# -*- coding: utf-8 -*-
"""
Custom registration back-end which auto-activates new user accounts
without the need for a confirmation email.

"""

# Library imports
from django.contrib.auth import authenticate, login
from django.contrib.sites.models import RequestSite
from django.contrib.sites.models import Site
from django.core.urlresolvers import reverse
from registration import signals
from registration.backends.default import DefaultBackend
from registration.models import RegistrationProfile

class AutoActivateBackend(DefaultBackend):
    """
    Over-rides DefaultBackend to stop confirmation emails being sent.

    """

    def register(self, request, **kwargs):
        """
        Suppresses the activation email, and makes the user active immediately

        """
        username, email, password = kwargs['username'], kwargs['email'], kwargs['password1']
        if Site._meta.installed: # pylint: disable-msg=W0212
            site = Site.objects.get_current()
        else:
            site = RequestSite(request)
        new_user = RegistrationProfile.objects.create_inactive_user(username, email,
                                                                    password, site,
                                                                    send_email=False)
        new_user.is_active = True
        new_user.save()
        signals.user_registered.send(sender=self.__class__,
                                     user=new_user,
                                     request=request)

        # Auto-login the new user.
        if new_user.is_authenticated():
            new_user = authenticate(username=username, password=password)
            if new_user is not None:
                login(request, new_user)

        return new_user

    def post_registration_redirect(self, request, user):
        """
        Logs the user in automatically, and redirects them to the welcome page

        """
        return (reverse('app_registration.views.forward'), (), {})