail and password."
        now = datetime.datetime.utcnow()
        new_user = Ldt(None, username, '', '', email.strip().lower(), 'placeholder', False, True, False, now, now)
        if password:
            new_user.set_password(password)
        else:
            new_user.set_unusable_password()
        new_user.save()
        public_group = Group.objects.get(name=settings.PUBLIC_GROUP_NAME)
        new_user.groups.add(public_group)
        return new_user  
    
    
class UserProfile (models.Model): 
    user = models.OneToOneField(User)
    language = models.CharField(max_length=2, default=settings.LANGUAGE_CODE[:2])

    @staticmethod
    def create_user_profile(sender, instance, created, **kwargs):
        if created:
            UserProfile.objects.create(user=instance)
       

post_save.connect(UserProfile.create_user_profile, sender=User)
   
User.objects = LdtManager()
User.objects.contribute_to_class(User, "objects")

admin.site.register(Ldt)